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

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一台干式配电变压器线圈匝间短路事故分析

来源:电工电气发布时间:2016-06-01 09:01 浏览次数:7
一台干式配电变压器线圈匝间短路事故分析
 
杨宇峰1,党彤2,郭小梅3,尤灵伟4
(1 浙江新能量科技股份有限公司,浙江 杭州 310005;
2 西安石油大学 理学院,陕西 西安 710300;
3 陕西华电蒲城发电有限责任公司,陕西 蒲城 715501;
4 杭州交联电气工程有限公司,浙江 杭州 310011)
 
    摘 要:介绍了一台干式变压器短路事故,运用相关电路原理和极限等数学方法对单相线圈事故状态下电阻变化的几种可能性进行了理论分析,并将事故变压器测量数据和理论分析相结合进行验证,进而对变压器事故状况进行了定性评判,该案例分析方法亦可为同类事故的分析提供技术和案例参考。
    关键词:线圈;直流电阻;短路;开路
中图分类号:TM412 文献标识码:A 文章编号: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
 
参考文献
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