High Voltage Hipot Test

A dielectric strength test commonly called a hipot test dielectric withstand or high potential is a stress test of the insulation of a device under test dut.

High voltage hipot test. In the motor repair industry the test voltage commonly used is 2e 1000v. The hipot test the dielectric voltage withstand test is commonly known as the hipot test. Typically 1000v ac plus twice the normal operating voltage. Hipot test is the most common type of electrical safety test.

For a 460v motor this difference is about 200v for a 4000v motor 945v and for a. High potential hi pot dc testing guidelines for medium voltage cables photo credit. The responsible safety officer should be consulted regarding the equipment and the appropriate personnel protection requirements. Experiments and research have shown that these over voltages can be as high as 1000 v.

This formula calculates a test voltage 10 lower than the formula used in the standards. The formula for a hipot test is double the operating voltage plus 1 000v. A dielectric withstand test or pressure test high potential or hipot test is an electrical test performed on a component or product to determine the effectiveness of its insulation the test may be between mutually insulated sections of a part or energized parts and electrical ground. The test is a means to qualify a device s ability to operate safely during rated electrical conditions.

The reason for the additional 1 000v is that insulation can be subjected to various surges in day to day usage and experiments have provided clear indications that these overvoltages can be as high as 1 000v. Such a test applies a voltage to the dut that is much higher than normal operating voltage. For example if you have a wire that connects two pins the high voltage will be simultaneously apply to both of those pins and the entire wire will be raised in voltage. To hipot test a net you connect all of the contacts in the net to high voltage and connect all other contacts in the device to ground.

Performed by stressing the insulation of the product far.