INTRODUCTION:
It is mainly used for field testing of P class CT and PT. The test items mainly include excitation
characteristic, transformation ratio, polarity, degauss, 5% and 10% error curves, secondary circuit
check, withstand test of power frequency alternating current and secondary load. Adopting LCD,
self-equipped mini type printer supporting field printing; supporting to use USB flash disk to
dump data, with simple and convenient operation.
FEATURES:
1.Used for field testing of P class CT and PT.
2.Adopting LCD, self-equipped mini type printer supporting field printing
3.Supporting to use USB flash disk to dump data, with simple and convenient operation.
FUNCTION:
| I. Current Transformer (CT) | II. Voltage Transformer (PT) |
| 1. Magnetization curve | 1. Excitation characteristic test |
| 2. Transformation ratio test | 2. Transformation ratio test |
| 3. Polarity | 3. Polarity |
| 4. 5% and 10% error curve | 4. Withstand test of power frequency alternating current |
| 5. Current Injecting | 5. Degauss |
| 6. Degauss | 6. Calculation of knee point value |
| 7. Withstand test of power frequency alternating current | 7. Actual secondary load test |
|
8. Automatic calculation of excitation knee
point value | 8. Resistance test |
|
| 9. Actual secondary load test | |
| 10. Resistance test | |
PARAMETERS:
| Electrical parameters |
| Accuracy | 0.2%, 0.5% |
| Power supply | AC220V±10% or AC110V±10%, 50/60Hz |
| Excitation voltage output | 0-2500Vrms, |
| Excitation current output | 0-5Arms(20A peak-value) |
| Large current output | 0-1000A |
| Accuracy | ≤0.5%(0.2%RD+0.3%RG) |
| Secondary winding DC resistance measurement | Range | 0.1-300Ω |
| Accuracy | ≤0.5%(0.2%RD+0.3%RG) |
| Secondary actual load measurement | Range | 5VA-1000VA |
| Accuracy | ≤0.5%(0.2%RD+0.3%RG)±0.1VA |
| CT/PT phase error measurement | Accuracy | ±4min |
| Resolution | 0.01min |
| CT ratio error measurement | Range | ≤25000A/5A(5000A/1A) |
| Accuracy | ≤0.5% |
| PT ratio error measurement | Range | 1-500KV |
| Accuracy | ≤0.5% |
| Standards | |
| Reference standards | GB1207-2006, GB1208-2006, GB16847-1997
IEC60044-1, IEC60044-6, IEC61869-2-2012 |
| Safety standards | GB 4793.1-2007 |
| EMC | EMC standard 89/336/EEC |
| FCC Subpart B of Part 15 Class A |
| IEC 1000-4-2 /3 /4 /6 |
| Mechanical parameters | |
| Overall dimension (L x W x H) (mm) | 400 x 250 x 250 |
| Weight(Kg) | ≤22 |
| Environmental conditions | |
| Relative humidity | 90RH% |
| Operating temperature | -10°C to +40°C |
| Altitude | ≤1000m |
