TEST-902 Low Voltage Circuit Breakers & Relay of 2000A Primary and
Secondary Current Injection Tester
TEST-902 Primary Current Injection Tester could simultaneously
display primary current, secondary current and turn ratio. It is
mainly suited for CT turn ratio and contact resistance tests of
power system and other occasions needed high current test.
2000A Primary Current Injection Tester of TEST-902 is applied in
power system for circuit breaker test, protection system test and
current transformer test. The tester generates 2000A high current
from power supply to simulate the rated current or fault current in
the primary circuit of power equipment.
TEST-902 is mainly applied to test CT turn ratio in the power
system and the contact resistance etc, which need large current.
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 and a current unit. The two
parts are portable, and TEST-902 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, 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 short-duration 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.
FEATURES
- 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
PARAMETERS
| Electrical parameters |
|---|
| Accuracy | ±0.5% |
| Power Supply (AC) | 220V±10%·50A, 50Hz/60Hz or
110V±10%·100A, 50Hz/60Hz |
| Current Output (AC) | 2000A·6V or 1000A·12V |
| Capacity | 12KVA |
| The current output waveform distortion | ≤5% |
| Primary current |
|---|
| Range | 0-2200A |
| Resolution | 0.1A |
| Accuracy | <0.5% |
| Secondary measurement |
|---|
| Range | 0-6A |
| Resolution | 0.001A |
| Accuracy | <0.5% |
| Current duration |
|---|
| 2000A range | 2000A 2-3minutes
1000A 3-6minutes |
| 1000A range | 1000A 2-3minutes |
| With timer |
|---|
| Range | 0.0001～999.99S |
| Resolution | 0.001S |
| Accuracy | <0.5%±5 words |
| Mechanical parameters |
|---|
| Dimensions (W×D×H) (mm) | 360×300×295and320×300×300 |
| Weight (kg) | Control Host 35kg,
External voltage regulator weight 15kg |
| Environmental conditions |
|---|
| Temperature | -10°C to 40°C |
| Relative humidity | ≤80% |
SELECTION GUIDE
| Model | ACCU
RACY | Primary
current | AMMETER
(0-6A) | TIMER | POWER | INJECTION CURRENT TIME | DIMENSION(W×D×H)(mm) | WEIGHT | REMARK |
|---|
| TEST-901 | 0.5% | 0-1100A | YES | YES | 5KVA | 1000A: 2-3min;
500A:3-6min | 430×260×260 | 25KG | Integrated structure |
| TEST-902 | 0.5% | 0-2200A | YES | OPTIONAL | 12KVA | 2000A:2-3min;
1000A:3-6min | 360×300×295 and 320×300×300 | 35KG+15KG | Fission structure |
| TEST-903 | 0.5% | 0-3300A | YES | OPTIONAL | 15KVA | 3000A:2-3min;
1500A:3-6min | 380×350×360 and 340×290×420 | 48KG+42KG | Fission structure |
| TEST-905 | 0.5% | 0-5500A | YES | OPTIONAL | 25KVA | 5000A:2-3min;
2500A:3-6min | 430×430×445 and 550×450×600 | 68KG+55KG | Fission structure |
