Authors: Gomez, J.¹; Morcos, M.²

Source: Electric Power Components and Systems, Volume 34, Number 10, October 2006 , pp. 1157-1161(5)

Publisher: Taylor and Francis Ltd

Abstract:

Overcurrent protection must be done taking power quality (PQ) issues into account. A new methodology is presented, which allows the transformation of the voltage/ time immunity curve into a current/ time curve that can be easily coordinated with the normal time/ current characteristic (TCC) of protective devices. The presence of transformers changes the voltage-sag magnitude, which can be considered in the proposed methodology.

Keywords: overcurrent protection; power quality; voltage sags

Document Type: Research article

DOI: http://dx.doi.org/10.1080/15325000600630350

Affiliations: 1: Electric Power Systems Protection Institute, Rio Cuarto National University, Rio Cuarto, Argentine 2: Department of Electrical and Computer Engineering, Kansas State University, Manhattan, Kansas, USA

Publication date: 2006-10-01

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