Name Type Default Description
U_B_BC SIGNAL 0 Phase to earth volt-
age B or phase to
phase voltage BC
U_C_CA SIGNAL 0 Phase to earth volt-
age C or phase to
phase voltage CA
Uo SIGNAL 0 Residual voltage
U
1
SIGNAL 0 Positive phase se-
quence voltage
U
2
SIGNAL 0 Negative phase se-
quence 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 trig-
gering signal
5.4.6.2 SCEFRFLO Output signals
Table 540: SCEFRFLO Output signals
Name Type Description
ALARM BOOLEAN Fault location alarm signal
5.4.7 Settings
5.4.7.1 SCEFRFLO Group settings
Table 541: 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./un-
der-imp., PSL
Ph leakage Ris 20...1000000 ohm 1 210000 Line PhE leakage
resistance in pri-
mary ohms
Ph capacitive React 10...1000000 ohm 1 7000 Line PhE capaci-
tive 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 the next page
1MRS758755 C Protection related functions
REC615 & RER615
Technical Manual
517
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