ABB RELION 620 Series Technical Manual page 864

Section 5
Protection related functions
5.7.6
5.7.7
Table 819: SCEFRFLO Group settings (Basic)
Parameter
Z Max phase load
Ph leakage Ris
Ph capacitive React
R1 line section A
X1 line section A
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858
Signals
Table 817: SCEFRFLO Input signals
Name
I_A
I_B
I_C
Io
I
1
I
2
U_A_AB
U_B_BC
U_C_CA
Uo
U
1
U
2
BLOCK
TRIGG
TRIGG_XC0F
Table 818: SCEFRFLO Output signals
Name
ALARM
Settings
Values (Range) Unit
1.0...10000.0 ohm
20...1000000 ohm
10...1000000 ohm
0.000...1000.000 ohm / pu
0.000...1000.000 ohm / pu
Type Default Description
SIGNAL 0 Phase A current
SIGNAL 0 Phase B current
SIGNAL 0 Phase C current
SIGNAL 0 Residual current
SIGNAL 0 Positive sequence current
SIGNAL 0 Negative sequence current
SIGNAL 0 Phase to earth voltage A or phase to phase voltage
AB
SIGNAL 0 Phase to earth voltage B or phase to phase voltage
BC
SIGNAL 0 Phase to earth voltage C or phase to phase voltage
CA
SIGNAL 0 Residual voltage
SIGNAL 0 Positive phase sequence voltage
SIGNAL 0 Negative phase sequence voltage
BOOLEAN 0=False Signal for blocking the triggering
BOOLEAN 0=False Distance calculation triggering signal
BOOLEAN 0=False XC0F calculation triggering signal
Type Description
BOOLEAN Fault location alarm signal
Step Default
0.1 80.0
1 210000
1 7000
0.001 1.000
0.001 1.000
1MRS757644 F
Description
Impedance per phase of max. load,
overcurr./under-imp., PSL
Line PhE leakage resistance in primary
ohms
Line PhE capacitive reactance in primary
ohms
Positive sequence line resistance, line
section A
Positive sequence line reactance, line
section A
Technical Manual
620 series