NDLI: Fault location analysis of ungrounded distribution system based on residual voltage distribution

Content Provider	IEEE Xplore Digital Library
Author	Hongbo Sun Nikovski, D. Takano, T. Kojima, Y. Ohno, T.
Copyright Year	2013
Description	Author affiliation: Mitsubishi Electr. Res. Labs., Cambridge, MA, USA (Hongbo Sun; Nikovski, D.) \|\| Mitsubishi Electr. Corp., Amagasaki, Japan (Takano, T.; Kojima, Y.; Ohno, T.)
Abstract	This paper proposes a new method for determining the location of single-phase-to-ground faults of ungrounded distribution systems based on residual voltage distribution. The possible faulted line segment and fault location are determined by comparing the phase angles of faulted phase voltages against a faulted phase reference angle, and the faulted phase voltages are determined as the difference between the fault caused residual voltage of all phases and the shunt caused residual voltage of un-faulted phases. The method determines the fault location solely based on the voltages and currents measured during the fault, and associated series impedance and shunt impedances of line segments. It does not require any measurements or information for the load demands and prefault conditions. Numerical examples are given to demonstrate the effectiveness of the proposed method.
Starting Page	1
Ending Page	6
File Size	1247008
Page Count	6
File Format	PDF
ISBN	9781479912551
DOI	10.1109/NAPS.2013.6666855
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage measurement Current measurement Circuit faults Vectors Phase measurement Fault location Substations
Content Type	Text
Resource Type	Article

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