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The evaluation of quality of transformer oil by measuring capacitance

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dc.contributor.advisor Ahsan, Md. Quamrul Ahmed, Mukul Rakib, Md. Enamul Haque 2012-04-05T07:14:18Z 2012-04-05T07:14:18Z 2011 2011-12-15
dc.identifier.other ID 09221215
dc.identifier.other ID 09221170
dc.description This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2011.
dc.description Cataloged from PDF version of thesis report.
dc.description Includes bibliographical references (page 25).
dc.description.abstract Transformer oil plays an important role to keep transformer active and operate efficiently. It keeps transformer cool and works as an insulator between transformer windings and body. Due to arcing, corona discharge, low-energy sparking, severe overloading, pump motor failure and overheating in the insulating system are some of the possible mechanisms of degradation of transformer oil. This problems can increase water content, decrease dielectric strength, increase acidity or neutralization number(NN), increase or decrease interfacial tension (IFT) out of a specific range(40 to 50 dyne/cm), decrease quality index system (QQIN), and rapid increase in the amount of combustible gases, which can decrease the transformer life time and quality of service to consumer. There are several methods to identify and solve this problem. If this problem go in severe condition, it is not possible to solve without replacing by new one. May be there are different methods to check this problem but no specific method to check without taking oil outside the transformer. These methods are very expensive and time consuming. That’s why; our objective is to identify this problems as well as transformer condition without taking the oil outside by measuring the capacitance of the transformer. en_US
dc.description.statementofresponsibility Mukul Ahmed
dc.description.statementofresponsibility Md. Enamul Haque Rakib
dc.format.extent 34 pages
dc.language.iso en en_US
dc.publisher BRAC University en_US
dc.rights BRAC University thesis are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Electrical and electronic engineering
dc.title The evaluation of quality of transformer oil by measuring capacitance en_US
dc.contributor.department Department of Electrical and Electronic Engineering, BRAC University B. Electrical and Electronic Engineering

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