Partial Discharge-Free Frequency Modulated Series Resonant Test System

The HMCXZ-3750kVA/750kV fourth-generation variable-frequency series resonance withstand voltage test set is designed for AC withstand voltage testing of 110kV, 220kV, 330kV, and 500kV power cables, circuit breakers, GIS, insulators, busbars, power transformers, and current transformers. 

• Rated Capacity: 3750 kVA
• Rated Output Voltage: 750 kV
• Input Power: Three-phase 380 V / Single-phase 220 V, 50 Hz
• Operating Frequency Range: 30–300 Hz
• Output Voltage Waveform Distortion: <1.0%
• Internal Power Factor: Q > 50
• Cable full-load quality factor: Q > 30 (varies with load)
• System measurement accuracy: Class 1.5