Mutual inductor handover test device and test method thereof

The invention discloses a mutual inductor handover test device and a test method thereof. The device comprises a test wire clamp, a switching device and a tester. The test wire clamp is connected to the input end of the switching device through a test wire. A test port of the switching device is connected to the tester, the test wire clamp can clamp a screw of a secondary side terminal of the mutual inductor, the switching device is used for connecting and short-circuiting a secondary winding of the mutual inductor, and the tester comprises an insulation resistance tester, a transformation ratio tester, a mutual inductor characteristic tester and a direct-current resistance tester. According to the invention, through using the test wire clamp, the switching device and different testers, the test wire clamp is connected with the switching device, the switching device is connected to the secondary winding of the mutual inductor at a time, various tests are achieved when the mutual inductor is handed over, the f