International Journal of Engineering Research in Electrical and Electronic Engineering(IJEREEE)

Monthly Journal for Electrical and Electronic Engineering

International Journal of Engineering Research in Electrical and Electronic Engineering

Volume5 ,March 2018.

Volume5,March 2018,

Topic : A study of Change in Input Power Factor and Negative Sequence Current Component during Inter-Turn Fault in Dry Type Transformer

Authors:Rohit Kumar || Sarbesh Bhattacherjee, Prakash Kumar Mahto

Abstract:A power transformer is considered as an influential part of any power system network. The lifespan and performance of transformer mainly depends upon its load parameters. All industries necessitate reduction in cost of operation and maintenance of its equipment. A lot of techniques have been studied and developed concerning incipient fault detection in oil immersed transformer and dry type transformer for accomplishing its cost effective goals. From the analysis, inter turn faults has resulted in 70-75% transformer failures. Therefore, it becomes crucial to exterminate this fault at an initial stage henceforth saving transformer from severe faults, reducing outage time and loss of capital. In this present work a physical model of 10 KVA, 6600/550 Volt transformer is simulated in a power system using MATLAB/SIMULINK software. The experiment is performed at different percentages of inter-turn fault that is 1%, 3%, 5% and 10% on the secondary side of the multi-winding transformer and the change in power factor and negative sequence component of current is tabulated for corresponding fault. The present work is found beneficial in incipient fault detection in underground mines where only air cooled or dry type transformer is present and Buchholz Relay is absent to sense any emerging fault in the transformer.

Keywords: Incipient fault, Power Transformer, Multi-winding Transformer, Negative Sequence Current, Inter-turn fault.

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DOI: 01.1617/vol5/iss3/pid25196


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Editor-in-Chief
Dr.Krzysztof Chwastek
Associate Professor,
Czestochowa University of Technology, Polland.


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ISSN(Online): 2395-2717

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Journal Code : IJEREEE
Electronic ISSN : 2395-2717
Impact Factor : 3.784
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