EDS3090 - Bender Benelux BV
EN
Manual
EDS3090
…91, …92, …96
ISOSCAN®
EDS195P
I n I s
ALARM
I n
Is
HOLD
RESET
INFO
MENU
ESC
OK
Portable equipment for insulation fault location
for energised and deenergised AC and DC systems
Software version: D399 V2.0
EDS309x_D00012_04_M_XXEN/10.2015
Bender GmbH & Co. KG
P.O.Box 1161 • 35301 Grünberg • Germany
Londorfer Straße 65 • 35305 Grünberg • Germany
Tel.: +49 6401 807-0 • Fax: +49 6401 807-259
E-mail: info@bender.de • www.bender.de
Photos: Bender archives and bendersystembau archives.
© Bender GmbH & Co. KG
All rights reserved.
Reprinting only with permission
of the publisher.
Subject to change!
Table of Contents
1. How to get the most out of this manual ............................................................. 7
1.1
How to use this manual ......................................................................................................... 7
1.2
Explanations of symbols and notes ................................................................................... 7
1.3
Overview of chapters .............................................................................................................. 8
2. Safety instructions .................................................................................................. 9
2.1
Intended use .............................................................................................................................. 9
2.2
Device-specific safety instructions .................................................................................... 9
2.3
General safety instructions ................................................................................................ 10
2.4
Qualified personnel .............................................................................................................. 10
3. System description .............................................................................................. 11
3.1
System components ............................................................................................................ 11
3.1.1 Overview of system components ................................................................................... 11
3.1.2 Insulation fault location equipment type list ............................................................. 12
3.1.3 Accessories .............................................................................................................................. 13
3.2
Function of the system components ............................................................................. 14
3.2.1 Locating current injector PGH18… ................................................................................ 14
3.2.2 Insulation fault locator EDS195P ..................................................................................... 14
3.2.3 Measuring clamps ................................................................................................................. 14
3.2.4 Coupling device AGE185 .................................................................................................... 15
3.3
Operating principle for insulation fault location (IΔL) ............................................. 15
3.3.1 Schematic diagram EDS system ...................................................................................... 16
3.3.2 Test cycle .................................................................................................................................. 16
3.3.3 Definitions ............................................................................................................................... 17
3.3.4 Currents in the EDS system ............................................................................................... 17
3.4
Operating principle for residual current measurement (IΔn) ............................... 18
4. Considerations prior to use ................................................................................ 19
4.1
How does the equipment for insulation fault location work ................................ 19
4.2
Requirements for reliable insulation fault location .................................................. 20
4.3
Reduced locating current .................................................................................................. 22
4.4
Response sensitivity characteristics of the EDS195P ............................................... 22
4.4.1 Response characteristics for main circuits in 3AC systems .................................... 23
EDS309x_D00012_04_M_XXEN/10.2015
3
Table of Contents
4.4.2 Response characteristics for main circuits in AC systems ....................................... 24
4.4.3 Response characteristics for main circuits in DC systems ....................................... 24
4.4.4 Response characteristics for control circuits in AC systems ................................... 25
4.4.5 Response characteristics for control circuits in DC systems .................................. 25
5. Connecting the locating current injector ....................................................... 27
5.1
Disconnecting insulation monitoring device .............................................................. 27
5.2
Locating current injector in an electrically isolated IT system .............................. 27
5.3
Connection to a live IT system .......................................................................................... 28
5.4
Connection to a PV system ................................................................................................ 29
6. Operation ............................................................................................................... 31
6.1
Short description of insulation fault location (EDS mode) ..................................... 31
6.1.1 Commissioning the PGH18… for locating current injection ................................. 31
6.1.2 Insulation fault location using EDS195P ....................................................................... 31
6.2
Detailed description of insulation fault location ........................................................ 31
6.3
Description of a residual current measurement ......................................................... 31
6.4
Displays and controls on the PGH18… ......................................................................... 32
6.5
Displays and controls on the EDS195P .......................................................................... 33
6.6
Operating the EDS195P ....................................................................................................... 34
6.6.1 Switching on and off the device ...................................................................................... 34
6.6.2 Changing the measuring clamp ....................................................................................... 35
6.6.3 Improved legibility due to display lighting .................................................................. 35
6.6.4 Changing between insulation fault location IΔL and
residual current measurement IΔn operating modes .............................................. 35
6.6.5 Quickly checking the response values for IΔL and IΔn ............................................ 35
6.6.6 Checking Info menu ............................................................................................................. 35
6.6.7 Significance of the display elements .............................................................................. 36
6.7
Standard displays on the EDS195P ................................................................................. 36
6.7.1 EDS measurement (IΔL) ....................................................................................................... 36
6.7.1.1
Standard display if there is no cable to be measured in the clamp ............. 36
6.7.1.2
Standard display for EDS measurement (IΔL) with cable in the clamp ....... 37
6.7.1.3
Standard display for measuring faults or pauses between changes in
polarity of the measuring pulse ................................................................................ 37
6.7.2 RCM measurement (IΔn) ..................................................................................................... 37
6.7.2.1
4
Standard display for RCM measurement (IΔn) with cable in the clamp ..... 37
6.8
Alarms during EDS measurement or RCM measurement ....................................... 37
6.9
Indication of device and measuring errors .................................................................. 38
6.10
Factory settings EDS195P (state as supplied) .............................................................. 38
6.11
Menu structure ....................................................................................................................... 39
EDS309x_D00012_04_M_XXEN/10.2015
Table of Contents
6.11.1 Navigating in the menu ...................................................................................................... 40
6.11.2 Menu item: Settings ............................................................................................................. 40
6.11.3 Menu item: System .............................................................................................................. 41
6.11.4 Menu item: Harmonics ........................................................................................................ 41
6.11.5 Menu item: IΔL alarms ......................................................................................................... 41
6.11.6 Menu item: IΔn logger ........................................................................................................ 42
6.12
Practical usage ....................................................................................................................... 42
6.12.1 Insulation fault location in a system without a permanently installed
EDS system .............................................................................................................................. 42
6.12.2 Insulation fault location in a system with a permanently installed
EDS system .............................................................................................................................. 45
6.12.3 Insulation fault location in diode-decoupled DC systems ..................................... 47
6.12.4 Usage of the EDS195P as a residual current meter ................................................... 49
6.12.5 Indication of the harmonics during residual current measurement .................. 50
6.13
Coupling device AGE185 for higher system voltages ............................................. 51
6.14
Power supply for the EDS195P ......................................................................................... 52
6.14.1 Displaying charge state ...................................................................................................... 52
6.14.2 Changing batteries ............................................................................................................... 52
6.14.3 Power supply unit supplied .............................................................................................. 52
7. Technical specifications ...................................................................................... 53
7.1
Technical specifications for the system EDS309… ................................................... 53
7.2
Technical specifications PGH18… .................................................................................. 53
7.3
Technical specifications EDS195P ................................................................................... 54
7.4
Technical specifications measuring clamps ................................................................ 55
7.5
Technical specifications AGE185 ..................................................................................... 56
7.6
Standards and certifications ............................................................................................. 56
7.7
Dimension diagrams ............................................................................................................ 57
7.8
Status word ............................................................................................................................. 58
7.9
Ordering data including accessories ............................................................................. 59
7.10
Component list ...................................................................................................................... 60
8. Frequently Asked Questions .............................................................................. 61
INDEX ........................................................................................................................... 63
EDS309x_D00012_04_M_XXEN/10.2015
5
Table of Contents
6
EDS309x_D00012_04_M_XXEN/10.2015
1. How to get the most out of this manual
1.1 How to use this manual
This operating manual describes the basic principles of insulation fault location as well as connecting
and operating an item of portable equipment for insulation fault location. It is designed for qualified
electricians, and in particular for those designing, installing and operating electrical equipment.
Please read this detailed operating manual and the enclosed sheet entitled "Important safety instructions for Bender products" prior to using the EDS3090. This document must be kept in easy
reach in the case.
If you have any questions, please do not hesitate to contact us. Please contact our Technical Sales
Department. We are also happy to provide on-site service. Please contact our Service Department for
more information.
Service helpline: 0700-BenderHelp (telephone and fax)
Carl-Benz-Strasse 10 • 35305 Gruenberg • Germany
Tel: +49 6401 807-760 • Fax: +49 6401 807-629
E-mail: info@bender-service.com • www.bender.de
1.2 Explanations of symbols and notes
To make it easier for you to understand and revisit certain sections of text and instructions in the
manual, we have used symbols to identify important instructions and information. The meaning of
these symbols is explained below:
The signal word indicates that there is a high risk danger that will result in electrocution or serious injury if not avoided.
DANGER
This signal word means that there is a medium risk of danger that can lead to
death or serious injury, if not avoided.
WARNING
This signal word indicates a low level risk that can result in minor or moderate
injury or damage to property if not avoided.
CAUTION
This symbol denotes information intended to assist the user
to make optimum use of the product.
EDS309x_D00012_04_M_XXEN/10.2015
7
How to get the most out of this manual
1.3 Overview of chapters
1. How to get the most out of this manual:
This chapter provides information about using this documentation.
2. Safety instructions:
This section provides information about risks affecting installation and operation.
3. System description:
In this chapter you will find an overview of the system components, a description of their function and the basic principles of insulation fault location.
The principle of residual current measurement is described in the final section.
4. Considerations prior to use:
This chapter describes the practical aspects of insulation fault location and provides numerous
characteristic curves for assessing the response values to be set.
5. Connecting the locating current injector:
The connection of the PGH18… to a system to be tested is described here.
6. Operation:
This chapter contains a description of the graphical user interface on the EDS195P. There is
also an illustration of the menu structure as well as illustrations of the various standard displays.
You will also find information of the supply of power to the EDS195P here.
7. Technical specifications:
Along with tabular data this chapter contains information on standards and the dimensions of
the system components.
8. Frequently Asked Questions:
Use this chapter to quickly identify and rectify any malfunctions that occur.
9. INDEX:
Use the index to quickly find the desired keywords.
8
EDS309x_D00012_04_M_XXEN/10.2015
2. Safety instructions
2.1 Intended use
The portable insulation fault location system EDS309… is used to locate insulation faults in IT systems. All variants are suitable for the measurement of residual currents in TN and TT systems. The
EDS3096PG is particularly suitable for insulation fault location in electrically isolated systems.
Please observe the limits on the area of application stated in the technical specifications, as well as
the measuring categories for the measuring clamps used. If, in the specific case, measuring current
transformers other than the measuring clamps supplied are used with the EDS195P, attention is to
be paid to ensuring the connection wires and transformer have an adequate nominal insulation voltage (overvoltage category, see Technical specifications)
Use which deviates from or is beyond the scope of these technical specifications is considered noncompliant.
System interference and high system leakage capacitances can degrade the accuracy of the measurement.
CAUTION
2.2 Device-specific safety instructions
Hazard due to excessively high locating current or excessively high
locating voltage!
An excessively high PGH18… locating current may damage sensitive loads (e.g.
in control circuits) or trigger unintended switching processes. For this reason
select a lower locating current for these systems (1 or 10 mA).
For instance it is only allowed to use the EDS3091 or EDS3091PG in systems with
programmable logic controllers (PLCs).
CAUTION
The locating voltage of DC 50 V produced by the locating current injector
PGH186 can cause interference at sensitive system components. In case of
doubt, contact Bender.
The locating current from the PGH185 or PGH186 can cause residual current devices to trip. The locating current is limited to maximum 25 mA (or 10 mA), however 30 mA residual current devices may trip, for instance, between 15 and 30
mA.
It is necessary to aim for the best possible conductor symmetry in the measuring
clamp. Otherwise the measuring clamp may go into saturation due to an excessively high load current and cause an alarm IΔn >10A.
EDS309x_D00012_04_M_XXEN/10.2015
9
Safety instructions
2.3 General safety instructions
Along with this operating manual, the enclosed "Important safety instructions for Bender products"
form part of the documentation for this device.
2.4 Qualified personnel
Only a qualified electrician is allowed to use the EDS3090 devices. The electrician should be familiar
with the assembly, commissioning and operation of the equipment and have undergone appropriate training. The person using the EDS system must have read this manual and understood all the
instructions relating to safety.
10
EDS309x_D00012_04_M_XXEN/10.2015
3. System description
3.1 System components
On page 60, you will find a detailed overview of the scope of delivery of the EDS309x versions. The
following illustration provides a choice of the possible components.
3.1.1
Overview of system components
The primary task of the EDS309… is insulation fault location in IT systems. For this purpose the
individual components of the EDS309… are used in combination.
2
1
PSA30
I
EDS195P
n
I
20
L
ME
Da SSZA
ten NG
Du bla E /
rch tt
CL
Art.- me / Datas
AM
ss
ma Nr. / Ar er / heetP ON
Di
x. 1
PR
A t.-no. amete: TGH1 OB
E
:B
r
1000600 V
980 : 52 320
mA CAT
694 mm
/ 0,1 III
mA
~
Im
ax
ALARM
ON
ESC
HOLD
INFO
RESET
MENU
10
0m
M A
I n
I L
10
mA
25
mA
Us
PS
A30
ON
52
ISOSCAN®
L3
)
(+
L2
L1
(-)
OK
3(N)AC 0...575V mit/with 500...790V
DC
0...504V AGE185 400...960V
PGH186
3
4
1
Aluminium case with handle
2
Measuring clamp PSA3020 (main circuits) or PSA3320 (control circuits)
Clamp inside diameter 20 mm
3
Locating current injector PGH18…
For generating a locating current for insulation fault location
4
Insulation fault locator EDS195P
For connecting measuring clamps and for finding insulation faults
5
Measuring clamp PSA3052 (main circuits) or PSA3352 (control circuits)
Clamp inside diameter 52 mm
EDS309x_D00012_04_M_XXEN/10.2015
5
11
System description
3.1.2
Insulation fault location equipment type list
It is possible to undertake a residual current measurement in TT and TN systems (earthed systems)
using all the device variants listed below.
The following overview describes which measuring tasks can be undertaken with which models:
Equipment for insulation fault location in main circuits
1. Permissible system voltage in the main circuits:
– Insulation fault location in IT systems up to AC 42…460 Hz, 20…575 V and DC 20…504 V
– Insulation fault location using AGE185 up to AC 42…460 Hz, 500…790 V and DC 400…960 V
EDS3090:

Can be used in IT systems in which a locating current injector PGH471 or an IRDH575 is already
installed.
EDS3090PG:

Can be used in IT systems in which neither a locating current injector PGH471 nor an IRDH575 is
already installed.

