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5.Operation
5.1 Basic Operation
Active Energy / Reactive Energy Display
Display format
■
The following table shows the display format of active energy / reactive energy based on the total load.
Total load power[kW] =
※ 1.
For the direct voltage setting, the direct voltage is used for calculation instead of
the VT primary voltage.
※ 2. For 3-phase 4-wire or 1-phase 3-wire, the VT primary voltage and direct voltage
are calculated using the line to phase voltage.
Total load
Less than 10
10 or higher and less than 100
100 or higher and less than 1000
1000 or higher and less than 10000
10000 or higher and less than 100000
100000 or higher
* For reactive energy, read Wh as varh.
■
Example Display
Active energy
(Imported)
Reactive energy
(Imported lag)
How to change the unit of Wh and varh
When
and
are pressed simultaneously for 2 seconds, the unit of Wh, varh and VAh will be changed. This will
＋
－
enable to check the upper digits or lower digits of counts.
Example of change: Case of active energy (imported) = 012,345,678,901,234.567Wh
Press
and
＋
Unit：Mega
Note1: All of Wh and varh change to same unit even if these are not shown on the screen.
Note2: When the setting value of the VT primary voltage and the CT primary current are large, the lower digits less than a measurement
range display "0".
Wh and varh zero reset
When
,
,and
SET
RESET
be reset.
When the password protection setting is
Also, you can clear all Wh and varh values by communication function. (In this case, the password is not necessary.)
Note 1: This is effective only in the instantaneous value display.
Note 2: All of Wh and varh will be reset even if these are not shown on the screen.
Note 3: The periodic active energy will not be reset. Another operation is necessary. (Refer to page 56)
α x (VT primary voltage) x (CT primary current)
[kW]
Digital Display
888888
Active energy
(Exported)*
Reactive energy
(Imported
lead)*
simultaneously for 2 seconds
－
Unit：non
are pressed simultaneously for 2 seconds, the measured values of Wh and varh will
PHASE
enabled, Wh and varh are reset after you enter the password.
1000
Display type
Digital Display
kWh
(Unit can be changed from
Wh/kWh/MWh.)
MWh
(Unit can be changed from
Wh/kWh/MWh.)
Expanded counting setting of menu 3 is
necessary in order to appear the screen of *.
(Refer to page 22)
Reactive energy
(Exported
lag)*
Unit：non
- 52 -
α： 1 1-phase 2-wire
2 1-phase 3-wire
3 3-phase 3-wire
√
3 3-phase 4-wire
The metering status blinks while the active
energy is being counted.
When active energy is not counted, turns OFF.
Reactive energy
(Exported
lead)*
Unit：kilo
Active energy
measurement
value
Metering
status
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