Hipot testing for insulation
Hipot Test is short name of high potential (high voltage) Test and it is also known as Dielectric Withstand Test. A hipot test checks for “good isolation.”
Hipot test makes surety of no current will flow from one point to another point.
There may be abnormal over voltage condition in the auxiliary and control supply circuits, too. Hence, the auxiliary and control circuits of breakers should also be gone through short duration power frequency voltage withstand test. Here test voltage is applied. The insulation of auxiliary and control circuit should pass this test, and there should not be any destructive discharge during the test