特高壓變壓器冷卻器電源回路分析
徐剛,劉學權(quán),吳興泉,張軍,史賢悅
(國網(wǎng)江蘇省電力有限公司檢修分公司,江蘇 南京 211102)
摘 要:主變的冷卻系統(tǒng)好壞直接關(guān)系到特高壓電網(wǎng)的安全運行。對常規(guī)的強迫油循環(huán)冷卻系統(tǒng)電源回路進行分析,提出了存在的問題,在此基礎(chǔ)上分析了某特高壓變壓器冷卻系統(tǒng)電源回路,指出了其冷卻系統(tǒng)電源回路的優(yōu)點及不足,并給出了改進措施,為變壓器冷卻系統(tǒng)的安全穩(wěn)定運行提供參考。
關(guān)鍵詞:變壓器;變電站;冷卻系統(tǒng);電源切換;故障信號;公共回路
中圖分類號:TM403 文獻標識碼:B 文章編號:1007-3175(2021)10-0039-05
Analysis of Power Supply Circuit of UHV Transformer Cooler
XU Gang, LIU Xue-quan, WU Xing-quan, ZHANG Jun, SHI Xian-yue
(State Grid Jiangsu Electric Power Co., Ltd. Maintenance Branch Company, Nanjing 211102, China)
Abstract: The cooling system of the main transformer is directly related to the safe operation of the UHV power grid.This paper analyzed the power circuit of the conventional forced oil circulation cooling system and put forward the existing problems. It analyzed the power circuit of a UHV transformer cooling system.This work indicates the pros and cons of the power circuit of the cooling system. Moreover, it gives the solutions to problems. This research provides a reference for the safe and stable operation of the transformer cooling system.
Key words: transformer; substation; cooling system; power switch; fault signal; public circuit
參考文獻
[1] 姚慧,崔遠忠,王敬. 變壓器繞組熱點溫度光纖監(jiān)測技術(shù)的研究[J]. 變壓器,2007,44(8) :64-65.
[2] 陳慶濤,石永建,鄭浩,等.220 kV 強油風冷變壓器冷卻系統(tǒng)現(xiàn)場改造方案研究[J] . 安徽電氣工程職業(yè)技術(shù)學院學報,2017,22(3) :68-73.
[3] 孫錳. 變壓器強油風冷問題與改進[J] . 變壓器,2016,53(9) :62-63.
[4] 高燃,王志鹍,闞澤,等. 大型變壓器冷控回路改造分析[J]. 貴州電力技術(shù),2015,18(2) :47-48.
[5] 高志平. 變壓器強油風冷自動切換系統(tǒng)的研究[D].天津:天津大學,2015.
[6] 任保忠,王華璽,李建超. 一種新型變壓器強油風冷控制方式[J] . 電力安全技術(shù),2016,18(6) :37-40.
[7] 李曉斌,賈義,蓋國權(quán),等. 主變壓器強油風冷信號回路改進[J] . 電子設(shè)計工程,2014,22(4) :117-119.