(E)ENA || Ex 12.6,12.7 & Pr 12.6,12.7 || Power in a Balanced Three-Phase System

(English) Examples 12.6 & 12.7 ||Practice 12.6 & 12.7 ||( Fundamentals of Electric Circuits Alexander & Sadiku) The video starts by discussing the fact that the total instantaneous power in a balanced three-phase system is constant. Then the average power is discussed, followed by reactive power, apparent power, and complex power. Examples 12.6: Refer to the circuit in Fig. 12.13 (in Example 12.2). Determine the total average power, reactive power, and complex power at the source and at the load Examples 12.7: A three-phase motor can be regarded as a balanced Y-load. A threephase motor draws 5.6 kW when the line voltage is 220 V and the line current is 18.2 A. Determine the power factor of the motor Practice Problem 12.6: For the Y-Y circuit in Practice Prob. 12.2, calculate the complex power at the source and at the load. Practice Problem 12.7: Calculate the line current required for a 30-kW three-phase motor having a power factor of 0.85 lagging if it is connected to a balanced source with a line voltage of 440 V    / @electricalengineeringacademy   ElectricalEngineeringAcademy Email [email protected] WhatsApp 923454030919