Portable heating type insulating oil breakdown voltage tester and testing method

The invention provides a portable heating type insulating oil breakdown voltage tester and a test method. The tester comprises a power supply module, a control circuit, a reversible circuit, a voltage regulator, a boost test circuit, an overcurrent protection circuit and a voltage sampling circuit which are connected in sequence. The output end of the voltage sampling circuit is connected with the input end of the control circuit; the second output end of the control circuit is connected with the data processing module, and data processed by the data processing module is output through the data output module; the heating plate is used for heating the oil cup containing the insulating oil to be detected. The tester is light in weight and easy to transport, an anti-vibration device is arranged in the tester, the tester has stability in the transportation process, the test precision is not affected by long distance and bumping, meanwhile, a heating device is additionally arranged, the purpose of boosting can be