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D.C. shunt motors are used for driving?

by anonymous asked Mar 20, 2018 77 views

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by anonymous answered Mar 20, 2018

D.C. shunt motors are used for driving machine tools.

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by anonymous asked Mar 20, 2018 172 views

In case of D.C. shunt motors the speed is dependent on back e.m.f. only because?

Answer : In case of D.C. shunt motors the speed is dependent on back e.m.f. only because flux is practically constant in D:C. shunt motors. ...

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by anonymous asked Mar 20, 2018 63 views

In D.C. shunt motors as load is reduced?

Answer : In D.C. shunt motors as load is reduced the speed will remain almost constant. ...

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by anonymous asked Mar 20, 2018 78 views

Starters are used with D.C. motors because?

Answer : Starters are used with D.C. motors because to restrict armature current as there is no back e.m.f. while starting. ...

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by anonymous asked Mar 20, 2018 136 views

Why are the D.C. motors preferred for traction applications?

Answer : The D.C. motors preferred for traction applications beacuse the speed is inversely proportional to the torque and the torque is proportional to square of armature current. ...

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by anonymous asked Mar 20, 2018 71 views

During rheostat braking of D.C. series motors?

Answer : During rheostat braking of D.C. series motors motor is run as a generator. ...

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