| 500kV变压器保护配置与维护探讨 |
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| 引用本文： | 康鑫,王亚娟,吴军. 500kV变压器保护配置与维护探讨[J]. 西北电力技术, 2014, 0(1): 60-64 |
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| 作者姓名： | 康鑫 王亚娟 吴军 |
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| 作者单位： | [1]深圳供电局有限公司,广东深圳518020 [2]国网湖北省电力公司技术培训中心,湖北武汉430072 [3]武汉大学,湖北武汉430072 |
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| 基金项目： | 国家自然科学基金资助项目（51207114） |
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| 摘 要： | 500 kV变压器采用自耦变压器,保护配置有其独特的一面.以500 kV主变保护装置RCS-978G5和CSC-326C为例,对保护配置及CT配置进行了详细的分析,并对2种保护装置不同励磁涌流判别和相位补偿方法进行了比较,在此基础上给出了实际工作中分析励磁涌流的方法,指出了变压器维护时需注意的危险点,主要包括：电流回路开路、电压回路短路、电压回路的反充电及误启动失灵回路,以及需注意做好装置压板的检查和与外界电压电流的隔离.
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| 关 键 词： | 保护配置 CT配置 励磁涌流 相位补偿 危险点 |
Protection Configuration and Maintenance of 500 kV Transformer |
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| KANG Xin,WANG Ya-juan,WU Jun. Protection Configuration and Maintenance of 500 kV Transformer[J]. Northwest China Electric Power, 2014, 0(1): 60-64 |
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| Authors: | KANG Xin WANG Ya-juan WU Jun |
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| Affiliation: | 1.Shenzhen Power Supply Bureau Co., Ltd., Guangdong 518020, China; 2.State Grid Hubei Technical Training Center, Wuhan 430072, China; 3.Wuhan University, Wuhan 430072, China;) |
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| Abstract: | 500 kV transformer adopts autotransformer,its the protection configuration has a unique side.Taking the transformer protection RCS-978 and CSC-326 for example,this paper gave a detailed analysis of protection and CT configuration,compared with the different methods on discrimination of the inrush current and phase compensation of transformer.On the basis,it gave methods of analyzing inrush current in practical work.At last,it introduced the dangerous points on periodical examination,including current loop broken,voltage loop short or reverse charge and starting loop of failure protection.The points are platen examination and isolation of current and voltage in practical work. |
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| Keywords: | protection configuration CT configuration inrush current phase compensation dangerous points |
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