ABB Relion 670 series - Full Scheme Measurement; Monitored Data; Operation Principle

PID-3545-SETTINGS v5
Table 89: 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 90: 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
7.1.6 Monitored data
PID-3545-MONITOREDDATA v5
Table 91: ZDRDIR (21D) Monitored data
Name Type Values (Range) Unit Description
A_Dir INTEGER 1=Forward
2=Reverse
0=No direction
- Direction in phase A
B_Dir INTEGER 1=Forward
2=Reverse
0=No direction
- Direction in phase B
C_Dir INTEGER 1=Forward
2=Reverse
0=No direction
- Direction in phase C
Aph_R REAL - Ohm Resistance in phase A
Aph_X REAL - Ohm Reactance in phase A
Bph_R REAL - Ohm Resistance in phase B
Bph_X REAL - Ohm Reactance in phase B
Cph_R REAL - Ohm Resistance in phase C
Cph_X REAL - Ohm Reactance in phase C
7.1.7 Operation principle
7.1.7.1 Full scheme measurement
M16923-92 v4
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.
1MRK 502 066-UUS B Section 7
Impedance protection
183
Technical manual