Double-knife high-voltage isolation switch

Abstract

The invention discloses a double-knife high-voltage isolation switch. The double-knife high-voltage isolation switch comprises a clamping seat, wherein isolators are symmetrically arranged at two sides of a top part of the clamping seat, contact seats are fixedly arranged at top ends of the isolators, a lock plate is arranged on each of the contact seat, a shaft rod is arranged at the middle of an upper surface of the clamping seat in an insertion way, and a knife driving device is arranged on a side wall of the shaft rod. Two S-shaped knives and two I-shaped knives are used for separately connecting or disconnecting the lock plates, and thus, current conduction can be effectively and stably controlled; by mutual matching of a driven tooth disc, a driving tooth disc and a bevel shaft, the rotation directions of the S-shaped knives are opposite, and the application of the isolation switch is facilitated; the I-shaped knives are oppositely connected with matched contact blocks by a rotation disc and by means of an eccentric moving principle, so that a virtual connection phenomenon during the usage of a single knife is effectively prevented; and by arranging a limiting pin in a pin hole, a contact pin can be effectively prevented from falling off from the pin hole.

Description

technical field [0001] The invention relates to the technical field of high-voltage equipment, in particular to a double-knife high-voltage isolating switch. Background technique [0002] The isolating switch is a switch that can carry the current under normal circuit conditions and the current under abnormal conditions within a specified time when the disconnector is in the off position. The common one is a single-knife isolating switch. The single-knife isolating switch is extremely easy to cause a virtual connection or disconnection of the line. Contents of the invention [0003] The purpose of the present invention is to provide a double-knife high-voltage isolating switch to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a double-knife high-voltage isolating switch, including a card holder, insulators are symmetrically installed on...

AI Technical Summary

Problems solved by technology

[0002] The isolating switch is a switch that can carry the current under normal circuit conditions and the current under abnormal conditions within a specified time when the disconnector is in the off position. The common one is a single-knife isolating switch. The single-knife isolating switch is extremely easy to cause virtual connection or disconnection of the line.

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