DocumentCode
1118328
Title
Self-load bank for UPS testing by circulating current method
Author
Chu, C.L. ; Chen, J.F.
Author_Institution
Dept. of Electr. Eng., Cheng Kung Univ., Tainan, Taiwan
Volume
141
Issue
4
fYear
1994
fDate
7/1/1994 12:00:00 AM
Firstpage
191
Lastpage
196
Abstract
For saving energy and reducing costs of the burn-in testing of an uninterruptible power supply (UPS) system, a self-load bank using the circulating method is proposed. The AC/DC power converter of the tested UPS itself is used as a nonlinear load, the tested current flow as a form of circulation, and the power of the tested load is controlled by a DC regulator also supplying the energy loss of the tested UPS. To test a linear load, a regulator is used to regulate the load characteristic. From the experimental results the energy saved in the burn-in test is approximately 80% of that lost by the conventional method, using a directly connected RLC or rectifier load
Keywords
load (electric); power convertors; test equipment; testing; uninterruptible power supplies; voltage regulators; AC/DC power converter; DC regulator; RLC; UPS; burn-in testing; circulating current method; costs; energy loss; energy savings; linear load; load characteristic; nonlinear load; rectifier; self-load bank; uninterruptible power supply;
fLanguage
English
Journal_Title
Electric Power Applications, IEE Proceedings -
Publisher
iet
ISSN
1350-2352
Type
jour
DOI
10.1049/ip-epa:19941208
Filename
296490
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