ABB RER620

Section 4 1MAC309294-MB F
Protection functions
100 RER620
Technical Manual
4.1.1.12 Technical revision history
Table 122: 50P–3 Technical revision history
Table 123: 50P–2 Technical revision history
Table 124: 51P & 50P-1 Technical revision history
4.1.2 Single-phase directional overcurrent protection 67/51P-1 and
67/51P-2
4.1.2.1 Identification
4.1.2.2 Function block
Figure 40: Function block
4.1.2.3 Functionality
The three-phase overcurrent protection 67/51P and 67/50P is used as one-phase,
two-phase or three-phase directional overcurrent and short-circuit protection for feeders.
67/51P and 67/50P picks up when the value of the current exceeds the set limit and
directional criterion is fulfilled. The trip time characteristics for low stage 67/51P and
Technical revision Change
C Minimum and default values changed to 20 ms for
the
Trip delay time setting.
Minimum value changed to 1.00 x I
n
for the Pickup
value
setting.
Technical revision Change
C
Measurement mode “ P-to-P + backup ” replaced with
“Peak-to-Peak”
Technical revision Change
B Minimum and default values changed to 40 ms for
the
Trip delay time setting
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Single-phase directional overcurrent
protection - Low stage 1
SDPHLPDOC1 3I> ->(1) 67/51P-1
Single-phase directional overcurrent
protection - Low stage 2
SDPHLPDOC2 3I> ->(2) 67/51P-2
I_A
I_B
I_C
BLOCK
ENA_MULT
67/51P-1
TRIP
TRIP_A
TRIP_B
TRIP_C
PICKUP
PICKUP_A
PICKUP_B
PICKUP_C
I2
V_A_AB
V_B_BC
V_C_CA
V1
V2
I_A
I_B
I_C
BLOCK
ENA_MULT
67/51P-2
TRIP
TRIP_A
TRIP_B
TRIP_C
PICKUP
PICKUP_A
PICKUP_B
PICKUP_C
I2
V_A_AB
V_B_BC
V_C_CA
V1
V2