Isolating switch capable of replacing contacts with electricity and special tools for replacing contacts

Abstract

The invention discloses an isolation switch capable of on-live contact replacement. The isolation switch comprises a conductive arm and a contact, wherein the conductive arm is connected with the contact, a hook suspension shaft is arranged at the upper part of a contact end of the conductive arm along the width direction of the contact end, a latch hook fixing shaft is arranged at the lower part of the contact end of the conductive arm along the width direction of the contact end, the conductive arm and the contact are connected by a hook, the hook is fixed on the contact and comprises an upper hook and a lower hook, openings of the upper hook and the lower hook are in vertical correspondence, the upper hook is suspended on the hook suspension shaft, a latch hook sleeves the latch hook fixing shaft along the axial direction of the latch hook fixing shaft, the latch hook comprises a hook and a handle, the hook and the handle are fixedly connected at an acute angle, the handle passes through the lower part of the conductive arm and extends, the handle is an insulation body, the hook of the latch hook faces downwards, and the hook of the latch hook is engaged with the lower hook of the hook. The invention also discloses a special tool for contact replacement of the isolation switch. When the contact of the isolation switch is replaced, outage operation is not needed, and the isolation switch is convenient to maintain, and is high in efficiency and high safety.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to an isolating switch capable of replacing contacts with electricity, and also relates to a special tool for replacing contacts. Background technique [0002] GW4 type isolating switch is a device used to isolate high-voltage electrical equipment. Each single pole of the isolating switch is composed of a base, a post insulator, a conductive arm and other parts, and the two post insulators are installed parallel to each other on the base. On the bearing seats at both ends of the seat, and perpendicular to the base, the conductive arm is installed above the two post insulators, and rotates about 90° with the post insulators. [0003] Since the concave contacts and convex contacts fixed on the conductive arm are exposed to the air for a long time, they are easily corroded by nature and cause the contact resistance to increase and generate heat. Therefore, they need to be re...

AI Technical Summary

Problems solved by technology

[0005] Although such a structure is relatively simple, it is necessary to cut off the power first when carrying out the inspection and maintenance of the concave and convex contacts, and then climb to the isolation switch structure to loosen the bolts to repair or replace the contacts; not only is it cumbersome, but also Affect the normal operation of the power supply line

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