CHAPTER 2: ELECTRICAL BACKGROUND
EPM 6000 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE 2–9
FIGURE 2–7: Power Use Over Time
The data in the above figure is reproduced in the following table to illustrate the
calculation of energy. Since the time increment of the measurement is one minute, and
since we specified a constant load over that minute, the power reading can be converted
to an equivalent consumed energy reading by multiplying the power reading by 1/60
(converting the time base from minutes to hours).
0
10
20
30
40
50
60
70
80
123456789101112131415
Time (minutes)
kilowatts