Variable Frequency AC Resonance Test System Withstand Voltage Applied on 33kV Cable Transformer GIS
AC Resonance Test System EPCZ 108kVA-27kV/54kV/108kV
The system is consisted by below units
- Variable Frequency Power supply
- Exciting Transformer
- HV Reactor
- Capacitive Divider
- Accessories Carrycase (connection wires)
Working Environment
- Environmental temperature: -15ºC to 40ºC
- Related humidity: ≤ 90% RH
- Altitude: ≤ 5000m
Application and requirement
1. The 35kV/300mm2 cable is 800m, the capacitance is ≤0.15μF, the test frequency is 30-300Hz, and the test voltage is 52kV.
2. 10kV/300mm2 cable 2000m, electric capacity ≤0.74μF, test frequency 30-300Hz, test voltage 22kV.
3. 35kV switch, insulator and busbar AC withstand voltage test, the test frequency is 30-300Hz, and the test voltage does not exceed 100kV.
4. 10k motor AC withstand voltage test, the test frequency is 45-65Hz, and the test voltage does not exceed 15kV.
5. AC withstand voltage test for transformers with 35kV less than 50000KVA, capacitance ≤0.02μF, test frequency 30-300Hz, and test voltage 85kV.
System technical specifications
1 System technical data table
| Rated output voltage |
Rated output voltage: 27kV / 54kV / 108kV |
| Resonant voltage waveform |
sine wave, waveform distortion rate ≤0.5% |
| Maximum tested product current |
4A 2A 1A |
| Maximum test capacity |
108kVA |
| Output frequency |
30~300Hz |
| Working time |
Continuous working time is 60min under full power output |
| Quality factor |
≥30 |
| Input working power |
Single phase 220V±10%, 50Hz |
| Ambient temperature |
-15ºC~+40ºC |
| Relative humidity |
<90RH%, no condensation |
| Altitude |
<5000m |
| Noise |
≤60dB |
More details on AC Resonance Test System EPCZ-108kVA-27kV/54kV/108kV please contact EP Hipot Electric.
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