DocumentCode :
985570
Title :
Performances of distribution transformers installed in metallic enclosures-an Australian experience
Author :
Kalam, Akhtar ; Corhodzic, Selver
Author_Institution :
Fac. of Sci., Eng. & Technol., Victoria Univ., Melbourne, Vic., Australia
Volume :
20
Issue :
3
fYear :
2005
fDate :
7/1/2005 12:00:00 AM
Firstpage :
1970
Lastpage :
1975
Abstract :
In the last two decades, the Australian market has shown an increasing demand for packaged substations with three-phase distribution power transformers installed in metallic enclosures. The local electrical utilities and transformer manufacturers have developed many different designs based on unique specifications and a distinctive combination of construction features. Highly restrictive local environmental and urban planning regulations have resulted in the development of very compact packaged substations with extremely arduous service conditions for built-in transformers. The limited footprints and ever-increasing transformer ratings have resulted in reducing the ratio between the physical dimensions of the installed transformer and its rated power. This paper investigates Australian oil-immersed, ONAN cooled, and hermetically sealed distribution transformers rated 750-2000 kVA, highlighting their distinctive features: unique design, loading capability, reliability performances, and safety features. The paper is the result of extensive research conducted in a major Australian facility for the manufacturing and refurbishment of distribution transformers.
Keywords :
electricity supply industry; power distribution economics; power distribution reliability; power transformers; safety; town and country planning; transformer substations; 750 to 2000 kVA; Australian market; distribution transformer refurbishment; local electrical utility; metallic enclosures; reliability performances; safety features; sealed distribution transformers; three-phase distribution power transformers installation; transformer manufacturers; urban planning; Australia; Europe; Hermetic seals; Manufacturing; Packaging; Power transformers; Safety; Substations; Switchgear; Urban planning; Power distribution; power distribution economics; power transformers;
fLanguage :
English
Journal_Title :
Power Delivery, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8977
Type :
jour
DOI :
10.1109/TPWRD.2005.848661
Filename :
1458868
Link To Document :
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