Supply voltage for the locating current generator PGH185 supplied:
AC 50…60 Hz, 230 V
EDS3090PG-13:

Can be used in IT systems in which neither a locating current injector PGH471 nor an IRDH575 is
already installed.

Supply voltage for the locating current generator PGH185-13 supplied:
AC 50…60 Hz, 90…132 V
2. Permissible system voltage in the main circuits:
– Insulation fault location in IT systems up to AC 42…460 Hz, 0…575 V and DC 0…504 V
– Insulation fault location using AGE185 up to AC 42…460, Hz 500…790 V and DC 400…960 V
EDS3096PG:

Can be used in IT systems in which neither a locating current injector PGH471 nor an IRDH575 is
already installed.

Supply voltage for the locating current generator PGH186 supplied:
AC 50…60 Hz, 230 V

Insulation fault location, also in IT systems electrically isolated on all poles
EDS3096PG-13:

Can be used in IT systems in which neither a locating current injector PGH471 nor an IRDH575 is
already installed.

Supply voltage for the locating current generator PGH186-13 supplied:
AC 50…60 Hz, 90…132 V

Insulation fault location, also in IT systems electrically isolated on all poles
12
EDS309x_D00012_04_M_XXEN/10.2015
System description
EDS3096PV:

Applicable in PV systems without a locating current injector installed.

Supply voltage for the delivered locating current injector PGH186: AC 50…60 Hz, 230 V.

Insulation fault location, also in IT systems disconnected on all poles or in de-energised IT systems.
Equipment for insulation fault location in control circuits
Permissible system voltage in the control circuits:
Insulation fault location in IT systems up to AC 42…460 Hz, 20…265 V and DC 20…308 V.
EDS3091:

Can be used in IT systems in which a locating current injector PGH473 or an IRDH575 is already
installed.
EDS3091PG:

Can be used in IT systems in which neither a locating current injector PGH473 nor an IRDH575 is
already installed.

Supply voltage for the locating current generator PGH183 supplied:
AC 50…60 Hz, 230 V
EDS3091PG-13:

Can be used in IT systems in which neither a locating current injector PGH473 nor an IRDH575 is
already installed.

Supply voltage for the locating current generator PGH183-13 supplied:
AC 50…60 Hz, 90…132 V
Equipment for insulation fault location in main circuits and control circuits
EDS3092PG:

Contains the components and combines the features of the EDS3090PG and EDS3091PG
3.1.3
Accessories
You will find information on the standard accessories as well as on optional accessories in the ordering data on page 59 and in the component list on page 60.
Only use the components supplied by us on working with the EDS309…. Commercially available measuring clamps are not allowed to be used! This statement also applies to measuring clamps or measuring current transformers from
the Bender range that are not expressly intended to be used with the EDS309….
Along with the measuring clamps supplied, it is allowed to connect to the
EDS195P the following measuring current transformers from the Bender series:
WF…
W… /WR… /WS…
W…-8000/WS…-8000
Series W…AB current transformers cannot be used!
For series WF… current transformers you will need a BNC to PS2 adapter cable, see page 59.
EDS309x_D00012_04_M_XXEN/10.2015
13
System description
3.2 Function of the system components
3.2.1
Locating current injector PGH18…
The PGH18… generates a defined locating current. The magnitude of the current is dependent on
the insulation fault present and the system voltage.

The PGH185 or PGH186 limits the locating current to maximum 25 mA or maximum 10 mA
depending on the switch setting.

The PGH183 limits the locating current to maximum 2.5 mA or maximum 1 mA depending on
the switch setting.

The PGH186 applies the locating current in electrically isolated IT systems or in IT systems with
a system voltage < 50 V using an integrated voltage source (DC 50 V). In IT systems with a system voltage > 50 V the existing voltage in the system is used to drive the locating current.
3.2.2
Insulation fault locator EDS195P
The insulation fault locator EDS195P has the following measuring functions:

Insulation fault location IΔL (EDS mode) for use in IT AC or DC systems:
– Either as a component of the portable equipment for insulation fault location EDS309…
– Or as an additional insulation fault locator in permanently installed equipment for insulation
fault location with IRDH575 or PGH1… as well as EDS46…/49….

Residual current measurement IΔn (RCM mode) for usage in TN or TT AC systems. The response
value range can be found in table 3.1 on page 14.
Response value
The response value is defined by the sensitivity of the EDS195P. This value can be set in both DC and
AC and 3AC IT systems as an arithmetic mean in accordance with Tabelle 3.1 auf Seite 14. System interference and high system leakage capacitances can degrade the accuracy.
3.2.3
Measuring clamps
Measuring clamps measure the locating current or the residual current. They have a test lead approx.
2 m long. The connection to the EDS195P is made using a BNC connection.
The following table summarises the most important data for the usage of the different measuring
clamps.
IT system
Measuring
clamps
Measuring range
Response value
Measuring
clamps
TN/TT system
Measuring range
Response value
Main circuit
(EDS3090…, 3092…, 3096…)
Control circuit
(EDS3091…)
PSA3020, PSA3052, PSA3165
PSA3320, PSA3352
2…50 mA
0.2…5 mA
2…10 mA, ±30% / ±2 mA
0.2…1 mA, ±30 % / ±0.2 mA
PSA3020, PSA3052, PSA3165
PSA3320, PSA3352
5 mA…10 A
10 mA…10 A
2 mA…2 A
5 mA…1 A
Tab. 3.1: Measuring clamps and response values for the EDS195P
If measuring current transformers are used instead of measuring clamps, you will need the adapter
supplied: BNC/4-mm connector. See table on page 60.
14
EDS309x_D00012_04_M_XXEN/10.2015
System description
3.2.4
Coupling device AGE185
The coupling device AGE185 expands the nominal voltage range of the equipment for insulation
fault location EDS309…. It enables the equipment to be connected to system nominal voltages up
to AC 790 V or DC 960 V.
3.3 Operating principle for insulation fault location (IΔL)
On the occurrence of the first insulation fault in IT systems a residual current flows that is essentially
defined by the system leakage capacitances. The basic concept of fault location is therefore to briefly
close the fault circuit using a defined resistance. With this principle a locating current is provided by
the system voltage and this locating current contains a signal that can be evaluated.
The locating current is generated periodically by the locating current injector PGH18… (part of the
EDS309…PG system).
The locating current can also be generated by an IRDH575 or a locating current injector PGH47….
The amplitude and duration of the locating current is limited. During this process the system conductors are alternately
connected to earth via a defined resistance. The locating current produced as a result is dependent
on the magnitude of the insulation fault present and the system voltage.
For example the locating current on the EDS3090 is limited to maximum 25 mA; with the setting
Imax = 10mA it is limited to 10 mA. During planning it is to be ensured that there are no system components in which this locating current could cause a reaction involving damage in unfavourable circumstances.
The locating current pulse flows from the locating current injector through the live conductors to the
insulation fault by the shortest route. From there it flows via the insulation fault and the earth cable
(PE cable) back to the locating current injector. This locating current pulse is detected by the measuring clamps or measuring current transformers in the insulation fault path and is indicated by the
insulation fault locator EDS195P connected.
You must ensure that all live conductors are routed through the measuring
clamp. Do not route any protective earth conductors or screens on
screened cables through the measuring clamp! Commercial measuring
clamps are not suitable for the EDS309… and must not be used.
Only if these notes are observed will you obtain a correct measurement result.
You will find additional information in our technical information Techinfo08
"Transformer installation".
EDS309x_D00012_04_M_XXEN/10.2015
15
System description
3.3.1
Schematic diagram EDS system
Un
IT-System
L1(L+)
L2(L-)
PSA...
3
1
2
EDS195P
PGH...
RF
PE
3.3.2
EDS195P
Insulation fault locator
PGH…
Locating current injector
Un
IT system voltage
PSA…
Measuring clamp
RF
Insulation fault
PE
Protective earth conductor
Test cycle
The locating current pulse cycle has a duration of 6 seconds. The PGH… sends alternating positive
and negative locating current pulses. The sketch below shows the test cycle of the PGH… with the
different switch settings (1, 2, 3) on the device, see schematic diagram above.
Position
PGH...
1
2 sec
3
4 sec
2
2 sec
3
1
4 sec
EDS Start
16
EDS309x_D00012_04_M_XXEN/10.2015
System description
3.3.3
IL
Definitions
= Locating current that flows through the locating current injector while the fault location
is running (EDS mode).
= Locating current measured by the insulation fault locator (EDS mode).
= Residual current produced by an insulation fault (RCM mode).
IΔL
IΔn
3.3.4
Currents in the EDS system
As an addition to the schematic diagram on page 16, here the path of the residual currents and the
locating current is shown:
Un
PSA...
IT-System
IΔn
IΔL
3
PGH...
1
EDS195P
2
CE-V
RF-V
CE-N
RF-N
IL
PE
.............
Locating current circuit due to the insulation fault RF-N
. .. .. ..
Residual currents IΔn (example)
IΔL
Locating current measured by the EDS195P
CE-V
Upstream capacitances, system leakage capacitances upstream of the
measuring current transformer
CE-N
Downstream capacitances, system leakage capacitance downstream of
the measuring current transformer
RF-V
Insulation fault upstream of measuring current transformer
RF-N
Insulation fault downstream of the measuring current transformer
The following residual currents flow through the measuring current transformer of the EDS195P:

The locating current caused by the insulation fault RF-N

The residual currents IΔn that flow through the system leakage capacitances CE-V and
CE-N, or that are caused by RF-V and RF-N

Transient leakage currents that are caused by switching and control activities in the system

Low-frequency leakage currents generated by the use of converters
EDS309x_D00012_04_M_XXEN/10.2015
17
System description
3.4 Operating principle for residual current measurement (IΔn)
In the RCM mode the EDS309… operates based on the principle of residual current measurement. In
this case only the insulation fault locator EDS195P and a measuring clamp are used, the locating current injector PGH18… is not required.
As per Kirchhoff's law the sum of the currents flowing into any node in a network is equal to the sum
of the currents flowing out.
I
I
I
I
EDS195P
n
I
L
ISOSCAN®
ALARM
I n
I L
ESC
HOLD
INFO
RESET
MENU
OK
Abb. 3.1: The two currents Izu and Iab have the same magnitude, however their signs are different,
such that the sum of the two currents is zero. The EDS195P detects this situation, there is no message.
I
I
I
I
EDS195P
n
I
L
ISOSCAN®
ALARM
I n
I L
ESC
HOLD
INFO
RESET
MENU
OK
Abb. 3.2: Part of the current flows through an insulation fault RF. The sum of the two currents
is no longer zero. As soon as the residual current reaches or exceeds the response value
there is an alarm message on the EDS195P.
In the RCM mode it is possible to measure residual currents in single and threephase TT or TN systems. If the system leakage capacitance ahead of the measuring clamp is sufficiently high, the EDS195P can also be used for measurements in
single and three-phase IT systems. The suitability of the device is to be checked in
the specific case.
18
EDS309x_D00012_04_M_XXEN/10.2015
4. Considerations prior to use
4.1 How does the equipment for insulation fault location work
The equipment comprises a locating current injector PGH18… and an insulation fault locator
EDS195P with measuring clamp PSA3… connected.
Functional sequence

Insulation fault location is started by activating the locating current injector PGH18…

The locating current injector PGH18… briefly connects the live conductors to earth with current limiting.

The insulation fault creates a closed circuit in which a locating current IL dependent on the system voltage flows. The locating current is limited to a maximum value of 25 mA or 10 mA
(PGH185/186), 2.5 mA or 1 mA (PGH183).

The locating current flows from the locating current injector via the live cables, the insulation
fault RF and the earth cable (PE cable) back to the locating current injector.

The locating current signal can be measured using measuring clamp placed around the cables
in the outgoing circuit from the distribution system and evaluated by the insulation fault locator EDS195P.

