What is the power frequency withstand test?
The power-frequency withstand test is a crucial test for high-voltage electrical equipment. This test is performed by the IEC 60060-1 standard. The aim of this test is to evaluate the ability of the equipment to withstand voltage stress when it is operating at its rated level.
The test is typically carried out on transformers, circuit breakers, and instrument transformers. The test involves applying a voltage to the equipment, which is gradually increased up to a set level. The voltage is then held for a certain period, typically one minute, after which it is reduced to zero. The equipment must be able to withstand this voltage without suffering any damage or failure.
How to perform the power frequency withstand test?
Performing the power-frequency withstand test requires specialized equipment, such as a high-voltage test set. The test is typically carried out in a laboratory or test field, where safety precautions must be taken to prevent any accidents. Testing must be conducted by trained personnel who understand the risks and hazards of high-voltage testing.