Table 130: ZMRAPDIS (21) 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
PID-3545-SETTINGS v5
Table 131: ZDRDIR (21D) Group settings (basic)
Name Values (Range) Unit Step Default Description
IMinPUPP 5 - 30 %IB 1 10 Minimum pickup phase-phase current for
Phase-Phase loops
IMinPUPG 5 - 30 %IB 1 5 Minimum pickup phase current for Phase-
to-ground loops
AngNegRes 90 - 175 Deg 1 115 Angle of blinder in second quadrant for
forward direction
AngDir 5 - 45 Deg 1 15 Angle of blinder in fourth quadrant for
forward direction
Table 132: ZDRDIR (21D) 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
7.6.6 Operation principle
7.6.6.1 Full scheme measurement
GUID-4519D9AD-4446-48FC-86CC-140E5299AFB7 v1
The execution of the different fault loops within the IED are of full scheme type, which means that
each fault loop for phase-to-ground faults and phase-to-phase faults for forward and reverse
faults are executed in parallel.
Figure
122 presents an outline of the different measuring loops for up to five, impedance-
measuring zones. There are 3 to 5 zones depending on product type and variant.
1MRK 502 066-UUS B Section 7
Impedance protection
259
Technical manual
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