The location of the fault can be determined exactly by moving along the cable with the measuring clamp.
PSA...
PGH18...
EDS195P
IL
Abb. 4.1: EDS operating principle
EDS309x_D00012_04_M_XXEN/10.2015
19
Considerations prior to use
4.2 Requirements for reliable insulation fault location
The insulation fault locator has the task of locating the insulation fault RF-N downstream of the measuring clamp. For this purpose, it must reliably detect the locating current caused by the insulation
fault.
Requirements:

The insulation fault must be present for at least 30s

The locating current is in the following ranges:
– Main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3092PG,
EDS3096PG-13, EDS3096PV, EDS3096PG:
IL = 2…50 mA
– Control circuits with EDS3091, EDS3091PG, EDS3091PG-13, EDS3092PG::
IL = 0.2…5 mA

The upstream capacitances CE-V must be at least as large as the downstream capacitances CE-N.
See also chapter "3.3.4 "

The total system leakage capacitance must not exceed the maximum values in the characteristics in chapter "4.4 ".

The sum of the locating current and residual current flowing through the measuring clamp or
the measuring current transformer must not exceed the following values:

– Main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3092PG,
EDS3096PG-13, EDS3096PV, EDS3096PG:
maximum 10 A
– Control circuits with EDS3091, EDS3091PG, EDS3091PG-13, EDS3092PG:
maximum 1 A
There must be no connections to other outgoing circuits downstream of a measuring clamp or
measuring current transformer, see sketch.
I
EDS195P
n
I
L
ISOSCAN®
ALARM
I n
I L
ESC
HOLD
INFO
RESET
MENU
OK
Abb. 4.2: Connections between outgoing circuits will result in measuring errors

As well as the magnitude of the residual current, the frequency of the residual current also
affects the reliable detection of the locating current. Residual currents at frequencies other than
the system frequency may, e.g., be caused by the usage of frequency converters. The behaviour
of the EDS309… is described by the fault curve shown below:
– If the residual currents measured in main circuits exceed 10 A, the EDS195P outputs the
alarm message "IΔn >10 A".
This statement applies to the system frequencies 50/60/400 Hz for the EDS3090,
EDS3090PG, EDS3090PG-13, EDS3092PG, EDS3096PG-13, EDS3096PV and EDS3096PG.
– If the residual currents measured in control circuits exceed 1 A, the EDS195P outputs the
alarm message "IΔn >1 A".
This statement applies to the system frequencies 50/60/400 Hz for the EDS3091,
EDS3091PG, EDS3091PG-13 and EDS3092PG.
20
EDS309x_D00012_04_M_XXEN/10.2015
1
0,9
0,8
0,7
0,6
0,5
0,4
0,3
Permissible residual current [A] EDS3090..., EDS3096...
EDS3091...
Considerations prior to use
Frequency range Insulaon fault locaon EDS195P
10
9
8
7
6
Permissible
Frequency and
Residual current range
5
4
3
0,2
2
0,1
1
0
1
10
100
Frequency [Hz]
Abb. 4.3: Fault curve:
A residual current of 2 A at 10 Hz is outside the permitted
frequency range (red dot) ==> a valid measurement is not possible!
There must be no connections between outgoing circuits downstream of the
measuring clamp because such connections will produce interfering residual
currents. For example, the message "IΔn>10A" may be output as a consequence.
Symmetrical insulation faults downstream of the measuring current transformer will not be detected in certain circumstances. Low frequency residual currents
(e.g. caused by converters) can mean that insulation faults are not found if their
frequency is the same as or approximately the same as the frequency of the locating cycle of the PGH18….
Parallel cables routed to the same load are to be routed together through the
measuring clamp during the measurement.
EDS309x_D00012_04_M_XXEN/10.2015
21
Considerations prior to use
4.3 Reduced locating current
Particularly in DC control voltage systems in the power station and public utility sector there may be
relays or PLCs installed that switch at relatively low currents. In such a case the Imax switch on the
PGH18… must be placed in the 10 mA or 1 mA position. The switch's label, e.g. 10 mA or 25 mA, defines the magnitude of the locating current only for DC systems. For AC locating currents see
"chapter 4.4".
It must also be checked prior to a measurement with reduced locating current (switch position 10
mA or 1 mA) whether sensitive system components could be triggered unintentionally.
4.4 Response sensitivity characteristics of the EDS195P
The type of system, system voltage, system frequency, system leakage capacitance and locating current all affect the EDS system's response sensitivity. The magnitude of the locating current can be set
on the locating current injector PGH18…. A reduced locating current is produced in AC systems depending on the type of system. In comparison to DC systems the related factor in AC systems is 0.5
and in 3AC systems 0.67. For this reason set the response value on the EDS195P for usage in AC and
3AC systems as follows:
Settings
Main circuit
Control circuit
PV system
EDS3090
EDS3090PG
EDS3090PG-13
EDS3092PG
EDS3096PG
EDS3091
EDS3091PG
EDS3091PG-13
EDS3092PG
EDS3096PV
PSA3020, PSA3052,
PSA3165
Measuring range
2…50 mA
PSA3320, PSA3352
Measuring range
0,2…5 mA
PSA3052
Measuring range
2…50 mA
25 mA
(PGH185/186)
2,5 mA
(PGH183)
25 mA
(PGH186)
Response range EDS195P
Menu item 2.2: IΔL ALM
2…10 mA
0,2…1 mA
2…10 mA
PGH18… setting:
reduced locating current IL
10 mA
(PGH185/186)
1 mA
(PGH183)
10 mA
(PGH186)
2…5 mA
0,2…0,5 mA
2…5 mA
Equipment for
insulation fault location
EDS195P setting:
select the measuring clamp type
using button
PGH18… setting:
locating current IL
Response range EDS195P
with reduced locating current
Menu item 2.2: IΔL ALM
Tab. 4.1: Settings for the EDS195P and the PGH18…
For the response value setting see menu item “2. Settings/ 2. IΔL) on page 39. The response values
are given as characteristics that can have a maximum error of ±30 %. Measuring clamp tolerances are
included here. The characteristics apply at the related nominal voltage stated.
In case of variation in the nominal voltage, a proportional change in the response values is to be expected. In case of system voltages that change dynamically or in case of superimposed DC currents
and AC currents that vary from the system frequency (e.g. due to frequency converters), response
values outside the ranges shown may result.
22
EDS309x_D00012_04_M_XXEN/10.2015
Considerations prior to use
The characteristics below enable you to simply determine a practical response value for the
EDS195P. If the insulation monitoring device in a monitored system indicates an alarm message,
manual insulation fault location can be started. Proceed as follows:
1. Select the characteristics (3AC, AC, DC) that are appropriate for your type of system.
2. From these, select the diagram that best matches the desired system voltage.
3. Calculate the expected leakage capacitance Ce of the system monitored. Insulation monitoring
devices in the IRDH… series can indicate the magnitude of the leakage capacitance (press
INFO button). Apply this value to the diagram in the form of a vertical line.
If it is not possible to check the capacitance, the highest capacitance in the related diagram is
to be taken.
4. The characteristics shown indicate the response sensitivity of the EDS195P in main circuits for
2 mA, 5 mA and 10 mA and in control circuits for 0.2 mA, 0.5 mA and
1 mA. Values above the related curve cannot be measured. Values and characteristics that lie in
the area between the upper and lower characteristic can be estimated approximately using
the existing characteristics.
5. Set the required response value, on the left of the line from point 3., on the EDS195P.
6. The characteristics for DC 24 V and AC 42 V do not apply to the EDS3096, as the locating current generator operates with a locating voltage of DC 50 V. For this reason the curves for
DC 60 V and AC 110 V apply at these nominal voltages.
Response characteristics for main circuits in 3AC systems
3AC230V
160
2mA
140
5mA
120
RF [k]
RF [k]
4.4.1
10mA
100
60
60
40
40
20
20
50
100
0
150
Ce[uF]
0
20
40
60
80
Ce[uF]
3AC500V
3AC690V
2mA
140
5mA
120
10mA
100
80
RF[k]
RF [k]
0
160
250
2mA
5mA
200
10mA
150
100
60
40
50
20
0
2mA
5mA
10mA
100
80
80
0
3AC400V
120
0
10
20
30
EDS309x_D00012_04_M_XXEN/10.2015
40
50
60
Ce[uF]
0
0
10
20
30
40
50
Ce[uF]
23
Considerations prior to use
AC42V
5
0
0
50
100
150
200
250
300
Ce[uF]
2mA
5mA
10mA
30
20
10
0
50
RF [k]
4.4.3
100
RF [k]
AC230V
40
RF [k]
20
10
50
100
90
80
70
60
50
40
30
20
10
0
150
Ce[uF]
DC24V
2mA
5mA
10mA
8
4
10
2
5
100
200
300
400
0
500
Ce[uF]
DC110V
2mA
5mA
10mA
0
50
24
100
150
200
250
300
Ce[uF]
AC400V
2mA
5mA
10mA
0
20
40
60
80
100
Ce[uF]
100
150
200
250
300
Ce[uF]
DC60V
2mA
5mA
10mA
20
15
50
45
40
35
30
25
20
15
10
5
0
50
25
6
0
0
Response characteristics for main circuits in DC systems
10
0
2mA
5mA
10mA
25
15
60
0
AC110V
30
RF [k]
2mA
5mA
10mA
RF [k]
18
16
14
12
10
8
6
4
2
0
Response characteristics for main circuits in AC systems
RF [k]
RF [k]
RF [k]
4.4.2
100
90
80
70
60
50
40
30
20
10
0
0
50
100
150
200
250
300
Ce[uF]
DC230V
2mA
5mA
10mA
0
50
100
150
Ce[uF]
EDS309x_D00012_04_M_XXEN/10.2015
Considerations prior to use
Response characteristics for control circuits in AC systems
AC42V
120
RF [k]
RF [k]
4.4.4
0,2mA
0,5mA
1mA
100
80
AC110V
250
0,2mA
0,5mA
1mA
200
150
60
100
40
50
20
0
0
5
10
15
RF [k]
0
20
25
Ce[uF]
0
2
4
6
8
10
12
Ce[uF]
AC230V
600
0,2mA
0,5mA
1mA
500
400
300
200
100
0
2
4
DC24V
120
0,2mA
0,5mA
1mA
100
80
DC60V
250
0,2mA
0,5ma
1mA
200
50
20
0
10
20
30
40
50
0
60
Ce[uF]
DC110V
RF[k]
RF [k]
8
100
40
450
400
350
300
250
200
150
100
50
0
Ce[uF]
150
60
0
6
Response characteristics for control circuits in DC systems
RF[k]
RF [k]
4.4.5
0
0,2mA
0,5mA
1mA
0
2
4
EDS309x_D00012_04_M_XXEN/10.2015
6
8
Ce[uF]
10
1000
900
800
700
600
500
400
300
200
100
0
0
5
10
15
Ce[uF]
20
DC230V
0,2mA
0,5mA
1mA
0
1
2
3
4
5
6
Ce[uF]
25
Considerations prior to use
26
EDS309x_D00012_04_M_XXEN/10.2015
5. Connecting the locating current injector
CAUTION
Hazard due to excessively high locating voltage!
Check the information on the nameplate to ensure the devices to be connected
are suitable for the supplying system. The operation of the PGH18… and possibly the power supply unit with an incorrect supply voltage can cause irreparable
damage to the devices.
Prior to commissioning check whether all system components are correctly
connected together.
5.1 Disconnecting insulation monitoring device
During insulation fault location using the EDS309… an existing insulation monitoring device must
be disconnected from the system for the duration of the fault location if its internal resistance is
Ri < 120 kΩ. During this process the connection to the system must be interrupted on all poles, shutting down the supply voltage to the insulation monitoring device is insufficient. On the usage of
such a device with Ri ≥ 120 kΩ the effect is negligible, disconnection is not required in this case. However the PGH18… will affect the measurement made by the insulation monitoring device.
5.2 Locating current injector in an electrically isolated IT system
For insulation fault location in electrically isolated systems using the EDS3096PG, the integrated
voltage source G in the PGH186 supplies a locating voltage.
The locating voltage DC 50 V is provided by the PGH186 at the socket L1(+). Make sure that this socket is coupled to the system to be monitored during insulation fault location, only then will the integrated voltage source in the PGH186 be effective.
Note that the active conductors in the system to be checked must be coupled
together via loads or the electrically isolated power supply.
US = 0 V
IT-System
L1(L+)
L2(L-)
PSA...
+
L1
G
EDS195P
RF
3
1
PE
EDS309x_D00012_04_M_XXEN/10.2015
2
PGH186
27
Connecting the locating current injector
5.3 Connection to a live IT system
DANGER
DANGER
Risk of electric shock!
On touching live uninsulated conductors, death or serious injury may be caused.
For this reason prevent any physical contact with active conductors and follow
the rules for working on electrical systems.
Risk of electric shock!
If the PGH18… is connected using terminals L1, L2, L3 (or L1, L2) to a system that
is live due to its operation, the terminal must not be disconnected from the
protective earth conductor (PE). Otherwise the terminal will be at the dangerous
system voltage!
Connect the locating current injector PGH18… as follows:
I
EDS195P
n
I
L
ISOSCAN®
ALARM
F
IL
I n
I L
ESC
HOLD
INFO
RESET
MENU
OK
U
U
U
28
EDS309x_D00012_04_M_XXEN/10.2015
Connecting the locating current injector
5.4 Connection to a PV system
DANGER
DANGER
CAUTION
Risk of electric shock!
On touching live uninsulated conductors, death or serious injury may be caused.
For this reason prevent any physical contact with active conductors and follow
the rules for working on electrical systems.
Risk of electric shock!
If the PGH186 is connected using terminals L1(+) und L2(–) to a system that is live
due to its operation, the terminal must not be disconnected from the protective earth conductor (PE). Otherwise the terminal will be at the dangerous system
voltage!
Risk of short circuit!
When the EDS3090PV is connected with test leads without integrated fuses a
short circuit may occur due to incorrect wiring. Connect the EDS3090PV with the
accompanying test lead with integrated fuses to reduce the risk of a short circuit.
Connect the locating current injector PGH186 as follows:
Central inverter
IT system
Transformer
Junction Box
Strings
=
PSA30..
PSA30..
BNC
EDS
195P
BNC
EDS
195P
PGH186
PSA30..
Insulation
fault
PSA30..
EDSSET
L2(-)
BNC
L1(+)
EDS
195P
E
AGE185
PE
Legend:
PGH186
AGE185
EDS3096PV
EDS195P
PSA30..
EDS-SET
Locating current injector
Coupling device
Equipment for insulation fault location
Insulation fault locator
Measuring clamp (locating current sensor)
BNC Tee connector and 2 BNC cables for fault localisation in diode-decoupled systems
EDS309x_D00012_04_M_XXEN/10.2015
29
Connecting the locating current injector
For insulation fault location within the junction box, it is essential that the ± cables of a string are arranged in a way that the measuring clamp PSA30… can be put around the cables.
Insulation faults in the strings can be localised by means of two measuring clamps connected in parallel and an EDS-SET. For this purpose, place the measuring clamps on both sides of the module supply conductors in the direction indicated by the arrows.
30
EDS309x_D00012_04_M_XXEN/10.2015
6. Operation
6.1 Short description of insulation fault location (EDS mode)
DANGER
6.1.1
Risk of electric shock!
On touching live uninsulated conductors, death or serious injury may be caused.
For this reason avoid any contact whatsoever with active conductors on positioning the measuring clamp.
Commissioning the PGH18… for locating current injection
1. The PGH18… is to be connected first to PE in the system to be checked, see page 28
2. Then connect the PGH18… to the active conductors
3. Connect device to US and switch on
If the locating current IL is to be supplied by an IRDH575, select the EDS-Setup menu item on this device and set to EDS=On.
6.1.2
Insulation fault location using EDS195P
1. There must be no conductors in the measuring clamp and the measuring clamp must be stationary during commissioning
2. Switch on EDS195P without current transformer using the
button
3. Wait for the end of the self test and the message "No CT connected"
4. Set required current transformer type using the
button
5. Connect selected current transformer and wait for end of the self-test
6. Fit measuring clamp to PE conductor between PGH18… (IRDH575) and, for example, PE rail to
demonstrate that the necessary locating current IL is flowing.
7. Place measuring clamp around the associated active conductors for the related outgoing circuit. Caution! Do not include PE in the cables in the clamp!
8. Read measured value and evaluate.
If the response value set has been exceeded, the "ALARM" LED flashes.
6.2 Detailed description of insulation fault location

