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Reseach Article

Prediction of Transformer Insulation Life with an Effect of Environmental Variables

by M. Srinivasan, A. Krishnan
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 55 - Number 5
Year of Publication: 2012
Authors: M. Srinivasan, A. Krishnan
10.5120/8755-2658

M. Srinivasan, A. Krishnan . Prediction of Transformer Insulation Life with an Effect of Environmental Variables. International Journal of Computer Applications. 55, 5 ( October 2012), 43-48. DOI=10.5120/8755-2658

@article{ 10.5120/8755-2658,
author = { M. Srinivasan, A. Krishnan },
title = { Prediction of Transformer Insulation Life with an Effect of Environmental Variables },
journal = { International Journal of Computer Applications },
issue_date = { October 2012 },
volume = { 55 },
number = { 5 },
month = { October },
year = { 2012 },
issn = { 0975-8887 },
pages = { 43-48 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume55/number5/8755-2658/ },
doi = { 10.5120/8755-2658 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:56:32.025643+05:30
%A M. Srinivasan
%A A. Krishnan
%T Prediction of Transformer Insulation Life with an Effect of Environmental Variables
%J International Journal of Computer Applications
%@ 0975-8887
%V 55
%N 5
%P 43-48
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The Hot Spot Temperature (HST) value depends on the ambient temperature, the rise in the top oil temperature (TOT) over the ambient temperature, and the rise in the winding HST over the top oil temperature. In this paper a new semi-physical model comprising of the environmental variables for the estimation of HST and loss of insulation life in transformer is proposed. The winding hot-spot temperature can be calculated as a function of the top-oil temperature that can be estimated using the transformer loading data, top oil temperature lagged regressor value, ambient temperature, wind velocity and solar heat radiation effect. The estimated HST is compared with measured data of a power transformer in operation. The proposed model has been validated using real data gathered from a 100 MVA power transformer.

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Index Terms

Computer Science
Information Sciences

Keywords

Hot Spot Temperature - Top Oil Temperature - Insulation Life – Semiphysical model