a) The power flow diagram of shunt DC generator is shown in figure below. The rotational losses of the generator ar 120W

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a) The power flow diagram of shunt DC generator is shown in figure below. The rotational losses of the generator ar 120W

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A The Power Flow Diagram Of Shunt Dc Generator Is Shown In Figure Below The Rotational Losses Of The Generator Ar 120w 1
A The Power Flow Diagram Of Shunt Dc Generator Is Shown In Figure Below The Rotational Losses Of The Generator Ar 120w 1 (48.92 KiB) Viewed 41 times
a) The power flow diagram of shunt DC generator is shown in figure below. The rotational losses of the generator ar 120W. Find the following: i. Total copper loss. ii. Mechanical developed power. iii. Overall efficiency, n of the generator Pin Pu The mechanical power developed. The output power. Pm 465 W 450 W 18 kW (4 marks) b) A compound DC motor draws a full load line current of 30 A from a terminal voltage of 240 V. The armature, series and shunt field resistance are 0.4 №, 0.05 ≤ and 120 , respectively. The machine runs at a speed of 1200 rpm with friction and windage losses of 370 W. Compute the: i. The counter emf of the motor. ii. iii. (6 marks)
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