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A circuit breaker maintenance device

A circuit breaker and rod head technology, which is applied in the field of circuit breaker maintenance devices, can solve problems such as heavy maintenance engineering, and achieve the effects of simple operation, improved stability, and reduced wear

Active Publication Date: 2016-01-27
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are a large number of capacitor banks using ZN28E-12 vacuum circuit breakers. According to the operation requirements of power grid equipment, the capacitor bank equipment needs to be maintained and repaired every year, and the maintenance project is very heavy.

Method used

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  • A circuit breaker maintenance device
  • A circuit breaker maintenance device
  • A circuit breaker maintenance device

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Experimental program
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Effect test

Embodiment

[0024] Such as Figure 1~4 As shown, a circuit breaker maintenance device includes a rod head 1 , a rod body 2 , a positioning nut 3 and two pin washers 4 . The rod head 1 is set at one end of the rod body 2. The rod head 1 adopts a cylindrical rod head with the same diameter as the main shaft of the circuit breaker, which can increase the contact surface with the main shaft, and is not easy to cause wear on the main shaft, so as to protect the circuit breaker equipment the goal of. Moreover, the end of the rod body 2 connected to the rod head 1 is provided with a 45° chamfer, which further reduces wear on the main shaft of the circuit breaker during operation. There is a positioning hole near the rod head 1 on the shaft 2 , the positioning nut 3 passes through the positioning hole, and two pin washers 4 are arranged at both ends of the positioning nut 3 .

[0025] When performing maintenance operations, the positioning nut 3 passes through the two sockets on the port of the...

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Abstract

The invention relates to a breaker maintaining device, which comprises a rod head, a rod body, a positioning nut and two pin gaskets, wherein the rod head is arranged at one end of the rod body; a positioning hole is arranged on the rod body close to the rod head; the positioning nut penetrates the positioning hole; and the two pin gaskets are arranged at the two ends of the positioning nut. Compared with the prior art, the rod body is provided with the positioning nut which can penetrate a jack on a port of the breaker and is fixed by the pin gaskets, so that the stability of the breaker maintaining device is improved; a breaker is abraded little; and the breaker maintaining device is simple to operate, and reliable in safe performance.

Description

technical field [0001] The invention relates to a power system maintenance device, in particular to a circuit breaker maintenance device. Background technique [0002] Vacuum circuit breakers have developed vigorously in my country in the past ten years and are still in the ascendant. The products have developed from several varieties of ZN1 to ZN5 in the past to more than dozens of models and varieties now, with a rated current of 5000A, a breaking current of 50kA, and a voltage of 35kV. [0003] At present, the operating equipment of the power system grid has been replaced by advanced vacuum circuit breakers from less oil and more oil switches. The vacuum circuit breaker has good arc extinguishing ability, and the current is interrupted and the arc is extinguished by vacuum bubbles in the circuit breaker. [0004] In the new 35 kV substation and the renovation project of the old substation, the capacitor bank switch is selected as the domestic ZN28E-12 vacuum circuit bre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B3/00
Inventor 孙铮郭峰杨杰沈志祺顾坤黄晓敏张浩川査佐群瞿益斌徐俊王祥斌姜伟刘振海
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO