VIP30_35EN

VIP30_35EN
0
0
User
manual
0
0
2004
0
Electrical network protection
VIP30 / VIP35
YFJYVIIVGIT
6FKQHLGHU(OHFWULF
)55(9$
Contents
Functions and characteristics
Presentation of VIP30 and VIP35 relays
2
Presentation of CRc and CEc sensors
3
Description of VIP30 and VIP35 relays
4
Presentation of the VAP6 test unit
6
Using the VAP6 test unit
7
Technical characteristics
8
Installation and connection
Mounting
10
Connection
12
1
Functions and
characteristics
Presentation of VIP30 and VIP35
relays
DE50894
Self-powered protection relays
Simplified wiring diagram.
VIP30 and VIP35 relays are designed for use in power distribution systems, mainly
in MV/LV substations where they provide protection upstream from the transformer.
They are self-powered relays (supplied by current sensors) requiring no auxiliary
power supply.
They actuate a Mitop release.
The VIP30 provides protection against phase-to-phase faults.
The VIP30 WED has the same characteristics as the VIP30. The only difference
concerns the markings on the setting label.
The VIP30 WED settings depend on the power rating.
The VIP35 provides protection against phase-to-phase and earth faults.
Phase protection
DE10326
Phase protection uses an IDMT set point equal to 1.2 times the current setting (Is).
The VIP30 and VIP35 phase protection functions are the same.
VIP30 and VIP35 phase protection.
Earth fault protection
DE50896
Earth fault protection is based on residual current measurements using the sum of
the sensor secondary currents. Measurements are carried out by a CSH30 core
balance CT mounted on the back of the VIP35 unit. Earth fault protection operates
according to definite time characteristics; the set point and time delay are adjustable.
VIP35 earth fault protection.
Equipment description
The VIP30 and VIP35 relays are mounted in an injected polycarbonate casing that
protects them against dripping water and dusty environments.
The front is protected by a transparent cover fitted with a sealing gasket.
The cover may be lead-sealed to protect access to the settings.
Rotary selector switches are used for settings. The phase and earth fault current
settings are made directly in amperes. This means that the graduations on the front
must be adapted to suit the sensor range used. This is done by fitting the appropriate
setting label when mounting the relay.
The connection is made on the back of the relay using fast-on type connectors.
2
Presentation of CRc and CEc
sensors
Functions and
characteristics
To obtain the indicated performance characteristics, VIP30 and VIP35 relays must
be used with the specified sensors. The relay/sensor assemblies are defined to
respect the technical characteristics indicated, in particular:
operation over the entire range
tripping time
accuracy
short-circuit thermal withstand.
The same type of sensor must be used on each phase.
DE50902
CRc and CEc sensors for VIP30/VIP35:
CRc 200/500/1 sensors are used on RM6 units (models since 1998).
CEc 200/500/1 sensors are used on 24 kV Evolis integrated circuit breakers.
CRc and CEc sensors have two secondary windings.
The wiring of the sensor secondary windings determines the VIP30/VIP35 current
setting range.
Ratio
Wiring
8A - 80 A
Current setting range
200 / 1
S1 - S2
20A - 200A
500 / 1
S1 - S3
The cross-section of the core and the resistance of the winding are chosen so as to
protect the VIP30/VIP35 in the event of a high fault current and/or a short-circuit on
the MV system.
3
Description of VIP30 and VIP35
relays
Functions and
characteristics
DE50897
a
VIP30 front panel.
DE50899
VIP30/VIP35 phase protection
1: phase protection zone
Information concerning phase protection is presented in the dark zone at the top of
the front panel. This zone is the same for the VIP30 and VIP35.
2: current setting Is
Time-delayed tripping of the phase protection takes place at 1.2 x Is.
Depending on how the sensors are wired, the current setting is adjustable from
8A to 80A or from 20A to 200A; the selector switch graduations are adapted to the
range by fitting the appropriate setting label.
Other VIP30/VIP35 functions
a: setting label
The setting label should be fitted on the VIP30/VIP35 when it is mounted on the
circuit breaker. The label indicates the graduations of the phase current setting
(VIP30/VIP35) and earth protection setting (VIP35) selector switches. It is inserted,
from the top, behind the transparent part of the front panel.
