Signals - ABB RELION REX640 Technical Manual

Section 6
Supervision functions
6.5.7
6.5.8
Table 1161: SEQSPVC Non group settings (Basic)
Parameter
Operation
Table 1162: SEQSPVC Non group settings (Advanced)
Parameter
Neg Seq current Lev
Neg Seq voltage Lev
Current change rate
Voltage change rate
Change rate enable
Min Op voltage delta
Table continues on next page
1232
calculated from the measured current and voltage data for all three phases. The
purpose of this function is to block voltage-dependent functions when a fuse failure is
detected. Since the voltage dependence differs between these functions, SEQSPVC
has two outputs for this purpose.

Signals

Table 1159: SEQSPVC Input signals
Name
I3P
U3P
BLOCK
CB_CLOSED
DISCON_OPEN
MINCB_OPEN
Table 1160: SEQSPVC Output signals
Name
FUSEF_3PH
FUSEF_U
Settings
Values (Range) Unit
1=on
5=off
Values (Range) Unit
0.03...0.20 xIn
0.03...0.20 xUn
0.01...0.50 xIn
0.25...0.90 xUn
0=False
1=True
0.01...1.00 xUn
Type Default Description
SIGNAL - Three-phase currents
SIGNAL - Three-phase voltages
BOOLEAN 0=False Block of function
BOOLEAN 0=False Active when circuit breaker is closed
BOOLEAN 0=False Active when line disconnector is open
BOOLEAN 0=False Active when external MCB opens protected voltage
circuit
Type Description
BOOLEAN Three-phase start of function
BOOLEAN General start of function
Step Default
1=on
Step Default
0.01 0.03
0.01 0.10
0.01 0.15
0.01 0.40
0=False
0.01 0.50
1MRS759142 C
Description
Operation Off / On
Description
Operate level of neg seq undercurrent
element
Operate level of neg seq overvoltage
element
Operate level of change in phase current
Operate level of change in phase voltage
Enabling operation of change based
function
Minimum operate level of phase voltage
for delta calculation
Technical Manual
REX640