Gas-insulated switch gear using dual motion with multi-lever

Abstract

The present disclosure may allow the movable base and the second movable contact driven in a dual-motion manner to be connected by a plurality of levers, and a force transferred to the movable base while the plurality of levers are in close contact with one another or released from the close contact may be transferred to the second movable contact, and thus a size of the levers may not be requiredto increase even when a stroke ratio between the movable base and the second movable contact increases, thereby having an effect capable of minimizing a size of the gas circuit breaker as well as appropriately controlling a stroke ratio between the movable base and the second movable contact.

Description

technical field [0001] The present disclosure relates to dual motion gas insulated switchgear with multiple levers, and more particularly to multiple levers with controllable operating time for closing or opening and reducing the size of gas circuit breakers and allowing longer strokes Double action gas insulated switchgear. Background technique [0002] In recent years, power stations and the like have widely used gas insulated switchgear (GIS) that uses sulfur hexafluoride (SF6) gas having high insulation resistance in switchgear constituting high-voltage substation facilities. [0003] Gas-insulated switchgear as a power device is used for switching, grounding, branching and monitoring of high-voltage circuits in the range of thousands to tens of thousands of volts in power transmission, transformation and large-scale power distribution systems. The gas-insulated switchgear is a combination of switches and The earthing device is housed in a tank filled with an insulating...

AI Technical Summary

Problems solved by technology

[0015] However, in the case of a fork-type gas insulated switchgear, when the movable base 31a moves, a strong impact may be caused between the protruding portion 31a-1 and the protruding portion 31c-1 of the rod 31c, whereby when used for a long time The problem that the collision part is easy to be damaged in a short period of time

[0016] On the other hand, as Figure 7 As shown in , even in the case of a gas insulated switchgear with a lever type double movement mode, when the stroke ratio between the movable base 51 and the second movable contact 53 is set to 1:1, 1:2, 1:3, etc., which can be adjusted only by the length of the rod 55, and thus, when the stroke ratio between the movable base 51 and the second movable contact 53 connected to the rod 55 increases relatively, the The size will increase, thereby causing the problem of an overall increase in the size of the gas circuit breaker

[0017] In addition, since the second movable contact 53 will move without a predetermined delay time when the movable base 51 moves, the second movable contact 53 may not be moved only when a closing or opening operation is required, by This creates a problem of not distributing energy for closing or opening, thus causing a problem of significantly reducing energy efficiency and deteriorating opening performance

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