How to fit the setting label.
b: sensors used and wiring
The text is printed on the setting label. It indicates the secondary winding of the CRc
or CEc sensors used to give the desired setting range.
When the label is in position in the slot, the text is hidden by a non-transparent zone.
It is not visible to the user.
DE50917
c: VAP6 test plug
The test plug is exclusively designed for connection of the VAP6, used for fast and
easy relay testing.
The test may be carried out during normal operation of the installation since the
VAP6 and VIP30/VIP35 provide the possibility of testing without circuit breaker
tripping.
The test is possible even if the relay is not supplied by the sensors. In that case, the
VAP6 supplies the VIP30/VIP35.
Testing the VIP30/VIP35 with the VAP6.
4
d: minimum time delay switch
The circular opening on the front face provides access to a switch used to delay the
tripping order by at least 25 ms. The time delay may be enabled to prevent the circuit
breaker from breaking at the beginning of the asymmetrical phase in the event of a
high fault.
It should be enabled or disabled depending on the type of circuit breaker. The user
does not have access to the time delay switch since the opening is hidden by the
setting label.
Description of VIP30 and VIP35
relays
DE50901
Functions and
characteristics
VIP35 front panel.
VIP35 earth protection
4: earth protection zone
This zone contains the earth protection settings.
5: earth protection setting
The setting is made directly in MV amperes.
6: earth protection time delay
The earth protection time delay is set in seconds.
When the circuit breaker closes, energizing of the MV/LV
transformer may generate aperiodic inrush currents with a DC
component that momentarily saturates the magnetic cores of
the VIP35 sensors.
Consequently, each sensor gives an erroneous result and the
sum of the phase currents (at the sensor secondary windings)
is no longer zero. This gives rise to a false earth fault detection
and can cause unnecessary tripping of the earth protection.
This is especially critical for low earth protection current and
time-delay settings.
If the earth protection time-delay setting is below the value
indicated in the table below for the current setting used, the
inrush current delay time delay should be enabled.
Io> setting
to> time delay
0.8 to 0.9 x Ia
0.2 s
0.6 to 0.8 x Ia
0.3 s
0.4 to 0.6 x Ia
0.4 s
0.2 to 0.4 x Ia
0.5 s
7: inrush current delay
This selector switch is used to enable the inrush current delay (1s). The time delay
prevents the earth protection from tripping when the VIP35 is energized upon circuit
breaker closing. The time delay only applies to the earth protection and has no effect
on tripping by the phase protection.
In "off" position, the inrush current delay is disabled. The earth protection operates
according to the delay set on the selector switch (6).
In "on" position, the inrush current delay is enabled.
In this case:
when the VIP35 is energized, and the circuit breaker is closed, tripping by the earth
protection is delayed by 1 second
when the VIP35 has been supplied for more than a second, the earth protection is
delayed according to the setting (6).
Ia: rated current of the transformer to be protected.
5
Functions and
characteristics
Presentation of the VAP6 test unit
DE50916
The VAP6 is a portable unit that can be connected to the VIP30/35 to carry out
simplified testing.
The test can be carried out in the following two cases:
the VIP30/VIP35 is already supplied by the sensors
the VIP30/VIP35 is not supplied; in this case the VAP6 batteries supply power to
the relay.
The test consists of:
injecting a stimulus to simulate a phase fault
injecting a stimulus to simulate an earth fault (VIP35)
checking tripping (refer to the description of the test in the section entitled "test
sequence").
The VAP6 is supplied by batteries. Therefore the parts of the VIP30/VIP35 that
require AC current are not checked using this method (input and supply circuits).
Push-buttons
Battery test: if the batteries are OK, the "on" indicator lights up while the button is
pushed.
Phase overcurrent: it sends the phase protection test stimulus. The stimulus is
equivalent to 20 times the current setting Is.
Earth fault: it sends the earth protection test stimulus. The stimulus is equivalent
to a current greater than the highest of the Io> settings.
Trip inhibition: press the "trip inhibition" button if the VIP30/VIP35 test should be
carried out without tripping of the circuit breaker. Circuit breaker tripping is disabled
while the 'trip inhibition" button is pressed, even if the tripping order results from a
real fault.
