NDLI: AC (60 Hz) and impulse breakdown strength of a colloidal fluid based on transformer oil and magnetite nanoparticles

Content Provider	IEEE Xplore Digital Library
Author	Segal, V. Hjortsberg, A. Rabinovich, A. Nattrass, D. Raj, K.
Copyright Year	1998
Description	Author affiliation: Electr. Syst. Technol. Inst., ABB Power T&D Co., Raleigh, NC, USA (Segal, V.)
Abstract	A new class of colloidal dielectric fluids was developed by modifying the mineral oil based ferrofluids to enhance their dielectric performance. At its optimum composition, the colloidal insulation has AC (60 Hz) breakdown strength close to that of the carrier oil, while its impulse voltage withstand in needle to sphere geometry is improved: for the needle positive, the impulse breakdown voltage increased up to 50% as compared to the dry and degassed mineral oil (Exxon Univolt 60) while for the needle negative the breakdown value remains close to that of the oil carrier, so that the two values are practically equal. The PD inception voltage (AC, 60 Hz, 500 V/sec rise, needle to sphere geometry) showed and increase of up to 30%. The new colloidal insulation showed little change in electrical resistivity and kinematic viscosity after accelerated aging at 185/spl deg/C.
Starting Page	619
Ending Page	622
File Size	348878
Page Count	4
File Format	PDF
ISBN	078034927X
ISSN	1089084X
DOI	10.1109/ELINSL.1998.694869
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electric breakdown Petroleum Needles Breakdown voltage Minerals Dielectrics and electrical insulation Geometry Oil insulation Electric resistance Kinematics
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 strength of oil-immersed transformer insulation with superimposed AC and lightning impulse voltage

Comparative evaluation of dielectric strength of paper-oil insulation under ac, dc, combined, composite ac/dc and impulse voltages

Preparation and breakdown strength of TiO2 fluids based on transformer oil

Preparation and breakdown strength of Fe3O4 nanofluid based on transformer oil

Particle Effect on Breakdown Voltage of Mineral and Ester Based Transformer Oils

High voltage breakdown and pre-breakdown properties in rape-seed insulating oil

Breakdown processes in transformer insulation under LI voltages

Electrical properties of rape-seed oil

High Voltage Breakdown of Irradiated Transformer Oil

AC (60 Hz) and impulse breakdown strength of a colloidal fluid based on transformer oil and magnetite nanoparticles

Similar Documents

Dielectric strength of oil-immersed transformer insulation with superimposed AC and lightning impulse voltage

Comparative evaluation of dielectric strength of paper-oil insulation under ac, dc, combined, composite ac/dc and impulse voltages

Preparation and breakdown strength of TiO2 fluids based on transformer oil

Preparation and breakdown strength of Fe3O4 nanofluid based on transformer oil

Particle Effect on Breakdown Voltage of Mineral and Ester Based Transformer Oils

High voltage breakdown and pre-breakdown properties in rape-seed insulating oil

Breakdown processes in transformer insulation under LI voltages

Electrical properties of rape-seed oil

High Voltage Breakdown of Irradiated Transformer Oil

AC (60 Hz) and impulse breakdown strength of a colloidal fluid based on transformer oil and magnetite nanoparticles