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Power Calculation Method
5.6 Power Calculation Method
This function enables you to select equations of reactive power, power factors, and power phase
angles to follow those of legacy Hioki instruments.
Since no standardized equations for apparent power and reactive power have been dened for
distorted three-phase AC signals, dierent instruments use dierent equations. To improve its
compatibility with previous models, the instrument allows you to choose from among three equation
settings.
See “10.5 Specications of Equations” (p. 212).
Display screen [INPUT] > [COMMON]
11
1
Tap the [Power calculation method]
box, then select the calculation type
from the list.
IMPORTANT
Type 1, Type 2, and Type 3 are
compatible with each equation types
used in Hioki PW6001 Power Analyzer.
Equation types
TYPE1
When any mode
other than 3V3A is
selected
Provides compatibility with the Type 1 setting used by Hioki PW3390,
3390, and 3193.
When 3V3A is
selected
Provides compatibility with the Type 2 setting used by Hioki 3192 and
3193.
TYPE2 Provides compatibility with the Type 2 setting used by Hioki 3192 and 3193.
TYPE3 Uses signs of active power as those of power factors.
If you do not use any model listed above or cannot decide a type to be used, select [TYPE1].
The dierent formulas do not yield dierent results for active power (even when waveforms are
distorted) since active power is calculated directly from values sampled from voltage and current
waveforms.
Various Functions
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