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A load is connected to the grid via an AC /AC controller in order to control the output rms voltage and power. The grid

A load is connected to the grid via an AC /AC controller in order to control the output rms voltage and

A load is connected to the grid via an AC /AC controller in order to control the output rms voltage and power. The grid voltage is 220 Vrms @ 50 Hz. The load is represented as a series connected R and L: R = 100 and L =50 mH Firing angles of SCRS are 90 and 270 degrees. What is the input power factor? (Vin= 220V, f =50Hz, R = 10 0, L = 50 mH, power factor = ?) (Ctrl)

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