基于永磁机构的剩余电流重合闸断路器设计  

Design of Residual Current Reclosing Circuit Breaker Based on Permanent Magnet Mechanism

作　　者：陈悟 朱菁菁 朱遵义[2] CHEN Wu;ZHU Jing-jing;ZHU Zun-yi(State Grid Jiangsu Electric Power Co.,Ltd Yangzhou Power Supply Branch,Yangzhou 225001,China;Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]国网江苏省电力有限公司扬州供电分公司,江苏扬州225001 [2]南京工程学院,江苏南京211167

出　　处：《电工电气》2021年第1期39-42,50,共5页Electrotechnics Electric

摘　　要：永磁驱动机构运动部件少、可靠性高,用于剩余电流重合闸断路器是一种创新的探索。介绍了基于永磁机构的剩余电流重合闸断路器工作原理、结构、永磁机构类型及驱动方式的选择,采用MaxweⅡ软件进行合闸机械特性、分闸机械特性的仿真优化,调整分闸弹簧、触头弹簧,使该产品的触头压力、分断速度达到一个优良的组合。经试验验证,设计的重合闸剩余电流断路器达到了高分断、高可靠、长寿命的设计要求。Permanent magnet drive mechanism has few moving parts and high reliability.It is an innovative exploration to be used in residual current reclosing circuit breaker.This paper introduces the working principle and structure of residual current reclosing circuit breaker based on permanent magnet mechanism,the selection of permanent magnetic mechanism type and driving mode.The simulation and optimization design process of closing mechanical characteristics and opening mechanical characteristics are carried out by using Maxwe II software.By adjust the opening spring and contact spring make the contact pressure and breaking speed of the product reach an excellent combination.Tests have shown that the designed reclosing residual current circuit breaker meets the design requirements of high breaking,high reliability and long life.

关 键 词：剩余电流重合闸断路器 剩余电流 永磁操动机构 可靠性 

分 类 号：TM561[电气工程—电器]