NDLI: Accurate temperature correction of dissipation factor data for oil-impregnated paper insulation bushings: Field experience

Content Provider	IEEE Xplore Digital Library
Author	Robalino, D.M.
Copyright Year	2011
Description	Author affiliation: MEGGER - AVO Multiamp, Dallas, TX, USA (Robalino, D.M.)
Abstract	Typically, dissipation factor (DF) or power factor (PF) test is carried out in the field following well known procedures. It is not necessary to emphasize the importance of dielectric test for power system operators. Accurate recording of insulation temperature values during the test is critical but not always feasible in the field. DF measured values are later normalized to a 20°C base for future comparison and trending. Nevertheless, as stated in several international publications, accuracy of temperature correction is still under investigation because temperature correction factors (TCF) from reference tables do not consider the percentage moisture concentration of the insulation system. The existing Temperature Correction Tables correspond to a variety of insulation materials and construction of different high voltage electrical equipment and components. Therefore, the application of state-of-the-art technologies to determine “specific” temperature correction factors for DF, is essential to provide reliable interpretation of results and proper equipment condition assessment. Frequency Domain Spectroscopy (FDS) in conjunction with DF Analysis are a powerful tool to determine the percentage moisture concentration in solid insulation capable to estimate Individual Temperature Compensation (ITC) of DF measured data of power transformers. Throughout this document, field experience is summarized when a three-winding transformer is removed from service and put to a series of testing procedures including DF, FDS and tip-up test on the high voltage bushings. Results of the analysis, experimental data and conclusions made based on the obtained results are presented herein.
Sponsorship	DEI
Starting Page	251
Ending Page	254
File Size	596424
Page Count	4
File Format	PDF
ISBN	9781457709852
ISSN	00849162
e-ISBN	9781457709869
DOI	10.1109/CEIDP.2011.6232644
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-16
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Insulators Temperature Dielectrics Power transformers Testing insulation thermal factors Bushings composite insulation electrical insulation frequency response insulation testing
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

Dielectric response measurements at high voltage bushings

Condition assessment of oil-paper insulated bushings

Temperature and thermal aging effects on the Frequency Domain Spectroscopy measurement of oil-paper insulation

Temperature distribution in resin impregnated paper insulation for transformer bushings

Impact of temperature on the frequency domain dielectric spectroscopy for the diagnosis of power transformer insulation

On the life estimation of oil impregnated paper insulated transformer bushings

The transport of copper through oil-impregnated paper insulation in electrical current transformers and bushings

Dielectric frequency response measurement as a tool for troubleshooting insulation power factor problems

Influence of Temperature and Moisture on the Dielectric Response of Oil-Paper Insulation System

Accurate temperature correction of dissipation factor data for oil-impregnated paper insulation bushings: Field experience

Similar Documents

Dielectric response measurements at high voltage bushings

Condition assessment of oil-paper insulated bushings

Temperature and thermal aging effects on the Frequency Domain Spectroscopy measurement of oil-paper insulation

Temperature distribution in resin impregnated paper insulation for transformer bushings

Impact of temperature on the frequency domain dielectric spectroscopy for the diagnosis of power transformer insulation

On the life estimation of oil impregnated paper insulated transformer bushings

The transport of copper through oil-impregnated paper insulation in electrical current transformers and bushings

Dielectric frequency response measurement as a tool for troubleshooting insulation power factor problems

Influence of Temperature and Moisture on the Dielectric Response of Oil-Paper Insulation System

Accurate temperature correction of dissipation factor data for oil-impregnated paper insulation bushings: Field experience