Answered: 1. An impedance diagram of a 3 bus…

1. An impedance diagram of a 3 bus system is shown below. Convert the impedances to admittances, and develop the 3x3 Ybus matrix by inspection.

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.38P

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Concept explainers

Nodal Analysis

In the analysis of any electric circuit, nodal analysis is the method of determining the potential difference or voltage between different nodes in an electric circuit. A node is a point where two or more branches connect each other. In the nodal analysis, the voltages are determined in the terms of branch currents. The nodal analysis is also known as the node voltage method or branch current method. The nodal analysis method is one of the several applications of Kirchhoff's Current Law (KCL).

Question

11. An impedance diagram of a 3 bus system is shown below. Convert the impedances to
admittances, and develop the 3x3 Ybus matrix by inspection.
+
120v/0°
-j0.29
j0.4Ω j0.07Ω
o
j0.200
5.00 Σ
2
j0.250
j0.4Ω
O
120v/0°

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