Programma ODEN AT Primary Current Injection Test

Programma ODEN AT Primary Current Injection Test
Programma
ODEN AT Primary Current Injection Test System
Programma
ODEN AT
Primary Current Injection Test System
DESCRIPTION
This powerful test system is designed for primary injection
testing of protective relay equipment and circuit breakers.
It is also used to test the turns ratio of current transformers
and for other applications that require high variable
currents.
The system consists of a control unit together with one,
two or three current units. There are three versions of the
current unit: S, X and H. The S and X current units are
identical except that the X unit has an additional 30/60 V
output. The H unit is rated for even higher current. This
makes it possible to configure an ODEN AT system in a
suitable way. All parts are portable, and ODEN AT can be
quickly assembled and connected.
The control unit has many advanced features – a powerful
measurement section for example, that can display turns
ratio as well as time, voltage and current. A second
measurement channel can be used to test an additional
current or voltage. Current transformer turns ratio,
impedance, resistance, power, power factor (cos ϕ) and
phase angle are calculated and shown in the display.
Current and voltage can be presented as percentages of
nominal value. The fast-acting hold function freezes shortduration readings on the digital display when the voltage
or contact signal arrives at the stop input, the object under
test interrupts the current or injection is stopped.
■
Most Advanced Primary Current Injection
Test System to simplify all types of
switchgear and CT commissioning, ground
grid, circuit breaker testing and more
■
Modular design to permit optimal
user configuration of output current
vs. unit size
■
Compact transport cart facilitates
portability into switchgear rooms
with limited space
■
Unique I/30 function allows the current to
be pre-set using low current to prevent
test sample heating, thus eliminating
corruption of test result
APPLICATION
Primary current injection testing and breaker testing
These tests require high currents and the ability to
measure very short duration, current flow. Oden AT has
been designed especially to meet these needs. No extra
contacts are needed to measure the operating time of a
low-voltage breaker. Testing stops at the instant when the
main breaker contacts open to interrupt the current.
Output current initiation is synchronized with the currents
zero-crossover point to ensure good repeatability and
minimized DC offset.
Testing current transformers
For turns ratio testing, the primary current and either the
secondary current or the turns ratio are displayed
simultaneously. Since the turns ratio is displayed directly
as the nominal value (1000/5 for example), no further
calculation is needed. Burden of secondary circuits can be
measured and presented in VA.
Polarity testing
The currents phase displacement is shown, and the
polarities of the outputs are clearly marked.
Heat runs
Oden AT is ideal for performing heat runs. Current can be
applied continuously or through programmable intervals.
The times can be shown in minutes and hours which
facilitates long-term testing capability.
Programma
ODEN AT Primary Current Injection Test System
Automatic reclosers and sectionalizers
SPECIFICATIONS
Oden AT can also be set to test circuit breakers with
reclosing relays. Operating limits, partial times, total times
and the number of operations before lockout can be
measured. User-selectable reclosing sequences can be
programmed for testing sectionalizers.
Specifications are valid at nominal input voltage and an ambient
temperature of +25°C, (77°F). Specifications are subject to change
without notice.
Testing integrity of ground grids and safety-ground
devices
One way to test ground grids is by injecting current
between a reference ground and the ground to be tested
and measuring the voltage drop and the percentage of
current flowing through the ground grid. The type X
current unit included with Oden AT is designed for this
type of application. Personal safety grounds must be
tested at rated current, a task for which Oden AT is well
suited.
FEATURES AND BENEFITS
■ Miniature circuit breaker — provides safety circuit
isolation between voltage supply input and output
terminals. Can also be actuated manually.
■
Simple-to-use two line display — provides the user with
many different display options. This simple display
provides the user with the following:
■
Output current
■
External voltmeter
■
External ammeter input
■
Phase angle
■
Calculated quantities Z (impedance),
P (active power), R (resistance), X (reactance),
S (apparent power), Q (reactive power) can also
be displayed
■
Current reduction button (I/30) — used to pre-set test
current at 1/30th of its actual value. Useful in order to
avoid unintentional tripping and overheating. Also
features a simple-to-use fine and course current control.
■
Output-initial control and output-energized warning
light. Also includes an RS-232 communication port
which provides transfer of test data to a PC.
