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18.3 Measurement Items and Calculations
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* The polarity sign for the active power P indicates the direction in which power
flows during consumption (P) and regeneration (-P).
The polarity sign for the reactive power Q is indicated by "+Q" for a lagging
power factor and by "-Q" for a leading power factor.
The polarity sign for the apparent power S is indicated by "+S" when power
consumption occurs, and by "-S" when power regeneration occurs.
* "h" indicates elapsed time.
*"Σ (+P)" etc., indicate the integrated power value from the start of integration
until the end of the elapsed period.
*"｜-S｜" and "｜-Q｜" indicate absolute values.
* The transformer capacity can be set as desired.
* Because integration by the reactive power meter method is performed for both
polarities (lag and lead), consumption/regeneration power flows that occur
during integration are integrated with the value that has the same respective
polarity.
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