General information:
VLF Test Sets from 30kV - 90kV with Sine Wave Output
VLF means Very Low Frequency is used in AC hipot test for power cables, transformers, switchgear and other electrical apparatus.
A VLF hipot is just an AC output tester but with an output frequency of 0.1 Hz or lower rather than 50/60Hz. Although the frequency is very low, it is still an alternating current with polarity reversals every half cycle. At 0.1 Hz output, rather than 60Hz, it takes 600 times less current and power to apply an AC voltage to a capacitive load, like a long cable.
Features:
√ Adapts microprocessor controlled, can realize voltage set-up/down, measuring and protecting automatically. Manual intervention is allowable even during the auto voltage boosting.
√ Portable, easy to move.
√ Large LCD can display waveform clearly, and test report can be printed by built-in printer.
√ The data of current, voltage, and waveform can be sampled at HV side.
√ Over voltage protectio
VLF Test Sets from 30kV - 90kV with Sine Wave Output
VLF means Very Low Frequency is used in AC hipot test for power cables, transformers, switchgear and other electrical apparatus.
A VLF hipot is just an AC output tester but with an output frequency of 0.1 Hz or lower rather than 50/60Hz. Although the frequency is very low, it is still an alternating current with polarity reversals every half cycle. At 0.1 Hz output, rather than 60Hz, it takes 600 times less current and power to apply an AC voltage to a capacitive load, like a long cable.
Features:
√ Adapts microprocessor controlled, can realize voltage set-up/down, measuring and protecting automatically. Manual intervention is allowable even during the auto voltage boosting.
√ Portable, easy to move.
√ Large LCD can display waveform clearly, and test report can be printed by built-in printer.
√ The data of current, voltage, and waveform can be sampled at HV side.
√ Over voltage protectio
Certificate
- ISO
Main Products
HV Hipot Test Set System Transformer Test Equipment HV Switchgear Test