Hioki Power HiTester 3193, Инструкция по эксплуатации

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4.7 Setting the Phase Polarity Discrimination Filter
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Phase polarity discrimination
filter operation
48-1.tif
48-2.tif
F1 F2
UNIT
phF
NOTE
4.7 Setting the Phase Polarity Discrimination Filter
For distorted waveforms such as inverter waveforms, the reactive power ( Q ),
power factor (
λ
), and phase angle (
φ
) phase angle polarity may not be
stable. In this case, by setting the phase polarity discrimination filter to
"ON" stable polarity measurements can be taken.
1. Press the STATUS key, then use the PAGE ( )
keys to display the "
UNIT
" page.
2. Using the CURSOR keys, move the cursor to the
channel to be changed of " phF " item.
3. Select
F1
(OFF)
or
F2
(
ON
).
4. Press the MEAS key to return to the measurement
screen.
･
This is valid when the calculation formula for reactive power ( Q ) and
apparent power ( S ) is set to " TYPE1 ." When the calculation formula is set to
" TYPE2 " or " TYPE3 " the ON/OFF setting of phF has no effect.
･
This has no effect on voltage ( U ), current ( I ), active power ( P ), or apparent
power ( S ).
･
For channel combinations of 1P3W and above, the channels are forced to the
same setting.
･
The filter cut-off frequency is 200 Hz, and therefore depending on the
frequency components of distorted waveforms, in some cases stabilization
may not be possible.
･
When the frequency of measurement waveform is 200 Hz or above, set to
OFF.
･ When using averaging function, the polarity is not displayed.
･ When the input signal level is 50% or less of the range, the polarity may not
be discriminated appropriately.