一起机械振动导致高压隔离开关误动分析及改进
|
摘要
针对某750 kV变电站由于机械振动导致高压隔离开关误动作的问题,通过对寄生回路排查、接触器安装工艺及选型等方面进行具体分析,提出了避免高压隔离开关误动作的有效改进措施。应用结果表明:改进后高压隔离开关运行环境更为稳定,有效地降低了分合闸接触器由于机械振动导致误动作的可能性,为后续变电站高压隔离开关设计制造、安装和运维等方面提供宝贵经验。
Aiming at the misoperation problem of high voltage isolation switch in a 750 kV substation, the reasons were concretely analyzed such as the inspection of parasitic circuit, the installation process and selection of the contactors. The effective improvement measures were brought forward to avoid misoperation of high voltage isolation switch. The application result shows that the improved high voltage isolation switch running is more stable, the possibility of the misoperation of open and close contactor caused by mechanical vibration is effectively reduced, which provide valuable experience of the design and manufacture, installation and operation for the high voltage isolation switch in the follow-up substation.
Aiming at the misoperation problem of high voltage isolation switch in a 750 kV substation, the reasons were concretely analyzed such as the inspection of parasitic circuit, the installation process and selection of the contactors. The effective improvement measures were brought forward to avoid misoperation of high voltage isolation switch. The application result shows that the improved high voltage isolation switch running is more stable, the possibility of the misoperation of open and close contactor caused by mechanical vibration is effectively reduced, which provide valuable experience of the design and manufacture, installation and operation for the high voltage isolation switch in the follow-up substation.
引文
[1]刘有为,吴立远,弓艳朋.GIS设备气体分解物及其影响因素研究[J].电网技术,2009,33(5):58-61.
[2]陈小龙.由隔离开关控制回路对地短路引起的误动分析[J].华电技术,2009,31(3):65-66.
[3]姚卫东,周剑峰,梁启海.750 kV断路器分合闸后隔离开关误动作分析[J].青海电力,2012,31(2):46
[4]毛为民.隔离开关操作引起失灵保护误动的分析[J].电力系统自动化,2002,26(7):74-76.
[5]林志明,李其书,梁云龙,等.GW28/29-550型隔离开关设计缺陷及改进方案[J].电工技术,2017,1(A):122-123.
[6]王春霞.750 kV系统中3/2接线的运行分析及保护配置[J].科技信息,2010,(7):362-363.
[7]周葛城,周兴,李文超,等.浅析高压隔离开关故障原因及检修措施[J].低碳世界,2016,(29):65-66.
[8]王景军.浅谈电气二次回路中的寄生回路[J].电力自动化设备,1998,(2):18-19.
[9]韦俏岚.变电站隔离开关分、合闸操作时分合不到位的原因[J].电子制作,2015,(22):71.
[10]沈力,黄瑜珑,钱家骊.高压断路器机械状态监测的研究[J].中国电机工程学报,1997,17(2):113-117.
[11]陈佳成.断路器储能机构分析[J].建筑电气,2013,(3):64-66.
[12]陈向明,田相芹.SF_6高压断路器储能回路的改造[J].电世界,2015,(3):26-27.
[13]蒋超伟.断路器弹簧储能机构故障分析与处理[J].农村电气化,2009,(1):22.
[14]边红涛.500 kV隔离开关分合闸拒动异常分析[J].电工技术,2017,(11A):90-91.
[15]刘新波,高国英,李雷.隔离开关操动机构误动作原因分析及改进措施[J].电气制造,2015,(2):68-70.
[16]常林晶,徐光辉,乔岩泽等.GW4型隔离开关分合闸操作力矩的分析与计算[J].高压电器,2013,49(11):127-132.
[17]邓光武,宋述波,王超,等.500 kV隔离开关控制接触器频繁故障的原因分析及反事故措施[J].电力建设,2012,33(2):88-91.
[18]叶会生,于坤,陆新洁,等.液压操动机构高压断路器分闸振动特性仿真与实验研究[J].湖北大学学报(自然科学版),2016,38(6):544-550+556.
[19]范荣全,曹枚根,卓越等.高压断路器抗震能力分析及抗震减震措施[J].高压电器,2012,48(3):12-16+20.
[20]李普恩,赵清抗.变压器三维冲撞仪底板的改进[J].电气制造,2010,(8):76-77.
[2]陈小龙.由隔离开关控制回路对地短路引起的误动分析[J].华电技术,2009,31(3):65-66.
[3]姚卫东,周剑峰,梁启海.750 kV断路器分合闸后隔离开关误动作分析[J].青海电力,2012,31(2):46
[4]毛为民.隔离开关操作引起失灵保护误动的分析[J].电力系统自动化,2002,26(7):74-76.
[5]林志明,李其书,梁云龙,等.GW28/29-550型隔离开关设计缺陷及改进方案[J].电工技术,2017,1(A):122-123.
[6]王春霞.750 kV系统中3/2接线的运行分析及保护配置[J].科技信息,2010,(7):362-363.
[7]周葛城,周兴,李文超,等.浅析高压隔离开关故障原因及检修措施[J].低碳世界,2016,(29):65-66.
[8]王景军.浅谈电气二次回路中的寄生回路[J].电力自动化设备,1998,(2):18-19.
[9]韦俏岚.变电站隔离开关分、合闸操作时分合不到位的原因[J].电子制作,2015,(22):71.
[10]沈力,黄瑜珑,钱家骊.高压断路器机械状态监测的研究[J].中国电机工程学报,1997,17(2):113-117.
[11]陈佳成.断路器储能机构分析[J].建筑电气,2013,(3):64-66.
[12]陈向明,田相芹.SF_6高压断路器储能回路的改造[J].电世界,2015,(3):26-27.
[13]蒋超伟.断路器弹簧储能机构故障分析与处理[J].农村电气化,2009,(1):22.
[14]边红涛.500 kV隔离开关分合闸拒动异常分析[J].电工技术,2017,(11A):90-91.
[15]刘新波,高国英,李雷.隔离开关操动机构误动作原因分析及改进措施[J].电气制造,2015,(2):68-70.
[16]常林晶,徐光辉,乔岩泽等.GW4型隔离开关分合闸操作力矩的分析与计算[J].高压电器,2013,49(11):127-132.
[17]邓光武,宋述波,王超,等.500 kV隔离开关控制接触器频繁故障的原因分析及反事故措施[J].电力建设,2012,33(2):88-91.
[18]叶会生,于坤,陆新洁,等.液压操动机构高压断路器分闸振动特性仿真与实验研究[J].湖北大学学报(自然科学版),2016,38(6):544-550+556.
[19]范荣全,曹枚根,卓越等.高压断路器抗震能力分析及抗震减震措施[J].高压电器,2012,48(3):12-16+20.
[20]李普恩,赵清抗.变压器三维冲撞仪底板的改进[J].电气制造,2010,(8):76-77.