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

Function
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 fl icker (Vfl k)

3.2.4 Nominal Range of Use

Harmonics: THD (I) : 40%; THD (U) : 20%
Magnetic fi eld: < 40.0A/m (Earth's magnetic fi eld)
Electrical fi eld: < 3V/m

3.2.5 Power Supply

AC Power (internal power supply)
Operating Range: 230V
Max Power: 30VA
Battery Power Supply
Type: NiMH 3800 mAh
Output: 4-wire (2 for temperature probe)
Raged Voltage: 9.6V
Charge Time: 3 hrs 30 min approx
Battery Life: >6 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)
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
Range
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 th harmonic
1 to 99.99
0.00 to 9.99
± 20% and 110V
AC
(allows use in the event of a power interruption)
≤96 hrs with display off (recording mode)
Display
Resolution
0.1%
1°
0.1%
1°
0.1%
0.01
0.01
± 20%
AC
Accuracy
±1% ± 1ct
±2° ± 1ct
±1% + 5cts
±3°
±10°
±1% + 5cts
±5% ± 1ct
not specifi ed
15