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ElectricalElectric Drives
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A 4 pole, 250 V, dc series motor has a wave-connected armature with 200 conductors. The flux per pole is 25 mWb when the motor is drawing 60 A from the supply. The armature resistance is 0.15 Ω while series field winding resistance is 0.2 Ω.Calculate the speed under this condition.

A

1500 RPM

B

1470 RPM

C

1300 RPM

D

1374 RPM

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