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

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断口冲击联合电压试验中工频侧电压跌落问题研究

来源:电工电气发布时间:2020-05-13 15:13 浏览次数:871
断口冲击联合电压试验中工频侧电压跌落问题研究
 
李华良1,孙敏2,尚迪1,赵磊1,吉小振1
(1中国启源工程设计院研究院有限公司,陕西 西安 710018;2 西安交通大学 电气工程学院,陕西 西安 710049)
 
    摘 要:开关设备断口的联合电压试验是其重点绝缘型式试验项目。在进行冲击+工频联合电压试验中,由于两个高压电源回路间存在电容耦合,试验时冲击电压会引起工频侧电压跌落,需要采取适当的跌落补偿措施。讨论了联合电压试验中反向工频电压峰值系数的取值问题。以某1 100 kV GIS型隔离开关的雷电冲击联合电压试验(LIWV+AC)为例,通过实际试验结合等效电路计算分析和ATP-EMTP仿真,重点研究了试品断口电容、附加电容等参数对工频侧电压跌落的影响,给出了合理的试验方法,并对实际试验中应当注意的问题进行了总结。
    关键词:开关断口;电压跌落;电容耦合;联合电压试验
    中图分类号:TM56     文献标识码:A     文章编号:1007-3175(2020)05-0047-05
 
Study on the Voltage Drop of Power Frequency Side in the Combined Voltage Test of Breaker Impact
 
LI Hua-liang1, SUN Min2, SHANG Di1, ZHAO Lei1, JI Xiao-zhen1
(1 China Qiyuan Engineering Corporation, Xi'an 710018, China;
2 College of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China)
 
    Abstract: The combined voltage test is one of the most important dielectric type tests of switchgear breaker.During the impulse plus power frequency combined voltage test, due to the capacitance coupling between the two high-voltage power supply circuits, the impulse voltage will cause a voltage drop at power frequency side during the test, and appropriate voltage drop compensation measures should be taken. This paper briefly discusses the value of peak coefficient of reverse power frequency voltage in combined voltage test.Taking the lightning impulse combined voltage test (LIWV+AC) of a 1 100 kV GIS type disconnector as an example, through the actual test combined with the equivalent circuit calculation and ATP-EMTP simulation, the influence of capacitance across the open switching device and the additional capacitance on power transformer side voltage drop is mainly studied, and the reasonable test method is given.Finally, the problems that should be noted in the actual test are summarized.
    Key words: across the open switching device; voltage dorp; capacitance coupling; combined voltage test
 
参考文献
[1] 程显,廖敏夫,段雄英,等. 双断口真空开关瞬态恢复电压分布特性的仿真与实验研究[J]. 中国电机工程学报,2012,32(1):171-178.
[2] NATSUI K, KUROSAWA Y, HAKAMATA Y, et al. Voltage distribution characteristics of series connected SF6 gas and vacuum interrupters immediately after a large current interruption[J].IEEE Transactions on Power Delivery,1988,3(1):241-248.
[3] 刘亚培,林生军,高文胜,等.800 kV GIS变电站VFTO计算研究[J]. 高压电器,2017,53(9):143-148.
[4] 国家电网有限公司. 十八项电网重大反事故措施(2018 年修订版)及编制说明[M]. 北京:中国电力出版社,2018.
[5] 中国电器工业协会. 绝缘配合 第1 部分:定义、原则和规则:GB 311.1—2012[S]. 北京:中国标准出版社,2012:12.
[6] 中国电器工业协会. 高压开关设备和控制设备标准的共用技术要求:GB/T 11022—2011[S]. 北京:中国标准出版社,2012:42-43.
[7] 孟峥峥,钟磊,吕亮,等. 断路器联合加压试验的建模与仿真[J]. 高压电器,2010,46(1):32-34.
[8] 王春杰,张弦,王露,等. 工频试验变压器在高压开关设备试验中的运行工况[J]. 高压电器,2016,52(2):115-120.
[9] 王森,何立柱,于义亮,等. 特高压交流断路器断口联合加压试验方法研究[J]. 陕西电力,2010,38(12):19-23.
[10] 余良清,魏长宇,魏俊梅,等.1 100 kV SF6断路器断口联合电压试验研究[J]. 电气工程学报,2015,10(6):84-87.
[11] International Electrotechnical Commission. Guide to IEC 62271-100, IEC 62271-1 and other IEC standards related to alternating current ircuit-breakers:IEC/TR 62271-306:2012[S]. Geneva:IEC,2012:42.
[12] International Electrotechnical Commission. High-voltage switchgear and controlgear-Part1: Common specifications for alternating current switchgear and controlgear:IEC 62271-1:2017[S].Geneva:IEC,2017:54.
[13] 中国电力企业联合会.1 100 kV高压交流断路器:GB/T 24838—2018[S]. 北京:中国标准出版社,2018:17.
[14] 中国电力企业联合会. 高压开关设备和控制设备标准的共用技术要求:DL/T 593—2016[S]. 北京:中国电力出版社,2016:20.
[15] WOLFGANG Hauschild, EBERHARD Lemke.High Voltage Test and Measuring Techniques[M]. London:Springer Verlag,2014.