Hitachi Relion 670 Series Applications Manual page 358

Section 15
Monitoring
connected to SMPPTRC and trip from SMPPTRC function is connected to FLTMMXU function for the
monitoring of fault data. As the TRIGFLTUI input becomes active at 4.434 s, the maximum peak
current of individual phases and maximum RMS current of individual phases will be evaluated during
the fault duration from 4.134 s to 4.734 s.
The snapshot of each phase current DFT magnitude and angle values (FLTILxMAG/FLTILxANG) and
each phase voltage DFT magnitude and angle values (FLTULxMAG/FLTULxANG) are stored at the
positive edge of the binary input TRIGFLTUI.
The FLTMMXU function monitors and reports the following data at the output considering the default
setting parameters mentioned in
IEC210000248 V2 EN-US
Figure 174:
352
Figure
Reported fault data on occurrence of trip event from PHPIOC function
The reference for the angle outputs can be set by DFTReference setting parameter in
SMAI function. In this example, the fundamental DFT angle of phase L1 voltage is
considered as the reference for the angle outputs.
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174.
1MRK506375-UEN Rev. N
Railway application RER670
Application manual