NDLI: Short Circuit Study Incorporating Phase Shifting Components

Content Provider	IEEE Xplore Digital Library
Author	Roberge, R.M. Rhoda, R.G.
Copyright Year	1963
Abstract	A complete and comprehensive mathematical model of phase shifting components is developed using a delta-wye transformer bank as an example of a typical phase shifting component. Linear graph theory techniques are used to form the model which is called a V-equivalent. The V-equivalent is incorporated into the network matrix called ZBUS which is then used in the short circuit equations for a line-to-ground fault. In this paper, a numerical example utilizing a sample power system is used to illustrate the method by which the V-equivalent of a delta-wye transformer bank is incorporated into a digital computer program for short circuit studies. The results of the digital computer program demonstrate that, by the use of the V- equivalent, phase shifting components such as delta-wye transformers can be made an integral part of the power system model. A single line-to-ground fault can occur on either side of the delta-wye transformer bank, and the correct values of the currents and voltages at the fault and throughout the system can be obtained directly from the solution of the system model. No subsequent calculations are necessary to correct for the effect of the phase shift.
Starting Page	1101
Ending Page	1107
Page Count	7
File Size	1304066
File Format	PDF
ISSN	00189510
Volume Number	PAS-91
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1972-05-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system modeling Mathematical model Equations Circuit faults Power system faults Power system analysis computing Power engineering computing Power system relaying Power system simulation Admittance
Content Type	Text
Resource Type	Article
Subject	Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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