1100 kV特高压交流变电站开关设备低温应对措施
|
摘要
随着特高压交流工程建设的不断开展,越来越多特高压变电站将建设在低温地区。由于特高压开关设备普遍采用SF_6气体绝缘,在低温地区使用会存在低温液化问题,降低设备运行稳定性,提升电网运行风险,需采取措施提高设备耐受低温能力。基于设备重要性的考虑,对于1 100 kV GIS,宜采用户内布置方式。对于户外使用的1 100 kV出线套管和分支母线可采用降低气压的方法降低气体液化温度。对于其他电压等级的GIS设备,可在设备外壳加装加热装置,按一定程序对设备气室加热,保证绝缘和灭弧介质SF_6的状态稳定。上述低温应对措施均通过了低温试验考核,试验结果将为后续低温特高压站的建设和运行提供指导。
As the UHVAC power project develops,more and more UHV submission will build at low temperature area. As the insulating medium of UHVAC switchgear,SF_6 is likely to liquefy at low temperature,which may reduce the stability of the switchgear and increase the operation risk of the state grid. It is necessary to take measures to improve the cold-resistant ability of the switchgear. Based on the importance of different switchgear,it is appropriate to carry out indoor installation for 1 100 kV GIS. To some outdoor 1 100 kV busing and bus,reduce the SF_6 pressure can make the liquefaction temperature lower to accommodate the cold environment. To 126 kV GIS and 550 kV GIS,it is effective to add heating devices around the switchgear,and heat it at certain procedure,which can keep the SF_6 stable. All the measures have been tested by low temperature test. And the result can provide guidance for the latter construction and operation of UHV submission.
As the UHVAC power project develops,more and more UHV submission will build at low temperature area. As the insulating medium of UHVAC switchgear,SF_6 is likely to liquefy at low temperature,which may reduce the stability of the switchgear and increase the operation risk of the state grid. It is necessary to take measures to improve the cold-resistant ability of the switchgear. Based on the importance of different switchgear,it is appropriate to carry out indoor installation for 1 100 kV GIS. To some outdoor 1 100 kV busing and bus,reduce the SF_6 pressure can make the liquefaction temperature lower to accommodate the cold environment. To 126 kV GIS and 550 kV GIS,it is effective to add heating devices around the switchgear,and heat it at certain procedure,which can keep the SF_6 stable. All the measures have been tested by low temperature test. And the result can provide guidance for the latter construction and operation of UHV submission.
引文
[1]刘振亚.构建全球能源互联网有四个重点[J].电气时代,2015(7):28-31.LIU Zhenya.Four points to build the global energy internet[J].Electric Age,2015(7):28-31.
[2]黎斌.SF6高压电器设计[M].北京:机械工业出版社,2003.LI Bin.SF6 high voltage electric equipment design[M].Beijing:China Machine Press,2003.
[3]王永光.SF6断路器运行中气体低温液化解决方案[J].内蒙古电力技术,2009,27(4):35-37.WANG Yongguang.Solution to gas low-temperature liquefaction in operation of SF6 circul breakers[J].Inner Mongolia Electric Power,2009,27(4):35-37.
[4]张宗九,陈少波.SF6气体的压力和温度的关系[J].华东电力,2002(9):19-22.ZHANG Zongjiu,CHEN Shaobo.The relationship between pressure and temperature of SF6[J].East China Electric Power,2002(9):19-22.
[5]李国兴,姜子秋,关艳玲,等.六氟化硫气体低温液化特性试验研究[J].黑龙江电力,2015,37(5):399-403.LI Guoxing,JIANG Ziqiu,GUAN Yanling,et al.Research on characteristic test of SF6 gas low-temperature liquefaction[J].Heilongjiang Electric Power,2015,37(5):399-403.
[6]贾明月,郭夫,刘树新,等.LW15-252型断路器低温运行特点及应对措施的研究[J].高压电器,2011,47(11):106-109.JIA Mingyue,GUO Fu,LIU Shuxin,et al.Study on low-temperature features and corresponding countermeasure for LW15-252 circuit breaker[J].High Voltage Apparatus,2011,47(11):106-109.
[7]杨俊朋,曹云龙,付伟峰.一种气体绝缘金属封闭开关设备在低温地区的应用[J].电工电气,2011(7):39-41.YANG Junpeng,CAO Yunlong,FU Weifeng.Application of kind of gas insulated metal-enclosed switchgear in low temperature area[J].Electrotechnics Electric,2011(7):39-41.
[8]宁琳,于观超.SF6断路器低温运行压力闭锁原因分析[J].电子制作,2014(22):29-30.NING Lin,YU Guanchao.Analysis the cause of SF6 pressure block when the SF6 circuit-breaker operates under low temperature[J].Practical Electronics,2014(22):29-30.
