NDLI: Measuring temperature rise at transformer core under nonlinear loading

Content Provider	IEEE Xplore Digital Library
Author	Masri, S. Azizan, M.M. Mohamad Kamarol, M.J.
Copyright Year	2011
Description	Author affiliation: Department of Electrical Engineering, School of Electrical and Electronics Engineering, Universiti Sains Malaysia Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia (Masri, S.; Azizan, M.M.; Mohamad Kamarol, M.J.)
Abstract	The life of power distribution transformers has been greatly reduced by the significantly addition of electronic loads in the distribution system. The characteristics of loads now becoming more nonlinear which in turn produce more harmonics. Power transformers are constantly affected due to its location between the variety of loads at consumer's side and the power supply side. Additional loss at transformer core caused by harmonics is translated by the increasing heating it experienced. This paper focuses on measuring temperature of the core as transformer is connected with nonlinear loads. A circuit producing harmonic rich load current is subjected to 75VA power transformer. Tests are conducted at 100% of nameplate rating using purely resistive loads and by connecting nonlinear loads. Differences in type of loads are made in order to magnify the additional heat effect of harmonics in power transformer operation. Laser radiating thermal device is used to measure heat at three different points.
Starting Page	333
Ending Page	337
File Size	694373
Page Count	5
File Format	PDF
ISBN	9781612842295
e-ISBN	9781612842301
DOI	10.1109/INECCE.2011.5953902
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-21
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Harmonics Current measurement Heating Transformer cores Power system harmonics Transformer Heating Harmonic analysis Nonlinear Loads Power transformers Current Distribution Transformer
Content Type	Text
Resource Type	Article

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