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

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主變倒送電帶負(fù)荷校驗(yàn)方案及試驗(yàn)分析

來(lái)源:電工電氣發(fā)布時(shí)間:2019-02-19 09:19 瀏覽次數(shù):764
主變倒送電帶負(fù)荷校驗(yàn)方案及試驗(yàn)分析
 
唐海燕
(中核集團(tuán)三門(mén)核電有限公司,浙江 臺(tái)州 317112)
 
    摘 要:針對(duì)三門(mén)核電廠2 號(hào)機(jī)組主變倒送電期間帶負(fù)荷校驗(yàn)需要,在分析廠內(nèi)負(fù)荷使用的情況下,提出利用一次通流、租賃負(fù)荷的方式進(jìn)行差動(dòng)保護(hù)CT極性的校驗(yàn)??紤]現(xiàn)場(chǎng)布置、電纜端接、保護(hù)配合等,并結(jié)合主變高壓側(cè)CT完成校驗(yàn)需要54.56 MVA負(fù)荷容量的要求,給出負(fù)荷校驗(yàn)方案。試驗(yàn)結(jié)果表明,該方案實(shí)現(xiàn)了主變差動(dòng)保護(hù)的校驗(yàn),未產(chǎn)生諧振,電壓抬升在可控范圍內(nèi)。
    關(guān)鍵詞:倒送電;通流;電容器;帶負(fù)荷校驗(yàn)
    中圖分類(lèi)號(hào):TM623;TM77     文獻(xiàn)標(biāo)識(shí)碼:B     文章編號(hào):1007-3175(2019)02-0052-04
 
On-Load Protection Verification Scheme of Inversely Feeding of Main Transformer and Test Analysis
 
TANG Hai-yan
(Sanmen Nuclear Power Company Limited, Taizhou 317112, China)
 
  Abstract: In allusion to the on-load protection verification requirement during the time of inversely feeding of unit 2 main transformer in Sanmen nuclear power station, under the conditions of analyzing the station interior load usage, this paper proposed to use the mode of through-flow one time and lease load to carry out verification of differential protection CT polarity. Considering the site layout, cable termination and relay cooperation, and combined with the main transformer CT at high-voltage side, the on-load protection verification scheme met the requirement of needed load capacity 54.56 MVA. The results show that this scheme realizes the verification of differential protection of main transformer. There is no resonance and the voltage rising is within limit.
  Key words: inversely feeding; through-flow; capacitor; on-load verification
 
參考文獻(xiàn)
[1] 張凱.AP1000核電廠倒送電期間保護(hù)校驗(yàn)方法[J]. 電工技術(shù),2014(4):5-6.
[2] 徐瑩琳,林羅波,崔超,等.110 k V倒送電帶負(fù)荷校驗(yàn)實(shí)例分析[J]. 電工電氣,2017(3):49-52.
[3] 唐海燕. 2 號(hào)機(jī)輔變倒送電帶負(fù)荷校驗(yàn)方案及試驗(yàn)分析[J]. 電工電氣,2016(4):36-39.