Purchase Solution

Shunt-wound motor: Maximum start-up torque

Not what you're looking for?

Ask Custom Question

(a) A shunt-wound motor set was designed to run from a 250 V d.c. supply. It had an effective armature resistance of 3 m Ohm and when run at 3000 rev/min it drew 10 kA.

(i) The maximum permissible supply voltage at start-up if the motor set is not to draw more than 20 kA when started from rest.
(ii) The maximum start-up torque available.

Purchase this Solution

Solution Summary

The solution is to be used more like guidance. It does not give numerical computation, but just formula wise computation.

Solution Preview

Please refer to the attached file for the solution.
I hope it helps.

Solution for Posting #2090
Shunt DC Motor
(i). When the motor start from the rest, the speed is zero, i.e., m = 0 ...

Purchase this Solution

Free BrainMass Quizzes
The Moon

Test your knowledge of moon phases and movement.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Basic Physics

This quiz will test your knowledge about basic Physics.

Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.