5.4.6 Signals
Table 520: SCEFRFLO 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
Io SIGNAL 0 Residual current
I
1
SIGNAL 0 Positive sequence current
I
2
SIGNAL 0 Negative sequence current
U_A_AB SIGNAL 0 Phase to earth voltage A or phase to phase voltage
AB
U_B_BC SIGNAL 0 Phase to earth voltage B or phase to phase voltage
BC
U_C_CA SIGNAL 0 Phase to earth voltage C or phase to phase voltage
CA
Uo SIGNAL 0 Residual voltage
U
1
SIGNAL 0 Positive phase sequence voltage
U
2
SIGNAL 0 Negative phase sequence voltage
BLOCK BOOLEAN 0=False Signal for blocking the triggering
TRIGG BOOLEAN 0=False Distance calculation triggering signal
TRIGG_XC0F BOOLEAN 0=False XC0F calculation triggering signal
Table 521: SCEFRFLO Output signals
Name
Type Description
ALARM BOOLEAN Fault location alarm signal
5.4.7 Settings
Table 522: SCEFRFLO Group settings (Basic)
Parameter
Values (Range) Unit Step Default Description
Z Max phase load 1.0...10000.0 ohm 0.1 80.0 Impedance per phase of max. load,
overcurr./under-imp., PSL
Ph leakage Ris 20...1000000 ohm 1 210000 Line PhE leakage resistance in primary
ohms
Ph capacitive React 10...1000000 ohm 1 7000 Line PhE capacitive reactance in primary
ohms
R1 line section A 0.000...1000.000 ohm / pu 0.001 1.000 Positive sequence line resistance, line
section A
X1 line section A 0.000...1000.000 ohm / pu 0.001 1.000 Positive sequence line reactance, line
section A
Table continues on next page
1MRS758755 A Section 5
Protection related functions
REC615 and RER615 503
Technical Manual
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