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CHAPTER 1: THREE-PHASE POWER MEASUREMENT 100 kilowatt-hours 80 60 40 20 0 1 2 3 4 5 6 Intervals (15 mins.) 7 8 FIGURE 1–8: Energy Use and Demand Intervals As seen in this example, it is important to recognize the relationships between power, energy and demand in order to effectively control loads or to correctly monitor use. EPM 2200 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE 1–11
