A separately excited 300 V DC shunt motor under no-load runs at 900 rpm drawing an armature current of 2 A

February 7, 2022

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A separately excited 300 V DC shunt motor under no-load runs at 900 rpm drawing an armature current of 2 A

Q. A separately excited 300 V DC shunt motor under no-load runs at 900 rpm drawing an armature current of 2 A. The armature resistance is 0.5 Ω and leakage inductance is 0.01 H. When loaded, the armature current is 15 A. Then the speed in rpm is.

A. 881 RPM

B. 780 RPM

C. 1000 RPM

D. 1200 RPM

Answer: 881 RPM

A separately excited 300 V DC shunt motor under no-load runs at 900 rpm drawing an armature current of 2 A

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A cumulative compound long shunt motor is driving a load at rated torque and rated speed. If the series is shunted by a resistance equal to the resistance of the series field, keeping the torque constant.

A separately excited 300 V DC shunt motor under no-load runs at 900 rpm drawing an armature current of 2 A

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