DocumentCode
1181933
Title
Voltage unbalance in 3- and 4-wire delta secondary systems
Author
Smith, D.R. ; Braunstein, H.R. ; Borst, J.D.
Author_Institution
Westinghouse Electric Corp., Pittsburgh, PA, USA
Volume
3
Issue
2
fYear
1988
fDate
4/1/1988 12:00:00 AM
Firstpage
733
Lastpage
741
Abstract
An analytical method for finding voltage unbalance in 4-wire delta secondaries is introduced in which primary system voltage unbalance is represented, and the equation for total voltage unbalance at the load identifies the individual of unbalance. The effect of load representation, distribution transformer impedance, and primary system voltage unbalance is illustrated. It is shown that the open-wye-open-delta bank can magnify the voltage unbalance of a primary system, and that rolling phases might be a temporary solution to the voltage unbalance problem
Keywords
distribution networks; power systems; power transformers; delta secondary systems; distribution transformer impedance; load representation; open-wye-open-delta bank; power transformers; primary system; rolling phases; voltage unbalance; Circuits; Cities and towns; Conductors; Equations; Impedance; Induction motors; Reactive power; Rectifiers; Senior members; Voltage;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/61.4312
Filename
4312
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