■
An external voltmeter and ammeter input allows the
user to simplify primary injection CT testing as well as
many other applications.
■
Main ammeter setup controls — permits the main
ammeter to read the output current directly, eliminating
the need for the user to compensate for external current
output connections.
System designation
An ODEN AT-system consists of a control unit and one, two or
three current units. There are three different versions of the
current units: S-unit (standard), X-unit (extra 30/60 V outlet) and
H-unit (high current). The system designation indicates the
number and version of current units included.
Example: ODEN AT/2X
2 = Number of current units
X = Version of current unit (S, X or H)
Environment
Application field
The instrument is intended for use in highvoltage substations and industrial
environments.
Temperature
Operating
0°C to +50°C (+32°F to +122°F)
Storage & transport -25°C to +55°C (-13°F to +127°F)
Humidity
5% – 95% RH, non-condensing
CE-marking
LVD
EMC
Low Voltage Directive 73/23/ EEC am.
by 93/68/EEC
EMC Directive 89/336/EEC am.
by 91/263/EEC, 92/31/EEC and 93/68/EEC
General
Input power voltage 240/400 V AC, 50/60 Hz 480 V AC/60 Hz
Voltage inlet
IEC 60309-2, 63 A
Input current
Output current x open circuit
voltage/input voltage
Protection
The output transformer has a built-in
thermal cut-out, and the primary side is
protected by a miniature circuit breaker.
Dimensions
Control unit AT
570 x 310 x 230 mm (22.4” x 12.2” x 9”)
Current unit S, X H 570 x 310 x 155 mm (22.4” x 12.2” x 6”)
Complete with cart 690 x 350 x 860 mm (27.2” x 13.8” x 33.9”)
Weight
25 kg (55 lbs)
Control unit AT
42 kg (92.6 lbs)
Current unit S
Current unit X
45 kg (99.3 lbs)
Current unit H
49 kg (108 lbs)
Cart
11 kg (24.3 lbs)
Display
LCD
Available languages English, German, French, Spanish, Swedish
Measurements
■
Timer start and stop controls — provides the user with
the ability to start and stop the instrument’s timer on the
initiation of current or transition of contact.
Ammeters
Measurement method AC, true RMS
Inaccuracy
1% of range ±1 digit
Ammeter 1
Ranges
0 – 4800 A/0 –15 kA
0 – 9600 A/0 – 30 kA
0 – 960 A/0 – 3 kA
Ammeter 2
Ranges
0 – 2.000 A / 0 – 20.00 A
Maximum current 20 A (The input is not protected by a fuse)
Programma
ODEN AT Primary Current Injection Test System
Voltmeter
Measurement method
Ranges
Inaccuracy
Input resistance (Rin)
Dielectric withstand
Timer
Presentation
Ranges
Accuracy
Outputs
AC, true RMS
0 – 0.2 V, 0 – 2 V, 0 – 20 V,
0 – 200 V, AUTO
1% of range ±1 digit
240 kΩ (range 0 – 200 V)24 kΩ
(other ranges)
2.5 kV
In seconds, frequency cycles or hours
and minutes
0.000 – 99999.9 s
0 – 9999 cycles
0.001 s – 99 h 59 min
±(1 digit + 0.01% of value) For the stop
condition in INT-mode 1 ms shall be added to
the specified measurement error.
Stop Input
Max. input voltage 250 V AC/275 V DC
Phase angle
Range
Resolution
Inaccuracy
0 – 359°
1º
±2º (for voltage and current readings that
are higher than 10% of the selected range)
Z, P, R, X, S, Q and power factor (cos ϕ)
For these measurements the result is calculated using V, I and
sometimes ϕ.
Z = Impedance
P = Active power
R = Resistance
X = Reactance
S = Apparent power
Q = Reactive power
Imax
Stores highest current value that exists ≥100 ms
INT-level
Threshold indicating that current is interrupted. Can be set to 0.7%
or 2.1% of Ammeter 1 range.
ODEN AT, 240 V supply voltage, 50/60 Hz
Open
Max.
Max.
