Manual

Three-Phase Power Quality Analyzer PowerPad
™
Model 3945 (pdf) Rev. 04 05/05
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Features
• True RMS single-, two- and three-phase
measurements at 256 samples/cycle, plus DC
• Real-time color waveforms
• Easy-to-use on-screen setup
• Automatic current probe recognition and scaling
• True RMS voltage and current measurement
• Measures DC volts, amps and power
• Display and capture voltage, current and power
harmonics to 50
th
order, including direction, in real time
• Capture transients down to 1/256
th
of a cycle
• Phasor diagram display
• Peak voltage and current
• Nominal frequency from 40 to 70Hz
• VA, VAR and W per phase and total
• kVAh, VARh and kWh per phase and total
• Neutral current display for three-phase
• Crest factors for current and voltage
• Transformer K-factor display
• Power Factor, displacement PF display
• Captures up to 50 transients
• Short-term flicker display
• Phase unbalance (current and voltage)
• Harmonic Distortion (total and individual) from 1
st
to 50
th
• Alarms, surges and sags
• Records date and characteristics of disturbances
• Immediate printout directly to a printer
• Screen snapshot function captures waveforms or other
information on the display
• Optically isolated RS-23 communication port
• Includes DataView
®
Professional software for data
storage, analysis and report generation
• EN 61010, 600V Cat. III
Applications
• Verification of power distribution circuits
• Measurement and recording of power system quality
(kW, VA, VAR)
• Energy metering (kVAh, VARh, kWh)
• In plant troubleshooting of power distribution panels and
individual machinery
• Monitor pad mount transformers
• Determine harmonic problems originating from source or
load
• Monitor phase unbalances
• Determine transformer K-factor
• And much, much more
Power quality analysis on a three-phase panel using the AmpFlex
™
flexible current probes.
Measure all three phases of voltage and current
simultaneously.