High-voltage variable-frequency power supplies play a crucial role in high-voltage transformer testing. Their core advantage lies in their ability to flexibly adjust the frequency and amplitude of the output voltage. Their compact size and flexible operational characteristics make them suitable for high-voltage transformer testing, serving as a viable alternative to traditional generator sets.
- Power supply voltage and frequency: Three-phase 10kV ±10%; 50Hz ±5Hz (customizable).
- Rated capacity: 1000, 2000, 3000, 4000, 5000 kVA (customizable).
- Rated output voltage: Line voltage 0–10.5 kV, continuously adjustable (customizable).
- Output mode: Delta connection; three-phase and single-phase operation are also supported.
- Three-phase phase shift: <120° ±0.01°.
- Three-phase output symmetry: Unbalance in three-phase line voltages ≤1%.
- Output waveform: Standard sine wave.
- Output waveform distortion: ≤3.0%.
- Output voltage instability: ≤1.0%. Adjustable output frequency range: 45Hz to 200Hz.
- Output frequency adjustment sensitivity: 0.1Hz.
- Output frequency instability: ≤0.005%.
- Cooling method: Forced air cooling.
- Noise level: <70dB.
- Partial discharge: <10pC.
Customization of different capacities and parameters is acceptable.
