Power Quality Logger
Introduction
Logging function parameters:
RMS Voltage of each phase (average, min, max)
RMS Current of each phase and neutral (average, min, max)
Voltage events (dips, swells, interruptions)
Power (kW, kVA, kVAR, Power PF, Power tangent)
Energy, total energy
Flicker (Pst, Plt)
Voltage THD
Current THD
Current CF
th
Voltage harmonics to the 50
(not in P function)
Voltage interharmonics (not in P function)
Mains signalling voltage
Unbalance
Frequency
egc001.eps
Figure 1. 1745 Power Quality Logger
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