Subjects and test requirements
1. Ac voltage withstand test of 10kV/300mm², length 1.5km cable, capacitance ≤0.563uF, test frequency 30-300Hz, test voltage 22kV, test time 5min.
2, 35kV main transformer AC withstand voltage test, capacitance ≤0.02uF, test frequency 45-65Hz, test voltage does not exceed 68kV, test time 1min.

1. Rated capacity: 75kVA;
2. Input power supply: single-phase 220 or three-phase 380V voltage, frequency is 50Hz;
3. Rated voltage: 25kV; 75kV
4. Rated current: 3A; 1A
5. Working frequency: 30-300Hz;
6. Device output waveform: sine wave
7. Waveform distortion rate: output voltage waveform distortion rate ≤1%;
8. Working time: continuous 5min under rated load; Overpressure 1.1 times 1 minute;
9. Temperature rise: Temperature rise ≤65K after continuous operation for 5 minutes under rated load;
10. Quality factor: the device itself Q≥30(f=45Hz);
11. Protection function: over-current, over-voltage and flashover protection for the subject (see the inverter power supply part for details);
12. Measurement accuracy: 1.5 effective value of the system;