Optimum Design of the Closing Cam in Spring Operating Mechanism of High-voltage Circuit Breaker

GUO Liangchao; HAN Guohui; LIU Yu; SONG Guangmin; LIU Yu; HUI Yongfeng; LI Meirong

doi:10.13296/j.1001-1609.hva.2019.10.003

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Optimum Design of the Closing Cam in Spring Operating Mechanism of High-voltage Circuit Breaker

更新时间：2025-04-26

- Optimum Design of the Closing Cam in Spring Operating Mechanism of High-voltage Circuit Breaker
- High VoltageApparatus Vol. 55, Issue 10, Pages: 13-18(2019)
- 作者机构：
  
  平高集团有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.10.003
  CLC： TM561
- Published：2019
- 稿件说明：
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[1]郭良超,韩国辉,刘宇,宋广民,刘煜,惠勇锋,李美荣.高压断路器弹簧操动机构合闸凸轮优化设计[J].高压电器,2019,55(10):13-18.

GUO Liangchao, HAN Guohui, LIU Yu, et al. Optimum Design of the Closing Cam in Spring Operating Mechanism of High-voltage Circuit Breaker[J]. High voltageapparatus, 2019, 55(10): 13-18.
[1]郭良超,韩国辉,刘宇,宋广民,刘煜,惠勇锋,李美荣.高压断路器弹簧操动机构合闸凸轮优化设计[J].高压电器,2019,55(10):13-18. DOI： 10.13296/j.1001-1609.hva.2019.10.003.

GUO Liangchao, HAN Guohui, LIU Yu, et al. Optimum Design of the Closing Cam in Spring Operating Mechanism of High-voltage Circuit Breaker[J]. High voltageapparatus, 2019, 55(10): 13-18. DOI： 10.13296/j.1001-1609.hva.2019.10.003.

摘要

合闸凸轮作为高压断路器弹簧操动机构的核心零部件

其轮廓曲线直接决定着断路器的机械特性。传统的合闸凸轮设计方法是依据断路器合闸行程曲线

反推出凸轮的轮廓曲线。这种方法设计出的凸轮存在动力特性无法准确匹配负载特性、轮廓曲线需要反复试验修正等不足。文中阐述了一种合闸凸轮的优化设计方法

根据该方法设计出的合闸凸轮

动力特性与负载特性匹配性好

输出效率高。最后通过仿真验证和样机试验

证明了该优化设计方法的可行性。

Abstract

As the core component of spring operating mechanism of a high-voltage circuit breaker

the closing cam’s contour curve directly determines the mechanical characteristics of the circuit breaker. In the conventional design method of the cam

the cam’s contour curve is derived reversely according to the closing stroke curve of circuit breaker. However

the closing cam designed by this method contains the defects that the cam’s dynamic characteristics cannot accurately match the load characteristics

and its profile curve needs repeated tests and modification. In this paper

an optimum design method of closing cam is proposed. The closing cam designed with the proposed method has good dynamic characteristics and high output efficiency. Simulation and prototype test verify the feasibility of the optimum design method.

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