Application Research on Lightning Rod for Shielding Failure Prevention Based on JG and ZGUT Type Tower

Abstract:

After an analysis on the shielding failure trip of accidents of two kinds of tower type for JG and ZGUT in 220kA transmission line in Jiujiang,the main causes of shielding failure trip on the JG and ZGUT type tower which the protection angle of middle phase jumper of JG type tower and middle phase wire of ZGUT type tower are too large were summarized.The measures to prevent the JG and ZGUT type tower from shielding failure were proposed in which TH-lightning rod above cross arm of suspension point of the Jumper string of JG ype tower and the middle phase conductor of ZGUT type tower were reasonably installed.The measures prove to be an effective way.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 2139-2142
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.2139
• Online since: February 2013
• Authors: Ren Shan Yu, Zhen Wei Yang, Tao Jin
• Keywords: JG and ZGUT Type Tower, Lightning Rod, Shielding Failure, Transmission Line, TRIP

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