Very Low Frequency Tester for High Voltage Cable 80KV 1.Pure sine wave output 2.suitable for ... testing power cables,transformer Very Low Frequency Tester for ... . Output voltage ratings: 30KV, 40KV, 50KV, 60KV, 70KV, 80kV (peak)2. Output frequency: 0.1Hz, 0.05Hz, 0. ... 22433× 18× 3437× 24× 3925+4512A Very Low Frequency Tester for High Voltage Cable 80KV