DocumentCode :
1019892
Title :
Analysis of Short Circuits for Distribution Systems
Author :
Dalziel, Charles F.
Author_Institution :
Associate professor in the department of electrical engineering and supervisor of engineering science and management, war training, University of California, Berkeley, Calif.
Volume :
61
Issue :
10
fYear :
1942
Firstpage :
757
Lastpage :
764
Abstract :
This paper presents a discussion and analysis of short circuits for low-voltage distribution systems. Many distribution systems are supplied from transformers connected in delta on the low-voltage side with the mid-tap of one secondary winding, or with one corner of the delta, connected to ground. As a result, short circuits on these systems often involve failure to ground, and an accurate analysis for these faults is of value. An original analysis of power-leg-to-ground and light-leg-to-ground short circuits is presented together with formulas for line-to-line and three-phase faults. A study of short circuits on the secondary circuits of single-phase transformers supplied from three-phase systems is also included, thereby giving a comprehensive treatment of includes a discussion of the effects of resistance in limiting short-circuit currents and the voltage rise of the secondary neutral above ground potential caused by transformer failure and resistance to ground.
Keywords :
Circuit analysis; Circuit faults; Failure analysis; Fault currents; Fires; Hazards; Impedance; Phase transformers; Protection; Voltage;
fLanguage :
English
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
Publisher :
ieee
ISSN :
0096-3860
Type :
jour
DOI :
10.1109/T-AIEE.1942.5058438
Filename :
5058438
Link To Document :
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