NDLI: Influence of altitude on radio interference level of AC power lines based on corona cage

Content Provider	IET Digital Library
Author	He, Wang ling He, Jun jia Wan, Bao quan Chen, Yu chao Pei, Chun ming Chen, Yu long
Abstract	To investigate the effect of altitude on radio interference (RI) of AC power lines, a corona cage test system was used to measure the RI excitation function values of different bundle conductors in different altitude locations, such as Wuhan 23 m, Jingyuan 1408 m, Xining 2261 m, Gonghe 2943 m and Yangbajain 4300 m. Then, the RI curves with different altitudes, bundle numbers and subconductor diameters were obtained. The analysis and comparison show that the actual RI altitude correction values fall in between the range of 1 dB/300 m and 40(1 − σ/σ 0) when the altitude below 3200 m, which is widely used as Italian correction term and Westinghouse correction term, respectively. Above this altitude, they are not applicable to predict the correction values. In this study, an RI correction term is proposed from the test results, which are fitted well for different altitude regions <4300 m.
Starting Page	861
Ending Page	865
Page Count	5
ISSN	17518822
Volume Number	9
e-ISSN	17518830
Issue Number	Issue 7, Oct (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-smt/9/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2014.0255
Journal	IET Science, Measurement & Technology
Publisher Date	2015-05-21
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A.c. Transmission AC Power Line Altitude Influence Bundle Conductor Conductors Conductors (electric) Corona Corona Cage Test System Electromagnetic Compatibility Gaseous Insulation, Breakdown And Discharges Interference Interference Suppression Power Transmission Cables Power Transmission Line Radio Frequency Interference Radio Interference Level RI Altitude Correction Value RI Curve RI Excitation Function Value Measure
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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