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期刊论文

Overvoltage Suppression for UHV Transmission Lines*

李永丽LI Yongli LIU Taihua LI Zhongqing JING Lei LONG Ying FAN Jianzhong

Trans. Tianjin Univ. 2008, 14: 222-225,-0001,():

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摘要/描述

The overvoltage phenomena of ultra high voltage (UHV) transmission lines are analyzed and verified by EMTDC/PSCAD simulation. Referring to the theoretical analyses and operating ex-periences of extra high voltage (EHV) transmission lines in China and UHV transmission lines in Russia and Japan, the methods to suppress the internal overvoltage in UHV transmission lines by protection and control strategies are discussed. Through the cooperation among the recloser, shunt reactor, tripping and closing resistance, and metal oxide varistor(MOV), the overvoltage can be re-strained within an acceptable level.

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