NDLI: Electric field homogenization for converter transformer with nano modified pressboard

Content Provider	IEEE Xplore Digital Library
Author	Xiangli Zhu Ge Minghe Chi Xinyu Wang Heqian Liu
Copyright Year	2015
Description	Author affiliation: MOE Key Lab. of Eng. Dielectr. & Its Applic., Harbin Univ. of Sci. & Technol., Harbin, China (Xiangli Zhu Ge; Minghe Chi; Xinyu Wang; Heqian Liu)
Abstract	The oil/pressboard insulation system in converter transformer undertakes AC superimposed DC and polarity reversal voltages in operation. In order to match the conductivity of oil and pressboard to reduce the differences of field intensity between in oil and in pressboard under direct current and polarity reversal voltages, and also to improve the space charge characteristics at oil/pressboard interface, the modification method with nonlinear nano SiC (the silicon carbide with the diameter of 60 nanometers) for pressboard was put forward. The samples doped with different mass fractions of nanoparticles were manufactured, and their dielectric properties were studied in laboratory. At the same time, the simplest model of oil/pressboard structure was built and the simulations of electric field distribution and space charge characteristics at oil/pressboard interface were carried out to inspect the influence of pressboard modification on them. The experiment results show that the mass fraction of nanoparticle has little influence on the permittivity of samples, and the permittivity almost keeps constant with the applied electric field intensity increasing. The conductivity of the samples rises rapidly with the nanoparticle mass fraction increasing, and it shows obvious nonlinearity with the electric field intensity when the nanoparticles mass fraction exceeds a certain ratio. The simulation results show that with nano modified pressboard, the field distribution in oil-pressboard system is more uniform under direct current or polarity reversal voltages, and the space charge characteristics at the oil/pressboard interface in converter transformer can be well improved under polarity reversal voltage.
Starting Page	44
Ending Page	47
File Size	1328198
Page Count	4
File Format	PDF
ISSN	21609241
e-ISBN	9781479989034
DOI	10.1109/ICPADM.2015.7295204
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	Electric fields Space charge Nanoparticles Conductivity Oil insulation Power transformer insulation Permittivity space charge nanometer SiC converter transformer oil/pressboard structure electric field distribution
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

An investigation on the parameters affecting the conductivity of pressboard in oil by measuring leakage current under DC

Analysis of the dielectric and breakdown characteristics of Nano MMT modified insulation pressboard

Charge behavior in Palm Fatty Acid Ester Oil (PFAE) / pressboard composite insulation system under voltage application

Space charge dynamics in pressboard-oilpressboard multilayer system under DC voltages

Influential factor analysis and computation on electric field of converter transformer barrier

Effect of nanoparticles on electrical characteristics of transformer oil-based nanofluids impregnated pressboard

Influence of oil-flow to the breakdown characteristics of oil-pressboard insulation in converter transformer under compound electrical field

Simulation of distribution of space charge in ±500kV converter transformer in DC tests

Evolution of the electric field due to forced flow in oil pressboard ducts

Electric field homogenization for converter transformer with nano modified pressboard

Similar Documents

An investigation on the parameters affecting the conductivity of pressboard in oil by measuring leakage current under DC

Analysis of the dielectric and breakdown characteristics of Nano MMT modified insulation pressboard

Charge behavior in Palm Fatty Acid Ester Oil (PFAE) / pressboard composite insulation system under voltage application

Space charge dynamics in pressboard-oilpressboard multilayer system under DC voltages

Influential factor analysis and computation on electric field of converter transformer barrier

Effect of nanoparticles on electrical characteristics of transformer oil-based nanofluids impregnated pressboard

Influence of oil-flow to the breakdown characteristics of oil-pressboard insulation in converter transformer under compound electrical field

Simulation of distribution of space charge in ±500kV converter transformer in DC tests

Evolution of the electric field due to forced flow in oil pressboard ducts

Electric field homogenization for converter transformer with nano modified pressboard