Hipot Test is a high voltage test that is used to check the integrity of insulation for high voltage equipments such as busbars, cables, motors etc. The term 'Hipot' is the shortened form of High Potential. The Hipot test is used to ensure that an insulation can withstand a high potential without risk of failure.The Hipot test is alternatively known as Dielectric Withstand test. The test involves the application of a high voltage usually about two times the
operating voltage. Thus a 6.6kV equipment will be tested at a voltage of 13kV.
The test is conducted for 1 minute to five minutes. If the hipot test is conducted on a transformer winding or an alternator winding, the test is conducted on individual phases. The phases are separated and those phases which are not subjected to the hipot voltage are grounded.
operating voltage. Thus a 6.6kV equipment will be tested at a voltage of 13kV.
The test is conducted for 1 minute to five minutes. If the hipot test is conducted on a transformer winding or an alternator winding, the test is conducted on individual phases. The phases are separated and those phases which are not subjected to the hipot voltage are grounded.
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