ABB Relion 670 Series Technical Reference Manual page 952

Line differential protection ansi
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Section 15
Monitoring
15.5.4
15.5.5
Table 582:
LMBRFLO Group settings (basic)
Name
Values (Range)
R1A
0.001 - 1500.000
X1A
0.001 - 1500.000
R1B
0.001 - 1500.000
X1B
0.001 - 1500.000
R1L
0.001 - 1500.000
X1L
0.001 - 1500.000
R0L
0.001 - 1500.000
X0L
0.001 - 1500.000
R0M
0.000 - 1500.000
X0M
0.000 - 1500.000
LineLength
0.0 - 10000.0
946
Input and output signals
Table 580:
LMBRFLO Input signals
Name
Type
PHSEL_A
BOOLEAN
PHSEL_B
BOOLEAN
PHSEL_C
BOOLEAN
CALCDIST
BOOLEAN
Table 581:
LMBRFLO Output signals
Name
Type
FLTDISTX
REAL
CALCMADE
BOOLEAN
BCD_80
BOOLEAN
BCD_40
BOOLEAN
BCD_20
BOOLEAN
BCD_10
BOOLEAN
BCD_8
BOOLEAN
BCD_4
BOOLEAN
BCD_2
BOOLEAN
BCD_1
BOOLEAN
Setting parameters
Unit
Step
ohm/p
0.001
ohm/p
0.001
ohm/p
0.001
ohm/p
0.001
ohm/p
0.001
ohm/p
0.001
ohm/p
0.001
ohm/p
0.001
ohm/p
0.001
ohm/p
0.001
-
0.1
Default
Description
0
Phase selection phase A
0
Phase selection phase B
0
Phase selection phase C
0
Input signal to initiate fault distance calculation
Description
Reactive distance to fault
Fault calculation made
Distance in binary coded data, bit represents 80%
Distance in binary coded data, bit represents 40%
Distance in binary coded data, bit represents 20%
Distance in binary coded data, bit represents 10%
Distance in binary coded data, bit represents 8%
Distance in binary coded data, bit represents 4%
Distance in binary coded data, bit represents 2%
Distance in binary coded data, bit represents 1%
Default
Description
2.000
Source resistance A (near end)
12.000
Source reactance A (near end)
2.000
Source resistance B (far end)
12.000
Source reactance B (far end)
2.000
Positive sequence line resistance
12.500
Positive sequence line reactance
8.750
Zero sequence line resistance
50.000
Zero sequence line reactance
0.000
Zero sequence mutual resistance
0.000
Zero sequence mutual reactance
40.0
Length of line
1MRK505222-UUS C
Technical reference manual

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