Multi-section pneumatic isolating switch

Abstract

The invention relates to a multi-section pneumatic disconnecting switch. The multi-section pneumatic disconnecting switch comprises a support shaped like a Chinese character 'mi', a lower flange, a top flange, a bus, a static contact, a moving contact, a flexible connector, an air cylinder and pressure equalizing covers, wherein the lower flange, the top flange, the bus and the static contact are fixed to the support shaped like the Chinese character 'mi', the moving contact and the static contact are connected or disconnected, the pressure equalizing covers are buckled above the static contact and the moving contact. The air cylinder is a multi-section air cylinder, the bus is connected with the flexible connector, the other end of the flexible connector is connected with the moving contact, the flexible connector is fixed to limiting rings and nodes of the air cylinder section by section, the portion, on the periphery of the air cylinder, of the flexible connector drives the flexible connector to rise when the switch is switched on and is arranged at the lower portion of the moving contact section by section in a folded mode when the switch is switched off, and the pressure equalizing covers are buckled above the moving contact and the static contact respectively. The switch further comprises a mechanical control valve for leading out a switch-on signal and a switch-off signal of the switch. The multi-section pneumatic disconnecting switch can remarkably improve the insulation level of the disconnecting switch and solve the problems that the switch is not switched on in place and whether switch-on and switch-off are conducted in place or not can not be effectively judged when an existing disconnecting switch is remotely operated in a control room, and has the advantage of being high in arc resistance.

Description

technical field [0001] The invention belongs to the technical field of electric equipment, and in particular relates to a multi-section pneumatic isolating switch. Background technique [0002] When the reactor is running, it will generate a strong magnetic field, and the instantaneous voltage is very high, so there are special requirements for the isolating switch device in the reactor product. Due to the distribution principle of the magnetic force line, the magnetic induction of its center line position is the smallest, so the switch It must be installed in the center of the reactor, but it is currently used for the isolating switch in the reactor. When the reactor line is running, because the air motor is used to carry the conductor, and the insulating tube is used as a guide, the fracture of the isolating switch There is always an organic insulator, the electrical performance of this insulator is far inferior to that of air as the medium, and the current isolating switc...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-section pneumatic isolating switch for the shortcomings of the prior art, which can significantly improve the insulation level of the isolating switch and solve the problem that the current isolating switch cannot be effectively operated remotely in the control room. Judging whether the opening and closing are in place, the multi-section pneumatic isolating switch has the advantage of strong arc resistance

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