Analysis and Improvement for Close-hold and Open-release System in Spring Operating Mechanism

ZHANG Qiang; SU Jufang; DENG Hongxiang; DANG Dewang; LIU Chao

doi:10.13296/j.1001-1609.hva.2015.12.031

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Analysis and Improvement for Close-hold and Open-release System in Spring Operating Mechanism

更新时间：2025-04-26

- Analysis and Improvement for Close-hold and Open-release System in Spring Operating Mechanism
- High VoltageApparatus Vol. 51, Issue 12, Pages: 179-183(2015)
- 作者机构：
  
  西安西电开关电气有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.12.031
  CLC： TM561
- Published：2015
- 稿件说明：
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[1]张强,苏菊芳,邓洪祥,党德旺,刘超.一种弹簧机构中合闸保持分闸脱扣系统的改进[J].高压电器,2015,51(12):179-183.

ZHANG Qiang, SU Jufang, DENG Hongxiang, et al. Analysis and Improvement for Close-hold and Open-release System in Spring Operating Mechanism[J]. High voltageapparatus, 2015, 51(12): 179-183.
[1]张强,苏菊芳,邓洪祥,党德旺,刘超.一种弹簧机构中合闸保持分闸脱扣系统的改进[J].高压电器,2015,51(12):179-183. DOI： 10.13296/j.1001-1609.hva.2015.12.031.

ZHANG Qiang, SU Jufang, DENG Hongxiang, et al. Analysis and Improvement for Close-hold and Open-release System in Spring Operating Mechanism[J]. High voltageapparatus, 2015, 51(12): 179-183. DOI： 10.13296/j.1001-1609.hva.2015.12.031.

摘要

由于弹簧操动机构具有诸多使用优点

以前在126 kV及以下电压等级断路器中大量配用

其运行可靠

用户评价良好

随着断路器开断容量及配用产品电压等级的进一步提升

配用机构要求具有更大操作功。但机构操作冲击随之加大

其合闸保持分闸脱扣系统可靠性降低

应用中偶尔出现"合后即分"现象。笔者介绍了一种改进后的合闸保持分闸脱扣系统

进行了仿真分析

并完成了多台试验样机机械寿命试验测试

充分验证了该结构的可靠性及稳定性

将其在CT20弹簧操动机构中推广应用。

Abstract

The spring operating mechanism has been widely used for circuit breaker below 126 kV voltage thanks to many advantages. It has reliable operation and is favorably accepted by client. With further increase in break capacity of circuit breaker and voltage of using product

it needs too much more operating power for mechanism

which results in much more impact force

so that reliability of system is reduced

namely it most likely occurred in application that the circuit breaker is opened instantly after close operation. The paper presents an improved system with close-hold and open-release. The simulation analysis is implemented and mechanical endurance tests on more prototypes are completed. Test result shows that its construct is reliable and stable. So the system is widely used for CT20 spring operating mechanism.

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