4 Functions
QE81WH4W
Present value
Max. value
Min. value
Date/time of max. value occurrence
Power factor
Date/time of min. value occurrence
Frequency Present
value
Electric energy (consumption)
Electric energy (regeneration)
Electric energy
Reactive energy (consumption lag)
Periodic electric energy 1
Periodic electric energy
*2
Periodic electric energy 2
*2:
When the output device is ON, the active power (consumption) is measured.
(2) Total, maximum, and minimum values
The following describes how to calculate the maximum, minimum, and total values.
Item
Formula
Average value current
Average value current
= (1-phase c 2-phase c 3-phase current) / 3
Average value voltage
(L-L)
Average value voltage (L-L)
= (voltage V12 + voltage V23 + voltage V31) / 3
Average value voltage
(L-N)
Average value voltage (L-N)
= (volt volt voltageV3N) / 3
Maximum current
demand
Highest value among 1-phase current demand, 2-phase current demand,
3-phase current demand, or N-phase current demand
(The highest value after the max./min. value was reset.)
Minimum current
demand
Lowest value among 1-phase current demand, 2-phase current demand, or
3-phase current demand
(The lowest value after the max./min. value was reset.)
Maximum value
voltage (L-L)
Highest value among the 1 - 2 line voltage, the 2 - 3 line voltage, or the 3 - 1
line voltage
(The highest value after the max./min. value was reset.)
Minimum value voltage
(L-L)
Lowest value among the 1 - 2 line voltage, the 2 - 3 line voltage, or the 3 - 1 line
voltage
(The lowest value after the max./min. value was reset.)
Maximum value
voltage (L-N)
Highest value among the 1 - 0 phase voltage, the 2 - 0 phase voltage, or the 3 -
0 phase voltage
(The highest value after the max./min. value was reset.)
Minimum value voltage
(L-N)
Lowest value among the 1 - 0 phase voltage, the 2 - 0 phase voltage, or the 3 -
0 phase voltage
(The highest value after the max./min. value was reset.)
4 - 3
