... of 0.1Hz SVLF series1,Small volume, light weight, easily to operate. Theoretically speaking, the capacity is of 1/500 ... in the insulating condition.3. Unlike DC test, it’s uneasy to destroy cables; meanwhile the capacitance effect of testing articles has ... research,design and manufacture of independent intellectual property rights according to power standard4. Multi-frequency selections (0.1Hz,0.05Hz, ...