Table 78: ZDARDIR Output signals
Name Type Description
STFWPE BOOLEAN Forward start signal from phase-to-ground
directional element
STRVPE BOOLEAN Reverse start signal from phase-to-ground
directional element
DIREFCND INTEGER Start direction Binary coded
7.2.5 Settings
Table 79: ZDMRDIR Group settings (basic)
Name Values (Range) Unit Step Default Description
DirEvalType Impedance
Comparator
Imp/Comp
-
- Comparator Directional evaluation mode Impedance /
Comparator
ArgNegRes 90 - 175 Deg 1 115 Angle of blinder in second quadrant for
forward direction
ArgDir 5 - 45 Deg 1 15 Angle of blinder in fourth quadrant for
forward direction
IMinOpPE 5 - 30 %IB 1 5 Minimum operate phase current for
Phase-Earth loops
IMinOpPP 5 - 30 %IB 1 10 Minimum operate phase-phase current
for Phase-Phase loops
Table 80: ZDMRDIR Non group settings (basic)
Name
Values (Range) Unit Step Default Description
GlobalBaseSel 1 - 12 - 1 1 Selection of one of the Global Base Value
groups
Table 81: ZDARDIR Group settings (basic)
Name
Values (Range) Unit Step Default Description
PolMode -3U0
-U2
IPol
Dual
-3U0Comp
-U2comp
-
- -3U0 Polarization quantity for opt dir function for
P-E faults
AngleRCA -90 - 90 Deg 1 75 Characteristic relay angle (= MTA or base
angle)
I> 5 - 200 %IB 1 5 Minimum operation current in % of IBase
UPol> 4 - 100 %UB 1 4 Minimum polarizing voltage in % of UBase
IPol> 5 - 100 %IB 1 10 Minimum polarizing current in % of IBase
1MRK502052-UEN B Section 7
Impedance protection
199
Technical manual