1 000 kV特高壓串補控保系統(tǒng)CT取能異常分析
劉天佑,黃健金,張文杰,王恩鋼,畢凱,賀盼盼
(國網河南省電力公司檢修公司,河南 鄭州 450052)
摘 要:基于特高壓南陽站長南Ⅰ線串補控保B系統(tǒng)CT取能異常事件,分析了特高壓串補控制保護系統(tǒng)組成及平臺測量箱的取能方式,對事件概況及現(xiàn)場情況進行了描述,通過理論分析和現(xiàn)場檢查,指出此次事故的原因是串補平臺上CT取能系統(tǒng)故障導致非功能性切換為地面激光送能。通過此次分析為其他廠站處理類似問題積累了理論基礎和實際經驗。
關鍵詞:串補平臺;CT取能;地面激光送能
中圖分類號:TM721.2 文獻標識碼:B 文章編號:1007-3175(2019)09-0039-04
Abnormal Analysis of CT Energy Absorption of 1 000 kV UHV Series Compensation Control and Protection System
LIU Tian-you, HUANG Jian-jin, ZHANG Wen-jie, WANG En-gang, BI Kai, HE Pan-pan
(Maintenance Company of Henan Electric Power Corporation, Zhengzhou 450052, China)
Abstract: Based on the UHV Nanyang Station Changnan line series compensation control B system CT energy anomaly event, this paper analyzed the composition of UHV series compensation control and protection system and the energy-receiving mode of platform measuring trunk, and described the event survey and local situation. Through theoretical analysis and on-site inspection, it is pointed out that the cause of the accident is that the CT energy-carrying system failure on the series-compensated platform causes non-functional switching to ground laser energy transmission, which accumulates the theoretical and practical experience for the similar problems processed in other working station.
Key words: series compensation platform; CT energy-receiving; ground laser sending energy
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