Hioki 3196 - Page 197

12.2 Measurement Specifications
191
Measurement accuracy
At 50/60 Hz:
Harmonic voltage and harmonic current:
1st to 20th orders: ±0.5% rdg. ±0.2% f.s.
21st to 50th orders: ±1.0% rdg. ±0.3% f.s.
Harmonic power:
1st to 20th orders: ±0.5% rdg. ±0.2% f.s.
21st to 30th orders: ±1.0% rdg. ±0.3% f.s.
31st to 40th orders:±2.0% rdg. ±0.3% f.s.
41st to 50th orders:±3.0% rdg. ±0.3% f.s.
At 400 Hz:
Harmonic voltage and harmonic current:
1st to 2nd orders: ±0.5% rdg. ±0.2% f.s.
3rd to 6th orders: ±1.0% rdg. ±0.3% f.s.
7th to 10th orders: ±1.0% rdg. ±0.3% f.s.±0.5
× (k-6)%rdg.
(k: harmonic orders)
Harmonic power:
1st to 2nd orders: ±0.5% rdg. ±0.2% f.s.
3rd to 4th orders: ±1.0% rdg. ±0.3% f.s.
5th to 10th orders:±1.0% rdg. ±0.3% f.s. ±1.0
× (k-4)%rdg.
(k: harmonic orders)
However, the clamp sensor’s accuracy is added when calculating harmonic
current and harmonic power.
Harmonic Voltage, Current and Power (including fundamental waveform content)
Inter-Harmonic Voltage and Current
Measurement method
Per IEC61000-4-7:2002
After harmonic analysis, harmonic voltage and current are summed and dis-
played as inter-harmonic contents with the harmonic contents according to
harmonic order
Harmonic analysis window
width
10 or 12 cycles for 50 or 60 Hz, respectively
Number of points in 1 win-
dow
2048 points
Harmonic analysis window
Rectangular
Harmonic analysis frequen-
cies
0.5 to 49.5 orders (of 42.5- to 69-Hz fundamental waveform)
Measurement accuracy
Unspecified
Harmonic Voltage/Current Phase Angle (including fundamental wave components)
Measurement method
After harmonic analysis, the harmonic phase angle components for whole
orders are displayed.
(Set the phase angle for the PLL source of the fundamental wave to 0°.)
Measurement accuracy
Not defined