dc hipot test

krulazmi said:

I'm doing testing on power cable (hibrid - XLPE to ABC), if I what to do DC hipot test what is the value of the injected DC voltage.
system voltage is 11kv

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There are a few standards, IEEE 400 and 576, ICEA, and NETA. None of them recommends a DC hipot test on service aged (>5 years old) MV cables, it is considered a destructive test. Even for new installations a DC hipot test will only find "gross installation defects".

As far as test voltages go, it depends on what method you use to determine your different test voltages and intervals, the insulation type and ratings also determine the test voltages. You also need to understand corona supression methods and safety precautions.

MV cable testing should be done using either AC hipot (Power frequency or VLF), Tan Delta, or Partial Discharge testing methods.

Honestly, if you are asking these questions you shouldnt be doing the testing, you should hire a certified testing company to do MV cable testing, you can fond one in your area at

There are a few standards, IEEE 400 and 576, ICEA, and NETA. None of them recommends a DC hipot test on service aged (>5 years old) MV cables, it is considered a destructive test. Even for new installations a DC hipot test will only find "gross installation defects".As far as test voltages go, it depends on what method you use to determine your different test voltages and intervals, the insulation type and ratings also determine the test voltages. You also need to understand corona supression methods and safety precautions.MV cable testing should be done using either AC hipot (Power frequency or VLF), Tan Delta, or Partial Discharge testing methods.Honestly, if you are asking these questions you shouldnt be doing the testing, you should hire a certified testing company to do MV cable testing, you can fond one in your area at www.netaworld.org

Want more information on 120KV DC hipot tester? Feel free to contact us.

A DC hipot tester, also known as a dielectric voltage withstand tester, determines the safety of a product or electrical component. Insulation may break down due to moisture, aging, vibration, wear, or a variety of other reasons, so these testers are needed to analyze the amount of current leakage.

Whether to use a DC hipot or an

A DC hipot tester produces a high potential (voltage) electrical current to test the insulation of an electrical component. Hipot tests are performed on components like transformers, electrical motors, and printed circuit boards; in other words, devices which require insulation to be effective.A DC hipot tester, also known as a dielectric voltage withstand tester, determines the safety of a product or electrical component. Insulation may break down due to moisture, aging, vibration, wear, or a variety of other reasons, so these testers are needed to analyze the amount of current leakage.Whether to use a DC hipot or an AC hipot depends on the DUT. Anything connected to a grid requires AC; meanwhile, battery-powered equipment or digital logic circuits fall under DC. Many devices use both AC and DC, and so need both types of hipot testing performed.

For more information, please visit 240KV DC hipot tester.