GUID-6F26D761-CB1D-4D86-80AA-CEC95CEBC1A9 V2 EN
Figure 195: An example of a test mode situation where three-phase currents
are injected to the local end IED
GUID-21BCDEC5-2A22-4AEE-831E-BC8A72E40A64 V2 EN
Figure 196: Local and remote end currents presented in a web HMI of the IED
4.3.1.6 Application
LNPLDF is designed for the differential protection of overhead line and cable
feeders in a distribution network. LNPLDF provides absolute selectivity and fast
operating times as unit protection also in short lines where distance protection
cannot be applied.
LNPLDF provides selective protection for radial, looped and meshed network
topologies and can be used in isolated neutral networks, resistance earthed
networks, compensated (impedance earthed) networks and solidly earthed
1YHT530004D05 D Section 4
Protection functions
615 series 373
Technical Manual
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