Monitored Data - ABB REC650 Technical Manual

Section 12
Monitoring
Name
DrepChNoIP
DrepChNoUL1
DrepChNoUL2
DrepChNoUL3
12.14.6
12.14.7
474
Values (Range) Unit
0 - 30 Ch
1 - 30 Ch
1 - 30 Ch
1 - 30 Ch

Monitored data

Table 410: LMBRFLO Monitored data
Name
FLT_REL
FLT_DIST
FLT_X
FLT_R
FLT_LOOP
Operation principle
The Fault locator (LMBRFLO) in the IED is an essential complement to other
monitoring functions, since it measures and indicates the distance to the fault with
high accuracy.
When calculating distance to fault, pre-fault and fault phasors of currents and voltages
are selected from the Trip value recorder data, thus the analog signals used by the fault
locator must be among those connected to the disturbance report function. The analog
configuration (channel selection) is performed using the parameter setting tool within
PCM600.
The calculation algorithm considers the effect of load currents, double-end infeed and
additional fault resistance.
Step Default
1 0
1 5
1 6
1 7
Type Values (Range)
REAL -
REAL -
REAL -
REAL -
INTEGER 0=---
1=L1-N
2=L2-N
3=L3-N
4=L1-L2
5=L2-L3
6=L3-L1
7=L1-L2-L3
1MRK 511 287-UEN A
Description
Recorder input number recording 3I0 on
parallel line
Recorder input number recording phase
voltage, UL1
Recorder input number recording phase
voltage, UL2
Recorder input number recording phase
voltage, UL3
Unit Description
- Distance to fault, relative
- Distance to fault in line
length unit
Ohm Reactive distance to fault
Ohm Resistive distance to fault
- Fault loop
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