Test Scope
- AC withstand voltage test for 1.5km of 10kV/300mm² cable: capacitance ≤0.5632uF, test frequency 30-300Hz, test voltage 22kV, test time 5min.
- AC withstand voltage test for 0.35km of 35kV/300mm² cable: capacitance ≤0.0681uF, test frequency 30-300Hz, test voltage 52kV, test time 60min.
- AC withstand voltage test for 35kV main transformer: capacitance ≤0.02uF, test frequency 45-65Hz, test voltage not exceeding 68kV, test time 1min.
- AC withstand voltage test for 10kV switches and other electrical equipment: test frequency 30-300Hz, test voltage not exceeding 42kV, test time 1min.
Main components of the device
| Item No. | Equipment Name | Specifications | Unit | Quantity |
|---|---|---|---|---|
| 1 | Variable Frequency Power Supply | UHVXZ-6kW | Unit | 1 |
| 2 | Excitation Transformer | UHVJL-6kVA/1.5/3/6kV/0.4kV | Unit | 1 |
| 3 | High Voltage Reactor | UHVDK-25kVA/25kV | Section | 3 |
| 4 | Capacitor Divider | UHVFY-1000pF/80kV | Set | 1 |
Main technical parameters and functions
- Rated capacity: 75kVA
- Rated voltage: 25kV; 75kV
- Ampere rating: 3A; 1A
- Measurement accuracy: System RMS Class 1.5
- Working Frequency: 30-300 Hz
- Output waveform of the device: Sine Wave
- Quality factor: Q ≥30(F = 45hz)
- Waveform distortion rate: output voltage waveform distortion rate ≤1%
- Input Power: single-phase 220 or three-phase 380V voltage, frequency 50Hz
- Working Time: 60 min under rated load; overvoltage 1.1 times 1 min.
- Temperature rise: temperature rise ≤65K after continuous operation for 60 min under rated load
- Protection functions: Overvoltage, overcurrent, zero-position start, system detuning (flashover) protection, etc.
- Ambient temperature: -20℃ to 55℃
- Relative humidity: ≤90%RH
- Altitude: ≤3000 meters
