Explanation Given data: Refer to Figure 12.51 in the textbook for the balanced delta-delta connected circuit. Calculation: Consider the following values to design the given circuit and find the line and phase currents. The load impedance is 12 + j 9 Ω / phase . The resistors V a b , V b c , and V c a are 210 ∠ 0 ° V , 210 ∠ − 120 ° V , and 210 ∠ 120 ° V respectively. Modify the Figure 12.51 by indicating all the parameters. The modified circuit as shown in Figure 1. Consider that the value of load impedance. Z L = 12 + j 9 Ω = 15 ∠ 36.87 ° Ω Consider the expression for the current through the terminals A and B . I A B = V A B Z L (1) Consider the expression for the current through the terminals B and C . I B C = I A B ∠ − 120 ° (2) Consider the expression for the current through the terminals A and C . I A C = I A B ∠ 120 ° (3) Substitute 15 ∠ 36.87 ° Ω for Z L and 210 ∠ 0 ° V for V A B in Equation (1). I A B = 210 ∠ 0 ° V 15 ∠ 36.87 ° Ω = 14 ∠ − 36.87 ° A Substitute 14 ∠ − 36.87 ° A for I A B in Equation (2). I B C = ( 14 ∠ − 36.87 ° A ) ∠ − 120 ° = 14 ∠ − 36.87 ° − 120 ° A =14 ∠ − 156.87 ° A Substitute 14 ∠ − 36.87 ° A for I A B in Equation (3)

6th Edition

ISBN: 9780078028229

Author: Charles K Alexander, Matthew Sadiku

Publisher: McGraw-Hill Education

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Chapter 12, Problem 20P

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Chapter 12, Problem 19P

Chapter 12, Problem 21P

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Chapter 12 Solutions

Fundamentals of Electric Circuits

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Design a problem to provide better understanding about balanced delta-delta connected circuits.

Solution Summary: The author explains how to design a balanced delta-delta connected circuit and find the line and phase currents.

Design a problem to provide better understanding about balanced delta-delta connected circuits.

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Chapter 12 Solutions