Why We Need Do Transformer Oil Breakdown Voltage Test?

Transformer oil mainly plays a role of insulation and cooling during the operation of power transformers. Therefore, transformer oil must have a certain electrical insulation strength during the operation of power transformers. In order to ensure the safe and reliable operation of power transformers, in addition to taking corresponding protective measures to prevent premature oil aging, it is also necessary to regularly take oil samples for corresponding tests to know the oil quality of power transformers during operation status. And for newly installed power transformer. Sampling tests should also be carried out before the new operation. The breakdown voltage test of power transformer oil is a very important item among many oil tests of power transformers.