Core losses and rotational losses in a dc generator can occur even at no load conditions. a. True b. False 2. Copper losses in a dc generator includes _____. a. Brush contact and armature winding losses b. Shunt field loss c. Core loss d. Shunt field loss, brush

Core losses and rotational losses in a dc generator can occur even at no load conditions. a. True b. False 2. Copper losses in a dc generator includes _____. a. Brush contact and armature winding losses b. Shunt field loss c. Core loss d. Shunt field loss, brush

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

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.3P

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Question

1. Core losses and rotational losses in a dc generator can occur even at no load conditions.

a. True

b. False

2. Copper losses in a dc generator includes _____.

a. Brush contact and armature winding losses

b. Shunt field loss

c. Core loss

d. Shunt field loss, brush contact loss and armature winding loss

3. The series field in a series dc generator consist of _____ turns of _____ wires.

a. heavy, few

b. few, heavy

c. heavy, heavy

d. few, few

4.Discounting the voltage generated due to residual magnetism, the series generator can generate a fair amount of voltage even without load.

a. True

b. False

5. In a short-shunt compound dc generator, the shunt field circuit is connected in _____ to the _____ field/circuit.

a. series, series

b. parallel, series

c. series, armature

d. parallel, armature

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