(b) A 15 HP, 240 V, 1150 rpm shunt motor draws 55 A when operating at rated conditions. The resistance of shunt field winding is 109.1 2 and the resistance of armature is 0.364 2. Determine the no- load speed, assuming the total loss at no-load is 970.6 W.

(b) A 15 HP, 240 V, 1150 rpm shunt motor draws 55 A when operating at rated conditions. The resistance of shunt field winding is 109.1 2 and the resistance of armature is 0.364 2. Determine the no- load speed, assuming the total loss at no-load is 970.6 W.

Operations Research : Applications and Algorithms

4th Edition

ISBN:9780534380588

Author:Wayne L. Winston

Publisher:Wayne L. Winston

Chapter11: Nonlinear Programming

Section: Chapter Questions

Problem 21RP

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A naïve solution for the above-stated problem is to evaluate all of the possible combinations of different pieces of varying size to find the maximum revenue-generating combination. Although this method seems the easiest and quick to practice, it has exponential time complexity. So there is a need to figure out a better method than this.

Question

(b) A 15 HP, 240 V, 1150 rpm shunt motor draws 55 A when operating at rated conditions. The resistance of shunt field winding is 109.1 Q and the resistance of armature is 0.364 Q. Determine the no- load speed, assuming the total loss at no-load is 970.6 W.

(b) A 15 HP, 240 V, 1150 rpm shunt motor draws 55 A when
operating at rated conditions. The resistance of shunt field winding is
109.1 2 and the resistance of armature is 0.364 2. Determine the no-
load speed, assuming the total loss at no-load is 970.6 W.

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