Three Phase Relay Protection Microcomputer Test System, substation Programmable Three Phase Secondary Current Injection Test Set of Relay
Test-330 is a three phase current output and five phase voltage output relay tester with embedded host machine equipped with Complex Programmable Logic Device.
The purpose of secondary injection testing is to check that the protection scheme from the relay input terminals onwards is functioning correctly with the settings specified. This is achieved by applying suitable inputs from a test set to the inputs of the relays and checking if the appropriate alarm/trip signals occur at the relay/control room/CB locations.
The secondary injection test simulates the current and voltage transformer secondaries, by injecting single-phase or three-phase currents and voltages into relays, devices o into the secondary circuits, performing all the corresponding checking and testing with normal and fault conditions. The widest range of equipment for secondary injection test.
Secondary injection test on each relay to prove operation at one or more setting values Primary injection tests on each relay to prove stability for external faults and to determine the effective current setting for internal faults (essential for some types of electromechanical relays)
Over View
1 . Three phase current output
2 . Five phase voltage output
3 . Accuracy class 0.2%
4 . Embedded host machine equipped with Complex Programmable Logic Device (CPLD)
Parameters
| Electrical parameters |
| Power voltage | AC220V±10% or AC110V±10%, 50/60Hz±10% |
| Time measurement | 0.1ms-999999.999s |
| AC current output | |
| Phase current output (effective value) | 3 x 0-30A |
| Maximum power output | 260VA/phase |
| Maximum parallel current output (effective value) | 0-90A |
Long-term allowable working value of phase current
(effective value) | >10A |
| Allowable working time of maximum current | >11s |
| Accuracy class | <±0.2% |
| AC voltage output | |
| Phase voltage output (effective value) | 5 x 0-130V |
| Line voltage output (effective value) | 0-260V |
| Maximum power output | 70VA/phase |
| Accuracy class | <±0.2% |
| DC current output | |
| Output range | -10 to 10A or 3 x 0 to ±10A |
| Maximum power output | 200VA |
| Accuracy class | <±0.2% |
| DC voltage output | |
| Output range | 0-300V or 5 x 0 to ±130V |
| Maximum output power | 130VA |
| Accuracy class | <±0.2% |
| Binary input | |
| Idle contact | 1-20mA, 24V (DC) |
| Electric potential contact | 250V/0.5A (DC) |
| Binary output | |
| Idle contact | 250V/0.5A (DC) |
| Rated output | |
| Frequency error | <±0.01Hz |
| Phase error | <±0. 2° |
| Waveform distortion | <±0.3% (fundamental wave) |
| Time error | <40µs |
| Output frequency | 0-1050Hz |
| Superposed harmonic wave | 0-21times |
| Mechanical parameters | |
| Dimensions (L×W×H) (mm) | 360x195x375 |
| Weight (kg) | 16.6 |
| Environmental conditions | |
| Use range | 0°C to 45°C |
| Storage range | -25°C to 70°C |
The Product Picture:
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substation Programmable Three Phase Secondary Current Injection Test Set of Relay Images
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