NDLI: Voltage sharing characteristics of V-type suspension ceramic insulator strings for UHV AC substation

Content Provider	IEEE Xplore Digital Library
Author	Qingyu Wang Jintao Liao He Li Xinzhuo Wei Zongren Peng
Copyright Year	2015
Description	Author affiliation: State Key Lab. of Electr. Insulation & Power Equip., Xi'an Jiaotong Univ., Xi'an, China (Qingyu Wang; Jintao Liao; He Li; Xinzhuo Wei; Zongren Peng)
Abstract	Owing to the high voltage level, complex tower and insulator string structures, short phase distance and various arrangement forms of insulator string, the potential and electric field distribution of the insulator strings in 1000kV substation are more severe than that in transmission lines, and the voltage sharing characteristics of the insulator strings need to be researched deeply. With three dimensional finite element method, considering the influence of the tower, conductors, fittings and the interaction of three phases, this paper calculate the potential and electric field distribution of the V-type suspension ceramic insulator strings in 1000kV substation. The influence of grading ring, suspension status and mounting type to the potential distribution of insulator string is researched, the parameters of the grading ring including the diameter of grading ring, the mounting height of grading ring, and the tube diameter of grading ring are optimized, finally, the proper configuration of the grading ring applied to V-type suspension ceramic insulator strings in 1000kV substation was suggested. The research achievements by this paper have been successfully applied on the ultra high voltage (UHV) AC pilot project in China with great practical value to raise the reliability of the insulators and improve the electromagnetic environment in the 1000kV substations.
Starting Page	580
Ending Page	583
File Size	2635845
Page Count	4
File Format	PDF
ISSN	21609241
e-ISBN	9781479989034
DOI	10.1109/ICPADM.2015.7295338
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-19
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulators Suspensions Electric fields Conductors Electric potential Poles and towers Substations grading ring UHVAC ceramic insulators voltage-sharing characteristics finite element method voltage distribution
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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