Monitored Data - ABB RELION 620 Series Technical Manual

Section 4
Protection functions
Parameter Values (Range)
Curve parameter E 0.0...1.0
IG/I0 signal Sel 1=Measured IG
2=Calculated I0
Pol signal Sel 1=Measured VG
2=Calculated V0
3=Neg. seq. volt.
1) The value of In is determined by the
Current (Io, CT)/Secondary current. If
Secondary current, since I0 is calculated by summing the phase currents.
4.1.5.12
230
Unit Step
I0 signal Sel setting. If I0 signal Sel = Measured IG, then In is the value set in Configuration/Analog inputs/
I0 signal Sel = Calculated I0, then In is the value set in Configuration/Analog inputs/Current (3I, CT)/

Monitored data

Table 171: 67/51N Monitored data
Name Type
FAULT_DIR Enum
PICKUP_DUR FLOAT32
DIRECTION Enum
ANGLE_RCA FLOAT32
ANGLE FLOAT32
I_OPER FLOAT32
67/51N Enum
Default Description
1.0 Parameter E for customer programmable
curve
2=Calculated I0
Selection for used Io signal
2=Calculated V0 Selection for used polarization signal
Values (Range) Unit
0=unknown
1=forward
2=backward
3=both
0.00...100.00 %
0=unknown
1=forward
2=backward
3=both
-180.00...180.00 deg
-180.00...180.00 deg
0.00...40.00
1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
1MAC504801-IB E
1)
Description
Detected fault direction
Ratio of pickup time / trip time
Direction information
Angle between polarizing and
operating quantity
Angle between operating
angle and characteristic angle
Calculated operating current
Status
620 series ANSI
Technical Manual