Stabilized restricted earth-fault protection (LREFPNDF) main settings - Arc protection - Merging unit - Transformer protection - 2 winding - Product Guide - RET615 Transformer Protection and Control - Relion 615 series - 5.0 FP1 IEC - IEC - 24.05.2023

RET615 Product Guide

Table 1. Stabilized restricted earth-fault protection (LREFPNDF) main settings
Parameter Function Value (Range) Step
Operate value LREFPNDF 5...50 %I n 1
Minimum operate time LREFPNDF 40...300000 ms 1
Restraint mode LREFPNDF

1 = None

2 = Harmonic2

-
Start value 2.H LREFPNDF 10...50% 1
Operation LREFPNDF

1 = on

5 = off

-