spring operating mechanism for gis circuit breaker

Abstract

The invention relates to a spring operating mechanism for a GIS breaker, and aims at providing a breaker operating mechanism which is compact in structure, reasonable in layout and flexible to control. The spring operating mechanism comprises a first spring case, a second spring case and a double-sided clamping plate, wherein a closing spring and an opening spring are hinged with the upper ends of an energy storage spring pressure arm and an opening spring pressure arm respectively; an energy storage spring ratchet wheel is arranged at one side of the double-sided clamping plate, and is connected with an energy storage driving crank arm through an energy storage driving link; the top end of the energy storage driving crank arm is hinged with the outer wall of the double-sided clamping plate; a drive motor is connected with the energy storage ratchet wheel through a transmission device; a cam is arranged at the other side of the double-sided clamping plate; the rear end of a first breaking link at the lower part of the cam is hinged with the outer wall of the double-sided clamping plate; the front end of the first breaking link is hinged with a breaking crank arm through a second breaking link; the top end of the breaking crank arm is hinged with the outer wall of the double-sided clamping plate; and locking devices are arranged at two sides of the double-sided clamping plate respectively.

Description

technical field [0001] The invention relates to the field of switchgear, in particular to a spring operating mechanism for a GIS circuit breaker. Background technique [0002] In the 110KV and 220KV high-voltage GIS products, the mechanism equipment used for the operation switch closing and closing used the pneumatic mechanism and some hydraulic mechanisms produced by Hitachi or Mitsubishi in Japan, because the structure of the mechanism is complex, and an air compressor is required Auxiliary equipment such as, are gradually replaced by novel spring mechanism, but novel spring mechanism is expensive, and cannot maintain, is the unavoidable drawback of this field. Although some domestic mechanism manufacturers have imitated and used these spring mechanisms to temporarily meet the needs of domestic GIS products, they have disadvantages such as complex structure, strong process performance, high manufacturing cost, and unstable technical parameters. In the use of power systems...

AI Technical Summary

Problems solved by technology

[0002] In the 110KV and 220KV high-voltage GIS products, the mechanism equipment used for the operation switch closing and closing used the pneumatic mechanism and some hydraulic mechanisms produced by Hitachi or Mitsubishi in Japan, because the structure of the mechanism is complex, and an air compressor is required Auxiliary equipment such as auxiliary equipment is gradually replaced by a new type of spring mechanism, but the new type of spring mechanism is expensive and cannot be repaired, which is an unavoidable drawback in this field

Although some domestic mechanism manufacturers have imitated and used these spring mechanisms to temporarily meet the needs of domestic GIS products, they have disadvantages such as complex structure, strong process performance, high manufacturing cost, and unstable technical parameters.

In the use of power systems, many problems have arisen. At present, some large foreign companies have also designed and produced a variety of new spring mechanisms, but most of them have complex structures and high technical requirements, and it is difficult to imitate them in China.

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