基于永磁機(jī)構(gòu)的剩余電流重合閘斷路器設(shè)計
陳悟1,朱菁菁1,朱遵義2
(1 國網(wǎng)江蘇省電力有限公司揚(yáng)州供電分公司,江蘇 揚(yáng)州 225001;
2 南京工程學(xué)院, 江蘇 南京 211167)
摘 要:永磁驅(qū)動機(jī)構(gòu)運(yùn)動部件少、可靠性高,用于剩余電流重合閘斷路器是一種創(chuàng)新的探索。介紹了基于永磁機(jī)構(gòu)的剩余電流重合閘斷路器工作原理、結(jié)構(gòu)、永磁機(jī)構(gòu)類型及驅(qū)動方式的選擇,采用
Maxwe Ⅱ軟件進(jìn)行合閘機(jī)械特性、分閘機(jī)械特性的仿真優(yōu)化,調(diào)整分閘彈簧、觸頭彈簧,使該產(chǎn)品的觸頭壓力、分?jǐn)嗨俣冗_(dá)到一個優(yōu)良的組合。經(jīng)試驗驗證,設(shè)計的重合閘剩余電流斷路器達(dá)到了高分?jǐn)?、高可靠、長壽命的設(shè)計要求。
關(guān)鍵詞:剩余電流重合閘斷路器;剩余電流;永磁操動機(jī)構(gòu);可靠性
中圖分類號:TM561 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2021)01-0039-04
Design of Residual Current Reclosing Circuit Breaker
Based on Permanent Magnet Mechanism
CHEN Wu1, ZHU Jing-jing1, ZHU Zun-yi2
(1 State Grid Jiangsu Electric Power Co., Ltd Yangzhou Power Supply Branch, Yangzhou 225001 ,China;
2 Nanjing Institute of Technology, Nanjing 2111 67,China)
Abstract: Permanent magnet drive mechanism has few moving parts and high reliability. It is an innovative exploration to be used inresidual current reclosing circuit breaker. This paper introduces the working principle and structure of residual current reclosing circuitbreaker based on permanent magnet mechanism, the selection of permanent magnetic mechanism type and driving mode. The simulation andoptimization design process of closing mechanical characteristics and opening mechanical characteristics are carried out by using MaxweII software. By adjust the opening spring and contact spring make the contact pressure and breaking speed of the product reach an excellentcombination. Tests have shown that the designed reclosing residual current circuit breaker meets the design requirements of high breaking,high reliability and long life.
Key words: residual current reclosing circuit breaker; residual current; permanent magnet operating mechanism; reliability
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