Multi-branch current transformer internal resistance tester

The invention discloses a multi-branch current transformer internal resistance tester, and relates to the technical field of current transformer internal resistance testing. A panel is arranged on the shell, the panel and the shell are installed in a buckled mode, and a printer hole, a test wire interface, a starting switch, a power switch, a power indicating lamp, a work indicating lamp and a display screen hole are arranged on the panel. A control module, a printer, a display screen and a power supply module are arranged in the shell; the control module comprises a control mainboard, and the control mainboard is provided with a main controller, a memory, an inverter circuit, a rectification filter circuit, an input terminal, a switching matrix, a voltage acquisition and amplification circuit and an analog-to-digital converter. The input end of the inverter circuit is connected with the power supply module, the output end of the inverter circuit is connected with the rectification filter circuit, the output