ABB RELION 620 Series Technical Manual page 617

1MRS757644 F
4.4.2.6
4.4.2.7
Table 550: PDNSPTOC Group settings (Basic)
Parameter Values (Range)
Start value
Operate delay time
620 series
Technical Manual
IECA070698 V1 EN
Figure 314: Three-phase current quantities during the broken conductor fault in
phase A with the ratio of negative-sequence and positive-sequence
currents
Signals
Table 548: PDNSPTOC Input signals
Name
I
1
I
2
I_A
I_B
I_C
BLOCK
Table 549: PDNSPTOC Output signals
Name
OPERATE
START
Settings
Unit
10...100 %
100...30000 ms
Type Default Description
SIGNAL 0 Positive sequence current
SIGNAL 0 Negative sequence current
SIGNAL 0 Phase A current
SIGNAL 0 Phase B current
SIGNAL 0 Phase C current
BOOLEAN 0=False Block signal for activating the blocking mode
Type Description
BOOLEAN Operate
BOOLEAN Start
Step Default
1 10
1 100
Section 4
Protection functions
Description
Start value
Operate delay time
611