92
Power Quality Analyzer PowerPad
®
IV Model 8345
17.2 ELECTRICAL SPECIFICATIONS
17.2.1 Input Voltage Specifications
Range of Use
0 V
RMS
to 1000 V
RMS
phase-neutral and neutral-earth
0 V
RMS
to 1700 V
RMS
phase-phase
without exceeding 1000 V
RMS
with respect to earth
Input Impedance
2 MΩ between phase and neutral
2 MΩ between neutral and earth
Permanent Overload
1200 V
RMS
phase-neutral and neutral-earth
Temporary Overload
12,000 V
RMS
phase-neutral and neutral-earth
278 pulses per second maximum
17.2.2 Current Input Specifications
Range of Use
0 V
RMS
to 1 V
RMS
with CF = √2
(except AmpFlex
®
and MiniFlex
®
)
0 V
RMS
to (0.391 x f
nom
/ 50) V
RMS
with CF = √2
for AmpFlex
®
and MiniFlex
®
Input Impedance
1 MΩ (except AmpFlex
®
and MiniFlex
®
)
12.5 kΩ for AmpFlex
®
and MiniFlex
®
Max Input Voltage
1.2 V
RMS
with CF = √2
Permanent Overload
1.7 V
RMS
with CF = √2
17.2.3 Bandwidth and Sampling
The instrument utilizes anti-aliasing filters, as required by IEC 61000-4-7 Ed. 2.
S/s: sample per second
spc: sample per cycle
The bandwidth and the sampling frequency (S = sample) are:
Channel Type
Bandwidth
Sampling Frequency
Voltage
88 kHz
400 kS/s
Current
20 kHz
200 kS/s
Shock Waves
200 kHz
2 MS/s
There are two streams of data used for metrology: 40 kS/s and 512 spc
(samples per cycle)
Waveform - RMS:
■
3U, 4V, 4A filters: 512 spc stream
■
L1, L2, L3, N filters: 512 spc stream
■
Min and Max curves: 400 kS/s for V and U, 200 kS/s for I
