向家坝—上海±800kV直流示范工程干式平波电抗器雷电冲击型式试验分析  

Analysis on Lightning Impulse Type Test for Dry-Type Smoothing Reactor of ±800 kV DC Transmission Demonstration Project From Xiangjiaba to Shanghai

作　　者：陕华平 彭晓莺[2] 吴巾克 李建建 常勇 

机构地区：[1]国网运行有限公司,北京市东城区100005 [2]湖北省电力试验研究院,湖北省武汉市430077

出　　处：《电网技术》2010年第5期12-15,共4页Power System Technology

摘　　要：介绍了向家坝—上海±800kV直流示范工程干式平波电抗器雷电冲击全波和截波试验的接线方法和试验程序,分析了顺次施加各种冲击电压时的电流峰值、波前时间、截断时间、过零系数等参数的特点,研究了试验回路的调整和布置对电压、电流波形及试验结果的影响,并给出波形曲线加以验证,结果表明,电抗器满足雷电冲击型式试验的要求。To validate the dry-type smoothing reactor for insulation performance of ±800kV DC Transmission Demonstration Project from Xiangjiaba to Shanghai, the wiring and test procedure for on-site full lightning impulse and chopped lightning impulse test of dry-type smoothing reactor are dissertated. The properties of the parameters, such as peak Current, wave front time, chopped time and zero crossing coefficient under various impulse voltages applied in proper sequence, are analyzed, and the impacts of adjustment and arrangement of testing circuit on voltage, current and test results are researched, meanwhile to validate these results related waveforms are given. Test results show that the dry-type smoothing reactor for ±800 kV DC Transmission Demonstration Project can meet the demand of lightning impulse type test.

关 键 词：800 kV特高压直流输电 干式平波电抗器 雷电 冲击全波 雷电冲击截波 过零系数 

分 类 号：TM83[电气工程—高电压与绝缘技术]