20. Two single-phase transformers each rated 120 kVA are connected open delta supplying a 3-phase load of 200 hp, 0.8 pf lagging induction motor and 85% efficiency. What is the overload on each transformer? A. 4.35 kVA B. 5.72 kVA E.6.67 kVA D. 7.83 kVA

20. Two single-phase transformers each rated 120 kVA are connected open delta supplying a 3-phase load of 200 hp, 0.8 pf lagging induction motor and 85% efficiency. What is the overload on each transformer? A. 4.35 kVA B. 5.72 kVA E.6.67 kVA D. 7.83 kVA

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.45P: Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other IS kW at...

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Question

20.

20. Two single-phase transformers each rated 120 kVA are connected
open delta supplying a 3-phase load of 200 hp, 0.8 pf lagging
induction motor and 85% efficiency. What is the overload on each
transformer?
A. 4.35 kVA
B. 5.72 kVA
8.6.67 kVA
D. 7.83 kVA

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