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QLD-75kVA75kV
The QLD-75kVA75kV provides reliable high-voltage withstand testing for a comprehensive range of electrical equipment. Engineered for precision, it delivers up to 75kV to ensure your components meet rigorous performance and safety standards. Its portable, compact design facilitates easy transport between laboratory and field environments, making it a versatile solution for various testing scenarios.
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
