Product Features; Description - AEMC PowerPad 3945 User Manual

2.1 Description

The PowerPad™ Model 3945 is a three-phase power quality analyzer that is easy-to-
use, compact and shock-resistant. It is intended for technicians and engineers to mea-
sure and carry out diagnostic work on one, two or three phase low voltage networks.
Users are able to obtain instant waveforms of an electrical network's principal char-
acteristics, and also monitor their variation over a period of time. The multi-tasking
measurement system simultaneously handles all the measurement functions of the
various magnitudes, detection, continuous recordings and their display without any
constraints.
Features:
• Measurement of Vrms voltages up to 480V (phase-to-neutral) or 830V
(phase-to-phase) for two, three or four-wire systems.
• Measurement of Arms current up to 6500Arms.
• Frequency measurement of 50/60Hz (40Hz to 70Hz).
• Calculation of neutral current by vector summing of phase current for WYE
confi gurations.
• Calculation of Peak Factors for current and voltage.
• Calculation of the K Factor for transformers.
• Calculation of short-term fl icker for voltage.
• Calculation of the phase unbalance for voltage and current.
• Measurement of harmonic angles and rates (referenced to the fundamental
or RMS value) for voltage, current or power, up to 50
• Calculation of overall harmonic distortion factors.
• Monitoring of the average value of any parameter, calculated over a period
running from 5 sec to 2 hrs.
• Measurement of active, reactive and apparent power per phase and their
totals.
• Calculation of the power, phase shift and tangent factor.
• Total power from a point in time, chosen by the operator.
• Recording, time stamping and characterization of disturbance (swells, sags
and interruptions, exceedence of power and harmonic thresholds).
• Detection of transients and recording of associated waveforms.
Power Quality Analyzer Model 3945
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