Suzhou Electric Appliance Research Institute
期刊號(hào): CN32-1800/TM| ISSN1007-3175

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斷路器本體三相不一致防誤動(dòng)優(yōu)化方案研究

來(lái)源:電工電氣發(fā)布時(shí)間:2021-11-19 10:19 瀏覽次數(shù):454

斷路器本體三相不一致防誤動(dòng)優(yōu)化方案研究

朱文吉,李新海,范德和,曾令誠(chéng),盧泳茵,林蔚,方澤彬
(廣東電網(wǎng)有限責(zé)任公司中山供電局,廣東 中山 528400)
 
    摘 要:220 kV 及以上斷路器為分相操作機(jī)構(gòu),為避免斷路器長(zhǎng)期非全相運(yùn)行,常配置斷路器三相不一致保護(hù)。介紹了斷路器三相不一致保護(hù)原理,及 220 kV 及以上斷路器本體三相不一致保護(hù)回路設(shè)計(jì),分析了斷路器本體三相不一致保護(hù)誤動(dòng)原因,提出了三條基于風(fēng)險(xiǎn)的斷路器本體三相不一致保護(hù)回路優(yōu)化方案及運(yùn)維策略。運(yùn)行結(jié)果表明,提出的三種優(yōu)化方案可有效防止斷路器本體三相不一致保護(hù)誤動(dòng),提高了本體三相不一致保護(hù)動(dòng)作可靠性。
    關(guān)鍵詞:斷路器;三相不一致;風(fēng)險(xiǎn)分析;防范對(duì)策;保護(hù)誤動(dòng)
    中圖分類(lèi)號(hào):TM561     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1007-3175(2021)11-0030-05
 
Research on Optimization of Three-Phase Inconsistency
Anti Misoperation of Circuit Breaker
 
ZHU Wen-ji, LI Xin-hai, FAN De-he, ZENG Ling-cheng, LU Yong-yin, LIN Wei, FANG Ze-bin
(Zhongshan Power Supply Bureau of Guangdong Power Grid Co.,Ltd, Zhongshan 528400, China)
 
    Abstract: 220 kV and above circuit breakers are phase separation control mechanisms. For avoiding long-time open-phase operation,three-phase inconsistent protection is used to equipped for this kind of circuit breakers. This paper introduced the theory of the three-phase inconsistent protection of circuit breaker and the design of 220 kV three-phase inconsistent protection circuit. It analyzed the reason for three-phase inconsistent protection circuit mis-operation. Three optimize plan and strategy of operation and maintenance has been proposed.The results show that the three proposes could prevent the three-phase inconsistent protection of circuit breaker misoperation. It improves the reliability of three-phase inconsistent protection.
    Key words: circuit breaker; three-phase inconsistency; risk analysis; countermeasures; protection misoperation
 
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