Recorded Data - ABB RELION Series Technical Manual

1MRS758755 A
5.4.4.5
5.4.4.6
REC615 and RER615
Technical Manual
GUID-59F4E262-44C8-4EF3-A352-E6358C84C791 V2 EN
Figure 261: An example of the ALARM output use

Recorded data

All the information required for a later fault analysis is recorded to SCEFRFLO
recorded data. In the protection relay, recorded data is found in Monitoring/
Recorded data/Other protection/SCEFRFLO.
The function has also monitored data values which are used for the read-out of
continuous calculation values. The cross reference table shows which of the recorded
data values are available as continuous monitoring values during a fault.
Table 519: Cross reference table for recorded and monitored data values
Recorded data
Flt loop
Flt distance
Flt Dist quality
Flt loop resistance
Flt loop reactance
Flt phase reactance
Flt point resistance
Flt to Lod Cur ratio
Equivalent load Dis
XC0F Calc
Measurement modes
The full operation of SCEFRFLO requires that all three phase-to-earth voltages are
measured. The voltages can be measured with conventional voltage transformers or
voltage dividers connected between the phase and earth (VT connection is set to
"Wye"). Another alternative is to measure phase-to-phase voltages (VT connection is
Protection related functions
Monitored data
FAULT_LOOP
FLT_DISTANCE
FLT_DIST_Q
RFLOOP
XFLOOP
XFPHASE
RF
IFLT_PER_ILD
S_CALC
XC0F_CALC
Section 5
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