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AEMC 3945 Power Pad 3-Phase Power Quality Analyzer

Description

The AEMC PowerPad Model 3945 power quality analyzer allows you to look inside your electrical system and see what is going on. Troubleshooting is so much easier because you can see the volts, amps and harmonic content in real-time and take pictures to document and analyze. The full color graphical display lets you see and analyze each signal clearly.

With a high speed sample rate, at 256 samples per cycle, the AEMC PowerPad Model 3945 power quality analyzer provides excellent fidelity in reproducing waveforms and capturing transients that happen as fast as 62.5 õs. The PowerPad's 4MB of memory is conveniently positioned to let you store four different types of data, synchronized or independent of each other. You can store up to 12 screen snapshots, up to 50 captured transients that contain four cycles for each active input and 4096 alarm events. You can also record trend data for days, weeks or even months.

Six direct access function buttons on the AEMC PowerPad Model 3945 power quality analyzer quickly let you see waveforms, harmonics, transients, alarm events, record and power & energy. Other functions and features of the PowerPad Model 3945 include current probes that auto configure the instrument's current channel for range and scale and an online help system that gives you clear information about the functions and buttons for each screen.

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 50th  order, including direction, in real time
  • Capture transients down to 1/256th 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 1st  to 50th
  • 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

AEMC 3945 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

Specifications

MODEL

3945

ELECTRICAL

 

Sampling Frequency

256 samples per cycle

Data Storage

4MB partitioned for waveforms, transients, alarms and trend recording

Voltage (TRMS)

Phase-to-Phase: 830V   Phase-to-Neutral: 480V

Current (TRMS)

MN Clamp: 0 to 6A/120A or 0 to 240A     SR Clamp: 0 to 1200A

MR Clamp: 0 to 1200AAC, 0 to 1400ADC AmpFlex™: 0 to 6500A1

MEASUREMENT

RANGE

RESOLUTION

ACCURACY

Single-Phase RMS Voltages

6 to 480V

0.1V

± 0.5% ± 2cts

Phase-to-Phase RMS Voltages

10 to 830V

0.1V

± 0.5% ± 2cts

Single-Phase Peak Voltages

6 to 680V

1V

± (1% + 5cts)

Phase-to-Phase Peak Voltages

10 to 1360V

1V

± (1% + 5cts)

Frequency (Hz)

40 to 69Hz

0.01Hz

± 0.01Hz

DC Voltage Component

6 to 650V

0.1V

± 1% ± 2cts

Current Probes (Arms) MN Clamp

SR Clamp

AmpFlex™ Probe

 

0 to 240A

0 to 1200A

10 to 6500A

 

0.1A

0.1A; 1A ≥ 1000A

0.1A; 1A ≥ 1000A

 

± (0.5% + 2cts)

± (0.5% + 2cts)

± (0.5% + 1A)

Active (Real) Power (kW)

0 to 9999kW

4 digits (10,000ct)

± 1% ± 1ct @ PF ≥0.8

Reactive Power (kVAR)

0 to 9999kVAR

4 digits (10,000ct)

± 1% ± 1ct @ PF ≤0.8

Apparent Power (kVA)

0 to 9999kVA

4 digits (10,000ct)

± 1% ± 1ct

Power Factor (PF & DPF)

-1.000 to 1.000

0.001

±(1.5% + 0.01)

Active Energy (kWh)

0 to 9999MWh

4 digits (10,000ct)

± 1% ± 1ct @ PF ≥0.8

Reactive Energy (kVARh)

0 to 9999MVARh

4 digits (10,000ct)

± 1% ± 1ct @ PF ≤0.8

Apparent Energy (kVAh)

0 to 9999MVAh

4 digits (10,000ct)

± 1% ± 1ct

Unbalance (V & A)

0 to 100%

0.1%

± 1% ± 1ct

Phase Angle (V–A, A–A, V–V))

-179° to +180°

± 2° ± 1ct

Harmonics (1st  to 50th)

F = 40 to 69Hz

(V ≥ 50V, A > Inom/100)

 

0 to 999%

 

0.1%

 

±1% + 5cts

Total Harmonic Distortion (V & A)

0 to 999%

0.1%

±1% + 5cts

K-factor (Akf)

1 to 99.99

0.01

±5% ± 1ct

Flicker (PST)

0.00 to 9.99

0.01

Power Source

9.6V NiMH rechargeable battery pack AC supply: 110/230VAC  ±20% (50/60Hz)

Battery Life

6 hrs with display on; ≤96 hrs with display off (record mode)

ENVIRONMENTAL

 

Operating Temperature

32° to 122°F (0° to 50°C)

Storage Temperature

-4° to +122°F (-20° to +50°C)

MECHANICAL

 

Display

1/4 VGA (320 x 240) color LCD

Dimensions

9.5 x 7 x 2" (240 x 180 x 55mm)

Weight

4.6 lbs (2.1kg)

SAFETY

 

Safety Rating

EN 61010-1, 600V Cat. III, Pollution Degree 2

Double Insulation

Yes

CE Mark

Yes

Standards

CISPR
CISPR 11
CISPR 14 - 1
CISPR 14 - 2
CISPR 14 - 2
CISPR 16 - 1
CISPR 16 - 2
CISPR 16 - 3
CISPR 16 - 4
CISPR 22
CISPR 24
IEC
IEC/TR EN 61000 - 1 - 1
IEC/TR EN 61000 - 2 - 1
IEC/TR EN 61000 - 2 - 3
IEC EN 61000 - 3 - 2
IEC EN 61000 - 3 - 4
IEC/TC EN 61000 - 3 - 5
IEC EN 61000 - 4 - 2
IEC EN 61000 - 4 - 3
IEC EN 61000 - 4 - 4
IEC EN 61000 - 4 - 5
IEC EN 61000 - 4 - 6
IEC EN 61000 - 4 - 7
IEC EN 61000 - 4 - 8
IEC EN 61000 - 4 - 9
IEC EN 61000 - 4 - 11
European
EN 50 081 part 1
EN 50 081 part 2
EN 55 011
EN 55 013
EN 55 014
EN 55 015
EN 55 020
EN 55 022
EN 55 024
EN 50 082 part 1
EN 50 082 part 2
EN 50 093
American
FCC Part 15
MIL-STD - 461E