Answered: A 400 MVA synchronous machine has H₁ =…

A 400 MVA synchronous machine has H₁ = 4.6 MJ/MVA and a 1200 MVA machine has H₂=3.0 MJ/MVA. The two machines operate in parallel in a power plant. Find out Ha relative to a 100 MVA base.

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 2.27P: An industrial load consisting of a bank of induction motors consumes 50 kW at a power factor of 0.8...

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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

A 400 MVA synchronous machine has H, = 4.6 MJ/MVA and a 1200 MVA
machine has H₂=3.0 MJ/MVA. The two machines operate in parallel in a power plant. Find out
H relative to a 100 MVA base.

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