Indicators
On: indicates that the batteries are operational. Also lights up when the battery test
is carried out by pressing "battery test".
Test in progress: confirms sending of the test stimulus to the VIP30/VIP35.
Trip:lights up when the VIP30/VIP35 sends a trip order (whether or not circuit
breaker tripping is inhibited).
VAP6 front panel.
"external mitop" output
It may be used to connect an auxiliary mitop designed, for instance, to stop a stopwatch during operating tests. The mitop is triggered at the same time as the circuit
breaker mitop. It is not disabled by pressing the "trip inhibition" button.
Batteries
to conserve battery life, the batteries are normally off and automatically go on when
the VAP6 is connected to the VIP30/VIP35.
They go on when:
the "battery test" button is pressed
the VAP6 is connected directly to a VIP3X or VIP5X relay
the VAP6 is connected to the adapter cord designed for testing the VIP1X or VIP2X
relays.
To install or change the batteries, open the unit by removing the 4 screws on the
bottom. Always observe correct battery polarity (+/-).
Technical characteristics
supply: 3 x 9 V 6LR61 batteries
weight: 0.45 kg
dimensions: 93 x 157 x 45 mm.
6
Functions and
characteristics
Using the VAP6 test unit
DE50917
VAP6 test sequence
The test may be carried out with or without current in the sensors. During the test
operations, all the VIP30/VIP35 settings are effective; the relay should perform in
accordance with the settings. During the test, the relay remains operational and will
give a tripping order in the event of a fault, unless the "trip inhibition" button is
pressed.
Connect the VAP6 to the "VAP6 test plug". The VAP6 batteries automatically go on
and the "on" indicator lights up.
Press the "trip inhibition" button if the test should be carried out without tripping of
the circuit breaker.
Be sure to keep the "trip inhibition" button pressed throughout the time it
takes to send the stimulus.
Press the "phase overcurrent" button to send the phase protection test stimulus:
continue pressing the button throughout the duration of the stimulus
the VAP6 "test in progress" indicator lights up to confirm the sending of the
stimulus to the VIP30/VIP35 relay
the VAP6 red "trip" indicator lights up to indicate that the relay has tripped
the circuit breaker trips if it is not inhibited.
If the "phase overcurrent" button is held down after tripping, the VIP30/VIP35
maintains the tripping order. This is normal operation.
In that case:
- the VAP6 "trip" indicator remains lit
- the circuit breaker mitop is supplied by the tripping order.
Press "earth fault" to test operation of the earth protection (VIP35); use the same
procedure as for the phase protection test.
disconnect the VAP6 (in order to save battery power, do not leave the VAP6
connected to the relay unnecessarily).
7
Functions and
characteristics
Phase protection
Operating threshold
Drop-out/pick-up %
Storage time
Earth protection (VIP35)
Current setting accuracy
Time delay accuracy
Drop-out/pick-up %
Storage time
Inrush current delay
General characteristics
Continuous thermal withstand
Short-time thermal withstand
Operating frequency
Operating temperature
Storage temperature
Weight
Release
Climatic withstand
Low temperature operation
Low temperature storage
High temperature operation
High temperature storage
Fast changes in temperature
Operation in damp heat
Salt spray
Mechanical withstand
Vibrations
Shocks and bumps
Earthquakes
Enclosure degree of protection
Fire
Electrical withstand
1.2/50 µs impulse voltage
Oscillatory waves - 1 MHz burst
Technical characteristics
1.2 Is ±10%
93 %
20 ms
(1)
±10 % or 0/+2 A
(6)
±10 % or ±20 ms
(4)
93 %
20 ms
1 s ±10%
110 A
270 A
25 kA/1 s
25 kA/0.3 s
50 Hz ±10%, 60 Hz ±10%
–25 °C to +70 °C
–40 °C to +85 °C
0.6 kg
mitop 993250
Standard
IEC 60068-2-1
IEC 60068-2-1
IEC 60068-2-2
IEC 60068-2-2
IEC 60068-2-14
IEC 60068-2-3
IEC 60068-2-52
Standard
IEC 60255-21-1
IEC 60255-21-2
IEC 60255-21-3
EN 60529
IEC 60695-2-1
Standard
IEC 60255-5
IEC 60255-22-1
(2)
if enabled
with CRc or CEc sensor 8-80A range
with CRc or CEc sensor 20-200A range
with CRc or CEc sensor 8-80A range
with CRc or CEc sensor 20-200A range
cable length < 2 m for 1 mm² cable
Severity
–25 °C, 16 h
–40 °C, 96 h
+70 °C, 16 h
+85 °C, 96 h
–25 °C to +70 °C, 5 cycles
56 days, 93 % RH
severity 1
Severity
class 2
class 2
class 2
IP54 (cover closed)
650 °C
Severity
5 kV (3)
2.5 kV common mode (3)
1 kV differential mode
Fast transient/burst
IEC 60255-22-4
4 kV common and diff. modes, 5 kHz burst (3)
1.2/50(8-20 µs) hybrid wave
IEC 61000-4-5
2 kV, 42 Ω (3)
Electrostatic discharge
IEC 60255-22-2
8 kV in air
6 kV on contact
HF electromagnetic field
IEC 60255-22-3
30V/m not modulated, 27-1000 MHz
(1) When the VIP30/VIP35 is used with CRc or CEc sensors wired for the 8-80 A range, the phase protection operating threshold accuracy is -10 % +30 %
for I < 20 A.
