NDLI: Methodology of modern E-field calculations — Case study for insulated cross-arm

Content Provider	IEEE Xplore Digital Library
Author	Sidenvall, P. Gutman, I. Schulte-Fischedick, J. Seifert, J. Goffinet, J.-F.
Copyright Year	2013
Description	Author affiliation: Lapp Insulators, Germany (Seifert, J.) \|\| Elia, Belgium (Goffinet, J.-F.) \|\| STRI, Sweden (Sidenvall, P.; Gutman, I.; Schulte-Fischedick, J.)
Abstract	In the past superior pollution performance was the main driving force for composite insulator application, and therefore their use in polluted areas was considered as typical. Based on service experience surveys it is however found at present that in many countries composite insulators are installed in light polluted areas. In this case they are typically used in new, compact designs (insulated cross-arms, etc.). Therefore, insulators should be well protected from possible long-term ageing. Corona rings are used to grade the E-field along and around the insulator and normally are defined as grading rings. Both dry and water-induced corona activity might deteriorate the insulator and should be avoided at the design stage. Because of this, an important part of the development of new overhead line, equipped with composite insulators, is to verify that no corona activity will appear. This is done easiest by doing 3-D calculations with a FEM/BEM program. This article presents the results of typical case study for the rather complicated dual three phase tower structure (insulated cross-arm) and rather high AC voltage level (420 kV). The configuration also includes both grading rings and arcing horns. A comparison between electrical field calculations is presented for two different FEM/BEM programs, i.e. Comsol Multiphysics and Coulomb 3D. This paper also presents a need for laboratory test for the final verification of the insulation system design. Ideas on how this laboratory test, intended to reproduce water-induced corona, can be performed are listed.
Sponsorship	IEEE Dielectr. Electr. Insul. Soc.
Starting Page	334
Ending Page	337
File Size	293909
Page Count	4
File Format	PDF
ISBN	9781479925971
DOI	10.1109/CEIDP.2013.6748190
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulators Corona Fitting Metals Conductors Hardware Geometry
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in