For information on using the EDS309… without a permanently installed EDS system, see
page 42

For information on using the EDS309… in addition to a permanently installed EDS system, see
page 45

For information on using the EDS309… in diode-decoupled DC systems, see page 49
6.3 Description of a residual current measurement
Using the EDS195P it is also possible to undertake residual current measurements up to a value of 10
A, see page 49.
EDS309x_D00012_04_M_XXEN/10.2015
31
Operation
6.4 Displays and controls on the PGH18…
1
1
Im
ax
2
ON
0m
M A
L1
L2
(-)
(+
)
3(N)AC 0...575V mit/with 500...790V
DC
0...504V AGE185 400...960V
L3
10
6
10
mA
25
7
mA
Us
ON
8
PGH186
3
5
32
4
1
ON/OFF switch, switch on or off locating current
2
Changeover switch for maximum locating current values: 25/10 mA or 2.5/1 mA
3
Not shown: magnetic strip on rear of housing for fastening to metal items (e.g. switch
cabinet)
4
3 sockets for coupling to system
5
Socket for PE connection
6
Indicator LEDs:
ON Operation LED
Indication of positive locating current cycle
Indication of negative locating current cycle
7
Fine-wire fuse 100 mA
8
Flush mounted connector for supply voltage
EDS309x_D00012_04_M_XXEN/10.2015
Operation
6.5 Displays and controls on the EDS195P
12
1
I
EDS195P
EDS195P
ISOSCAN®
L
I
n
2
EDS195P
Bender GmbH&CoKG
D-35305 Grünberg
3
ALARM
11
10
9
IΔs
ALARM
IΔn
ESC
I L
I n HOLD
INFO
ESC
HOLD
RESET
INFO
MENU
OK
RESET
MENU
8
4
5
6
7
1
BNC connection for measuring clamp
2
LC display, illuminated
3 lines of 16 characters
3
ALARM LED:
- Flashes if the response value is exceeded
- Illuminates continuously on rectification of the fault, if the fault memory is
activated
4
Button for selecting the current transformer:
- PSA30xx
= PSA30… / PSA3165
(suitable for ILmax = 50 mA)
- W/WR/WS
= W…. / WR…. / WS….
(suitable for ILmax = 50 mA)
- PSA33xx
= PSA33…
(suitable for ILmax = 5 mA)
- W/WS-8000 = W….-8000 / WS….-8000 (suitable for ILmax = 5 mA)
- WF
= WF….
(only suitable for IΔn)
5
INFO button:
- Device type, date, time, manufacturer
- Software version
- Actual response values IΔL and IΔn
- Status word (setup status)
ESC button:
Leave a menu function without changing parameters
6
ESC
INFO
OK
MENU
EDS309x_D00012_04_M_XXEN/10.2015
MENU button:
Open the menu
Enter button:
Accept modified parameter values or selected menu items
33
Operation
7
On/Off button
8
Button for switching on/off the display lighting
9
RESET
RESET button: delete fault memory
Down button: move down in the menu, reduce parameter values
10
HOLD
HOLD button: save the measured value
Up button: move up in the menu, increase parameter values
11
12
I
I
Button for selecting the operating mode:
IΔL = Insulation fault location in IT systems (EDS mode)
IΔn = Residual current measurement in TN-S systems (RCM mode)
Micro USB connection for charging the device's rechargeable battery
6.6 Operating the EDS195P
6.6.1
Switching on and off the device
1. Switch on the device without current transformer using On/Off button.
The self-test is started after switching on.
If the self-test is completed normally "No CT connected" appears.
2. You can switch off the device by pressing the On-Off button for around 2 s.
EDS195P
BENDER GmbH&CoKG
D-35305 Grünberg
>>>Self test<<<
CT in rest pos.!
>> >> >> >>
No CT connected
M
PSA30xx
Abb. 6.1: Start sequence for the EDS195P
34
EDS309x_D00012_04_M_XXEN/10.2015
Operation
6.6.2
Changing the measuring clamp
Two methods can be used to change the measuring clamp.

Changing with EDS195P switched off:
– Disconnect clamp no longer required
– Switch on EDS195P
– Wait for "No CT connected" message
– Set required clamp type
– Connect related clamp
– Wait for end of self-test.

Changing with the EDS195P in operation:
– Disconnect clamp from the device
– Wait for "No CT connected" message
– Set required clamp type
– Connect related clamp
– Wait for end of self-test.
6.6.3
Improved legibility due to display lighting
Press the
button at the bottom left to improve the legibility of text and symbols.
Switch off the lighting by pressing the button again.
6.6.4
Changing between insulation fault location IΔL and
residual current measurement IΔn operating modes
Here you can select the measuring function. IΔn for residual current measurement preferably in
TN/TT systems. IΔL for insulation fault location in IT systems.
Avoid changing the mode during insulation fault location.
6.6.5
Quickly checking the response values for IΔL and IΔn
Press the INFO button three times to display the actual response values.
6.6.6
Checking Info menu
The following information appears on the display in succession on pressing the INFO button:

Device name, time, date and manufacturer

Software version with date

Actual response values IΔL and IΔn

Status information, coded, see page 58
EDS309x_D00012_04_M_XXEN/10.2015
35
Operation
6.6.7
Significance of the display elements
The elements shown relate to the EDS mode (IΔL). This mode is used for insulation fault location.
8
1
I L = 8mA
Resp. = 5mA
7
PSA30xx
M H
6
5
4
2
3
1
Indication of the locating current pulse:
= Positive pulse,
= Pause or no measurement possible when permanently displayed
= Negative pulse
29 = Timer (29…0) shows the duration of a measurement of an outgoing
circuit
2
Indication of the selected transformer type:
- PSA30xx
= PSA30… / PSA3165
- W/WR/WS
= W…. / WR…. / WS….
- PSA33xx
= PSA33…
- W/WS-8000 = W….-8000 / WS….-8000
- WF
= WF….
3
H = Hold function is activated; measured value indication "frozen"
4
M = Fault memory is activated
5
Loudspeaker symbol visible:
The presence of an alarm is also output audibly
6
Charge state of the rechargeable battery in the steps 0%, 33%, 66%,100%
7
Resp. = Response value IΔL
8
IΔL = Indication of the actual locating current measured
(suitable for ILmax = 50 mA)
(suitable for ILmax = 50 mA)
(suitable for ILmax = 5 mA)
(suitable for ILmax = 5 mA)
(only suitable for IΔn)
6.7 Standard displays on the EDS195P
6.7.1
EDS measurement (IΔL)
6.7.1.1 Standard display if there is no cable to be measured in the clamp
The device is in the EDS mode (IΔL).
A measured locating current IΔL is not indicated, as there is no conductor in the measuring clamp.
The display shows the timer count (29…0).
I L = mA
Anspr. = 5mA
M
36
29
PSA30xx
EDS309x_D00012_04_M_XXEN/10.2015
Operation
6.7.1.2 Standard display for EDS measurement (IΔL) with cable in the clamp
The display is indicating a measured fault current IΔL of 3 mA. A measurement in progress is indicated
by the change in the polarity of the measuring pulse (
) with a pause (- - -) in between.
I L = mA
Anspr. = 5mA
I L = 3mA
Resp. = 5mA
PSA30xx
M
M
PSA30xx
Note that only half the magnitude of the locating current IL generated by the PGH18… in AC systems
is indicated by EDS195P. The half-wave rectification used in the PGH18… reduces the value indicated in AC systems to 50 %, in 3AC systems to 67 %.
6.7.1.3
Standard display for measuring faults or pauses between changes in polarity of the
measuring pulse
When no measurement is possible due to low frequency residual currents or because the measuring
clamp is not being held still, the display permanently indicates a pause (- - -) at the top right corner.
During the evaluation of the measurement the display indicates a pause (- - -) for a short time only.
I L = mA
Anspr. = 5mA
PSA30xx
M
6.7.2
RCM measurement (IΔn)
6.7.2.1 Standard display for RCM measurement (IΔn) with cable in the clamp
The display is indicating the measured residual current IΔn of 16 mA.
The residual current response value set is 100 mA.
I n = 16mA
Resp. = 100mA
M
PSA30xx
The following display appears if menu item "2.Settings/7.Harmonics: on" is activated. This setting can
only be used for 50 Hz or 60 Hz systems.
For the 1st harmonic (fundamental) the display is indicating a measured current of 10 mA as well as
a total harmonic distortion THD of 39 %.
I n = 16mA
H1 = 10mA
M
THD = 39%
PSA30xx
6.8 Alarms during EDS measurement or RCM measurement
If one of the response values set IΔL or IΔn is exceeded, the ALARM LED flashes. If the fault memory M
is activated, the ALARM LED continues to illuminate after the removal of the fault.
The alarm saved is cleared using the RESET button.
I L = 8mA
Resp. = 5mA
M
EDS309x_D00012_04_M_XXEN/10.2015
Alarm during insulation fault
location (EDS):
LED flashes
ALARM
Alarm during a residual current
measurement (RCM):
LED flashes
PSA30xx
I n = 1.6A
Resp. = 100mA
M
ALARM
PSA30xx
37
Operation
6.9 Indication of device and measuring errors
The following table explains the error messages that may occur.
Self test error
PRESS ->RESET
PSA30xx
M
No CT connected
PSA30xx
M
I L = mA
Anspr. = 5mA
M
PSA30xx
Error IΔL
M
PSA30xx
Can only occur after the end of the self-test:
- Incorrect current transformer type set
- During the self-test the clamp was:
Not stationary
Or a residual current was flowing through it
Or the PGH locating current was flowing through it
- EDS195P hardware faulty
Press the "RESET" button to restart a self test.
No measuring clamp or no measuring current transformer on
the measuring input or incorrect transformer type connected
Measures:
Connect correct measuring clamp or correct measuring current
transformer
A permanent display of pause (- - -) indicates no measurement is
possible.
Steps:
- Hold the measuring clamp still
- Avoid low frequency residual currents
A malfunction has occurred during insulation fault location
Possible causes:
- The measuring clamp was not held still.
- There is a low frequency residual current flowing through the
measuring clamp that is interfering with the EDS measurement
- There a magnetic field around the measuring clamp that is
interfering with the EDS measurement
- EDS195P hardware faulty
If the EDS195 can no longer detect the locating current due to system interference and an existing alarm is therefore cleared, an insulation fault will be detected again at the end of the interference.
6.10 Factory settings EDS195P (state as supplied)
Most of the settings are made on the menu. If this is not the case, the setting is marked with
(button).
Operating mode (button):
Current transformer (button):
Illumination (button):
Fault memory:
Buzzer:
Response value IΔL with PSA30…:
Response value IΔL with PSA33…:
Response value IΔn:
System frequency IΔn:
Measurement of harmonics IΔn:
User interface language:
Time:
38
IΔL (EDS mode = insulation fault location)
Measuring clamp PSA3052 (for EDS3090 and 3096)
Measuring clamp PSA3352 (for EDS3091)
Off
On
On
5 mA
0.5 mA
100 mA
50 Hz
Off
English
CET
EDS309x_D00012_04_M_XXEN/10.2015
Operation
6.11 Menu structure
The menu structure is shown schematically in the following.
Level 1
Level 2
Level 3 or explanation
1. Exit
2. Settings
3. System
1. Exit
2. IΔL ALM: 0.2…10 mA
3. IΔn ALM: 10 mA…10 A
4. Memory: on/off
5. Buzzer: on/off
6. Frequ.: 50/60Hz/up to 1kHz
7. Harmonics: on/off
1. Exit
2. Format: D.M.Y
3. Date
4. Time
4. Contrast: 0…15
Contrast setting for display
1. Exit
2. H1 < 10 mA
3. H2 < 10 mA
.....
9. H8 < 10 mA
5. IΔL alarms
1. Exit
This menu item is used only for the indication
of harmonics from H1 to H8. To display the
harmonic with the greatest amplitude in the
standard display with the menu closed, the
menu item "7. Harmonics: on/off" on the Settings menu is to be activated
2. Entries
Alarm No. 001
No. 002
No. ......
3. Delete
1. Exit
2. Delete Data
1. Exit
2. Entries
EDS309x_D00012_04_M_XXEN/10.2015
1. Exit
2. German
3. English
4. French
5. Russian
3. Clock
4. Harmonics
7. Service
Audible alarm
Frequency of the system monitored
Indication of harmonics and total harmonic
distortion THD in %
1. Exit
2. Language
6. IΔn logger
Response value measured locating current IΔL
Response value residual current IΔn
Entry No. 001
No. 002
No. ......
3. Change: 10…100 %
Percentage change from which logging
becomes active
4. Overwrite: yes/no
Overwrite oldest data record
5. Delete
1. Exit
2. Delete Data
For service only
39
Operation
6.11.1 Navigating in the menu
- Open the menu using MENU
- Select a menu item
or accept a value using OK
MENU
- Navigate up or down in the menu
- Increase or reduce values
HOLD
OK
ESC:
- Return from the last menu item selected
- Discard modified setting without saving
RESET
ESC
INFO
6.11.2 Menu item: Settings
Using this menu item you can access the following parameters for the insulation fault location and
for the residual current measurement to:

