12.a. For performing dielectric-strength tests on insulating materials, two transformers are connected in a A. parallel combination. B. series combination. C. polyphase arrangement. D. cascade arrangement.

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.11MCQ: For a short-circuit test on a 2-winding transformer, with one winding shorted, can you apply the...

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Question

12.a. For performing dielectric-strength tests on insulating materials, two transformers are connected in a
A. parallel combination.
B. series combination.
C. polyphase arrangement.
D. cascade arrangement.
12.b. A demountable stud bushing on high-voltage leads eliminates the need for
A. a gasket.
B. an oil stop.
C. a terminal lug.
D. a porcelain bushing.

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