Monitored Data - ABB Relion 650 Series Technical Manual

1MRK 511 424-UEN B
10.9.6
10.9.7
Bay control REC650 2.2 IEC
Technical manual

Monitored data

Table 347: LMBRFLO Monitored data
Name Type
FLT_REL REAL
FLT_DIST REAL
FLT_X REAL
FLT_R REAL
FLT_LOOP INTEGER
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.
R +jX
1A 1A
DRPRDRE
LMBRFLO
IEC05000045 V2 EN-US
Figure 211: Simplified network configuration with network data, required for
settings of the fault location-measuring function
Values (Range) Unit
- -
- -
- Ohm
- Ohm
1=L1-N -
2=L2-N
3=L3-N
4=L1-L2
5=L2-L3
6=L3-L1
7=Others
R +jX
0L 0L
R +jX
1L 1L
Z =Z +jX
0m 0m 0m
R +jX
0L 0L
R +jX
1L 1L
Section 10
Monitoring
PID-3906-MONITOREDDATA v1
Description
Distance to fault, relative
Distance to fault in line
length unit
Reactive distance to
fault
Resistive distance to
fault
Fault loop
M14982-4 v7
R +jX
1B 1B
IEC05000045_2_en.vsd
443