[9]李波涛,周毅,徐党国,等.SF6断路器高寒地区使用探讨[J].华北电力技术,2015(1):37-40.LI Botao,ZHOU Yi,XU Dangguo,et al.Discussion on use of SF6 circuit breakers in alpine region[J].North China Electric Power,2015(1):37-40.
[10]徐国政.高压断路器原理和应用[M].北京:清华大学出版社,2000.XU Guozheng.The theory and application of high voltage circuit breaker[M].Beijing:Tsinghua University Press,2000.
[11]刘民义.高温输热管道保温新技术--介绍复合层保温方法[J].电力建设,1989(4):53-55.LIU Minyi.New technology of high temperature heat-transport line[J].Electric Power Construction,1989(4):53-55.
[12]周明.SF6断路器在冬季出现低温闭锁的分析及对策[J].新疆电力技术,2011(4):42-43.ZHOU Ming.The analysis and countermeasures of SF6circuit breaker block under low temperature in winter[J].Xinjiang Electric Technology,2011(4):42-43.
[13]李国奇,王红艳,秦泳,等.SF6最低功能压力与产品环境适应能力分析[J].电气制造,2008(7):68-71.LI Guoqi,WANG Hongyan,QIN Yong,et al.The analysis of the lowest functional pressure and the ability to fit the environment of SF6[J].Electrical Manufacturing,2008(7):68-71.
[14]肖登明,董越,黄东海.我国特高压输电工程的GIS技术[J].高电压技术,2006,32(12):115-117.XIAO Dengming,DONG Yue,HUANG Donghai.GIStechnology of UHV transmission engineering in China[J].High Voltage Engineering,2006,32(12):115-117.
[15]王建明.极端低温下500 k V高压开关设备的选择[J].水电站机电技术,2014,37(4):26-27.WANG Jianming.The selection method of 500 kV high voltage switchgear at ultra-low temperature[J].Mechanical&Electrical Technique of Hydropower Station,2014,37(4):26-27.
[16]马蕊燕,柯友胜,张静,等.低温开关油的性能特点、标准与典型产品介绍[J].石油商技,2017(1):46-51.MA Ruiyan,KE Yousheng,ZHANG Jing,et al.The performance characteristics,standard and typical products of switch oil used at low temperature[J].Petroleum Products Application Research,2017(1):46-51.
[17]倪同江.六氟化硫气体密度继电器(表)的结构原理和运行中的注意事项[J].科技资讯,2007(2):38-38.NI Tongjiang.The structure principle and operation notice of SF6 density relay[J].Science&Technology Information,2007(2):38-38.
[18]王艳秋,蒋志刚.户外SF6断路器在严寒地区可靠运行[J].宁夏电力,2005(s1):92-94.WANG Yanqiu,JIANG Zhigang.SF6 breaker outdoors reliable operation in chilliness area[J].Ningxia Electric Power,2005(s1):92-94.
[19]张雁鸣.GIS、SF6断路器、PASS在低温高寒地区使用应过程确认[Z].北京:中国电力企业联合会,2013.44-53.ZHANG Yanming.The application of GIS,SF6 circuit breaker and PASS at low temperature area[Z].Beijing:China Electricity Council,2013:44-53.
[20]王向阳,赵建军,司雪峰.关于SF6断路器在运行中的几个问题及改进方法[J].高压电器,2004,40(1):71-73.WANG Xiangyang,ZHAO Jianjun,SI Xuefeng.Discussion on several problems and their solutions of SF6 circuit breaker in service[J].High Voltage Apparatus,2004,40(1):71-73.
[21]李松琴.电加热方式在SF6开关设备中的应用[J].电气技术,2014(4):53-56.LI Songqin.Application of electric heating in SF6 switchgear[J].Electrical Engineering,2014(4):53-56.
[2]黎斌.SF6高压电器设计[M].北京:机械工业出版社,2003.LI Bin.SF6 high voltage electric equipment design[M].Beijing:China Machine Press,2003.
[3]王永光.SF6断路器运行中气体低温液化解决方案[J].内蒙古电力技术,2009,27(4):35-37.WANG Yongguang.Solution to gas low-temperature liquefaction in operation of SF6 circul breakers[J].Inner Mongolia Electric Power,2009,27(4):35-37.
[4]张宗九,陈少波.SF6气体的压力和温度的关系[J].华东电力,2002(9):19-22.ZHANG Zongjiu,CHEN Shaobo.The relationship between pressure and temperature of SF6[J].East China Electric Power,2002(9):19-22.
[5]李国兴,姜子秋,关艳玲,等.六氟化硫气体低温液化特性试验研究[J].黑龙江电力,2015,37(5):399-403.LI Guoxing,JIANG Ziqiu,GUAN Yanling,et al.Research on characteristic test of SF6 gas low-temperature liquefaction[J].Heilongjiang Electric Power,2015,37(5):399-403.
