What is electrical hipot test?

The hipot test is a nondestructive test that determines the adequacy of electrical insulation for the normally occurring over voltage transient. This is a high-voltage test that is applied to all devices for a specific time in order to ensure that the insulation is not marginal.

What does Hi Pot testing mean?

The hipot test, derived from the term High Potential Test, is a direct application of a high voltage to a unit under test. The test voltage is usually much higher than the usual operating voltage in order to stress the dielectric properties of the device under test.

How does a hi pot tester work?

Hipot testing uses a high voltage source to make sure insulation is doing its job. An AC hipot test uses a voltage source that continually changes its voltage. The voltage alternates from positive to negative and back again. Generally there are 50 or 60 complete cycles of the alternating voltage each second.

Why do you need hipot testing?

Hipot testing is necessary to ensure that current flows easily from one point to another. The test verifies the integrity of the cable and its ability to withstand high voltages of a given amount of electricity.

Is hipot testing destructive?

Hipot (or high potential testing) is a non-destructive test that has many names: overvoltage testing, dielectric breakdown test, dielectric withstand test, or insulation resistance tests. A Hipot test can identify these issues before they damage the equipment or endanger an operator.

Is Hi Pot testing destructive?

Hipot (or high potential testing) is a non-destructive test that has many names: overvoltage testing, dielectric breakdown test, dielectric withstand test, or insulation resistance tests. All of these tests are designed to make sure that the insulation used in your electric motors are doing their jobs.

What is the range of high voltage?

The voltage range between 36 kV and 150 kV is referred to as the high-voltage level. The voltage range between 1 kV and 36 kV is referred to as the medium-voltage level. Any voltage below 1 kV is referred to as the low-voltage level. This is the voltage at which the electricity reaches the power sockets of households.

What is unique about high voltage testing transformer?

High Voltage Test on Transformer by exciting the secondary of the transformer from a high frequency a.c. source (100 to 400 Hz) to about twice the rated voltage. This reduces the core saturation and also limits the charging current necessary in large power transformers.

What are hi pots?

A hi-pot (a shorted way to say high potential or high voltage) is a term used for electrical safety testing instruments used to verify electrical insulation in finished appliances, cables or other wired assemblies, printed circuit boards, electric motors, and transformers.

Why do you need Hipot testing?