GIS现场耐压试验方法及装置参数研究  

Researches on Field Voltage Test Methods and Device Parameters of GIS

作　　者：朱秦川 吴经锋 张璐 韩彦华 

机构地区：[1]国网陕西省电力公司,陕西西安710048 [2]国网陕西省电力公司电力科学研究院,陕西西安710100

出　　处：《电网与清洁能源》2017年第10期89-93,共5页Power System and Clean Energy

基　　金：国家电网公司科技项目(5226SX15001T)~~

摘　　要：对调频式串联谐振装置的基本原理进行了分析,在此基础上得到了串联谐振装置中的电抗器、电容分压器及试验变压器等的参数选择方法。计算表明,对于超高压GIS的现场耐压试验,串联电抗器值选择300 H^400 H,电容分压器值选为1000 pF,试验变压器输出电压选为40 kV,即可满足要求。330 kV GIS的耐压试验结果表明,被试品施加电压增大,试验回路品质因数减小,等效电阻增大。为保证串联谐振装置输出效率,应尽量减小试验回路中电晕损耗引起的等效电阻,以提高回路品质因数。The basic principle of frequency-regulated series resonant device was analyzed in this paper. On this basis, the parameters selection methods for reactor, capacitor voltage divider and test transformer in series resonant device were derived. The calculation results show that the value of series reactor can be selected as 300 H-400 H, the value of voltage divider can be selected as 1 000 pF, and the output voltage of transformer can be selected as 40 kV, which can meet the demands for field voltage test of EHV GIS. The voltage withstand test of 330 kV GIS shows that the quality factor of test circuit decreases and equivalent resistance increases with the increase of applied voltage on test sample. To raise the quality factor and guarantee the output efficiency of series resonant device, the equivalent resistance caused by corona loss should be decreased in test circuit.

关 键 词：气体绝缘开关设备 现场耐压 串联谐振装置 品质因数 电晕损耗 

分 类 号：TM595[电气工程—电器]