[6]贾明月,郭夫,刘树新,等.LW15-252型断路器低温运行特点及应对措施的研究[J].高压电器,2011,47(11):106-109.JIA Mingyue,GUO Fu,LIU Shuxin,et al.Study on low-temperature features and corresponding countermeasure for LW15-252 circuit breaker[J].High Voltage Apparatus,2011,47(11):106-109.
[7]杨俊朋,曹云龙,付伟峰.一种气体绝缘金属封闭开关设备在低温地区的应用[J].电工电气,2011(7):39-41.YANG Junpeng,CAO Yunlong,FU Weifeng.Application of kind of gas insulated metal-enclosed switchgear in low temperature area[J].Electrotechnics Electric,2011(7):39-41.
[8]宁琳,于观超.SF6断路器低温运行压力闭锁原因分析[J].电子制作,2014(22):29-30.NING Lin,YU Guanchao.Analysis the cause of SF6 pressure block when the SF6 circuit-breaker operates under low temperature[J].Practical Electronics,2014(22):29-30.
[9]李波涛,周毅,徐党国,等.SF6断路器高寒地区使用探讨[J].华北电力技术,2015(1):37-40.LI Botao,ZHOU Yi,XU Dangguo,et al.Discussion on use of SF6 circuit breakers in alpine region[J].North China Electric Power,2015(1):37-40.
[10]徐国政.高压断路器原理和应用[M].北京:清华大学出版社,2000.XU Guozheng.The theory and application of high voltage circuit breaker[M].Beijing:Tsinghua University Press,2000.
[11]刘民义.高温输热管道保温新技术--介绍复合层保温方法[J].电力建设,1989(4):53-55.LIU Minyi.New technology of high temperature heat-transport line[J].Electric Power Construction,1989(4):53-55.
[12]周明.SF6断路器在冬季出现低温闭锁的分析及对策[J].新疆电力技术,2011(4):42-43.ZHOU Ming.The analysis and countermeasures of SF6circuit breaker block under low temperature in winter[J].Xinjiang Electric Technology,2011(4):42-43.
[13]李国奇,王红艳,秦泳,等.SF6最低功能压力与产品环境适应能力分析[J].电气制造,2008(7):68-71.LI Guoqi,WANG Hongyan,QIN Yong,et al.The analysis of the lowest functional pressure and the ability to fit the environment of SF6[J].Electrical Manufacturing,2008(7):68-71.
[14]肖登明,董越,黄东海.我国特高压输电工程的GIS技术[J].高电压技术,2006,32(12):115-117.XIAO Dengming,DONG Yue,HUANG Donghai.GIStechnology of UHV transmission engineering in China[J].High Voltage Engineering,2006,32(12):115-117.
[15]王建明.极端低温下500 k V高压开关设备的选择[J].水电站机电技术,2014,37(4):26-27.WANG Jianming.The selection method of 500 kV high voltage switchgear at ultra-low temperature[J].Mechanical&Electrical Technique of Hydropower Station,2014,37(4):26-27.
[16]马蕊燕,柯友胜,张静,等.低温开关油的性能特点、标准与典型产品介绍[J].石油商技,2017(1):46-51.MA Ruiyan,KE Yousheng,ZHANG Jing,et al.The performance characteristics,standard and typical products of switch oil used at low temperature[J].Petroleum Products Application Research,2017(1):46-51.
[17]倪同江.六氟化硫气体密度继电器(表)的结构原理和运行中的注意事项[J].科技资讯,2007(2):38-38.NI Tongjiang.The structure principle and operation notice of SF6 density relay[J].Science&Technology Information,2007(2):38-38.
[18]王艳秋,蒋志刚.户外SF6断路器在严寒地区可靠运行[J].宁夏电力,2005(s1):92-94.WANG Yanqiu,JIANG Zhigang.SF6 breaker outdoors reliable operation in chilliness area[J].Ningxia Electric Power,2005(s1):92-94.
[19]张雁鸣.GIS、SF6断路器、PASS在低温高寒地区使用应过程确认[Z].北京:中国电力企业联合会,2013.44-53.ZHANG Yanming.The application of GIS,SF6 circuit breaker and PASS at low temperature area[Z].Beijing:China Electricity Council,2013:44-53.
[20]王向阳,赵建军,司雪峰.关于SF6断路器在运行中的几个问题及改进方法[J].高压电器,2004,40(1):71-73.WANG Xiangyang,ZHAO Jianjun,SI Xuefeng.Discussion on several problems and their solutions of SF6 circuit breaker in service[J].High Voltage Apparatus,2004,40(1):71-73.
[21]李松琴.电加热方式在SF6开关设备中的应用[J].电气技术,2014(4):53-56.LI Songqin.Application of electric heating in SF6 switchgear[J].Electrical Engineering,2014(4):53-56.