A 3 phase system is defined as follows: The source transformer: 34 Y-Y conected 10000/3000V equivalent circuit impedances as referred to the low voltage side is Z, = 1.5+j1.80 per phase. Feeder Line: it is connected between the low voltage side of the source transformer and the high voltage side of the load transformer, where the impedance is Z;= 0.8+j1.20 per phase. Load transformer: 3 Y-Y connected 3000/500V. Equivalent impedance circuit impedance as referred to the low voltage side is Zz = 0.3+ j0.40 per phase. A three phase Y connected load with Z =8+j60 per phase is connected to the low voltage side of the load transformer which is supplied by 485VLL a) Draw the system schematically. b) Find the voltages and currents on primary and secondary side of the load and source transformer. c) What is the total power drawn by the load from the system

A 3 phase system is defined as follows: The source transformer: 34 Y-Y conected 10000/3000V equivalent circuit impedances as referred to the low voltage side is Z, = 1.5+j1.80 per phase. Feeder Line: it is connected between the low voltage side of the source transformer and the high voltage side of the load transformer, where the impedance is Z;= 0.8+j1.20 per phase. Load transformer: 3 Y-Y connected 3000/500V. Equivalent impedance circuit impedance as referred to the low voltage side is Zz = 0.3+ j0.40 per phase. A three phase Y connected load with Z =8+j60 per phase is connected to the low voltage side of the load transformer which is supplied by 485VLL a) Draw the system schematically. b) Find the voltages and currents on primary and secondary side of the load and source transformer. c) What is the total power drawn by the load from the system

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 3.37P: Three single-phase two-winding transformers, each rated 25MVA,54.2/5.42kV, are connected to form a...

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Question

Electrical Engineering - Convargion Please solve the question quickly

A 3 phase system is defined as follows:
The source transformer: 34 Y-Y conected 10000/3000V equivalent circuit impedances as referred to the low voltage side
is Z, = 1.5+j1.80 per phase.
Feeder Line: it is connected between the low voltage side of the source transformer and the high voltage side of the load
transformer, where the impedance is Z;= 0.8+j1.20 per phase.
Load transformer: 3 Y-Y connected 3000/500V. Equivalent impedance circuit impedance as referred to the low voltage
side is Zz = 0.3+ j0.40 per phase.
A three phase Y connected load with Z =8+j60 per phase is connected to the low voltage side of the load
transformer which is supplied by 485VLL
a)
Draw the system schematically.
b) Find the voltages and currents on primary and secondary side of the load and source transformer.
c) What is the total power drawn by the load from the system

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