ABB Relion 620 Series - Settings

6.5.6 Signals
Table 868: SEQSPVC 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 sequence
current
U_A_AB SIGNAL 0 Phase A voltage
U_B_BC SIGNAL 0 Phase B voltage
U_C_CA SIGNAL 0 Phase C voltage
U
2
SIGNAL 0 Negative phase se-
quence voltage
BLOCK BOOLEAN 0=False Block of function
CB_CLOSED BOOLEAN 0=False Active when circuit
breaker is closed
DISCON_OPEN BOOLEAN 0=False Active when line dis-
connector is open
MINCB_OPEN BOOLEAN 0=False Active when external
MCB opens protected
voltage circuit
Table 869: SEQSPVC Output signals
Name Type Description
FUSEF_3PH BOOLEAN Three-phase start of function
FUSEF_U BOOLEAN General start of function
6.5.7 Settings
Table 870: SEQSPVC Non group settings (Basic)
Parameter Values (Range) Unit Step Default Description
Operation
1=on
5=off
1=on Operation Off / On
Table 871: SEQSPVC Non group settings (Advanced)
Parameter Values (Range) Unit Step Default Description
Neg Seq current
Lev
0.03...0.20 xIn 0.01 0.03 Operate level of
neg seq undercur-
rent element
Neg Seq voltage
Lev
0.03...0.20 xUn 0.01 0.10 Operate level of
neg seq overvolt-
age element
Table continues on the next page
1MRS757644 H Supervision functions
620 series
Technical Manual
903