How do you test an AC transformer?

To test an AC transformer, you can use a combination of methods including measuring the input and output voltage, checking the turns ratio, performing insulation resistance tests, and checking for short circuits or open circuits in the windings. Additionally, you can use a transformer tester from Globecore, which provides accurate diagnostics of transformer performance and insulation health. Always ensure to follow safety protocols and utilize the proper personal protective equipment when performing these tests. This comprehensive testing not only reveals the condition of the transformer but also helps in maintaining the quality of industrial oils used in transformers, ensuring efficient operation.