热力发电
熱力髮電
열력발전
Thermal Power Generation
2015年
9期
113-116
,共4页
厂用电系统%继电保护%配置%专用主保护%后备保护%动作时间%整定计算
廠用電繫統%繼電保護%配置%專用主保護%後備保護%動作時間%整定計算
엄용전계통%계전보호%배치%전용주보호%후비보호%동작시간%정정계산
auxiliary power system%relay protection%configuration%specialized main protection%reserve pro-tection%actuation time%settings calculation
基于对厂用电系统继电保护中存在的配置不完整、后备保护动作时间过长等问题的分析，提出了配置6 kV 母线专用主保护、在低压厂用电系统变压器高压侧增加限时电流速断保护装置、优化后备保护之间配合的方案，并以此对厂用电系统的继电保护配置进行了优化，以600 MW机组为例，进行了保护整定计算，结果表明，优化后的厂用电系统继电保护配置完整，保护范围合理，后备保护动作时间显著缩短。从而，提高了厂用电系统继电保护动作的快速性和厂用电系统运行安全性。
基于對廠用電繫統繼電保護中存在的配置不完整、後備保護動作時間過長等問題的分析，提齣瞭配置6 kV 母線專用主保護、在低壓廠用電繫統變壓器高壓側增加限時電流速斷保護裝置、優化後備保護之間配閤的方案，併以此對廠用電繫統的繼電保護配置進行瞭優化，以600 MW機組為例，進行瞭保護整定計算，結果錶明，優化後的廠用電繫統繼電保護配置完整，保護範圍閤理，後備保護動作時間顯著縮短。從而，提高瞭廠用電繫統繼電保護動作的快速性和廠用電繫統運行安全性。
기우대엄용전계통계전보호중존재적배치불완정、후비보호동작시간과장등문제적분석，제출료배치6 kV 모선전용주보호、재저압엄용전계통변압기고압측증가한시전류속단보호장치、우화후비보호지간배합적방안，병이차대엄용전계통적계전보호배치진행료우화，이600 MW궤조위례，진행료보호정정계산，결과표명，우화후적엄용전계통계전보호배치완정，보호범위합리，후비보호동작시간현저축단。종이，제고료엄용전계통계전보호동작적쾌속성화엄용전계통운행안전성。
On the basis of analysis on some questions of relay protection in auxiliary power systems,like the imperfection in configuration and the actuation time is too long,a scheme was proposed for relay protection design,such as configuring a specialized main protection for 6 kV busbar,adding a time limited current fast-trip protection on the high-voltage side of low-voltage transformers in auxiliary power system,optimizing the cooperation of reserve protections and then designing the configuration of relay protection in auxiliary power system according to the optimizing rule.Taking a 600 MW unit as the example,settings calculation was carried out.The results proved that the configuration of relay protection in auxiliary power system is integrated perfectly due to the optimization,the coverage of protection is reasonable and the actuation time of reserve protection has been remarkably shortened.Thus,the actuation speed and security of the auxiliary power system are promoted.
