Phase-to-ground fault in forward direction
With reference to figure 106, the following equations for the setting calculations can be
obtained.
Index PHS in images and equations reference settings for Phase selection
with load encroachment function FDPSPDIS (21) and index Zm reference
settings for Distance protection function (ZMQPDIS, 21).
1MRK 506 369-UUS - Section 8
Impedance protection
Line distance protection REL670 2.2 ANSI 349
Application manual
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