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8.2 Detailed Specifications of Measurement Parameters
147
8
[HARMONICS]
Measurement method
2048-point DFT
(frequency
is calculated as correct 5
0/60 Hz)
Harmonic analysis
window width
200 ms (10 cycles @50 Hz, 12 cycles @60 Hz)
Points per window
2048
Harmonic analysis
window
Rectangular
Harmonic analysis
orders
Up to 50
th
order
Measurement
Parameter
Harmonic voltage: rms voltage or percentage content of
each harmonic order (Fundamental = 100%)
Harmonic current: rms current of each harmonic order
Harmonic power: rms active power of each harmonic
order
Total voltage harmonic distortion : Voltage THD-F
Total current harmonic distortion : Current THD-F
Fundamental phase difference: phase difference rela-
tive to the fundamental voltage on channel 1
(LAG360°,LEAD180° display)
Measurement accuracy
Harmonic voltage and current
1
st
to 15
th
order ±0.5% rdg. ±0.2% f.s.
16
th
to 25
th
order ±1.0% rdg. ±0.3% f.s.
26
th
to 35
th
order ±2.0% rdg. ±0.3% f.s.
36
th
to 45
th
order ±3.0% rdg. ±0.3% f.s.
46
th
to 50
th
order ±4.0% rdg. ±0.3% f.s.
Accuracy is not specified for harmonic power
Guaranteed accuracy
range
Fundamental waveform voltage is specified for 50/60
Hz
Add clamp-on sensor accuracy to harmonic rms current
specifications
[K Factor]
KF
Measurement method
Calculated from rms harmonic waveform of the funda-
mental to 50
th
order (magnification ratio)
Display range
0.00 to 500.00
Measurement accuracy unspecified
[Voltage Unbal-
ance Factor]
Uunb
Measurement method
For three-phase 3 wire (3P3W3M) and three-phase 4-
wire, the value for each phase is calculated from the
fundamental waveform voltage (inter-line)
Display range
0.0 to 100.0
Measurement accuracy unspecified
Measurement Parameter
Содержание 3197
Страница 1: ...3197 POWER QUALITY ANALYZER May 2012 Revised edition 7 3197A981 07 12 05H Instruction Manual ...
Страница 2: ......
Страница 8: ...Contents vi ...
Страница 30: ...1 3 Measurement Flowchart 22 ...
Страница 44: ...2 5 Internal Operating Status and Memory Usage 36 ...
Страница 86: ...4 6 Initializing the Instrument System Reset 78 ...
Страница 117: ...6 3 Viewing Anomalous Phenomena EVENT screen 109 6 Viewing the INRUSH Screen DETAILS WAVEFORM INRUSH ...
Страница 134: ...6 4 Viewing Recorded Data REVIEW State 126 ...
Страница 139: ...7 2 Installing JRE 131 7 5 When the installation process has completed successfully click Finish Click ...
Страница 176: ...9 4 Disposing of the Instrument 168 ...
Страница 199: ......
Страница 200: ...3197 POWER QUALITY ANALYZER May 2012 Revised edition 7 3197A981 07 12 05H Instruction Manual ...