Set the response value for the locating current IΔL measured with the measuring clamp to
between 0.2…10 mA.
This value range is equally suitable for control circuits (0.2…1 mA) and main circuits (2…10 mA).
On the usage of the locating current injector note that the permissible locating current defined
for control circuits is ILmax = 5 mA, while for main circuits it is ILmax = 50 mA.

Set the response value for the residual current IΔn measured with the measuring clamp to
between 10 mA and
10 A

Activate or deactivate the fault memory

Activate or deactivate audible signalling of alarms

Set the frequency of the system monitored

Enable the indication of the harmonics to display the current for the harmonic with the greatest
amplitude in the standard display. All harmonics from H1 to H8 can be checked using menu
item "4. Harmonics", see also page 41. Note that with harmonics activated only system frequencies of 50 Hz and 60 Hz can be selected.
Level 1
Level 2
2. Settings
1. Exit
2. IΔL ALM: 0.2…10 mA
3. IΔn ALM: 10 mA…10 A
4. Memory: on/off
5. Buzzer: on/off
6. Frequ.: 50/60Hz/up to 1kHz
7. Harmonics: on/off
Meaning
Response value measured locating current IΔL
Response value residual current IΔn
Audible alarm
Frequency of the system monitored
Indication or harmonics and total harmonic distortion THD
Alarms are signalled by the Alarm LED and the buzzer (delivery condition).
40
EDS309x_D00012_04_M_XXEN/10.2015
Operation
6.11.3 Menu item: System
Use this menu item to select the language for the user interface and to set the correct date and time.
The date format can be changed.
You can adjust the quality of the display by adjusting the contrast.
Level 1
Level 2
3. System
1. Exit
Level 3 or explanation
1. Exit
2. German
3. English
4. French
5. Russian
2. Language
3. Clock
1. Exit
2. Format: D.M.Y
3. Date
4. Time
4. Contrast: 0…15
Contrast setting for display
6.11.4 Menu item: Harmonics
This menu item is used only for the indication of harmonics from H1 to H8.
Level 1
Level 2
Meaning
4. Harmonics
1. Exit
2. H1 < 10 mA
3. H2 < 10 mA
.....
9. H8 < 10 mA
This menu item is used only for the indication of harmonics from H1 to H8. To display the harmonics, activate the menu item
"2.Setting/7. Harmonics: on/off"
6.11.5 Menu item: IΔL alarms
Using this menu item you can check the alarms recorded automatically during insulation fault location. The data records are numbered and contain the following information:

The start of the alarm

The end of the alarm

The minimum locating current IΔL measured

The maximum locating current IΔL measured
A maximum of 300 data records are saved.
The existing data records can be deleted using the menu.
Level 1
Level 2
5. IΔL alarms
1. Exit
2. Entries
Level 3
Meaning
Alarm No. 001
Period for the recording and min./
max. values measured for IΔL
No. 002
No. ......
3. Delete
EDS309x_D00012_04_M_XXEN/10.2015
1. Exit
2. Data delete
41
Operation
6.11.6 Menu item: IΔn logger
Using this menu item you can check the measured values recorded automatically during a residual
current measurement. The data records are numbered and contain the following information:

The start time for the measurement and the change in the residual current monitored

The residual current IΔn measured
A maximum of 300 data records are saved.
The existing data records can be deleted using the menu.
Level 1
Level 2
6. IΔn logger
1. Exit
2. Entries
Level 3
Meaning
Entry No. 001
No. 002
No. ......
Time of the recording and
residual current IΔn measured
3. Change:
10…100 %
Percentage change from which logging becomes active
4. Overwrite:
yes/no
Overwrite oldest data record
5. Delete
1. Exit
2. Data delete
6.12 Practical usage
6.12.1 Insulation fault location in a system without a permanently installed EDS system
DANGER
Risk of electric shock!
On touching live uninsulated conductors, death or serious injury may be caused.
For this reason avoid any contact whatsoever with active conductors on connecting the PGH and positioning the measuring clamp.
The EDS309… is primarily used as a portable insulation fault location system in unearthed IT systems. Once all the instructions in chapter “Considerations prior to use” on page 19 have been followed, insulation fault location can be started. Proceed as follows during this process:
1. Check whether the system voltage is within the permissible limits.
The permissible voltages are stated in the user interface on the PGH18….
2. Connect the locating current injector PGH18… close to the feed, see connection diagram on
page 28. During this process follow the general guidelines for working with electrically live systems!
– First connect the PE socket on the PGH18… to the system's PE using the green-yellow wire.
– Then connect the PGH18… to the system to be checked using the connection wires provided.
42
Three-phase system
Connect sockets L1, L2 and L3 to the system
Single-phase AC or DC
Connect sockets L1 and L2 to the system
EDS309x_D00012_04_M_XXEN/10.2015
Operation
3. Connect the PGH18… to a suitable power supply using the power cable supplied (see nameplate).
4. If there is an insulation monitoring device with an Ohmic internal resistance < 120 kΩ in the IT
system to be checked, disconnect it from the system to be checked on all poles. It is not sufficient to switch off the power supply to the insulation monitoring device.
5. Set the maximum locating current using the Imax switch on the PGH18…. Follow the instructions in chapter “Reduced locating current” on page 22.
6. Switch on the PGH18…. The "ON" LED illuminates and the two "
" and "
" LEDs flash
alternately in synchronism with the test cycle. If there is no activity indicated on the LEDs, check
the supply voltage and the fine-wire fuse that can be accessed from the front panel.
7. Switch on the EDS195P without a current transformer connected by pressing the
button.
The device undertakes a self-test and outputs the error message "No CT connected" because a
current transformer is not connected.
8. Now select the type of measuring clamp or measuring current transformer to be connected
using the
button. The device undertakes a further self-test and outputs the error message
"No CT connected" because a current transformer is not connected
9. Then connect the pre-selected measuring clamp or the pre-selected measuring current transformer to the EDS195P. The device undertakes a further self-test and is then in the EDS mode.
"IΔL" appears in the first line of the display.
10. On handling the measuring clamp note:
– Do not bring measuring clamp into contact with system voltages above the rated insulation
voltage (see nameplate on the measuring clamp with information on measuring category,
e.g. CAT III)
– Always keep contact surfaces on measuring clamp's iron core clean.
– Do not use measuring clamp in the immediate vicinity of devices that produce magnetic
fields such as transformers or chokes and also not near adjacent conductors carrying high
currents.
– Never disconnect measuring clamp from the EDS195P while it is placed around electrically
live conductors. Otherwise the measuring clamp may be irreparably damaged!
– Aim for the best possible symmetry of the conductors in the measuring clamp. Otherwise
the measuring clamp may go into saturation due to an excessively high load current and
cause an alarm IΔn >10 A.
– Keep the measuring clamp still during the measurement!
– During the measurement do not apply any pressure to the clamp limb.
11. Cover the green and yellow lead between PHG18… and earth with the measuring clamp. A
measurement process should take no more than 30 seconds. When the EDS195P is ready to
take a measurement, the countdown (29…0) at the top right corner of the display starts. If the
time has expired and no error has been found, the countdown starts again. During a measurement, the EDS195P shows recognized test current signals with pauses in between:
i.e.
--.
In the case of a measurement fault, the display permanently indicates pause (- - -).
There are 3 reasons for this:
– The insulation fault resistance is too high and cannot be measured by the EDS195P.
– The measuring clamp is not being held still. Hold the clamp still during measurement.
– Low frequency residual currents or magnetic fields in the environment have been superimposed on the test current pulse. Avoid these disturbances.
EDS309x_D00012_04_M_XXEN/10.2015
43
Operation
12. Start the insulation fault location from the main distribution area of the IT system. Place the
measuring clamp around all system conductors, but not the PE conductor. During each measurement wait one test cycle (approx. 30 seconds). A flashing alarm LED on the EDS195P signals
an insulation fault after (from the point of view of the locating current injector) the measuring
clamp. It recommended to have the buzzer activated during the search.
13. Now measure along the cable using the EDS195P until the fault is found. During this process
move into sub-distribution systems using a star-shaped approach. The location of the fault is
found when the locating current in the measuring clamp generated by the PGH18… exceeds
as a minimum the response value set on EDS195P.
Possible error messages

Self test error:
– Incorrect current transformer type set
– EDS195P hardware faulty
– Clamp moved while the indication ">>>Self test<<<" was displayed
– An interfering residual current is flowing through the clamp
– There is a PGH locating pulse acting on the clamp

No CT connected:
Measuring clamp or measuring current transformer not connected or faulty.

