To attain optimal efficiency, reliability, and lifespan of electrical power generators, it is crucial to comprehend their characteristics, selection criteria, common issues, repair techniques, as well as preventive and predictive maintenance measures. This course is essential for individuals involved in generator selection, application, maintenance, and operation. It offers the latest technological advancements in the field. Participants will gain insights into the operational principles of generators and receive guidelines and regulations for achieving successful operation. By completing this course, attendees will be equipped with the knowledge and skills necessary to ensure the efficient and effective functioning of electrical generators.

Course Objectives:

Upon the successful completion of this course, each participant will be able to:-

Describe how generator functions
Describe active and reactive power
Describe the major components used in the construction of an AC generator
Explain the operation and maintenance of the most common excitation systems
Explain how a speed governor alters generator output in response to a frequency deviation
Explain how the voltage regulator alters generator output in response to a voltage deviation
Discuss the causes and effects of both voltage and frequency oscillations and the impact they each have on power system dynamics
Discuss abnormal generator operation and recommended actions for generator protection.
Describe the various repair methods for defective component condition
Describe the procedures for the various generator tests and the safety precautions for the conducting of these electrical tests.

Who Should Attend?

Managers, engineers, and technicians, responsible for the design, installation, testing machines, and maintenance and operation of electrical substations and power stations, who require to refresh their knowledge and skills in working with circuit breakers at high voltage levels.

Course Outlines:

Fundamentals of power systems and symmetrical components

The meaning of phasors
Single-phase instantaneous power
Complex power, Personal computer program
Balanced three-phase circuits
Power in three-phase, Definition of symmetrical components,
Sequence networks of impedance loads
Sequence networks of series impedances
Power in sequence networks

Fundamentals of excitation systems

What is excitation system?
Why excitation system is needed?
Operation of excitation system, Types of excitation systems,
Types of transmission lines (short, medium and long)
Lossless transmission lines, Maximum power-flow
Reactive compensation techniques

Excitation systems and AVR in power flow and symmetrical faults

The application of AVR in power flow and fault situations.
Direct solutions of linear algebraic equations
The solution of nonlinear algebraic equations
Power flow problems
Power flow solutions (Gauss-Seidel and Newton- Raphson)
Sparsity techniques, fast decoupled load flow
R-L series circuit transients, Three-phase short circuits
Bus impedance matrix, Bus admittance matrix
Personal computer program

Power system controls and transient stability

Generator voltage control, Turbine governor control
Load frequency control, Economic dispatch
Swing equation, Synchronous machine model
Equal area criterion, Single and multi-machines stability

Digital AVR and voltage regulator

Exciter principles, Voltage regulator
DC – AC exciter: theory of operation – main parts – advantages and Disadvantages – Troubleshooting – sparking problem and its remedy
Brushless exciter: theory of operation – main parts – advantages and disadvantages – troubleshooting
Static exciter: theory of operation – main parts – advantages and disadvantages – troubleshooting
Excitation system upgrading considerations and requirements

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