Three similar resistors connected in star draw a line current of 10 A from a 380-V, 3-phase mains. To what value should the line voltage be changed to obtain the same line current with the resistors connected in delta?

Three similar resistors connected in star draw a line current of 10 A from a 380-V, 3-phase mains. To what value should the line voltage be changed to obtain the same line current with the resistors connected in delta?

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 3.33P: Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage...

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Concept explainers

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.

Question

Three similar resistors connected in star draw a line current of 10 A from a 380-V, 3-phase mains.
To what value should the line voltage be changed to obtain the same line current with the resistors
connected in delta?

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