Yokogawa PR300 Power and Energy Meter - Manual (Page 48)

Operation for Display of Measurement Items and Measurement Method
4-7 IM 77C01E01-01E
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4.5 Displaying Energy Values
This section explains the measuring range and display method of active energy, regenerative energy,
LEAD reactive energy, LAG reactive energy, and apparent energy.
Example Display and Measuring Ranges of Active Energy and Regenerative Energy
Regenerative
energy
Active energy
Secondary rated power
ϫ VT ratio ϫ CT ratio
Less than 100 kW
100 kW to less than 1 MW
1 MW to less than 10 MW
10 MW or greater
Type
A
B
C
D
Measuring range
0 to 99999 kWh
0.00 to 999.99 MWh
0.0 to 9999.9 MWh
0 to 99999 MWh
* For all the four types in the table, decimal places that
are not appearing can be displayed by key operation
(refer to “Operation for Energy Value Display” on the
next page).
Supplementary
unit
(refer to the
table on the right)
“-” will always appear when the displayed
value is a regenerative energy value.
Example Display and Measuring Ranges of LEAD Reactive Energy and LAG Reactive Energy
LEAD reactive
energy
LAG reactive
energy
Secondary rated power
ϫ VT ratio ϫ CT ratio
Less than 100 kW
100 kW to less than 1 MW
1 MW to less than 10 MW
10 MW or greater
Type
A
B
C
D
Measuring range
0 to 99999 kvarh
0.00 to 999.99 Mvarh
0.0 to 9999.9 Mvarh
0 to 99999 Mvarh
* For all the four types in the table, decimal places that
are not appearing can be displayed by key operation
(refer to “Operation for Energy Value Display” on the
next page).
Supplementary
unit
(refer to the
table on the right)
“-” will appear when the displayed
value is a LEAD reactive energy value.
Example Display and Measuring Ranges of Apparent Energy
Apparent
energy
Secondary rated power
ϫ VT ratio ϫ CT ratio
Less than 100 kW
100 kW to less than 1 MW
1 MW to less than 10 MW
10 MW or greater
Type
A
B
C
D
Measuring range
0 to 99999 kVAh
0.00 to 999.99 MVAh
0.0 to 9999.9 MVAh
0 to 99999 MVAh
* For all the four types in the table, decimal places that
are not appearing can be displayed by key operation
(refer to “Operation for Energy Value Display” on the
next page).
Supplementary
unit
(refer to the
table on the right)
NOTE
When the power is below the integrated low-cut power, it is not integrated as energy.