Insulation tool for induction withstand voltage test of high-voltage end of transformer

The invention belongs to the technical field of electrical tests in the power industry, and particularly relates to an insulation tool for a transformer high-voltage end induction withstand voltage test. The device comprises a cylinder, a top end cover, a connecting bolt, an anti-explosion device, a pressure gauge, a three-way connector with a check valve, a grounding terminal, a lower flange connecting bolt, a sealing cover plate and flange structures at the two ends of the cylinder, an upper flange is fixedly connected with the top end cover through the connecting bolt, and the other end of the cylinder is connected with the sealing cover plate through the lower flange bolt. Daily sealing protection is achieved inside the cylinder body, the three-way connector with the check valve is installed on the outer wall of the cylinder body, the pressure gauge is arranged on the three-way connector with the check valve, the anti-explosion device is communicated with the cylinder body, and a base of the grounding ter