NDLI: Wetting characteristics for kraft paper immersed in mineral and biodegradable insulation oils

Content Provider	IEEE Xplore Digital Library
Author	Suleiman, A.A. Nazri, F. Muhamad, N.A. Bashir, N. Mohamad, Z.
Copyright Year	2014
Description	Author affiliation: Inst. of High Voltage & High Current (IVAT), Univ. Teknol. Malaysia, Skudai, Malaysia (Suleiman, A.A.; Nazri, F.; Muhamad, N.A.; Bashir, N.; Mohamad, Z.)
Abstract	Moisture in power transformers are undesirable but yet unavoidable; hence necessitating its continuous study. The kraft paper of the oil filled transformer absorbs much of its moisture from the insulation oil in which it is immersed. The dielectric properties of the paper can be determined as a function of the wetting, penetration and saturation of the paper by the aqueous liquid in the oil. This paper compares the absorption characteristics of aqueous substances into kraft paper in two commercial insulation oils; palm based Palm Fatty Acid Ester (PFAE) biodegradable oil and petroleum based Hyrax Hypertrans mineral oil. Kraft paper thicknesses used in this study were varies from 0.2 mm to 0.5 mm and 1.0 mm. Test oil samples are taken directly from drum given by the suppliers. The study result shows that substances absorbed by kraft paper immersed in both insulation oils is dependent on paper thickness and chemical composition of the oils. The result shows that 0.2 mm thick paper absorbs the same aqueous percentage from both insulation oils irrespective of their constituent moisture content while the substance absorbed in both the 0.5 mm and 1.0 mm thick papers immersed in PFAE is higher that immersed in Hyrax Hypertrans by about 1%. It also shows that the rate of absorption reduces as the paper thickness increases. This concludes that irrespective of the high initial moisture content of PFAE being higher than that of Hyrax Hypertans, same aqueous substance is diffused into kraft paper.
Sponsorship	IEEE Malaysia Sect. PE Chapt.
Starting Page	194
Ending Page	198
File Size	346364
Page Count	5
File Format	PDF
e-ISBN	9781479924226
DOI	10.1109/PEOCO.2014.6814424
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-03-24
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulation Absorption Transformer Oils Wetting Moisture Oil insulation Kraft Paper Power transformer insulation
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

Moisture effect on conductivity of kraft paper immersed in power transformer vegetable-based insulation oils

Polarization and Depolarization Current (PDC) tests on biodegradable and mineral transformer oils at different moisture levels

Depletion rate of oxidation inhibitor in hydroprocessed mineral insulating oil and naphthenic oils

Comparison of AC breakdown characteristics on insulation paper (pressboard) immersed by three-element mixed insulation oil and mineral oil

Comparison of the drying times for kraft paper and pressboard in transformer factory drying

Moisture diffusion invegetable oil-paper insulation

Equilibrium charts for moisture in paper and pressboard insulations in mineral and natural ester transformer oils

A study on palm oil-based oil moisture absorption level and voltage breakdown

Investigating bubble formation in vegetable and mineral oil impregnated transformer paper insulation systems

Wetting characteristics for kraft paper immersed in mineral and biodegradable insulation oils

Similar Documents

Moisture effect on conductivity of kraft paper immersed in power transformer vegetable-based insulation oils

Polarization and Depolarization Current (PDC) tests on biodegradable and mineral transformer oils at different moisture levels

Depletion rate of oxidation inhibitor in hydroprocessed mineral insulating oil and naphthenic oils

Comparison of AC breakdown characteristics on insulation paper (pressboard) immersed by three-element mixed insulation oil and mineral oil

Comparison of the drying times for kraft paper and pressboard in transformer factory drying

Moisture diffusion invegetable oil-paper insulation

Equilibrium charts for moisture in paper and pressboard insulations in mineral and natural ester transformer oils

A study on palm oil-based oil moisture absorption level and voltage breakdown

Investigating bubble formation in vegetable and mineral oil impregnated transformer paper insulation systems

Wetting characteristics for kraft paper immersed in mineral and biodegradable insulation oils