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Analysis of Voltage Sag Measurement Algorithm

Author : G. Justin Sunil Dhas, T. Ruban Deva Prakash

Pages : 215-218
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This paper analyzes accuracy of algorithms commonly adopted in instrument devoted to the detection and the characterization of voltage dips (also called sags). This analysis is particularly interesting because the results of dip measurements are utilized for calculation of severity levels and the site index assessment that are parameters adopted in determination of quality level of power supply, but also in developing planning and design criteria of new electrical power grid or for selecting equipment with proper intrinsic immunity. Anyway there is a certain degree of freedom left to instrument manufacturers and it can be found that different instruments significantly disagree in some actual measurements. The paper analyses voltage sag measurement algorithm.


Keywords: Voltage sag, Power Quality Measurement, Accuracy analysis


Article published in International Journal of Current  Engineering  and Technology, Vol.2,No.1 (March- 2012)





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