Automatic megohmmeter of multiple branch circuit

The utility model provides an automatic megohmmeter of multiple branch circuit, including the DCDC power conversion module, signal acquisition circuit, single chip microcomputer control processing module, the megohmmeter control circuit that are used for the power supply, DCDC power conversion module, signal acquisition circuit, megohmmeter control circuit all are connected with single chip microcomputer control processing module, signal acquisition circuit gathers equipment under test measurement circuit's electric current and conveys the single chip microcomputer control processing module judgement of insulating, megohmmeter control circuit extends 1 test branch road of former megohmmeter and is 12 test branch roads, and the break -make of test branch road is controlled by single chip microcomputer control processing module. The utility model discloses can carry out the insulation measurement to the branch road no longer than 12 simultaneously. 本实用新型提供了种多支路自动兆欧表，包括用于供电的DC/DC电源转换模块、信号采集电路、单片机控制处理模块、兆欧表控制回路，D