Yueqing Sandi Electric Co.,Ltd is one of the leading China vlf very low frequency tester manufacturers,Website: , welcome to wholesale cheap vlf very low frequency tester from our professional factory. The main technical parameter Model Output Peak voltage Measuring range Weight Applications SVLF-30 30KV 0.1Hz≥1.1µF Controller: 4 kg Booster: 25 kg 10KV and below voltage cables,generator 0.05Hz≥2.2µF 0.02Hz≥5.5µF SVLF-40 40KV 0.1Hz≥1.1µF Controller: 4 kg Booster: 45 kg 13.8KV and below voltage cables,generator 0.05Hz≥2.2µF 0.02Hz≥5.5µF SVLF-50 50KV 0.1Hz≥1.1µF Controller: 4 kg Booster: 45 kg 15KV and below voltage cables, generator 0.05Hz≥2.2µF 0.02Hz≥5.5µF SVLF-60 60KV 0.1Hz≥1.1µF Controller: 4 kg First Booster:25 kg Second Booster:45 kg 20KV and below voltage cables, generator 0.05Hz≥2.2µF 0.02Hz≥5.5µF SVLF- 80 80KV 0.1Hz≥1.1µF Controller: 4 kg First Booster:25 kg Second Booster:45 kg 35KV and below voltage cables, generator 0.05Hz≥2.2µF 0.02Hz≥5.5µF