A 220 V shunt DC motor rotates with speed of 1800 rev/min at no load condition when the current is 8 A. It has a field resistance of 6 , an armature resistance of 3 2 and a brush drop of 3 V. Assume the flux does not vary with load. (a) Find the speed of the motor in rev/min when the motor current is 46 A. (b) From the result in (a), find the mechanical torque and power generated by the motor.

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A220 Vshunt DC motor rotates with speed of1800rev/min.( need handwritten only ,otherwise downvote.)
                                      

A 220 V shunt DC motor rotates with speed of 1800 rev/min at no load condition when the current is
8 A. It has a field resistance of 6 2, an armature resistance of 3 2 and a brush drop of 3 V. Assume
the flux does not vary with load.
(a) Find the speed of the motor in rev/min when the motor current is
46 A.
(b) From the result in (a), find the mechanical torque and power generated by the motor.
Transcribed Image Text:A 220 V shunt DC motor rotates with speed of 1800 rev/min at no load condition when the current is 8 A. It has a field resistance of 6 2, an armature resistance of 3 2 and a brush drop of 3 V. Assume the flux does not vary with load. (a) Find the speed of the motor in rev/min when the motor current is 46 A. (b) From the result in (a), find the mechanical torque and power generated by the motor.
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