Short circuit alternating current terminal strip testing device

Abstract

The invention provides a short circuit alternating current terminal strip testing device which comprises an outer shell. Four insulation barriers are fixed on the inner wall of the left side of an inner cavity of the outer shell at equal interval, a wire leading device is arranged above each insulation barrier, each wire leading device comprises a connecting joint and a static contact, the static contacts are connected with the connecting joints through insulation wires, the static contacts are fixed at the right ends of the insulation barriers, and the connecting joints penetrate through the outer shell. A plurality of springs are fixed on the inner wall of the right side of the inner cavity of the outer shell at equal interval, the left ends of the springs are all connected with the right surface of a metal sheet, the left surface of the metal sheet is connected with the right end of an insulation reset rod, and the left end of the insulation reset rod penetrates through the outer shell. The upper surface and the lower surface of the outer shell are respectively provided with a bolt. The short circuit alternating current terminal strip testing device is simple in structure and low in cost, can be flexibly suitable for various current secondary circuit wire connection modes and greatly improves the personal safety and the work efficiency of workers.

Description

technical field [0001] The invention relates to an electric equipment maintenance device, in particular to a test device for short-circuiting AC terminal blocks. Background technique [0002] In daily practical work, we often encounter the need to change the CT secondary circuit with electricity (the primary equipment is not powered off) to achieve the purpose of changing the ratio or polarity of the secondary winding. The current loop is short-circuited with a current link. Due to the high voltage and arc that may be generated during the short-circuiting process, the current loop will be poorly sealed due to manual error or tension, and the current terminal will be pulled. The arc burns the terminal block or the insulation of the terminal block is reduced, and the staff directly faces the high voltage generated by the open circuit of the secondary circuit, which also causes great harm to the person and equipment. During the sealing process, the protection of the secondary c...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned defects in the prior art, the present invention provides a test device for short-circuiting the AC terminal block, which solves the problems of the existing device such as small adaptability, low efficiency, and poor safety

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