Analysis of a Dry-Type Reactor Fault Combined with COMSOL Thermal Field Simulation and High Frequency Pulse Oscillations

doi:10.11930/j.issn.1004-9649.201711141

Abstract

Abstract: Focused on a single-phase earth fault of 35 kV dry-type reactor, comprehensive analysis is performed including impulse oscillating turn-to-turn insulation test, disassembly in manufacturer and COSMOL thermal field simulation. The cause of the accident is turn-to-turn insulation failure in the 5th package. Due to internal conductor burning, the preventive test of DC resistance measurement has limitation on insulation failure detection. Thermal field simulation of reactor is also performed, and results show that the hot spot of reactor during operation is in the 6th floor coating, which has 73.8 K temperature rise. Temperature rise on 5th, 7th, 14th, 15th package is also high compared to other packages which deteriorates device insulation. The analysis and simulation results provide valuable reference for device design, production, operation and testing.

Key words: dry type reactor, turn-to-turn insulation, high frequency pulse oscillations, thermal field simulation

CLC Number:

TM471

LUO Xin, HUANG Xuemin, ZHENG Wenjian, GU Yu, LIU Chuntao, TAN Huaan. Analysis of a Dry-Type Reactor Fault Combined with COMSOL Thermal Field Simulation and High Frequency Pulse Oscillations[J]. Electric Power, 2018, 51(5): 31-38.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201711141

