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In order to reduce customer hours lost (CHL) and customer interruptions (CI), the use of Faulted Phase Earthing (FPE) is being considered on the Irish 20kV distribution system. The operation of this particular FPE system is enabled by the use of a custom built Earth Fault Controller (EFC) that has the ability to detect high impedance faults of up to 12kµ. The EFC can also successfully identify single...
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