Error IΔL (can only be indicated while a measurement is in progress):
– Low frequency interference, measurement not possible
– EDS195P hardware faulty

IΔn >10 A / >1 A:
There is a residual current > 10 A or >1 A flowing through the measuring clamp. In this case it is
not possible to locate the insulation fault on the related outgoing circuit. Residual currents of
this magnitude in an IT system can be caused by large system leakage capacitances or multiple
insulation faults. It is therefore possible that there is an insulation fault on this outgoing circuit
also with this alarm message.
At operating currents < 10 A a measurement can also be made by placing the
clamp around only one conductor. At currents > 10 A it may no longer be possible to open the measuring clamp. This risk is particularly apparent in DC systems.
If this effect occurs, under no circumstances apply force; this action would irreparably damage the measuring clamp. Instead the related system must be shut
down. It will then be possible to open the measuring clamp without the need to
apply force.
44
EDS309x_D00012_04_M_XXEN/10.2015
Operation
6.12.2 Insulation fault location in a system with a permanently installed EDS system
The EDS195P can also be used in a permanently installed EDS system (EDS460/490 or EDS461/491).
In a large, complex IT system the main outgoing circuits are often monitored by the permanently installed EDS system. Once the main outgoing circuit affected by an insulation fault is detected, the
search is continued from there using the portable EDS195P.
During this process the EDS195P uses the locating current pulse from the permanently installed EDS
system (IRDH575, PGH47…). The PGH18… is not required for this application.
The PGH18… is not included in the items supplied with the EDS3090 and EDS3091. Insulation fault
location is therefore only possible in electrically live IT systems. Also follow the operating instructions for the permanently installed EDS system.
DANGER
Risk of electric shock!
On touching live uninsulated conductors, death or serious injury may be caused.
For this reason avoid any contact whatsoever with active conductors on positioning the measuring clamp.
Example: The insulation monitoring device has signalled an insulation fault below its response value
and started the permanently installed EDS system. The main outgoing circuit affected by the insulation fault has been detected. Proceed as follows for the further insulation fault location:
1. Set the mode of the EDS system to continuous insulation fault location:
– IRDH575: On the "EDS Setup" menu set the "EDS on" mode
– PGH471: Press "Start/Stop" button
2. Switch on the EDS195P without a current transformer connected by pressing the
button.
The device undertakes a self-test and outputs the error message "No CT connected" because a
current transformer is not connected.
3. Now select the type of measuring clamp or measuring current transformer to be connected
using the
button. The device undertakes a further self-test and outputs the error message
"No CT connected" because a current transformer is not connected
4. Then connect the pre-selected measuring clamp or the pre-selected measuring current transformer to the EDS195P. The device undertakes a further self-test and is then in the EDS mode.
"IΔL" appears in the first line of the display.
5. On handling measuring clamps note:
– Do not bring measuring clamp into contact with system voltages above the nominal insulation voltage. (See nameplate on the measuring clamp with information on measuring category, e.g. CAT III)
– Always keep contact surfaces on measuring clamp's iron core clean.
– Do not use measuring clamp in the immediate vicinity of devices that produce magnetic fields
such as transformers or chokes and also not near adjacent conductors carrying high currents.
– Never disconnect measuring clamp from the EDS195P while it is placed around electrically
live conductors. Otherwise the measuring clamp may be irreparably damaged!
– Aim for the best possible symmetry of the conductors in the measuring clamp.
Otherwise the measuring clamp may go into saturation due to an excessively high load current and cause an alarm IΔn >10 A.
– Keep the measuring clamp still during the measurement!
– During the measurement do not apply any pressure to the clamp limb.
6. Place the measuring clamp around the green-yellow wire between the IRDH575 or PGH47…
and earth. If the EDS195P does not react, the insulation fault has an excessively high impedance
and cannot be detected. Locating current pulses detected are indicated using the symbol.
EDS309x_D00012_04_M_XXEN/10.2015
45
Operation
7. Start the insulation fault location in the outgoing circuit of the IT system already detected as
faulty. Place the measuring clamp around all system conductors, but not the PE conductor.
During each measurement wait one test cycle (approx. 30 seconds). A flashing alarm LED on the
EDS195P signals an insulation fault after (from the point of view of the locating current injector)
the measuring clamp. It recommended to have the buzzer activated during the search.
8. Now measure along the cable using the EDS195P until the insulation fault is found. During this
process move into sub-distribution systems using a star-shaped approach. The location of the
fault is found when the locating current generated by the IRDH575 or PGH47… in the measuring clamp exceeds as a minimum the response value set on EDS195P.
Possible error messages

Self test error:
– Incorrect current transformer type set
– EDS195P hardware faulty
– Clamp moved while the indication ">>>Self test<<<" was displayed
– An interfering residual current is flowing through the clamp
– There is a PGH locating pulse acting on the clamp

No CT connected:
Measuring clamp or measuring current transformer not connected or faulty.

Error IΔL (can only be indicated while a measurement is in progress):
– Low frequency interference, measurement not possible
– EDS195P hardware faulty

IΔn >10 A / >1 A:
There is a residual current > 10 A or > 1 A flowing through the measuring clamp. In this case it is
not possible to locate the insulation fault on the related outgoing circuit. Residual currents of
this magnitude in an IT system can be caused by large system leakage capacitances or multiple
insulation faults. It is therefore possible that there is an insulation fault on this outgoing circuit
also with this alarm message.
At operating currents < 10 A a measurement can also be made by placing the
clamp around only one conductor. At currents > 10 A it may no longer be possible to open the measuring clamp. This risk is particularly apparent in DC systems.
If this effect occurs, under no circumstances apply force; this action would irreparably damage the measuring clamp. Instead the related system must be shut
down. It will then be possible to open the measuring clamp without the need to
apply force.
46
EDS309x_D00012_04_M_XXEN/10.2015
Operation
6.12.3 Insulation fault location in diode-decoupled DC systems
In diode-decoupled DC systems equalising currents occur in and between the decoupled circuits.
The direction and magnitude of these equalising currents is dependent on voltages in the system,
the characteristics of the decoupling diodes and the characteristics of the loads.
On the usage of the insulation fault location system EDS309… in such systems these equalising currents make themselves apparent and can degrade the accuracy of the measurement. For this reason
we recommend the usage of the EDS309… in diode-decoupled systems as shown in the sketch on
the next page.
DANGER
Risk of electric shock!
On touching live uninsulated conductors, death or serious injury may be caused.
For this reason avoid any contact whatsoever with active conductors on connecting the PGH and positioning the measuring clamp.
During this process please note:

Always use two measuring clamps of the same type.
Attention: this clamp type must also be set on the EDS195P.

For this purpose use the EDS195P set (see ordering data, page 59).

Take into account the maximum length of the coax cable of 10 m per measuring clamp.

The usage of two measuring clamps results in a sensitivity loss of around 10 %.

It is imperative both measuring clamps are used such that the direction of the flow of energy
corresponds to the arrow printed on the clamp.
Example: The central insulation monitoring device in a DC system without permanently installed insulation fault location system (EDS) has signalled an insulation fault that is below the insulation value
that can be located using the EDS system. Once all the instructions from chapter "4. Considerations
prior to use" have been followed, fault location in a modified form can be started. Proceed as follows
during this process:
1. Read the actual insulation resistance on the insulation monitoring device. If the value read for
the insulation resistance is lower than the maximum insulation fault that can be located by the
EDS system, two appropriate identical measuring clamps (e.g. 2 x PSA3020 or
2 x PSA3052) are required for the insulation fault location.
2. Switch on the EDS195P without a current transformer by pressing the
button. The device
undertakes a self-test and outputs the error message "No CT connected".
3. Now select the type of measuring clamp(s) to be connected using the
button. The device
undertakes a further self-test and outputs the error message "No CT connected" because a current transformer is not connected
4. Then connect the pre-selected measuring clamp(s) to the EDS195P. The device undertakes a
further self-test and is then in the EDS mode. "IΔL" appears in the first line of the display
5. Connect the PGH18… to the locating current injection points are shown on page 48.
6. Start the EDS system:
Switch on the PGH18…. The "ON" LED illuminates and the two and LEDs flash in synchronism
with the test cycle. If there is no activity indicated on the LEDs, check the supply voltage and
the fine-wire fuse fitted in the PGH18….
7. Insulation fault location in the system:
– Place a measuring clamp around each of the supply cables to the redundantly supplied
loads. During this process ensure that the clamp is placed around all related load supply
cables for a diode-decoupled load.
EDS309x_D00012_04_M_XXEN/10.2015
47
Operation
– Pay attention to identical directions of flow on the two measuring clamps (see connection
diagram). For this purpose the measuring clamps are marked with an arrow
Place the two measuring clamps successively and systematically around all parallel outgoing cables
for loads. Outgoing cables for loads with an insulation fault are indicated by the flashing alarm LED
on the EDS195P. The alarm messages are output in the same way as for an application with a single
measuring clamp. For possible error messages see page 44.
PE
DC main distribution (DC 20-360 V)
Central coupling
of the insulation monitoring device (IMD)
and the locating current injector PGH185
L+
LSelector switch
EDS/IMD
S1
Us AC 230 V
PGH185
Im
25
Us
mA
ax
ON
L+ L-
(-)
L2
L1
(+
05
AC/DC
PGH186
n
I
L
l max.
= 10
m
30
A
S
P
M
D ES
D aten SZ
A urch bl AN
rt.at G
N mes t / E
r. se D / C
/A
at LA
rt.- r / as M
no Dia heet P
.: m : O
B eter T N P
G R
98
0 : 52 H13 O
6x
xx B
x mm E
30
A
S
P
M
D ES
D aten SZ
A urch bl AN
rt.at G
N mes t / E
r. se D / C
/A
at LA
rt.- r / as M
no Dia heet P
.: m : O
B eter T N P
G R
98
0 : 52 H13 O
B
xx
m xx E
m
I
EDS195P
ISOSCAN®
52
l max. =
52
A3
20
10 m
PS
0
2/3
L3
)
10
0m
A
ON
10
mA
IMD
ALARM
EDS195P
I n
I L
ESC
HOLD
INFO
RESET
MENU
PSA3052/3020
OK
L+
DC sub distribution
L-
n
I
PS
L
52
/30
20
Insulation fault
P
Load
M
D ES
D aten SZ
Ar urch bl AN
t.- m att G
N es / E
r. se D / C
/ Ar
at LA
t.- r / D ashe M
no ia et P
.: m : O
B eter TG N PR
98
0 : 52 H13 O
BE
xx
x mmxx
S
A
30
52
I
EDS195P
ISOSCAN®
0
A3
ALARM
I n
I L
ESC
HOLD
INFO
RESET
MENU
EDS195P
Load
OK
Abb. 6.2: Insulation fault location in diode-decoupled DC systems (connection diagram)
48
EDS309x_D00012_04_M_XXEN/10.2015
Operation
6.12.4 Usage of the EDS195P as a residual current meter
The EDS195P can be used as a residual current meter up to AC 10 A in TN and TT systems. Residual
current measurement is only possible in electrically live systems. The locating current
injector PGH18… is not required for this application.
1. Check whether the system voltage is within the permissible limits.
2. Switch on the EDS195P without a current transformer connected by pressing the
button.
The device undertakes a self-test and outputs the error message "No CT connected" because a
current transformer is not connected.
3. Now select the type of measuring clamp or measuring current transformer to be connected
using the
button. The device undertakes a further self-test and outputs the error message
"No CT connected" because a current transformer is not connected
4. Then connect the pre-selected measuring clamp or the pre-selected measuring current transformer to the EDS195P. The device undertakes a further self-test and is then in the EDS mode.
"IΔL" appears in the first line of the display.
5. Make the following settings:
– Change to the IΔn (RCM mode) function using the related button
– Set residual current response value using the menu path "2. Settings /3. IΔn ALM:"
6. On handling measuring clamps note:
– Do not bring measuring clamp into contact with system voltages above the nominal insulation voltage. (See nameplate on the measuring clamp)
– During the measurement place the clamp around all system conductors, but not PE. Do not
place the clamp around screened conductors.
– Always keep contact surfaces on measuring clamp's iron core clean.
– Do not use measuring clamp in the immediate vicinity of devices that produce magnetic
fields such as transformers or chokes and also not near adjacent conductors carrying high
currents.
– Never disconnect measuring clamp from the EDS195P while it is placed around electrically
live conductors. Otherwise the measuring clamp may be irreparably damaged!
– Aim for the best possible symmetry of the conductors in the measuring clamp.
Otherwise the measuring clamp may go into saturation due to an excessively high load current and cause an alarm IΔn >10A.
– Keep the measuring clamp still or let go of it during the measurement!
– During the measurement do not apply any pressure to the clamp limb.
7. Start the measurement from the main distribution area of the system. Now measure along the
cable using the EDS195P until the insulation fault is found. During this process move into subdistribution systems using a star-shaped approach.
8. EDS195P indicates the residual current at each measuring point. If the residual current is
greater than the response value set, the "ALARM" LED illuminates and the measured value is
displayed. If the buzzer is activated, there is also an audible signal.
9. For long-term measurements at a point in the system, the fault memory is to be activated in
the menu 2.4 (Settings/Memory). In this way it is also possible to find intermittent residual currents provided they are above the response value set. The highest residual current measured is
saved.
EDS309x_D00012_04_M_XXEN/10.2015
49
Operation
Possible error messages

Self test error:
– Incorrect current transformer type set
– EDS195P hardware faulty
– Clamp moved while the indication ">>>Self test<<<" was displayed
– An interfering residual current is flowing through the clamp
– There is a PGH locating pulse acting on the clamp

No CT connected:
Measuring clamp or measuring current transformer not connected or faulty.

