Voltage: 200kV - 2000kV The variable frequency resonant system is designed for 1000kV and below voltage SF6 circuit breaker, GIS, XLPE power cable and other high capacitance power equipment on-site withstand test and 1000kv and below voltage instrument transformer, coupling capacitor, zinc oxide power equipments partial discharge test. MAIN FEATURE- High Q value- Wide variable frequency range: 30-300Hz- Low partial discharge ( PD) level- Can do on-site test for 10km length 200kV XLPE power cable ( 1200 mm2) Mail: helen@ himalayal.com.cn http: / / www.himalayal.com.cn