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The impulse grounding resistance of transmission lines tower has great influence on the lightning protection of transmission lines.Reducing the tower grounding resistance is an effective measure to reduce the lightning tripping rate.ATP-EMTP simulation and model tests are applied to study the lightning impulse characteristics of tower grounding device and an improved grounding device is designed.Comparison of the general devices,the simulation results show that the grounding device has better lightning protection impulse characteristics under the fixed covering area of grounding device.Thus,it can be used to improve the lightning protection of transmission line at the area with high soil resistivity.
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Basic Information:
DOI：10.20040/j.cnki.1000-7709.2013.08.048
China Classification Code:TM863
Citation Information:
[1]TAO Libing1,LIU Xun2,JIANG Shengchao2,SUN Fan3,CHENG Yang4(1.Quzhou Electric Power Bureau,Zhejiang Electric Power Company,Quzhou 324000,China,2.College of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China,3.Xinjiang Electric Power Research Institute,Xinjiang Electric Power Company,Urumchi 830000,China ,et al.Simulation and Model Tests of Lightning Impulse Characteristics of Transmission Lines Tower Grounding Device[J].Water Resources and Power,2013,31(08):166-169.DOI:10.20040/j.cnki.1000-7709.2013.08.048.
2013-08-25
2013-08-25