What types of hipot tests are there?

Hipot Test, or withstand voltage test, can be mainly divided into the following two types according to its characteristics and applications:

1. AC Withstanding Voltage Test

AC withstand voltage test is a high-voltage test of electrical equipment or insulating materials using an AC power supply. During the test, the AC voltage gradually increases to a predetermined value and is maintained for a period of time to check the insulation performance of the equipment or material under high voltage. This type of test can simulate the AC voltage conditions that the equipment may encounter in actual use, thereby evaluating its safety and reliability.

2. DC Withstanding Voltage Test

DC withstand voltage test is a high-voltage test using a DC power supply. Similar to the AC withstand voltage test, the DC voltage is also gradually increased to a predetermined value and maintained for a period of time to check the insulation performance. The DC withstand voltage test may be more sensitive in detecting tiny defects in insulating materials because it can avoid the capacitive and inductive effects that may be encountered in AC testing.

In summary, hipot tests mainly include two types: AC withstand voltage test and DC withstand voltage test. These two test methods have their own advantages, and which type to choose depends on the specific test requirements and equipment characteristics. In practical applications, it is necessary to determine appropriate test methods and parameters based on factors such as the rated voltage of the equipment, the type of insulation material, and the test standard.