7-12
IM CW240E
NOTE
• If wiring is three-phase three-wire two-current, U3 and I2 are values obtained
by vector calculation.
• If wiring is three-phase three-wire three-current, U1, U2, and U3 are phase
voltages obtained from the virtual neutral-point.
• If wiring is three-phase four-wire or three-phase four-wire four-current, a volt-
age value becomes phase voltage.
• If the reactive power meter method is not used, reactive power, power factor,
and phase angle are calculated by multiplying the polarity of reactive power
obtained by the reactive power meter method.
• If wiring is three-phase three-wire two-current, or three-phase three-wire of a
Scott connection, P1, P3, Q1, Q3, S1, S3, PF1, PF3, PA1, and PA3 do not have
a physical meaning.
• If wiring is three-phase three-wire three-current, active power and reactive
power are results of calculations using phase voltage from the virtual neutral-
point.
7.2 Measure Screens
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