GUID-59F4E262-44C8-4EF3-A352-E6358C84C791 V2 EN
Figure 261: An example of the ALARM output use
5.4.4.5 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
Monitored data
Flt loop FAULT_LOOP
Flt distance FLT_DISTANCE
Flt Dist quality FLT_DIST_Q
Flt loop resistance RFLOOP
Flt loop reactance XFLOOP
Flt phase reactance XFPHASE
Flt point resistance RF
Flt to Lod Cur ratio IFLT_PER_ILD
Equivalent load Dis S_CALC
XC0F Calc XC0F_CALC
5.4.4.6 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
1MRS758755 A Section 5
Protection related functions
REC615 and RER615 501
Technical Manual
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