This is mainly due to the non-linearity of the sensors for low currents. The inaccuracy can reach the limit above if the relay is only supplied by one phase. This may
be the case during single-phase injection testing.
(2) Given for the operating threshold at 1.2 Is.
(3) Not applicable to the test plug.
(4) The times are measured for a phase-to-phase fault occurring with the relay is already supplied (prior presence of a current in the system that is greater than the
minimum operating current). In the event of closing on a fault, the tripping times may be increased by 20ms.
The times indicated do not include the mitop response time since it depends on the circuit breaker (the no load mitop tripping time is less than 5 ms).
(6) When the VIP30/VIP35 is used with CRc or CEc sensors, the earth protection operating threshold accuracy is ±10 % or 0/+6 A for I 30 A. This is mainly due
to the non-linearity of the sensors for low currents. The inaccuracy can reach the limit above if the relay is only supplied by one phase. This may be the case during
single-phase injection testing.
8
Technical characteristics
Functions and
characteristics
DE10327
Phase protection tripping curve
The curves below indicate the typical, minimum and maximum values of the VIP30/
VIP35 phase protection tripping time. The current is given in multiples of the current
setting Is. The time is given in seconds.
A few characteristic times (1) (2)
Current
t min
t typ
t max
2 Is
12 s
17 s
22 s
5 Is
1.9 s
3s
3.8 s
10 Is
90 ms
0.13 s
0.17 s
20 Is
14 ms
20 ms
26 ms
30 Is
10 ms
15 ms
20 ms
(1) The times are measured for a phase-to-phase fault occurring with the relay is already supplied
(prior presence of a current in the system that is greater than the minimum operating current). In
the event of closing on a fault, the tripping times may be increased by 20ms. The times indicated
do not include the mitop response time since it depends on the circuit breaker (the no load mitop
tripping time is less than 5 ms).
(2) The tripping times are measured for a sinusoidal current.
Operating thresholds (3)
min
typ
max
Threshold
1.08 Is
1.2 Is
1.32 Is
(3) When the VIP30/VIP35 is used with CRc or CEc sensors wired for the 8-80 A range, the phase
protection operating threshold accuracy is -10 % +30 % for I < 20 A. The tolerance is mainly due
to the non-linearity of the sensors for low currents. The inaccuracy can reach the limit above if
the relay is only supplied by one phase. This may be the case during single-phase injection
testing.
9
Installation and connection Mounting
Dimensions
DE10328
The VIP30/VIP35 is designed for flush-mounting in rectangular cut-outs in sheetmetal panels with a maximum thickness of 3 mm.
(*) The 4 holes are required only when
mounting the VIP on SFset or Evolis
24 kV circuit breakers.
DE10329
VIP30/VIP35 mounting dimensions.
Mounting the CSH30 core balance CT on the VIP35
DE10330
Mount the CSH30 core balance CT on the back of the casing using the 2 screws (G)
so that the "Merlin Gerin, CSH30, 3123973, P2" marking is on the visible side.
Tighten the 2 screws moderately.
