No abstract

No abstract

No abstract

This paper proposes several algorithms to detect very resistive. permanent (i. e. non-transient) single-phase earth faults in compensated MV distribution systems and to identifi the faulty feeder. These algorithms analyse the varicition of the parameters of the system and of its electric steady-state quantities, in particular the residual currents of the feeders. In a first part, the impact of a resistive earth fault on these quantities is deduced. The algorithms enable a detection of permanent resistive earth faults of up to IOOkR and identib the concerned feeder. A verification of these algorithms W~J S possible by experiences.