Problem 1 A 3-phase, star-connected alternator generates 6,360 V per phase and supplies 500 kW at a p.f. 0.9 lagging to a load through a step-down transformer of turns 40: 1. The transformer is delta connected on the primary side and star-connected on the secondary side. Calculate a) the value of the line volts at the load. b) the current in alternator windings c) The current in transformer primary windings d) The current in transformer secondary windings

Problem 1 A 3-phase, star-connected alternator generates 6,360 V per phase and supplies 500 kW at a p.f. 0.9 lagging to a load through a step-down transformer of turns 40: 1. The transformer is delta connected on the primary side and star-connected on the secondary side. Calculate a) the value of the line volts at the load. b) the current in alternator windings c) The current in transformer primary windings d) The current in transformer secondary windings

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 3.54P: An infinite bus, which is a constant voltage source, is connected to the primary of the...

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