A high voltage isolating switch

Abstract

The invention discloses a high-voltage disconnecting switch. A moving-end contact piece, a plurality of pairs of moving-end isolated conductive pieces, and a plurality of isolated conductive springs corresponding to the plurality of pairs of moving-end isolated conductive pieces are arranged; and rotation directions of the isolated conductive springs are opposite to each other. The conductivity and mechanical performance of the contact of the disconnecting switch are considered simultaneously and the contact pressure is compensated by using self-generation power caused by the conductivity of the isolated conductive springs fully, so that a problem of insufficient contact pressure of the high-voltage disconnecting switch is solved; and thus a phenomenon of switch fusion welding or burning caused by heating of the conductive loop contact due to the increasing of the contact resistance is avoided, so that the thermal stability of the high-voltage disconnecting switch is improved.

Description

technical field [0001] The invention relates to the technical field of high voltage switches, in particular to a high voltage isolating switch. Background technique [0002] High-voltage isolating switch is an indispensable and commonly used electrical equipment in the power system. It can play the role of isolating power supply and switching operation, and plays a very important role in the safe and reliable operation of the power system. As a basic component of high-voltage switchgear, high-voltage disconnectors should have good physical properties, mechanical properties and electrical contact properties. [0003] In the prior art, the unreasonable high-voltage isolating switch leads to insufficient contact pressure of the high-voltage isolating switch, especially the unreasonable structure of the related parts of the contact leads to insufficient contact pressure of the high-voltage isolating switch, which leads to an increase in contact resistance, resulting in the conta...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the unreasonable high-voltage isolating switch leads to insufficient contact pressure of the high-voltage isolating switch, especially the unreasonable structure of the related parts of the contact leads to insufficient contact pressure of the high-voltage isolating switch, which leads to an increase in contact resistance, resulting in the contact resistance of the conductive circuit. Heat generation, if the temperature rise exceeds the allowable value, the switch will be welded or burned, which will cause the thermal stability of the high-voltage isolation switch to fail

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