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Is it possible measure 1 phase consumption costs and multiply it by 3 to get 3 consumption phase costs?
Wiki User
∙ 15y ago
It is not possible. These are my explanations. a.If the three-phase load is balance, the power per phase is P=VpIpcosѲ and the total power is P=3 VpIp cosѲ where Vp and Ip are phase voltage and phase current, respectively. However, in actual situation metering instrument (Kw or KW-hr meter) for convinience is connected to measure line voltage and line current which gives the total three-phase power P=1.732 VLIL cosѲ. The value 1.732 is the square root of 3. b. If the load is not balance it is obvious that it is not possible. I hope you are satisfied with my explanations.
Wiki User
∙ 15y ago
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