https://www.electricpower.com.cn/EN/Y2018/V51/I5/31

References

[1] 徐林峰.一起干式空心串联电抗器的故障分析[J]. 电力电容器与无功补偿, 2008, 29(2):50-54.XU Linfeng. Fault analysis of dry-type air-core series reactor[J]. Power Capacitor & Reactive Power Compensation, 2008, 29(2):50-54.
[2] 潘臻, 温定筠, 杨萍, 等.用脉冲电压谐振法检测干式电抗器匝间绝缘的现场应用[J]. 电力电容器与无功补偿, 2015, 36(5):88-91.PAN Zhen, WEN Dingyun, YANG Ping, et al. Application of pulse voltage resonance method to the detection of inter-turn insulation of dry-type reactor[J]. Power Capacitor & Reactive Power Compensation, 2015, 36(5):88-91.
[3] 付炜平, 赵京武, 霍春燕. 一起35 kV干式电抗器故障原因分析[J]. 电力电容器与无功补偿, 2011, 32(1):59-62.FU Weiping, ZHAO Jingwu, HUO Chunyan. Reason analysis for a 35 kV dry type reactor fault[J]. Power Capacitor & Reactive Power Compensation, 2011, 32(1):59-62.
[4] 夏长根. 一起35 kV干式并联空心电抗器故障分析[J]. 电力电容器与无功补偿, 2009, 30(5):43-45.XIA Changgen. 35 kV together of dry type hollow shunt reactor failure analysis[J]. Power Capacitor & Reactive Power Compensation, 2009, 30(5):43-45.
[5] 国家电网公司运维检修部. 变压器类设备典型故障案例汇编[M]. 北京:中国电力出版社, 2012:120-144.
[6] 季娟, 俞集辉, 袁一飞, 等.空心电抗器磁场分布和防护体架设研究[J]. 高压电器, 2009(6):61-64.JI Juan, YU Jihui, YUAN Yifei, et al. Hollow reactor magnetic field distribution and the guarded body erect study[J]. High Voltage Apparatus, 2009(6):61-64.
[7] 廖敏夫, 程显, 翟云飞.干式空心电抗器脉冲振荡匝间绝缘检测系统的仿真与试验[J]. 高电压技术, 2011, 37(6):1343-1348.LIAO Minfu, CHENG Xian, ZHAI Yunfei. Simulation and experiment on impulse oscillating turn-to-turn iusulation test system of dry-type air core reactor[J]. High Voltage Engineering, 2011, 37(6):1343-1348.
[8] 徐林峰, 林一峰, 王永红, 等.干式空心电抗器匝间过电压试验技术研究[J]. 高压电器, 2012, 48(7):71-75.XU Linfeng, LIN Yifeng, WANG Yonghong, et al. Technique research on turn-to-turn overvoltage test for dry-type air-core reactors[J]. High Voltage Apparatus, 2012, 48(7):71-75.
[9] 魏新劳. 大型干式空心电力电抗器设计计算相关理论研究[D]. 哈尔滨:哈尔滨工业大学, 2002.
[10] 夏天伟, 曹云东, 金巍, 等. 干式空心电抗器温度场分析[J]. 高电压技术, 1999, 25(4):86-88.XIA Tianwei, CAO Yundong, JIN Wei, et al. The analysis of temperature field in dry air core reactor[J]. High Voltage Engineering, 1999, 25(4):86-88.
[11] 吴冬文. 35k V干式电抗器温度场分布及红外测温方法研究[J]. 变压器, 2013, 50(9):62-66.WU Dongwen. Temperature field distribution and infrared temperature measurement method research of 35 kV dry-type reactor[J]. Transformer, 2013, 50(9):62-66.
[12] YAN Xiuke, DAI Zhongbin, YU Cunzhan, et al. Reasearch on magneitic field and temperature field of air core power reactor[C]//2011 International Conference on Electrical Machines and Systems, China, 2011.
[13] 陈嵘, 杨松伟, 程泳, 等. 干式空心并联电抗器电磁-流体-温度场耦合计算与分析[J]. 高电压技术, 2017, 43(9):3021-3028.CHEN Rong, YANG Songwei, CHENG Yong, et al. Electromagnetic-fluid-temperature coupling calculation and analysis of dry-type air-core shunt reactor[J]. High Voltage Engineering, 2017, 43(9):3021-3028.
[14] 杨世铭. 传热学[M]. 4版. 北京:高等教育出版社, 2006:41-46.
[15] CHEN F, ZHAO Y, MA X. An efficient calculation for the temperature of dry air-core reactor based on coupled multi-physics model[C]//Electromagnetic Field Problems and Applications (ICEF), Dalian, China, IEEE, 2012:1-4.
[16] 叶占刚. 干式空心电抗器的温升试验与绕组温升的计算[J]. 变压器, 1999, 36(9):6-12.YE Zhangang. Temperature rise test of dry-type air-core reactor and calculation of its winding temperature rise[J]. Transformer, 1999, 36(9):6-12.
[17] 安利强, 王璋奇, 唐贵基. 干式电抗器三维温度场有限元分析与温升实验[J]. 华北电力大学学报, 2002, 29(3):75-78.AN Liqiang, WANG Zhangqi, TANG Guiji. 3D-temperature field prediction by FEM and temperature rise test for dry-type reactor[J]. Journal of North China Electric Power University, 2002, 29(3):75-78.
[18] 刘志刚, 耿英三, 王建华, 等. 基于流场-温度场耦合计算的新型空心电抗器设计与分析[J]. 电工技术学报, 2003, 18(6):59-63.LIU Zhigang, GENG Yingsan, WANG Jianhua, et al. Design andanalysis of new type air-core reactor based on coupled fluid thermalfield calculation[J]. Transactions of China Electrotechnical Society, 2003, 18(6):59-63.
[19] 张宇娇, 秦威南, 刘文俊. 基于耦合场数值计算的电抗器通风结构改进[J]. 高压电器, 2014, 50(8):62-65.ZHANG Yujiao, QIN Weinan, LIU Wenjun, et al. Ventilation structure improvement of reactor based on coupled field numerical analysis[J]. High Voltage Apparatus, 2014, 50(8):62-65.
[20] 商立群, 陈琦. 特高压输电线路并联电抗器补偿方案[J]. 中国电力, 2015, 48(4):95-100.SHANG Liqun, CHEN Qi. Research on three-phase shunt reactor compensation of UHV transmission lines[J]. Electric Power, 2015, 48(4):95-100.
[21] 谢天喜, 周志成, 陶风波, 等. 真空断路器开断并联电抗器保护措施仿真分析[J]. 中国电力, 2014, 47(1):39-43.XIE Tianxi, ZHOU Zhicheng, TAO Fengbo, et al. Simulation analysis on overvoltage protection of shunt reactors with switching-off vacuum circuit breakers[J]. Electric Power, 2014, 47(1):39-43.
[22] 浦琪琦, 金小谷, 张江涛.控制室内变电站电抗器噪声的新型系统结构[J]. 中国电力, 2013, 46(9):117-120.PU Qiqi, JIN Xiaogu, ZHANG Jiangtao.A new type noise control system structure for indoor-reactors[J]. Electric Power, 2013, 46(9):117-120.