Max.
circuit continuous current
current
voltage current3) 3 minutes 1 sec3)
ODEN AT/1S
6V
1000 A
2000 A
7000 A
1)
2)
6V
12 V
1680 A
1000 A
3600 A
2000 A
8000 A
4000 A
1)
2)
6V
18 V
2500 A
840 A
5200 A
1700 A
8000 A
2600 A
6V
1000 A
2000 A
7000 A
30 V
60 V
160 A
80 A
300 A
150 A
1200 A
600 A
6V
12 V
1680 A
1000 A
3600 A
2000 A
8000 A
4000 A
30 V
60 V
120 V
320 A
160 A
80 A
600 A
300 A
150 A
1600 A
800 A
400 A
6V
18 V
2500 A
840 A
5200 A
1700 A
8000 A
2600 A
30 V
90 V
180 V
480 A
160 A
80 A
900 A
300 A
150 A
1600 A
520 A
260 A
3.6 V
1250 A
2600 A
11 kA
1)
2)
3.6 V
7.2 V
2500 A
1250 A
5500 A
2800 A
13 kA
6500 A
1)
2)
3.6 V
10.7 V
3800 A
1250 A
8000 A
2800 A
13 kA
4300A
ODEN AT/2S
ODEN AT/3S
ODEN AT/1X
High current
output
Output 0 – 30/60 V
30 V range
60 V range
ODEN AT/2X
High current 1)
output
2)
Output 0 – 30/60 V
30 V range
1)
30 V range
2)
60 V range
2)
ODEN AT/3X
High current 1)
output
2)
Output 0 – 30/60 V
30 V range
1)
30 V range
2)
60 V range
2)
ODEN AT/1H
ODEN AT/2H
Current (kA)
ODEN AT/3H
Output voltage* (V)
High current output - ODEN AT systems for 240 V, 50 Hz
Programma
ODEN AT Primary Current Injection Test System
ODEN AT, 480 V supply voltage, 60 Hz
Open
Max.
Max.
Max.
circuit continuous current
current
3)
voltage current 3 minutes 1 sec3)
7.2 V
1000 A
2000 A
7000 A
1)
2)
7.2 V
14.4 V
1900 A
900 A
4000 A
2000 A
13 kA
6000 A
1)
2)
7.2 V
21.6 V
1900 A
600 A
4000 A
1400 A
13 kA
4400 A
7.2 V
1000 A
2000 A
7000 A
36 V
72 V
160 A
80 A
300 A
150 A
1200 A
600 A
ODEN AT/2X
High current 1)
output
2)
7.2 V
14.4 V
1900 A
900 A
4000 A
2000 A
13 kA
6000 A
Output 0 – 30/60 V
30 V range
1)
60 V range
1)
60 V range
2)
36 V
272 V
144 V
320 A
160 A
80 A
600 A
300 A
150 A
2500 A
1200 A
600 A
ODEN AT/3X
High current 1)
output
2)
7.2 V
21.6 V
1900 A
600 A
4000 A
1400 A
13 kA
4400 A
Output 0 – 30/60 V
30 V range
1)
30 V range
2)
60 V range
2)
36 V
108 V
216 V
380 A
120 A
60 A
850 A
290 A
145 A
2600 A
880 A
440 A
4.3 V
1250 A
2600 A
11 kA
1)
2)
4.3 V
8.7 V
2500 A
1250 A
5300 A
2500 A
21 kA
10.9 kA
1)
2)
4.3 V
13.0 V
3800 A
1250 A
7700 A
2600 A
21.9 kA
7200 A
ODEN AT/2S
ODEN AT/3S
ODEN AT/1X
High current
output
Output 0 – 30/60 V
30 V range
60 V range
Output voltage* (V)
ODEN AT/1S
Current (kA)
ODEN AT/1H
ODEN AT/2H
ODEN AT/3H
1) Current units connected in parallel
2) Current units connected in series
3) Maximum possible current is also limited by the impedance in
the test circuit. The current value can not exceed output
voltage/impedance value.
High current output - ODEN AT systems for 480 V, 60 Hz
S or X units
H units
p = units in parallel, s = units in series
*) Voltage between output terminals
Programma
ODEN AT Primary Current Injection Test System
1
18
17
2
16
3
15
4
5
6
7
8
9
10
12
11
13
14
7.
