Q1(a) An open-circuit line voltages of 8530 V were produced by a three-phase synchronous generator when the dc exciting current, Ix is 63 A. The ac terminals are then short- circuited, and the three-line currents are found to be 950 A. Calculate the (i) synchronous reactance per phase and provide the equivalent circuit per phase (ii) terminal voltage if three 13.7 2 resistors are connected in star across the terminals.

Q1(a) An open-circuit line voltages of 8530 V were produced by a three-phase synchronous generator when the dc exciting current, Ix is 63 A. The ac terminals are then short- circuited, and the three-line currents are found to be 950 A. Calculate the (i) synchronous reactance per phase and provide the equivalent circuit per phase (ii) terminal voltage if three 13.7 2 resistors are connected in star across the terminals.

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 3.49P: Consider the single-Line diagram of a power system shown in Figure 3.42 with equipment ratings...

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