50kv Vlf Very Low Frequency Ac High Voltage Test Instrument For Testing High Voltage Cables

Our offered range of 50KV VLF Very Low Frequency Ac High Voltage Test Instrument For Testing High Voltage Cables is available with following specifications :-

Sandi VLF testing is used for any application requiring AC testing of high capacitance loads. The major application is for testing solid dielectric cable, followed by testing large rotating machinery, and occasionally for testing large insulators, arrestors, and the like.
Even if a utility doesna t adopt Sandi VLF for widespread cable testing, one of the best reasons to use VLF is to check installation quality and accessories, like splices. Many failures are due to damage during installation, improper workmanship, and/or insulation damage caused by excessive voltage fault locating - thumping. At the very least, every newly installed or repaired cable should be Sandi VLF tested before re-energizing.

* Portable and affordable.
* All models feature is true sine wave output.
* Waveform is independent of load capacitance between 0.01mF and maximum load.
* Highest load ratings available.
* Highest voltage models available.
* Simple and easy operation.
* AC testing does not degrade good cable insulation.
* Harmful space charges are not injected into the cable insulation.
* No traveling waves are generated during testing.
* Rugged and reliable design less prone to failure from transients.
* No polarization effects as with DC.
* Breakdown detection.