Momentary Injection — When this button is used, injection
continues only as long as it is pressed. Useful in order to
avoid for example overheating.
8.
Injection — Starts current injection and timing.
9.
RS232 for computer — Oden AT is equipped with a serial
port for communication with personal computers (for transfer
of test data for example).
1.
Miniature circuit breaker used for current output —
Interrupts output current. Can also be actuated manually for
safe disconnection of load.
2.
Display — The display presents time, output current, voltage,
current shown on ammeter 2 and phase angle. You can scroll
through entities Z, P, Q, R, X, S, power factor (cos ϕ) and I
max.
3.
Hold function — This function freezes readings on the
display.
10. Manual shut-off — Injection and timing are stopped when
this button is pressed.
4.
Setting buttons — Personnel unfamiliar with Oden AT can
use the pre-defined settings very effectively, while
experienced users can make their own basic settings.
■ Ammeter. Used to set the main current-output ammeter.
You can select the desired range or select autoranging.
■ V/A Meter. Toggles between the voltmeter and ammeter 2.
Also used to select the desired range or select autoranging.
■ System. Used for general settings.
■ Memory. Used to save or recall settings to or from the ten
Oden AT memories. One of these memories contains the
default (pre-defined) settings that are invoked when Oden AT
is powered up.
■ Application. Used to invoke the desired measurement
mode: a) automatic recloser, b) sectionalizer or
c) microhmmeter. Oden AT can also be set to generate pulse
trains with user-selectable pulse and pause times.
11. Automatic injection stop — Generation stops after a userspecified interval or when condition at the input is met. The
diodes show the selected OFF condition.
5.
Selection/setting (CHANGE) knob — Selects the desired
menu option (shown in the display window). Also used to
change numerical values.
6.
Current reduction button — Used during setting to reduce
the output current to 1/30. Useful in order to avoid for
example unintentional tripping and overheating.
12. Stop-condition indicator — Indicates that a contact
connected to the input is closed or if voltage is present.
13. Status indicator — Indicates if a contact connected to the
input is closed or if voltage is present.
14. Stop input — Used to freeze a reading or stop injection.
Activated when current is interrupted by the object being
tested, when an external contact is actuated or when a
voltage is applied or removed.
15. Indicator lamps — Indicate whether ammeter 2 or the
voltmeter is enabled.
16. Input for ammeter 2 — Used to measure current in an
external circuit (in a current transformer´s secondary winding
for example).
17. Input for voltmeter — Used to measure voltage and also for
microhmmeter measurement.
18. Fine adjustment knob — Knob for fine adjustment of
current and +/- buttons for coarse adjustment.
Programma
ODEN AT Primary Current Injection Test System
OPTIONAL ACCESSORIES
HCP2000 — High Current Probe
The high current probe, HCP2000, is a tool that makes
it possible to test Molded Case Circuit Breakers (MCCB),
without removing/uninstalling the circuit breaker. The
high current probe operates from 16 A up to 1500 A
trip current.
High current serial bar
For serial connecting of ODEN current units.
Input power adapter 240/400V
Current transformer switchbox
Used to run a 400 V ODEN AT at 240 V. Can only be used
together with an ODEN AT.
The Current Transformer (CT) Switchbox for ODEN AT is
a tool that is used to facilitate CT testing. The secondary
windings on the CT are connected to the CT Switchbox
inputs and the CT Switchbox output is connected to
ODEN AT Ammeter 2 terminals. The switch on the CT
Switchbox is used to select which secondary winding on
the CT that should be measured. The windings that aren’t
measured are short-circuited. The CT Switchbox can
handle up to 5 secondary windings.
Multi-cable high current cable sets
Low-impedance multi-cable sets for higher output current.
Available with 2, 3, 4 or 6 parallel cables, and in lengths
of 0.5, 1.0, 1.5 or 2 meters.
Cable sets
See Ordering Information.
Programma
ODEN AT Primary Current Injection Test System
ORDERING INFORMATION
Item (Qty)
Cat. No.
A cart (Art.No. 50-00092) is always included with purchase of a
complete ODEN system. The cable set(s) for connection to the object
under test must however be stated as a separate item in the order.
Cable for connecting current units in series is included with purchase
of a current unit.
