Breaker opening sector plate device

A fan-shaped board and circuit breaker technology, applied in circuits, electrical switches, contact drive mechanisms, etc., can solve the problems of corrosion and wear of the rotating copper sleeve of the opening fan-shaped board, failure to timely and effectively remove faults, and circuit breaker leapfrog tripping accidents. , to avoid leapfrog tripping and accident expansion, improve opening reliability, and reduce maintenance costs.

Inactive Publication Date: 2017-02-08
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase of the operating life and the number of openings, the rotating copper sleeve of the opening fan-shaped plate is seriously corroded and worn, easily deformed and stuck, and the friction between the rotating copper sleeve of the opening fan-shaped plate and the passing shaft also increases. As a result, when the circuit breaker encounters a fault, it cannot be reliably opened, and the fault cannot be removed in a timely and effective manner, which will cause the circuit breaker to trip over the next level and the accident will expand

Method used

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  • Breaker opening sector plate device
  • Breaker opening sector plate device
  • Breaker opening sector plate device

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Embodiment Construction

[0021] The present invention will be further explained below in conjunction with specific embodiments and accompanying drawings.

[0022] see figure 1 and figure 2 , the present invention includes a main body 1 of a gate opening sector plate, one end of the gate sector plate main body 1 is provided with a sleeve hole, and a sleeve 2 is set through the sleeve hole, and the gate opening sector plate main body 1 and the sleeve 2 are integrated Welding fixed. A bearing 3 is arranged inside the bushing 2, and the bearing 3 is a cylindrical ball bearing. The pin shaft 4 is set through the pin shaft hole sleeve, and the two ends of the pin shaft 4 are respectively connected with a return spring 5. One end of the return spring 5 is connected with the pin shaft 4, and the other end is provided with a spring pull plate 6, and the spring pull plate 6 is fixed. on the breaker housing. The main body 1 of the opening fan-shaped plate is fastened to the opening half shaft of the circuit...

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Abstract

The invention discloses a breaker opening sector plate device, the purpose of the invention is that: when grid failure occurs, a breaker spring operation mechanism can reliably, timely and effectively remove the grid failure, and the adopted technical scheme comprises the steps: the device comprises an opening sector plate main body, a casing tube hole is arranged on one end of the opening sector plate main body, the casing tube hole sleeves a casing tube, the opening sector plate main body is fixedly connected with the casing tube, a bearing is arranged in the casing tube, a rotating shaft sleeves the bearing, and the rotating shaft is fixed to a breaker shell; a pin hole is arranged on the other end of the opening sector plate main body, the pin hole sleeves a pin, return springs are respectively connected with two ends of the pin, one end of each return spring is connected with the pin, the other end of each return spring is connected with the breaker shell, the opening sector plate main body is connected with an opening half shaft of the breaker in a fastening way, and the opening sector plate main body is connected with a breaker cam through a crank arm of the breaker.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to a circuit breaker opening sector plate device. Background technique [0002] The circuit breaker is an extremely important device in the power system. It plays a role in protection and control for the safe, stable and reliable operation of the power grid. At present, in the power grid system with a voltage level of 110kV and below, most of the circuit breaker operating mechanisms use spring operating mechanisms. It is characterized by simple structure and high reliability. In the event of a power grid fault, whether the circuit breaker can reliably open and close is inseparable from the precise cooperation between the components of the spring mechanism. However, with the increase in the operating life and the number of openings and closings, the wear and oxidation, corrosion, and stagnation between the components of the spring mechanism are serious, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/32H01H3/42
CPCH01H3/32H01H3/42H01H2003/326
Inventor 蔡震高向飞王炜韦晓辉杨瑾刘飞
Owner STATE GRID CORP OF CHINA
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