- 型号:PACIFIC T4T30
- 数量:1
- 制造商: 厦门兴锐达自动化设备有限公司
- 有效期:2019/2/1 0:00:00
关键词: GIS;电压互感器;B类冲击波;传递过电压;测量装置
摘要:摘要:为了测量GIS用互感器的传递过电压,本文利用实验室虚拟仪器工作平台Lab VIEW 8.6(Laboratory Virtual Instrument Engineering Workbench),开发一套适用于互感器传递过电圧试验的测量控制装置。通过该测控装置测量了110kV GIS电压互感器的传递过电压,试验结果表明该装置的B类冲击波产生、控制和测量均能满足国家标准和IEC标准的要求,且使用灵活方便,可靠性高,能很好运用于互感器型式试验中传递过电圧的测量及研究传递过电圧的传递特性。
GIS用互感器的传递过电压测量装置研究
王彦金,王巍
(武汉楚为志远信息科技有限公司,武汉,430074)
摘要:为了测量GIS用互感器的传递过电压,本文利用实验室虚拟仪器工作平台Lab VIEW 8.6(Laboratory Virtual Instrument Engineering Workbench),开发一套适用于互感器传递过电圧试验的测量控制装置。通过该测控装置测量了110kV GIS电压互感器的传递过电压,试验结果表明该装置的B类冲击波产生、控制和测量均能满足国家标准和IEC标准的要求,且使用灵活方便,可靠性高,能很好运用于互感器型式试验中传递过电圧的测量及研究传递过电圧的传递特性。
关键词:GIS;电压互感器;B类冲击波;传递过电压;测量装置
Study onmeasurement device fortransfer over voltage of GIS transformer
Abstract:In order tomeasure the transfer VFTO of GIS voltage transformer, this paper developed ameasurement and control device which based on Lab VIEW 8.6 Workbench. Usingthis device to test the transmitted over voltage of 110kV GIS Voltagetransformer, the result showed that the device not only can meet therequirements of IEC and national standards, but also be flexible and reliableto use, which can be well applied to the transformer type test and research oftransmitted over voltage characteristics.
Key words:GIS; voltage transformer;B class shock; transfer over voltage; measurement device
0 引 言
气体绝缘开关设备(gas insulatedswitchgear, GIS)中隔离开关例行操作常会引起频率1-100MHz的特快速瞬态过电压(VFTO)[1-2]。电力系统的正常运行中如果这种过电压从高电压系统传递到低电压系统,就有可能对低电压系统的电器设备造成损害,影响电气设备的安全运行[3-4]。GIS电压互感器本身就是电容分压和电磁感应原理进行电压测量的线路器件。由于GIS电压互感器接于线路对地之间,所以这种过电压要传递到二次测量回路,使二次测量设备承受来自一次回路的传递过电压,在GIS运行中也出现过互感器传递过电压造成二次设备危害的问题[5-6]。
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