ODEN AT/1S
240 V Mains voltage
480 V (60 Hz) Mains voltage
BH-62411
BH-64811
ODEN AT/2S
240 V Mains voltage
480 V (60 Hz) Mains voltage
BH-62412
BH-64812
BH-62413
BH-64813
ODEN AT/1X
240 V Mains voltage
480 V (60 Hz) Mains voltage
BH-62421
BH-64821
ODEN AT/3X
240 V Mains voltage
480 V (60 Hz) Mains voltage
ODEN AT/1H
240 V Mains voltage
480 V (60 Hz) Mains voltage
ODEN AT/2H
240 V Mains voltage
480 V (60 Hz) Mains voltage
ODEN AT/3H
240 V Mains voltage
480 V (60 Hz) Mains voltage
Cat. No.
Optional accessories
HCP2000
AA-90160
Current Transformer Switchbox
BH-90130
High Current Serial Bar
BH-90102
Mains Adapter 240/400V
ODEN AT/3S
240 V Mains voltage
480 V (60 Hz) Mains voltage
ODEN AT/2X
240 V Mains voltage
480 V (60 Hz) Mains voltage
Item (Qty)
BH-62422
BH-64822
Note: Can only be used together with
an ODEN AT prepared for this feature.
BH-90120
Multi-cable high current cable sets
Length
Impedance (Twisted-pair cables)
Cross section area: 240 mm2 (2x120)
2 x 0.5 m (1.6 ft)
0.21 mΩ
GA-12205
2 x 1 m (3.3 ft)
0.32 mΩ
GA-12210
2 x 1.5 m (4.9 ft)
0.42 mΩ
GA-12215
2 x 2 m (6.6 ft)
0.53 mΩ
GA-12220
Cross section area: 360 mm2 (3x120)
2 x 0.5 m (1.6 ft)
0.18 mΩ
GA-12305
2 x 1 m (3.3 ft)
0.25 mΩ
GA-12310
2 x 1.5 m (4.9 ft)
0.32 mΩ
GA-12315
2 x 2 m (6.6 ft)
0.39 mΩ
GA-12320
Cross section area: 480 mm2 (4x120)
BH-62423
BH-64823
BH-62431
BH-64831
BH-62432
BH-64832
BH-62433
BH-64833
2 x 0.5 m (1.6 ft)
0.16 mΩ
GA-12405
2 x 1 m (3.3 ft)
0.21 mΩ
GA-12410
2 x 1.5 m (4.9 ft)
0.27 mΩ
GA-12415
2 x 2 m (6.6 ft)
0.32 mΩ
GA-12420
Cross section area: 720 mm2 (6x120)
2 x 0.5 m (1.6 ft)
0.14 mΩ
GA-12605
2 x 1 m (3.3 ft)
0.18 mΩ
GA-12610
2 x 1.5 m (4.9 ft)
0.21 mΩ
GA-12615
2 x 2 m (6.56 ft)
0.25 mΩ
GA-12620
Cable set, 2 x 5 m (16 ft), 120 mm2
Cross section area: 120 mm2
Weight: 15.2 kg (33.5 lbs)
Impedance: 2.2 mΩ
GA-12052
Cable set, 2 x 5 m (16 ft), 25 mm
Cross section area: 25 mm2
For the 30/60 V output of current unit X.
Weight: 4 kg (8.8 lbs)
GA-02052
2
UK
Archcliffe Road, Dover
CT17 9EN England
T +44 (0) 1 304 502101
F +44 (0) 1 304 207342
UKsales@megger.com
UNITED STATES
4271 Bronze Way
Dallas, TX 75237-1019 USA
T 1 800 723 2861 (USA only)
T +1 214 333 3201
F +1 214 331 7399
USsales@megger.com
OTHER TECHNICAL SALES OFFICES
Täby SWEDEN, Norristown USA,
Sydney AUSTRALIA, Toronto CANADA,
Trappes FRANCE, Kingdom of BAHRAIN,
Mumbai INDIA, Johannesburg SOUTH
AFRICA, and Chonburi THAILAND
Registered to ISO 9001:2000 and
ISO 14001:2004
Cert. no. GBG0005937
ODEN_AT _DS_en_V01
www.megger.com
Megger is a registered trademark
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