Error IΔL (can only be indicated while a measurement is in progress):
– Low frequency interference, measurement not possible
– EDS195P hardware faulty

IΔn >10 A / > 1 A:
There is a residual current > 10 A or >1A flowing through the measuring clamp. In this case it is
not possible to locate the insulation fault on the related outgoing circuit. Residual currents of
this magnitude in an IT system can be caused by large system leakage capacitances or multiple
insulation faults. It is therefore possible that there is an insulation fault on this outgoing circuit
also with this alarm message
6.12.5 Indication of the harmonics during residual current measurement
Using the EDS195P it is also possible to measure harmonics of the fundamental frequencies of 50 or
60 Hz.
1. Switch on the EDS195P by pressing the
button.
The device is in the EDS mode. IΔL appears in the first line of the display
2. Check correct setting for the selection of the clamp or current transformer on the display, correct if necessary
3. Now select the measurement type IΔn (RCM mode) using the
I
I
button
4. Then make the following settings:
– Check response value on menu 2.3 (Settings IΔn) and change if necessary
– Check system frequency on menu 2.6 (Settings IΔn) and change if necessary
– Activate measurement of the harmonics on menu 2.7 (Settings /Harmonics)
– Select the required harmonics on menu 4.
The EDS195P indicates the harmonics of a residual current at each measuring point. If the residual
current is greater than the response value set, the "ALARM" LED flashes and the measured value is
displayed. If the buzzer is activated, there is also an audible signal.
After the activation of the harmonics in menu 2.7, the harmonic with the greatest amplitude and the
total harmonic distortion in % can be seen in the standard display with the menu closed.
50
EDS309x_D00012_04_M_XXEN/10.2015
Operation
6.13 Coupling device AGE185 for higher system voltages
This option is available for the variants EDS3090PG, EDS3090PG-13 and EDS3096PG with the locating current injectors PGH185 and PGH186. The coupling device AGE185 expands the nominal voltage range of the insulation fault location system EDS309…
The AGE185 reduces the losses in the locating current injector PGH18… As a result it makes it possible to connect the PGH18… to nominal system voltages up to AC 790 V or DC 960 V.
DANGER
Risk of electric shock!
On touching live uninsulated conductors, death or serious injury may be caused.
For this reason avoid any contact whatsoever with active conductors on connecting the PGH or the AGE.
Assembly, connection and placing in operation
Connection and placing in operation only by an electrical technician!
It is imperative the existing safety regulations are followed!
The ends of the wires from the AGE185 can be connected, as necessary and to suit the local situation,
to the system's PE terminal and the PE socket on the PGH186; it is not necessary to take into account
the polarity.
Connection diagram
IT System
PE
Us
Im
10
ON
I
EDS195P
n
I
L
ISOSCAN®
ME
Da SSZA
ten NG
Du bla E /
rch tt
CL
Art me / Datas
AM
.-N sse
he P ON
r. /
Art r / Dia et :
.-no. me TG PROB
: B ter : H13xx E
980 52
6xx mm
PS
A305
2
PGH186
To the loads
L3
)
(+
L2
L1
AC/DC
(-)
10
0m
A
mA
25
Us
mA
ax
ON
PGH186
ALARM
I n
I L
ESC
HOLD
INFO
RESET
MENU
OK
AGE185
EDS195P
Abb. 6.3: Connection diagram EDS309… with AGE185
EDS309x_D00012_04_M_XXEN/10.2015
51
Operation
6.14 Power supply for the EDS195P

The device is supplied with power using 3 NiMH cells of 1.2 V each
or 3 mignon cells of type LR6 AA of 1.5 V each.

The power supply unit is not allowed to be connected with non-rechargeable batteries
fitted!

On the connection of a power supply unit, there must be 3 correctly functioning rechargeable
batteries in the battery compartment.

Rechargeable battery charging time ≤ 5 h.
6.14.1 Displaying charge state
The display can indicate 4 different charge states:
100 %, 66 %, 33 % and a flashing empty battery symbol.
I L = 8mA
Resp. = 5mA
M H
PSA30xx
6.14.2 Changing batteries
The battery compartment is on the rear of the EDS195P. The settings in the EDS195P are retained on
changing the batteries.
1. Undo 2 screws in the cover on the rear, remove cover.
2. Remove old batteries.
3. Fit new batteries in the battery compartment with correct polarity as indicated by the markings.
4. Close cover.
6.14.3 Power supply unit supplied
CAUTION
Risk of incorrect triggering due to wrong measuring values!
Power supply unit influences the measuring accuracy of EDS195P.
Therefore, do not connect the power supply unit during measurements.
A power supply unit with a USB connector and USB cable is included in the items supplied.
The primary purpose of the power supply unit supplied is to charge the rechargeable batteries in the
EDS195P. See the display on the EDS195P for the charge state of the rechargeable batteries.
52
EDS309x_D00012_04_M_XXEN/10.2015
7. Technical specifications
7.1 Technical specifications for the system EDS309…
The technical specifications stated in this section apply to the
components PGH18…, EDS195P, AGE185.
Environment/EMC
EMC................................................................................................................................................................................................................ IEC 61326-2-4
Operating temperature ................................................................................................................................................................................ -10…+ 55 °C
Climatic classes acc. to IEC 60721:
Stationary use (IEC 60721-3-3) .................................................................................................................................3K5 (without condensation or icing)
Transport (IEC 60721-3-2) .........................................................................................................................................2K3 (without condensation or icing)
Long-term storage (IEC 60721-3-1) .........................................................................................................................1K4 (without condensation or icing)
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) .....................................................................................................................................................................................3M4
Transport (IEC 60721-3-2) .............................................................................................................................................................................................2M2
Long-term storage (IEC 60721-3-1) .............................................................................................................................................................................1M3
Other
Operating mode .......................................................................................................................................................................................... Continuous duty
Position in normal use......................................................................................................................................................................................................Any
Weight EDS309… ................................................................................................................................................................................................ ≤ 7000 g
Weight EDS309… with PSA3165 ....................................................................................................................................................................... ≤ 8500 g
Weight EDS3092 ................................................................................................................................................................................................... ≤ 9000 g
Dimensions, case W x H x D ................................................................................................................................................................ 430 x 340 x 155 mm
7.2 Technical specifications PGH18…
Insulation coordination according to IEC 60664-1/IEC 60664-3
Rated voltage .......................................................................................................................................................................................................... 500 V AC
Rated surge voltage / degree of pollution ................................................................................................................................................................. 4 kV/3
Nominal system voltage Un
PGH183.........................................................................................................................................................AC 42…460 Hz 20…265 V, DC 20…308 V
PGH185................................................................................................................................................ 3AC/AC 42…460 Hz 20…575 V, DC 20…504 V
PGH186.................................................................................................................................................... 3AC/AC 42…460 Hz 0…575 V, DC 0…504 V
Supply voltage
Supply voltage US ................................................................................................................................................................................AC 50…60 Hz 230 V
Operating range of US ................................................................................................................................................................................ 0.85…1.15 x US
Supply voltage US version -13 ................................................................................................................................................. AC 50…60 Hz 90…132 V
PGH 183, PGH 185:
Power consumption ................................................................................................................................................................................................. ≤ 3 VA
PGH 186:
Power consumption ................................................................................................................................................................................................. ≤ 6 VA
EDS309x_D00012_04_M_XXEN/10.2015
53
Technical specifications
Locating current
PGH183:
Locating current max., can be selected..................................................................................................................................................................1/2.5 mA
PGH185/186:
Locating current max., can be selected.................................................................................................................................................................10/25 mA
PGH183/185/186
Test cycle ............................................................................................................................................................................................................................ 2 s
Pause duration ................................................................................................................................................................................................................... 4 s
Locating voltage
PGH186.......................................................................................................................................................................................................................DC 50 V
Other
Degree of protection of built-in components DIN EN 60529 (VDE 0470-1) ................................................................................................................ IP40
Enclosure material.................................................................................................................................................................................................ABS plastic
Flammability class....................................................................................................................................................................................................UL94V-0
Weight...................................................................................................................................................................................................................... ≤ 700 g
Dimensions ............................................................................................................................................................................................ 160 x 148 x 81 mm
7.3 Technical specifications EDS195P
( )* = Factory settings
Insulation coordination according to IEC 60664-1/IEC 60664-3
Rated voltage .................................................................................................................................................................................................................. 50 V
Rated surge voltage/degree of pollution ................................................................................................................................................................ 0.8 kV/3
Supply voltage
Power supply US .................................................................................................................... Rechargeable batteries, batteries or USB power supply unit
Rechargeable batteries......................................................................................................................................................................3 x NiMH ≥ 2000 mAh
Operating time (without display lighting).............................................................................................................................................................. ≥ 150 h
Charging time .............................................................................................................................................................................................................. ≤ 5 h
Size................................................................................................................................................................................................................................ AA R6
Batteries....................................................................................................................................................................................................3 x LR6 AA – 1.5 V
USB power supply unit:
Primary ....................................................................................................................................................................................... 100…240 V, 50…60 Hz
Secondary .................................................................................................................................................................................................... DC 5 V, ± 10 %
Power consumption................................................................................................................................................................................................. ≤ 0.5 W
Measuring circuit, insulation fault location
Nominal system voltage .............................................................................................. With uninsulated conductors with measuring clamp up to 600 V
Rated frequency ....................................................................................................................................................................................... DC, 42…2000 Hz
Main circuit (ILmax = 50 mA):
Measuring range ................................................................................................................................................................................................. 2…50 mA
Measuring clamps................................................................................................................................................................. PSA3020, PSA3052, PSA3165
Response sensitivity IΔL adjustable.................................................................................................................................................... 2… 10 mA (5 mA)*
Operating uncertainty ............................................................................................................................................ ±30 % / ±2 mA of the nominal value
Control circuit: (ILmax = 5 mA)
Measuring range ................................................................................................................................................................................................ 0.2…5 mA
Measuring clamps.................................................................................................................................................................................. PSA3320, PSA3352
Response sensitivity IΔL adjustable ............................................................................................................................................. 0.2…1.0 mA (0.5 mA)*
Operating uncertainty 0.2…0.9 mA................................................................................................................. ±30 % / ± 0.2 mA of the nominal value
Operating uncertainty 1…5 mA .......................................................................................................................... ±30 % / ± 2 mA of the nominal value
54
EDS309x_D00012_04_M_XXEN/10.2015
Technical specifications
Measuring circuit, residual current
With measuring clamps........................................................................................................................................................ PSA3020, PSA3052, PSA3165
Measuring range ........................................................................................................................................................... 5 mA…10 A (crest factor up to 3)
Response sensitivity IΔn adjustable........................................................................................................................................... 10 mA…10 A (100 mA)*
Measuring clamps ................................................................................................................................................................................. PSA3320, PSA3352
Measuring range ............................................................................................................................................................. 2 mA…2 A (crest factor up to 3)
Response sensitivity IΔn adjustable............................................................................................................................................... 5 mA…1 A (100 mA)*
Frequency range............................................................................................................................................................................................. 42…1000 Hz
Operating uncertainty, 42…60 Hz ........................................................................................................................................................................... ±5 %
Operating uncertainty, 61…1000 Hz ..................................................................................................................................................................... ±20 %
Hysteresis....................................................................................................................................................................................................................... 20 %
Harmonics, indication can be disabled................................................................................................................................................. 1st to 8th harmonic
Inputs
Connection for measuring clamp........................................................................................................................................................................ BNC socket
Connection for power supply unit (DC 5 V) ..................................................................................................................................................... μUSB socket
Display
LCD...............................................................................................................................................................3 x 16 characters, illumination can be enabled
LED ............................................................................................................................................................................................................................... Alarm
Other
Degree of protection of built-in components DIN EN 60529 (VDE 0470-1) ................................................................................................................ IP40
Protective class according to IEC 60947-1, DIN EN 60947-1 (VDE 0660-100)....................................................................................................... Class III
Enclosure material............................................................................................................................................................................................... ABS plastic
Flammability class................................................................................................................................................................................................... UL94V-0
Weight ...................................................................................................................................................................................................................... ≤ 350 g
Software version .................................................................................................................................................................................................. D399 V2.0
Dimensions WxHxD.................................................................................................................................................................................. 84 x 197 x 30 mm
7.4 Technical specifications measuring clamps
Electrical safety
Standard .................................................................................................................................................................................................... IEC 61010-2-030
Degree of pollution.............................................................................................................................................................................................................. 2
System class......................................................................................................................................................................................................................... III
Operating voltage......................................................................................................................................................................................................... 600 V
Nominal insulation voltage ........................................................................................................................................ AC 600 V CAT III or AC 300 V CAT IV
Transformer ratio
PSA30… ........................................................................................................................................................................................................... 10 A/10 mA
PSA33… ............................................................................................................................................................................................................ 1 A/0.1 mA
PSA3165 ........................................................................................................................................................................................................... 10 A/10 mA
Other
Degree of protection of built-in components DIN EN 60529 (VDE 0470-1) ............................................................................................................... IP40
Protective class according to IEC 60947-1, DIN EN 60947-1 (VDE 0660-100)....................................................................................................... Class III
Measurement output ................................................................................................................................................................................... BNC connector
Dimensions PSA3052 / 3352 ................................................................................................................................................................ 216 x 111 x 45 mm
Dimensions PSA3020 / 3320 .................................................................................................................................................................. 135 x 65 x 30 mm
Dimensions PSA3165 ............................................................................................................................................................................ 285 x 179 x 45 mm
Permissible cable diameter PSA3052 / 3352 ........................................................................................................................................................... 52 mm
Permissible cable diameter PSA3020 / 3320 ........................................................................................................................................................... 20 mm
Permissible cable diameter PSA3165 .................................................................................................................................................................... 115 mm
Weight PSA3052 / 3352 ......................................................................................................................................................................................... ≤ 700 g
Weight PSA3020 / 3320 ......................................................................................................................................................................................... ≤ 300 g
Weight PSA3165 ................................................................................................................................................................................................... ≤ 1300 g
EDS309x_D00012_04_M_XXEN/10.2015
55
Technical specifications
7.5 Technical specifications AGE185
Insulation co-ordination according to IEC 60664-1
Rated insulation voltage ...................................................................................................................................................................................... AC 1000 V
Rated impulse voltage/degree of pollution ............................................................................................................................................................... 4 kV/3
Nominal system voltage Un .......................................................................................................... 3AC/AC 42…460 Hz, 500…790 V, DC 400…960 V
Other
Degree of protection of built-in components DIN EN 60529 (VDE 0470-1) ................................................................................................................ IP30
Connection type/wire: ................................................................................... Safety laboratory connectors with green-yellow connection wire 1 mm2
Weight ..................................................................................................................................................................................................................... ≤ 200 g
Dimensions WxHxD: ............................................................................................................................................................................... 88.5 x 42 x 21 mm
7.6 Standards and certifications
Observe the applicable national and international standards. The series EDS309…
complies with the standards:

