Power transformers are used in the high voltage transmission network to step up and step down the voltage. These transformers should be test periodically in order to check whether the transformer is working in proper condition or not. For testing the power transformer there are various tests are conducted such as Ratio test, Vector group test, Core balance test. Short circuit test. To perform each test there are large numbers of meters and equipment are used. Each reading should be noted manually which wastes more amount of time. To avoid these problems testing kit is used to perform all the test where the readings are in digital and communication is also enabled.