The automatic system can meet below test requirements :
1.400kV and below cables, the unit length electricity capacity is 0.012 μF/km, the lengthdoes not exceed
0.8km, the testvoltage is ≤231kV, the resistance time is 60min;
2.400kV and below GIS and other AC pressure tests. The electricity capacity does not exceed 55NF (maximum 155nf can be tested in 3 times), the test voltage is5 20kV, the test frequency is 30 to 300Hz, the resistance time is 30 minutes