CMC 356 Reference Manual
84
Note
:
• For very small phase shifts (< 0,3 °) and small excitation (< 10 %), too
small integration time (< 1 s) or sampling rate 3.16 kHz, the sign of the
reactive power cannot definitely be determined.
• The accuracy of the power measurement depends primarily on the
accuracy of the current clamp (refer to section 9.5, "Current Clamp C-
PROBE1" on page 112).
6.10.7 Harmonic
Analysis
This operating mode is designed for measuring stationary signals (e.g., not
sinusoid shaped). The input signal is separated into fundamental and
harmonic waves (Fourier Analysis).
The following items are measured:
• frequency of the fundamental wave
• amplitude of the fundamental and harmonic waves
• phase shifts between the fundamental and harmonic waves (also from
the different channels)
The input signals are captured. Finally, the calculation of the measurement
items is carried out. During this time, the input signal is not taken into
consideration.
Summary of Contents for CMC 356
Page 1: ...CMC 356 User Manual...
Page 38: ...CMC 356 Reference Manual 38...
Page 100: ...CMC 356 Reference Manual 100...
Page 104: ...CMC 356 Reference Manual 104...
Page 132: ...CMC 356 Reference Manual 132...
Page 136: ...The OMICRON Bootloader Software Copyright Notices 136...