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750kV高压电抗器笼式出线结构均压特性研究
引用本文:包博,谢天喜,彭宗仁,刘鹏,莫娟.750kV高压电抗器笼式出线结构均压特性研究[J].电网技术,2011(5).
作者姓名:包博  谢天喜  彭宗仁  刘鹏  莫娟
作者单位:电力设备电气绝缘国家重点实验室(西安交通大学);中国电力科学研究院;
摘    要:750 kV变电站内高压电抗器多采用笼式分裂导线与管母连接,该结构形式较为复杂,容易发生严重的电晕放电,既造成功率损耗,又给周围环境带来可听噪声和无线电干扰,因此有必要对高压电抗器出线结构采取一定的防晕措施。采用三维有限元法,对750 kV变电站高压电抗器出线回路进行仿真计算,得出其三维电位及电场强度分布规律,计算笼式出线各分裂导线表面的电场强度分布情况,分析不同屏蔽环配置对其分布的影响,提出高压电抗器笼式出线结构的屏蔽环配置建议。研究成果有效改善了750 kV高压电抗器笼式出线结构的均压特性,已在甘肃白银750 kV变电站的设计和建设中得到应用。

关 键 词:高压电抗器  笼式出线  电场分布  电晕  屏蔽环  有限元  

Voltage-Sharing Characteristics of Cage Outgoing Line Structure for HV Reactors in 750 kV Power Grid
BAO Bo,XIE Tianxi,PENG Zongren,LIU Peng,MO Juan,Xi'an ,Shaanxi Province,China,.China Electric Power Research Institute,Haidian District,Beijing ,China.Voltage-Sharing Characteristics of Cage Outgoing Line Structure for HV Reactors in 750 kV Power Grid[J].Power System Technology,2011(5).
Authors:BAO Bo  XIE Tianxi  PENG Zongren  LIU Peng  MO Juan  Xi'an  Shaanxi Province  China  China Electric Power Research Institute  Haidian District  Beijing  China
Affiliation:BAO Bo1,XIE Tianxi1,PENG Zongren1,LIU Peng1,MO Juan2(1.State Key Laboratory of Electrical Insulation and Power Equipment(Xi'an Jiaotong University),Xi'an 710049,Shaanxi Province,China,2.China Electric Power Research Institute,Haidian District,Beijing 100192,China)
Abstract:The HV reactors in 750kV substations are mostly connected to tubular busbar by cage-bundled conductors.Due to the complexity of such a structure the severe corona discharge is easy to occur,it not only causes power loss,but also brings about audible noise and radio interference in surrounding environment,so it is necessary to adopt a certain anti-corona measures.Utilizing three-dimensional finite element method the outgoing circuit of HV reactor located in 750kV substation is calculated and the three-dimens...
Keywords:high voltage reactor  cage-outgoing line  electric field distribution  corona  shielding ring  finite element  
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