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

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一臺干式配電變壓器線圈匝間短路事故分析

來源:電工電氣發(fā)布時間:2016-06-01 09:01 瀏覽次數(shù):7
一臺干式配電變壓器線圈匝間短路事故分析
 
楊宇峰1,黨彤2,郭小梅3,尤靈偉4
(1 浙江新能量科技股份有限公司,浙江 杭州 310005;
2 西安石油大學(xué) 理學(xué)院,陜西 西安 710300;
3 陜西華電蒲城發(fā)電有限責任公司,陜西 蒲城 715501;
4 杭州交聯(lián)電氣工程有限公司,浙江 杭州 310011)
 
    摘 要:介紹了一臺干式變壓器短路事故,運用相關(guān)電路原理和極限等數(shù)學(xué)方法對單相線圈事故狀態(tài)下電阻變化的幾種可能性進行了理論分析,并將事故變壓器測量數(shù)據(jù)和理論分析相結(jié)合進行驗證,進而對變壓器事故狀況進行了定性評判,該案例分析方法亦可為同類事故的分析提供技術(shù)和案例參考。
    關(guān)鍵詞:線圈;直流電阻;短路;開路
中圖分類號:TM412 文獻標識碼:A 文章編號:1007-3175(2016)05-0039-03
 
Analysis on Turn-to-Turn Short-Circuit Accident of Dry-Type Distribution Transformer
 
YANG Yu-feng1, DANG Tong2, GUO Xiao-mei3, YOU Ling-wei4
(1 Zhejiang Fresh Power Science and Technology Co., Ltd, Hangzhou 310005, China;
2 Faulty of Science, Xi'an Shiyou University, Xi'an 710300, China;
3 Shanxi Huadian Pucheng Power Co., Ltd, Pucheng 715501, China;
4 Hangzhou Jiaolian Electric Engineering Co., Ltd, Hangzhou 310011 , China)
 
    Abstract: Introduction was made to a dry-type distribution transformer short-circuit fault. This paper used the relevant circuit principle and limitation etc mathematical methods to carry out theoretical analysis for several kinds of possibilities of resistance variation under single phase coil faults state. The measured data of accident transformer were combined with theoretical analysis to carry out verification and to qualitativly judge the transformer accident state. This method of case analysis could provide technology and case references for the similar accidents.
    Key words: coil; direct current resistance; short circuit; open circuit
 
參考文獻
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