GENERAL INSTRUCTIONS:SOLVE EACH OF THE FOLLOWING PROBLEMS AND SHOW YOUR SOLUTIONS FOREACH ITEM.1. A long-shunt compound generator supplies 50 kW at 230 V. the total field- and armature circuitresistances are 46 ohms and 0.03 ohms , respectively. The brush-contact drop is 2 V. Determine thepercent voltage regulation. Neglect the armature reaction.

% voltage regulation =100× (No load terminal voltage - full load terminal voltage)/(full load…

Answered: GENERAL INSTRUCTIONS: SOLVE EACH OF THE…

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.4P

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A thicker wire is used in the DC series field winding than DC shunt field winding in DC machines. * O because it carries the load current. O to prevent mechanical vibrations. O to provide strength. O to produce large flux. The speed of a DC motor can be changed by varying - armature resistance circuit O flux per pole O voltage source O all of above
1.Two identical shunt generators running in parallel, each with armature resistance of 0.02 ohms and field resistance of 50 ohms. The combined load current is 5000A. The field are so excited that the generated voltages of one machine is 610V and the other is 600V. The terminal voltage of this parallel combination will be. www Ish1 Rh1 a.350-360 V b.450-460 V c. 550-560V Rat www az G₂ Raz 5000 A Ish2
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Question 43
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A shunt generator has an induced voltage on open circuit of 127 V. When the machine is on load the terminal voltage is 120 V. The load current if the field resistance be 15 ohm and armature resistance be 0.02 ohm.
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Please solve this problem step by step and illustrate your answer properly. Write your answer in a piece of paper please. Box the final answer.
At rated voltage, a 125 kw, 300-V long shunt compound system provides power with a stray power loss of 3.69 kW. The winding resistors are as follows: armature=0.023, series field=0.04, shunt field=75. Under this condition, find the efficiency of the system.

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