ABB RER620

Section 4 1MAC309294-MB F
Protection functions
116 RER620
Technical Manual
Figure 54: Closed ring network topology where feeding lines are protected with
directional overcurrent relays
4.1.2.8 Signals
Table 132: 67/51P-1 and 67/50P-1 Input signals
Name Type Default Description
I_A SIGNAL 0 Phase A current
I_B SIGNAL 0 Phase B current
I_C SIGNAL 0 Phase C current
I
2
SIGNAL 0 Negative phase sequence current
V_A_AB SIGNAL 0 Phase to ground voltage A or phase to phase voltage AB
V_B_BC SIGNAL 0 Phase to ground voltage B or phase to phase voltage BC
V_C_CA SIGNAL 0 Phase to ground voltage C or phase to phase voltage CA
V
1
SIGNAL 0 Positive phase sequence voltage
V
2
SIGNAL 0 Negative phase sequence voltage
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
ENA_MULT BOOLEAN 0=False Enable signal for current multiplier