Onsite Measurement and Analysis of Transmission Line Electromagnetic Environment for UHV AC Demonstration Project

doi:10.11930/j.issn.1004-9649.201607110

Abstract

Abstract: In order to obtain the actual level of electromagnetic environment on 1 000 kV Jindongnan-Jingmen-Nanyang UHV AC transmission lines in the demonstration project, the indexes of electromagnetic environment along the transmission lines at the early stage of the operation were measured, which include 34 electromagnetic environment-sensitive targets, lines across roads and railways, macaques protection areas, angle towers, typical cross sections and so on. this study compared the measured data of the power frequency electric field, magnetic induction intensity, the level of audible noise and radio interference level with the control indexes. the results show that the level of electromagnetic environment around 1 000 kV Jindongnan-Jingmen-Nanyang lines is basically the similar level to those around 500 kV AC transmission lines which means the main index of electromagnetic environment has met the approval requirements of environmental protection.

Key words: UHV, 1 000 kV AC transmission lines, electromagnetic environment, power frequency electric field, audible noise, radio interference

CLC Number:

TM723

LIU Lina, TAO Jiaxiang, ZHANG Yemao, XIE Huichun, YU Jianqin, GONG Wenjia. Onsite Measurement and Analysis of Transmission Line Electromagnetic Environment for UHV AC Demonstration Project[J]. Electric Power, 2017, 50(10): 46-51.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201607110

https://www.electricpower.com.cn/EN/Y2017/V50/I10/46

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