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V: 1.10 Revised: January 2020
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Chapter 10: Web Interface Readings and Parameter Settings
VAR Calculation Method:
Can be selected as either True or Generalized
• True Method - Uses the Budeanu Concept to calculate the ‘True’ reactive power. This
method generally takes the harmonic components to do the calculation instead of using
the power vector triangle method. This method can be defined by the following by the fol
-
lowing expression for single phase circuit:
• Generalized Method - UsesFryze's concept to calculate the 'Generalized' reactive power.
This method separates instantaneous current into two components, active and reactive
currents.
Active current is calculated as:
and reactive current as: