32. For the rotational mechanical system with gearsshown in Figure P2.18, find the transfer function,G(s)=3(s)/T(s). The gears have inertia and bear-ing friction as shown. [Section: 2.7]7(1)N₁N₂J2, D2N3J3, D3 83(1)N4J4. DAFIGURE P2.18

Answered: 32. For the rotational mechanical…

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...

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20 What is countertorque a measure of? PRACTICAL APPLICATIONS ou are working as an electrician in a large steel manufacturing plant, and Y in the of doing preventive maintenance on a large DC you are generator. You have megged both the series and shunt field windings and found that each has over 10 M2 to ground. Your ohmmeter, however, indicates a resistance of 1.5 2 across terminals S, and S,. The ohmmeter indicates a resistance of 225 N between terminals F, and F2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer. process
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30. For each of the rotational mechanical systems shown in Figure P2.16, write, but do not solve, the equations of motion. [Section: 2.6] T() 0() I N-m-s/rad 78 N-m-s/rad kg-m2 000 kg-m2 3N-m/rad 9N-m/rad (a)
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You are working as an electrician in a large steel manufacturing plant, and you are in the process of doing preventive maintenance on a large DC generator. You have megged both the series and shunt field windings and found that each has over 10 M to ground. Your ohmmeter, however, indicates a resistance of 1.5 across terminals S1andS2. The ohmmeter indicates a resistance of 225 between terminals F1andF2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer.
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The shunt winding of a machine has a resistance of 80 ohms and an inductance of 4 H is suddenly switched on to a 220-V supply. Find the time taken for the current to rise to half its steady state value.
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32. For the rotational mechanical system with gears shown in Figure P2.18, find the transfer function, G(s)=3(s)/T(s). The gears have inertia and bear- ing friction as shown. [Section: 2.7] 7(1) N₁ N₂ J2, D2 N3 J3, D3 83(1) N4 J4. DA FIGURE P2.18