NDLI: Potential distribution computation and structure optimization for composite cross-arms in 750 kV AC transmission line

Content Provider	IEEE Xplore Digital Library
Author	Xi Yang Naiyi Li Zongren Peng Jintao Liao Qingyu Wang
Copyright Year	1994
Abstract	As composite cross-arm will be used in domestic 750 kV AC transmission line for the first time, careful and meticulous preparatory work is highly needed. Using a three-dimension (3-D) finite-element method (FEM) software, this paper presents computation results of the potential and electric field distribution for composite crossarms in the process of structure optimization. Several optimization programs for composite cross-arm have been studied and the final design is made to omit the suspension insulator string, to increase the length of post insulators and to configure suitable grading and shielding rings based on preliminary design. A set of grading and shielding rings configuration program has been proposed. The comparison between optimized composite cross-arms and 750 kV line composite insulators indicates that composite cross-arms have better potential distribution. The electric tests demonstrate that optimized composite cross-arms have good electrical performance and can meet operation requirements.
Sponsorship	National Natural Science Foundation of China (NSFC) Region Centre Ville de Tours Conseil General D'Indre et Loire ABB IEEE Sandia National Laboratories TOSHIBA
Starting Page	1660
Ending Page	1669
Page Count	10
File Size	1713694
File Format	PDF
ISSN	10709878
Volume Number	21
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulators Suspensions Electric potential Finite element analysis Flanges Poles and towers Optimization grading and shielding rings. Composite cross-arms potential distribution structure optimization electric field 750 kV AC finite element method (FEM)
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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