What is a hi pot test?
Hipot test is the most common type of electrical safety test. Designed to verify that the insulation of a product is adequate enough to withstand high voltage. Performed by stressing the insulation of the product far beyond what it would encounter during normal use.
What is hi pot test of transformer?
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 is the standard for hipot test?
Tests of Used Motors: For proof tests of of used motors, the standards stipulates that an AC voltage Hipot test ranging from 125% to 150% of the rated RMS line-to-line voltage, equivalent to about 65% to 75% of 2E+1000 V, has proven to be adequate.
How does a hi pot test 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.
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. All of these tests are designed to make sure that the insulation used in your electric motors are doing their jobs.
What is the meaning of hi pot?
High Potential
Hi-Pot is the abbreviation for High Potential, and generally refers to the high voltages used to test dielectric withstand capability for regulatory agency electrical safety requirements.
How is hipot test voltage calculated?
HIPOT test is applied after tests such as fault condition, humidity, and vibration to determine whether any degradation has taken place. As per IEC 60950, The Basic test Voltage for Hipot test is the 2X (Operating Voltage) + 1000 V.
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.
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.
What are the standards for Hi Pot testing?
However, the standards state that production hi-pot testing should not exceed 1,500VAC, or its DC-rectified equivalent of 2,121VDC, from input to output or input to ground.
What are the IEC standards for medical equipment?
The IEC61010 standard applies to test and measurement equipment and also requires the 3kVAC test. Medical equipment is covered by standard IEC60601-1. Input-to-output isolation tests need to be conducted at the higher voltage of 4kVAC in order for the design to comply with this standard.
What’s the difference between hipot and Hi-Pot test?
Hi-Pot test is a contraction for high potential HV testing. 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. Hipot test is the opposite of a continuity test.
What should the voltage be for a hipot test?
IEC recommended test voltage for hipot test As per IEC 60950, The Basic test Voltage for Hipot test is the 2X (Operating Voltage) + 1000 V. The reason for using 1000 V as part of the basic formula is that the insulation in any product can be subjected to normal day-to-day transient over voltages.