中国电机工程学报Issue(23)：6235-6245,11.DOI:10.13334/j.0258-8013.pcsee.2015.23.032
特高压气体绝缘开关设备中瞬态外壳电压测量装置的研制
Development of the Measuring Device of Transient Enclosure Voltage in Ultra High Voltage Gas Insulated Switchgear
摘要
Abstract
Transient enclosure voltage (TEV) in ultra high voltage (UHV) gas insulated switchgear (GIS) has steep rise time of waveform, high amplitude, wide frequency band and other characteristics, these may affect the safety of operating personnel touched with GIS and normal operation of GIS monitoring devices. For these reasons, it is necessary to accurately measure TEV. A method of resistive impedance divider was used to measure TEV, typical waveform characteristics of TEV and basic requirements of TEV measuring were proposed; Based on basic requirements of measuring, TEV measuring device of strong anti- electromagnetic interference was developed, a series of performance tests and electromagnetic compatibility and insulation tests were carried out on the device; Equivalent circuits of measuring device and measuring/grounding shielded cables were established, through simulation and experimental test, these maximum lengths of both shielded cables were respectively defined; Finally, the measuring device was applied to TEV multiple measuring points of a whole process simultaneous measurement in UHV GIS on site, these results show that TEV measuring device met TEV measuring on UHV GIS site. Therefore, TEV waveform characteristics and distribution of different locations on GIS enclosure can be obtained by TEV measuring device, these experimental data are provided for TEV modeling and simulation.关键词
特高压/气体绝缘开关设备/瞬态外壳电压/测量装置/性能测试/建模仿真Key words
ultra high voltage (UHV)/gas insulated switchgear (GIS)/transient enclosure voltage (TEV)/measuring device/performance test/modeling and simulation分类
信息技术与安全科学引用本文复制引用
胡榕,崔翔,陈维江,张卫东,李志兵,戴敏..特高压气体绝缘开关设备中瞬态外壳电压测量装置的研制[J].中国电机工程学报,2015,(23):6235-6245,11.基金项目
国家重点基础研究发展计划项目(973项目)(2011CB209405)；国家电网公司科技项目(SGKJJSKF[2009]776,2011)；中央高校基本科研业务费项目(12QX04)。 The National Basic Research Program of China (973 Program)(2011CB209405)；Science and Technology Project of State Grid Corporation of China (SGKJJSKF[2009]776,2011) （973项目）
The Fundamental Research Funds for the Central Universities (12QX04) （12QX04）
