The comprehensive test bench conforms to GB/T4776, GB/T5169, GB/4285-1993 and other relevant national standards. The test bench is mainly used to test the no-load and load characteristics of power transformer and distribution transformer, and also to test the frequency doubling induction and power frequency voltage resistance of the transformer. The measuring part of the device is controlled by high-end single chip microcomputer, digital display, no-load, short circuit and other test data are sampled synchronously by single chip microcomputer, avoiding the error caused by manual calculation in the traditional test method of voltage, ammeter and power meter reading respectively. This set of equipment is suitable for power transformer production and maintenance department for 5000kVA/36-10KV and below capacity of three-phase transformer factory test and conventional test. Simple operation, accurate measurement, reliable operation.