NDLI: Characterization of a severely degraded silicone elastomer HV insulator-an aid to development of lifetime assessment techniques

Content Provider	IEEE Xplore Digital Library
Author	Liu, H. Cash, G. Birtwhistle, D. George, G.
Copyright Year	1994
Abstract	A high voltage composite insulator showed severe degradation and failure of the silicone elastomer sheds following service in a substation environment. Sensitive analytical techniques were used to investigate the extent of degradation of the silicone elastomer (SiE). The polymer content of some surface regions decreased as degradation increased. This was quantified through observation by scanning electron microscopy (SEM), weight loss upon heating using thermogravimetric analysis (TGA), determination of surface "silica" levels in damaged areas by X-ray photoelectron spectroscopy (XPS) and Raman mapping through a cross-section of the elastomer producing a degradation depth profile. It is believed that due to the environmental conditions at the site of installation, the electric field may have reached corona onset threshold on parts of the elastomer surface. Because of the moist conditions the corona was maintained, effectively preventing the elastomer from regaining hydrophobicity and leading in time to severe degradation. This investigation has also identified techniques applicable to the assessment of condition of other, less damaged SiE insulators which may in turn lead to the prediction of the remaining useful lifetime.
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	478
Ending Page	486
Page Count	9
File Size	2619833
File Format	PDF
ISSN	10709878
Volume Number	12
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulation Scanning electron microscopy Spectroscopy Corona Voltage Substations Polymers Thermal degradation Photoelectron microscopy Heating
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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

In-situ and quantitative analysis of aged silicone rubber materials with laser-induced breakdown spectroscopy

Surface recovery of silicone rubber used for HV outdoor insulation

Lifetime prediction of HV silicone rubber insulators based on mechanical tests after thermal ageing

Comparative study of AC and DC inclined plane tests on silicone rubber (SiR) insulation

Tracking, erosion and thermal distribution of micro-AlN + nano-SiO2 co-filled silicone rubber for high-voltage outdoor insulation

A new approach to anti-fog design for polymeric insulators

Corona Discharge Characteristics in Airflow Containing Siloxane Vapor

A novel technique to evaluate the erosion resistance of silicone rubber composites for high voltage outdoor insulation using infrared laser erosion

Effect of mineral oil on flashover voltage of HTV silicone rubber under AC corona ageing: from the view of trap level distribution

Characterization of a severely degraded silicone elastomer HV insulator-an aid to development of lifetime assessment techniques

Similar Documents

In-situ and quantitative analysis of aged silicone rubber materials with laser-induced breakdown spectroscopy

Surface recovery of silicone rubber used for HV outdoor insulation

Lifetime prediction of HV silicone rubber insulators based on mechanical tests after thermal ageing

Comparative study of AC and DC inclined plane tests on silicone rubber (SiR) insulation

Tracking, erosion and thermal distribution of micro-AlN + nano-SiO2 co-filled silicone rubber for high-voltage outdoor insulation

A new approach to anti-fog design for polymeric insulators

Corona Discharge Characteristics in Airflow Containing Siloxane Vapor

A novel technique to evaluate the erosion resistance of silicone rubber composites for high voltage outdoor insulation using infrared laser erosion

Effect of mineral oil on flashover voltage of HTV silicone rubber under AC corona ageing: from the view of trap level distribution

Characterization of a severely degraded silicone elastomer HV insulator-an aid to development of lifetime assessment techniques