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CALCULATION OF FAULT CURRENTS IN POWER DISTRIBUTION NETWORKS GROUNDED WITH PETERSEN COIL


GHEORGHE HAZI 1, ANETA HAZI 1, SORIN-GABRIEL VERNICA 1
1. “Vasile Alecsandri”University of Bacău, Calea MărăƟeƟti 156,Bacău, 600115, Romñnia

Issue:

PLUMEE, Number 1, Volume I

Section:

Issue No. 1 - Volume 3(2013)
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Abstract:

The paper presents a methodology for more precise determination of earth currents in networks grounded with Petersen coil. This calculation is necessary to establish the directional zero sequence overcurrent relay settings, which are sensitive to these types of faults. Is present the voltage and current determination at the fault place and at the protection installing place. All analyzes are based on a concrete example, using a power distribution networks of 20 kV cable lines.

Keywords:

earth fault currents, Petersen coil, zero sequence current.

Code [ID]:

PLUMEE201301V01S01A0023 [0003979]

DOI:

Full paper:

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