DIN VDE 0100-410 (VDE 0100-410)
Low-voltage electrical installations – Part 4-41:
Protection for safety – Protection against electric shock (IEC 60364-4-41, modified);
German version HD 60364-4-41

DIN EN 61557-9
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. –
Equipment for testing, measuring or monitoring of protective measures - Part 9:
Equipment for insulation fault location in IT systems (IEC 61557-9);
German version EN 61557-9

DIN EN 61010-1; VDE 0411-1
Safety requirements for electrical equipment for measurement, control and laboratory use –
Part 1: General requirements (IEC 61010-1);
German version EN 61010-1
56
EDS309x_D00012_04_M_XXEN/10.2015
Technical specifications
7.7 Dimension diagrams
All dimensions are given in mm.
Aluminium case
155
145
340
310
430
AGE185
88.5
ca. 450
21
42
ca. 1950
EDS309x_D00012_04_M_XXEN/10.2015
57
Technical specifications
7.8 Status word
The status word can be checked by pressing the "INFO" button several times. This word contains the
current configuration and provides an error code if there is a device error.
CT type
p -> PSA30xx
P -> PSA33xx
w -> W/WR/WS
W -> W/WR-8000
F -> WF...
Idn ALM [mA]
L of the CT [H]
Idn
Data logger
Change [%]
LCD contrast
0500010000EE N010P0024001609ABCD
Rcu of the CT [Ohm]
IdL ALM [µA]
Idn
Data logger
Overwrite
J -> Yes
N -> No
Error Code:
Output in
hex format,
binary coded
Buzzer:
E -> on
A -> off
Fault memory
E -> on
A -> off
58
EDS309x_D00012_04_M_XXEN/10.2015
EDS195P
EDS195P
EDS195P
EDS3091PG
EDS3091PG-13
EDS309x_D00012_04_M_XXEN/10.2015
EDS3092PG
%
%
B91082025
B91082029
$
B91082007
'&9IRUH[WHUQDOVXSSO\RIWKH('63YLD—86%FRQQHFWRU
BNC T-piece and 2 BNC cables for fault location in diode-decoupled systems
A167054
%
Adapter cable for operating a WF current transformer on the EDS195P
B91082045
AC 42...460 Hz, 500...790 V,
B980305
%
DC 400...960 V
%
$&+]9
%
B980852
'&9
AC 42...460 Hz, 0...575 V
und DC 0...504 V
XQG'&9
B91082030
AC 42...460 Hz, 20...575 V %
$&+]9
und DC 20...504 V
%
AC
42...460 Hz, 20...265 V
$&+]9
XQG'&9
und
DC 20...308 V
AC 42...460 Hz, 20...265 V
B91082023
und DC 20...308 V
$&+]9
B91082024
XQG'&9
und DC 20...504 V
%
$&+]9 B91082022
%
XQG'&9
B91082027
%
B91082021
Art.-No.
Art.-No.
%
$&+]9
%
XQG'&9
B91082026
AC 42...460 Hz, 20...575 V %
Nominal voltage
Nominal voltage
%1&7HHFRQQHFWRUDQG%1&FDEOHVIRUIDXOWORFDWLRQLQGLRGHGHFRXSOHGV\VWHPV
Coupling device for increasing the voltage range of the PGH185/186
$GDSWHUFDEOHIRURSHUDWLQJD:)FXUUHQWWUDQVIRUPHURQWKH('63
Measuring clamp 115 mm for EDS3090... and EDS3096...
supply with USB DC 5 V for external supply of the EDS195P via µUSB connector
connector
$GDSWHUFDEOH
AGE185
%1&36
('66(7
Adapter cable
BNC-PS2
3OXJSRZHU
VXSSO\ZLWK86%
EDS-SET
FRQQHFWRU
Plug power
PSA3165
$&+]9
AC 50...60 Hz, 230 V
AC 50...60 Hz, 230 V
$&+]9
AC 50...60 Hz, 90…132 V
Optional Accessories
&RXSOLQJGHYLFHIRULQFUHDVLQJWKHYROWDJHUDQJHRIWKH3*+
PGH186-13
36$
PSA3352
PSA3352
36$
PSA3352
$&+]9
$&+]«9
AC 50...60 Hz, 230 V
AC 50...60 Hz, 90…132 V
36$
36$
$&+]9
PSA3020
PSA3052 AC 50...60 Hz, 230 V
36$
36$
$&+]«9
±
[36$
PSA3020
PSA3052 $&+]9
AC 50...60 Hz, 230 V
Optional
Accessories
PSA3020
PSA3052
AC 50...60 Hz, 90…132 V
36$
PSA3320
3*+
PGH183
3*+
PGH185
3*+
3*+
PGH186
PSA3320
36$
PSA3320
$*(
EDS195P
PSA3052
36$
PSA3052
36$
PSA3352
36$
0HDVXULQJFODPSPPIRU('6DQG('6
EDS3096PG-13
PSA3020
36$
PSA3020
36$
PSA3320
36$
PGH183
3*+
PGH183-13
3*+
3*+
PGH185
PGH185-13
Supply voltage
/RFDWLQJFXUUHQW
0HDVXULQJ
0HDVXULQJ
Items supplied
Supply voltage
FODPSVPP FODPSVPP
LQMHFWRU
Locating current
Measuring
Measuring
36$
36$
clamps 20 mm clamps 52 mm
injector
3*+
36$
36$
$&+]9
PSA3020
PSA3052
3*+
36$
36$
$&+]«9
Items supplied
36$
('63
('63
('63
EDS195P
('63
('63*
('63*
('639
EDS3096PG
('63*
EDS195P
('63
EDS195P
('63
EDS195P
('63
('6
EDS3090PG-13
('63*
EDS3091
('63*
EDS3090PG
('63
EDS195P
('63
Insulation
fault
('63
locator
,QVXODWLRQIDXOW
ORFDWRU
('6
('63*
EDS3090
('63*
Type
Type
Technical specifications
7.9 Ordering data including accessories
59
Technical specifications
60
PSA3052
PSA3052
1
1
3
3
1
1
3
3
1
1
PGH186
PGH186-13
1
1
1
1
1
1
1
1
EDS195P
EDS195P
2
6
2
6
2
PGH183
PGH185
1
1
1
1
1
1
1
1
1
1
1
1
PGH183
PGH183-13
3
3
1
1
3
3
1
1
AGE185
AGE185
PSA3020
PSA3020
PSA3352
PSA3052
PSA3320
PSA3020
PSA3320
PSA3320
PSA3320
PSA3352
PSA3352
PSA3352
PSA3165
PSA3165
1
1
1
1
1
1
PSA3165
PSA3165
PSA3165
PSA3052
PSA3052
PSA3052
PSA3020
PSA3020
PSA3020
AGE185
AGE185
1
1
3
3
1
1
Aluminium case with carrying handle
1
1
1
1
1
1
1
1
1
Device type
EDS3090
EDS3090PG
EDS3090PG-13
EDS3091
EDS3091PG
EDS3091PG-13
EDS3092PG
EDS3096PG
EDS3096PG-13
Operating manual
1
1
Insulation fault locator
EDS195P
Clamping connector on 4 mm
1
Adapter BNC/4mm connector for curr. transform.
1
1
1
Adapter BNC-PS2 for WF-CT, optional
1
1
1
Plug power supply for EDS195P
EDS195P
EDS195P
EDS195P
Locating current injector
1
1
1
Supply cable for PGH18...
3
3
Safety measuring cable, black
1
1
Safety measuring cable, green/yellow
PGH185
PGH185-13
Safety claw grip, black
1
1
1
Safety claw grip, green/yellow
1
1
1
Coupling device, optional
(EDS3096PV only: in the scope of delivery)
1
1
1
PGH18... with accessories for
EDS195P with Accessories
Components EDS309...
Measuring clamps 20 mm
1
1
1
Measuring clamps 52 mm
EDS195P
EDS195P
EDS195P
Measuring clamps 115 mm, optional
1
1
1
Measuring clamps
EDS-Set, optional
1
1
1
7.10 Component list
EDS309x_D00012_04_M_XXEN/10.2015
8. Frequently Asked Questions

The ISOMETER® indicates an insulation fault but this fault cannot be located using the
EDS309…. What could cause this problem?
– Individual outgoing circuits in the IT system monitored may be earthed. Check all outgoing
circuits for unintentional earthing.
The N conductor for the transformer that supplies the IT system must also not be earthed.
– There may not be any locating current flowing. Check the earth connection on the locating
current injector PGH18…, IRDH575 for correct connection.
– The PE conductor may have been unintentionally included in the cables in the measuring
clamp or the measuring current transformer.

EDS195P displays the error message "No CT connected". What could cause this problem?
– A measuring clamp is not connected or it is faulty.
– A measuring clamp or a measuring current transformer of the incorrect type has been connected to the EDS195P, see table on page 33.

In case of residual current measurement (IΔn) the harmonic H… does not appear in the standard display. What could cause this problem?
– The menu item "2. Settings/ 7. Harmonics:" is not activated.
EDS309x_D00012_04_M_XXEN/10.2015
61
Frequently Asked Questions
62
EDS309x_D00012_04_M_XXEN/10.2015
INDEX
A
E
Accessories
- optional 13
AGE185 51
Alarm is also output audibly 36, 39
Alarm LED 33
Alarms during EDS measurement or RCM
measurement 37
EDS mode 14
EDS195P
- controls 33
B
F
Factory settings 38
Fault circuit 15
Fault memory M is activated 36
Frequently Asked Questions 61
Buttons on the EDS195P 33
H
C
Cables
- screened 15
Characteristics, response sensitivity 23
Charge state of the rechargeable battery
36
Checking Info menu 35
Checking the actual response values 33,
35
Checking the device type 33
Checking the software version 33
Clamp change 35
Clamp selection button 33, 36
Component list 60
Connecting the locating current injector
42
Connection for external power supply unit
34
Connection to an IT system 28, 29
Coupling device AGE185 51
HOLD button 34
Hold function activated 36
I
Indication of the locating current pulse 36
INFO button 58
Insulation fault location
- in a system without a permanently
installed EDS system 42
- in diode-decoupled DC systems 47
- with permanently installed EDS system 45
Insulation fault locator 14
Intended use 9
N
Navigating in the menu on the EDS195P
40
O
Opening the menu 33
Operating mode button 34
Operating principle 15
Operating the EDS195P 34
Ordering data 59
Outline drawings 57
P
Permanently installed EDS system 31
PGH18...
- controls 32
PLC 22
Power supply for the EDS195P 52
Practical usage 42
Q
Quick check on the response values 35
L
R
Leakage currents 17
Locating current 15
Locating current limiting 22
RCM mode
- function 18
Rechargeable batteries 54
Rechargeable battery
- changing 52
Reduced locating current 22
RESET button 34
Residual currents
- path 17
Response characteristics for control circuits
25
Response characteristics for main circuits
23
D
M
Deleting fault memory 34
Device and measuring errors 38
Device-specific safety instructions 9
Diode-decoupled DC system 31, 47
Disconnecting insulation monitoring device 27
Display lighting 34
Displaying harmonics 37
Down button 34
Malfunction 38
Measuring clamps
- handling 43
Measuring current transformers
- commercially available 13
Measuring harmonics 50
Measuring residual current 14, 49
Menu item
- Harmonics 41
- IΔL alarms 41
- IΔn logger 42
EDS309x_D00012_04_M_XXEN/10.2015
- Settings 40
- System 41
Menu structure 39
S
Saving the measured value using HOLD 34
63
INDEX
Selecting the current transformer 33
Selecting the operating mode 34
Setting language 39
Settings 40
Significance of the display elements 36
Standard display for EDS measurement 37
Standard displays on the EDS195P 36
Standards 56
Status word 58
Switch on-off 34
System components 11
Systems
- electrically isolated 27
T
Technical specifications
- AGE185 56
- EDS195P 54
- measuring clamps 55
- PGH18... 53
Test cycle 16
Type list EDS309... 12
U
Up button 34
USB power supply unit 54
64
EDS309x_D00012_04_M_XXEN/10.2015
Bender GmbH & Co. KG
Londorfer Str. 65 • 35305 Grünberg • Germany
Postfach 1161 • 35301 Grünberg • Germany
Tel.: +49 6401 807-0
Fax: +49 6401 807-259
E-Mail: info@bender.de
Web: http://www.bender.de
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