Variable resonant frequency test system EPCZ

for electrical networks

The system is consisted by below units -Variable Frequency Power supply -Exciting Transformer -HV Reactor -Capacitive Divider -Accessories Carrycase (connection wires) Application and requirement 1. The 35kV/300mm2 cable is 800m, the capacitance is ≤0.15μF, the test frequency is 30-300Hz, and the test voltage is 52kV. 2. 10kV/300mm2 cable 2000m, electric capacity ≤0.74μF, test frequency 30-300Hz, test voltage 22kV. 3. 35kV switchgear, circuit breaker, insulator and busbar AC withstand voltage test, the test frequency is 30-300Hz, and the test voltage does not exceed 100kV. 4. 10kV motor AC withstand voltage test, the test frequency is 45-65Hz, and the test voltage does not exceed 15kV. 5. AC withstand voltage test for transformers with 35kV less than 50000KVA, capacitance ≤0.02μF, test frequency 30-300Hz, and test voltage 85kV.