Efficiency of admittance relays during faults with high fault resistance values in MV networks
[ 1 ] Instytut Elektroenergetyki, Wydział Elektryczny, Politechnika Poznańska | [ P ] employee
2005
paper
english
- overcurrent protection
- power distribution protection
- power system reliability
- protective relaying
- fault currents
- industrial power system faults
- power distribution faults
- power system faults
- power distribution lines
EN In this paper efficiency of the different types of the admittance criteria is described during faults with high value of the fault resistance. The two types of fault are considered: high-ohm resistance in the fault loop and unbalance of the phase load caused by discontinuity of the line feeder with simultaneous occurrence of the ground-fault located behind the gap. Values of the zero sequence signals of current and voltage during those types of faults are shown.
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