Experimental measurement, analysis and prediction of electric and magnetic fields in open type air substations

作者:
CP NicolaouAP PapadakisPA RazisGA KyriacouJN Sahalos

关键词:
Electric and magnetic field measurements Experimental modeling Open type air substations International Commission on Non-Ionizing Radiation Protect...

摘要:
In this paper, the electric and magnetic flux density values in open type air substations are analyzed. For this reason, an extensive measurement survey was conducted to identify potential large sources of electric and magnetic fields within seven 132/1102kV open type air substations always having them compared with the International Commission Non Ionizing Radiation Protection (ICNIRP) safety guidelines published in 1998. The maximum electric and magnetic flux density values obtained in the open air circuitry units are found to be 7696 and 7306.502V02m 611 and 45.89, 38.11, 35.3002μT, which are 1.30, 1.37, and 10.9, 11.3, 14.1 times below the safety guidelines of the ICNIRP. In one of the coil rooms, the magnetic flux density was found to be 6.26 times above the safety guidelines, constituting an immediate threat to working personnel of the substation. Furthermore, a simplistic theoretical methodology based on experimental measurements is proposed that establishes a linear correlation between the transformer current and the maximum magnetic flux density based on Biot–Savart law, provided that the distance from the source remains constant, to predict the magnetic flux density by extrapolation to the permitted and nominal currents and compare them to the safety guidelines of the ICNIRP.

在线下载

相关文章:
在线客服:
对外合作:
联系方式:400-6379-560
投诉建议:feedback@hanspub.org
客服号

人工客服,优惠资讯,稿件咨询
公众号

科技前沿与学术知识分享