Therefore the formula in the standards for dc hipot test voltage with used motors is as seen below.
High voltage hipot test.
This formula calculates a test voltage 10 lower than the formula used in the standards.
The test is a means to qualify a device s ability to operate safely during rated electrical conditions.
Typically 1000v ac plus twice the normal operating voltage.
The hipot test the dielectric voltage withstand test is commonly known as the hipot test.
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.
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.
For a 460v motor this difference is about 200v for a 4000v motor 945v and for a.
Designed to verify that the insulation of a product is adequate enough to withstand high voltage.
The formula for a hipot test is double the operating voltage plus 1 000v.
Experiments and research have shown that these over voltages can be as high as 1000 v.
In the motor repair industry the test voltage commonly used is 2e 1000v.
The responsible safety officer should be consulted regarding the equipment and the appropriate personnel protection requirements.
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.
Performed by stressing the insulation of the product far.
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 potential hi pot dc testing guidelines for medium voltage cables photo credit.
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.