In order to measure the residual current, the wires of the S1 secondary windings of
the 3 sensors are inserted through the CSH30 core balance CT and connected to the
fast-on connectors.
Connect outputs 1 and 2 of the CSH30 core balance CT to terminals 13 and 12 of
the VIP35 (F). The CSH30 core balance CT output is a low level signal so the length
of the 2 wires should not exceed 15 cm. Terminal 3 of the CSH30 core balance CT
output connector is not used.
The CSH30 and its two special 3 mm diameter screws for thermoplastic materials (G)
are supplied with the VIP35.
Mounting the VIP30/VIP35
DE50908
Insert the VIP30/VIP35 in the cut-out and correctly position the two bottom pins (H)
of the casing on the edge of the panel cut-out.
Tighten the mounting screw (V). It is accessible via the front after the transparent
cover has been opened.
After tightening, make sure that the latch (N) of the lock (visible on the rear face) is
in the vertical position, pressing against the panel.
The latch may be put into the vertical position by loosening the screw (V) before
tightening it.
The hole (P) may be used to lead-seal the relay after the setting label has been fitted
and the settings made.
10
Installation and connection Mounting
Fitting the setting label
DE10331
Check the position of the minimum time delay switch (d). The VIP30/VIP35 is
supplied with the time delay disabled.
The label is printed on both sides. This means that it may be turned around if the
range is changed during the service life of the installation.
Slide the setting label into position behind the transparent part of the front face.
Make sure the indications at the top of the label (M) match:
the relay type (VIP30 or VIP35)
the sensor wiring (S1-S2 or S1-S3).
This information is hidden when the label is in position.
Make sure that it is pushed right to the bottom of the slot.
To remove the label, use the hole in the top, if necessary with the help of the tip of a
pencil or screwdriver.
Setting label for VIP30 with CRc or CEc
sensors.
DE50913
S1-S2 wiring.
S1-S3 wiring.
DE50912
DE50911
Choosing the right setting label
Setting label for VIP35 with CRc or CEc
sensors.
S1-S2 wiring.
S1-S3 wiring.
Setting label for VIP30 WED with CRc or
CEc sensors.
S1-S2 wiring.
S1-S3 wiring.
11
Installation and connection Connection
Connecting the VIP30 with CRc or CEc sensors
Connections are made to the back of the VIP30/VIP35 via 6.35 mm fast-on
connectors.
The diagrams correspond to the S1-S3 wiring configuration.
The wiring of the sensor secondary windings determines the VIP30/VIP35 current
setting range.
DE50903
Current setting range
Do not earth the sensor secondary windings.
12
Wiring
8 A - 80 A
S1 - S2
20 A - 200 A
S1 - S3
Installation and connection Connection
Connecting the VIP35 with CRc or CEc sensors
Connections are made to the back of the VIP30/VIP35 via 6.35 mm fast-on
connectors.
The diagrams correspond to the S1-S3 wiring configuration.
The wiring of the sensor secondary windings determines the VIP30/VIP35 current
setting range.
Current setting range
Wiring
S1 - S2
20 A - 200 A
S1 - S3
DE50904
8 A - 80 A
Do not earth the sensor secondary windings.
DE50910
For the VIP35, run the S1 cable of each of the three sensors through the CSH30 core
balance CT (J) before connecting them to their respective terminals. Insert all three
S1 cables through the same side of the core balance CT.
Attach the wires from the unused secondary windings (K) to the plastic clips (L) to
prevent them from coming in contact with another conductor or metal frame. The
conductors are energized in operation and should not be accessible.
VIP35 wiring with CRc or CEc sensors.
13
Notes
14
Notes
15
Notes
16
YFJYVIIVGIT
6FKQHLGHU(OHFWULF
)55(9$
PCRED399007EN - © 2004 - Schneider Electric - All right reserved.
Schneider Electric Industries SAS
Postal address:
Communication Distribution Electrique
38050 Grenoble cedex 9 - France
Tel : +33 (0)4 76 57 60 60
As standards, specifications and designs change from time to time, please ask for confirmation
of the information given in this publication.
This document has been printed
on ecological paper.
http://www.schneider-electric.com
Design: Ameg
Publication: Schneider Electric
Printed:
ART.20492
01-2004
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