C 2. Comparing the transformer cores of core-form and shell-form transformers shows that the A. shell form is used exclusively in small low-voltage transformers. BR B. core form allows more flexible coil grouping.< C. shell form provides lower reactance without increasing the transformer size. B2/AS CM D. core form makes possible wider coils and better oil circulation. -

C 2. Comparing the transformer cores of core-form and shell-form transformers shows that the A. shell form is used exclusively in small low-voltage transformers. BR B. core form allows more flexible coil grouping.< C. shell form provides lower reactance without increasing the transformer size. B2/AS CM D. core form makes possible wider coils and better oil circulation. -

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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Similar questions

In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across a transformer, the voltage base is changed in proportion to the transformer voltage ratings. (a) True (b) False
If we increase the load than core loss and copper loss will... Decrease Increase Remain same
Only detailed description and complete answer is required.
A 50 Hz 1-phase transformer has a turn-ratio of 6. The resistances are 0.90 ohm and 0.03 ohm and the reactance’s 5 ohm and 0.13 Q for high voltage and low voltage respectively. Determine (a) the voltage to be applied to the high voltage side to obtain full load current of 200 A in the low voltage winding on short circuit (b) the p.f. on short circuit.
i need the answer quickly
P2-Draw the equivalent circuit of a single-phase transformer and explain how the core losses are almost invariant to the load (current). How do they depend on the terminal voltages of the transformer? Also, using the equivalent circuit explain how the copper losses depend on the load current.
What conclusions we come up with after doing open circuit test on single phase transformer.
8- In core design of power transformer the number of steps increased as the eross-sectional area increased to Increase: a) The leakage inductance. b) The cooling oil paths. c) The flux density. 9- The percentage impedance drop is an effective character of the transformer because: a) It increases the efficiency. b) It reduces leakage reactance. c) It improves the regulation.
A transformer core is laminated in order to ....................................? (A) reduce hysteresis loss and eddy current loss (B) reduce only hysteresis loss (C) reduce copper loss (D) reduce all of the above losses (E) None of the above.
12.a. Comparing the transformer cores of core-form and shell-form transformers shows that thea. shell form provides lower reactance without increasing the transformer size.b. core form makes possible wider coils and better oil circulation.c. shell form is used exclusively in small low-voltage transformers.12.b. Distribution transformers are generally protected from damage due to excessive internal temperatures,by the operation of aA. lightning arrester.B. circuit breaker.C. surge diverter.
B/ Fill in the blanks: 1. The purpose of providing the iron core in the transformer is to 2. A transformer transforms... 3. Power transformers are designed to have maximum efficiency at 4. The transformer ratings are usually expressed in terms of menm
Only detailed descriptionand and complete answer is required.