Determine power rating of an electric motor if it runs at 1440 rpm and line shaft transmits torque of 75 Nm. Assume Reduction ratio =1.6

dsuc.created: 6 years ago | dsuc.updated: 1 week ago

dsuc.updated: 1 week ago

10.36 kW

11.3 kW

7.068kW

9.12kW

Bangladesh Bank Assistant Director (Engineering -Mechanical) | 11.01.2019 সাধারণ বিজ্ঞান কাজ, ক্ষমতা ও শক্তি

dsuc.explanation

common.best_ans:

i  =  n / N
1.6  =  1440 / N
N  =  900 r.p.m
P  =  (2 π x 1440 x 75) / 60
=  7068 W
=  7.068 kW
The power rating of an electric motor is 7.068 kW

6 years ago

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Md Azizur Rahman

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