67
Measurement Settings
1
Enables you to select whether to display the RMS voltage of TREND screen in the form of line
voltage or in phase voltage.
Phase voltage (Line-N), Line voltage (Line-Line)
For 1P2W, 1P3W Phase voltage
For 3P3W2M Line voltage
For 3P3W3M, 3P4W,
3P4W2.5E
Can be switched between phase voltage and line voltage
Both the phase voltage and line voltage are stored as a output data.
(3P4W2.5E will be available after the rmware update)
2
Enables you to select the method for calculating power factor (PF/DPF), reactive power (Q), and
apparent power (S) on the display screen.
Both the RMS calculation and fundamental calculation values are stored as a output data.
See “14.7 Calculation Formula” (p. 175).
RMS value Uses RMS voltage and RMS current to calculate.
Fundamental
Uses voltage and current fundamentals to calculate.
This is the same measurement method used for measuring reactive energy
established at commercial-scale utility customers’ facilities.
RMS calculation is generally used in applications such as checking transformer capacity.
Fundamental calculation is used when measuring power factor and reactive power, which are related
to the energy cost.
3
Enables you to select the calculation method for calculating the total harmonic distortion (THD) on
the display screen and event settings.
Both the THD-F calculation value and THD-R calculation value are taken as output data.
THD-F
Calculates by dividing harmonic components (total of 2nd to 50th orders)
with fundamental wave.
THD-R
Calculates by dividing harmonic components (total of 2nd to 50th orders)
with RMS value (1st to 50th order).
4
When the unit cost (/kWh) is set, the energy cost is displayed by multiplying the active energy
(consumed) WP+ with the energy cost per unit.
See “Unit cost input method” (p. 68).
0.00000 /kWh to 99999.9 /kWh
5
Enables you to set the currency.
Set to any 3 alphanumeric characters (example: set USD for
the US dollar
)
5
Setting Change (SET UP Screen)
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