In order to improve the efficiency of power supply and reduce the workload of pre-test staff, the power system has begun to carry out extensive inspections of live equipment. With the development and progress of power system testing technology, live inspection and online monitoring have become the development trend of power equipment inspection. In line with the development direction of testing technology, our company has set up a professional live equipment inspection service team, focusing on providing electricity companies with live equipment inspection and operating status diagnosis services.