EE6501 Power System Analysis Important Questions

Unit 1

 Basic components of a power system

 Single line diagram

 Per phase and per unit analysis

 Generator

 Transformer

 Transmission line and load representation for different power system

 Primitive network

 z-bus

Unit 2

 Statement of power flow problem

 Classification of buses

 development of power flow model in complex variables form

 Seidel method

 power flow model in polar form

 Iterative solution using Newton-Raphson method

Unit 3

 Importance of short circuit analysis

 Analysis using Thevenin’s theorem

 Z-bus building algorithm

 Computations of short circuit capacity

Unit 4

 Sequence impedances

 Sequence circuits of synchronous machine

 Transformer and transmission lines

 sequence networks analysis of single line to ground

 Thevenin's theorem and Z-bus matrix

Unit 5

 Classification of power system stability

 Angle and voltage stability

 Development of swing equation

 Euler method and

 Runge-Kutta fourth order method

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