A Novel Approach Toward Interpretation and Application of Voltage Unbalance Factor

Kini, Giridhar P and Bansal, Ramesh C and Aithal, Radhakrishna S (2007) A Novel Approach Toward Interpretation and Application of Voltage Unbalance Factor. IEEE Transactions on Industrial Electronics, 54 (4). pp. 2315-2322. ISSN 0278-0046

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Abstract

Voltage unbalance has been interpreted in a number of ways based on the conditions and complexities that are involved. This paper takes the widely used expression of voltage unbalance factor (VUF) and puts forward the various ambiguities that arise due to voltage variation and unbalance when applied to a test case. If the results are not properly interpreted, they affect decision making with regard to motor derating and protective system settings. It is also shown that various voltage combinations are possible for a particular VUF. By fixing an upper limit so as to signify the upper limit, a simple solution by way of conceptual interpretation is suggested to overcome the same. The discussion that is put forward is supported by a test case.

Item Type:	Article
Additional Information:	© 2011 IEEE
Uncontrolled Keywords:	IEEE standards, induction motor, International Electrotechnical Commission (lEC), National Electrical Manufacturers Association (NEMA), power quality (PQ), voltage unbalance, voltage unbalance factor (VUF).
Subjects:	Engineering > MIT Manipal > Electrical and Electronics
Depositing User:	MIT Library
Date Deposited:	08 Sep 2011 08:45
Last Modified:	08 Sep 2011 08:45
URI:	http://eprints.manipal.edu/id/eprint/1296

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