DocumentCode :
989256
Title :
Proposition of individual loading guide for power transformers
Author :
Tojo, Shinichi
Author_Institution :
A&S Eng. Co. Ltd., Tokyo, Japan
Volume :
21
Issue :
3
fYear :
2006
fDate :
7/1/2006 12:00:00 AM
Firstpage :
1383
Lastpage :
1389
Abstract :
Primary, secondary, electromagnetic core, and cooling material (oil or SF6 gas) temperature equations are developed and differentially calculated in varying load current and ambient temperatures in this paper. The winding hottest-spot temperature shall be integrated simultaneously for 24 h (one day) to acquire aging loss. Then, individual loading guides for power transformers are introduced and proposed as a new method for evaluating the transformers´ aging loss.
Keywords :
SF6 insulation; magnetic cores; power transformer insulation; transformer windings; SF6 gas; aging loss; cooling material; electromagnetic core; power transformers; winding hottest-spot temperature; Aging; Coils; Conductors; Cooling; Differential equations; Oil insulation; Petroleum; Power transformers; Temperature distribution; Transformer cores; Average coil winding temperature; life loss; loading capability; maximum coil-winding temperature; permissible load current; power transformer;
fLanguage :
English
Journal_Title :
Power Delivery, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8977
Type :
jour
DOI :
10.1109/TPWRD.2006.876979
Filename :
1645179
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=989256
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