PD-Free AC Resonant Test System With Ultra-Low Background Noise

HMCXZW-300kVA 300kV Partial Discharge-Free Variable-Frequency Series Resonance Unit-High-Voltage AC Withstand Test + High-Precision Partial Discharge Two-in-One Test Power Supply, specifically designed for factory quality inspection of high-voltage equipment such as transformers, GIS, long cables, and current transformers. This 300kVA medium-to-large-capacity partial discharge-free system can accommodate long-distance 220kV cables, high-capacity GIS, and large main transformers for simultaneous withstand voltage and partial discharge testing; the frequency is adjustable from 30 to 300 Hz, compatible with power-frequency withstand voltage and transformer induction withstand voltage (100/150 Hz).

• 1 Rated Input Voltage: Three-phase AC 400 V ±10%, 50 Hz

  2 Rated Output Power: Single-phase 300 kW

  3 Output Frequency Range: 20 Hz to 300 Hz, continuously adjustable

  4 Rated Output Voltage: 0 to 350 V, continuously adjustable

  5 Rated Output Current: 0 to 857 A, continuously adjustable

  6 Frequency Instability: ≤0.05%

  7.Partial Discharge: ≤10 pC (measured on the high-voltage side of the step-up transformer)

  8. Dimensions: 1,800 × 800 × 1,800

  9. Weight: 1,500 kg

  10.Noise Level: < 85 dB