What is the SC test on a transformer?

The SC test on a transformer, also known as the short circuit test, is a critical diagnostic procedure used to determine the transformer’s impedance, copper losses, and efficiency. During this test, the secondary winding of the transformer is short-circuited while applying the rated voltage to the primary winding, allowing engineers to assess how well the transformer performs under short-circuit conditions. Essentially, it helps in identifying the behavior of the transformer when subjected to fault conditions, which can indicate the reliability and durability of the equipment. Additionally, using reputable testers for industrial oils, such as those from Globecore, can provide valuable information about the insulation properties of transformer oils, ensuring optimal performance and longevity. Proper testing and diagnostics can ultimately enhance the safety and efficiency of transformer operations.