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Logging Function P
Logging Values
Voltage L1 or A, L2 or B, L3 or C: phase-phase or phase-neutral:
• Voltage (mean, min, and max values)
• THDV (mean, and max values)
• Flicker Pst, Plt
• Voltage events (dips, swells, interruptions)
Current L1 or A, L2 or B, L3 or C, and N:
• Current (mean, max values), THDI
Power:
• Active power P (mean, min, and max values)
• Absolute values active power |P| (mean, min, and max values)
• Apparent power S (mean, min, and max values)
• Power Factor PF, tangent
• Energy per averaging interval
Total Power:
• Total power P, |P|, S
• 3-wattmeter and 2-wattmeter method (Aron circuitry)
Application
Power logging:
• Long-term analysis of active, reactive, apparent power
• Long-term analysis of power factor, symmetry
Disturbance analysis:
• Examination of voltage dips and swells, flicker measurement
Network optimization:
• Load measurements, acceptance of new loads
• Efficiency of compensation systems
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