Nominal Range Of Use; Power Supply - AEMC PowerPad 3945-B User Manual

Function
Apparent Energy (Vah)
Unbalance (Vunb, Aunb)
three phase supply
Phase angle (V/I; I/I; V/V)
Harmonics ratios
F = 40 to 69Hz
(Vrms > 50V)
(rms > Inom/100)
Harmonics angles
F = 40 to 69Hz
(Vrms > 50V)
(rms > Imax/100)
Total harmonics distortion
(Vthd, Athd, Uthd)
Current K factor (Akf)
Voltage flicker (Vflk)
*Note: MiniFlex specified up to 1000A only
®
Vdem, Adem and Udem = Values measured on half cycle (allow to get a measurement with positive and
negative values)
Vpm, Upm and Apm = Peak values min.
3.2.4

Nominal Range of Use

Frequency: 40 to 69Hz
Harmonics: THD (I) : 0 to 40%; THD (U) : 0 to 20%
Magnetic field: <40.0A/m (Earth's magnetic field)
Electrical field: <3V/m
Relative Humidity: 10 to 90% without condensation
3.2.5

Power Supply

AC Power (internal power supply)
Operating Range: 230V
Max Power: 30VA
Battery Power
(allows use in the event of an interruption)
Type: NiMH 3800 mAh
Output: 4-wire (2 for temperature probe)
Rated Voltage: 9.6V
Charge Time: 6 hrs approx.
Battery Life: >8 hrs with display on
Operating Temperature: 32° to 122°F (0° to 50°C)
Recharging Temperature: 50° to 104°F (10° to 40°C)
Storage Temperature: -4 to +122°F (-20 to +50°C) for ≤ 30 days
NOTE: The battery starts to charge when the power cord is connected. When
the battery is charged, the instrument uses the current supplied by the power
supply, without drawing from the battery.
Power Quality Analyzer Model 3945-B
Range
0VAh to 9999MVAh
0% to 100%
-179° to +180°
0% to 999%
1 to 50th harmonic
-179° to +180°
1 to 25
26 to 50
0% to 999%
50 harmonic
th
1 to 99.99
0.00 to 9.99
± 20% and 110V
AC
≥35 hrs with display off (recording mode)
Display Resolution
4 digits
0.1%
1°
0.1%
1°
0.1%
0.01
0.01
± 20% (88 to 276V
AC
Accuracy
±1% ± 1ct
±1% ± 1ct
±2°
±1% + 5cts
±3°
±10°
±1% + 5cts
±5% ± 1ct
not specified
)
AC
19