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Instruction manual
–
AQ G3x7 Generator protection IED
31 (211
)
Harmonic analysis of the phase currents
The inputs are the
“
sampled values
”
of the phase currents:
•
Currents of the network side
•
Currents of the neutral side
The outputs are the magnitude of the base harmonic Fourier components of these currents:
•
The base harmonic Fourier components of the network side
•
The base harmonic Fourier components of the neutral side
These values are processed by the software module evaluating the currents according to
the differential characteristics.