Generator Excitation Systems

introduction
this Generator Excitation Systems training course has been developed for the participants to learn new skills associated with Generator systems and refresh their previous skills and training, to further advancement of knowledge.
The successful operation of any Generating Systems ultimately depends on how well the inspection, testing, maintenance and troubleshooting functions are carried out. Well-developed procedures and planning will in the long run result in reduced costs, equipment down time, parts requirements and troubleshooting complexity.
OBJECTIVES
By the end of this training course, participants will be able to:
• Elaborate on different types of power system generation
• Discuss operations of the steam and gas turbines
• Examine different types excitation systems
• Explore different types of switch gear associated with generator systems
• Identify automatic voltage regulating techniques and governors
• Describe troubleshooting techniques and online monitoring
Course Outline
DAY 1
• Generator Systems AC and DC Components
• Operation and Maintenance of Generator Systems
• Thermal Power Generation and Combine Cycle Power Plant
• Synchronous Machine Stator Construction and Characteristics
• Synchronous Machine Rotor Construction and Characteristics
• Instrumentation Associated with Generator Systems
• Single Line Diagrams
• IEC 61850 and GOOSE
DAY 2
• Functions and Construction of the Automatic Voltage Regulator (AVR)
• Digital Voltage Regulator for Generators
• Functions and Construction of the Governors
• Permanent Magnets Generators
• Over Fluxing and Types of Excitation Systems
• Self-excitation vs. Brushless
• Effects of Over & Under Excitation
• Reactive Power Relationship to Excitation

DAY 3
• Control Systems for Excitation
• Impact of Over & Under Excitation
• Importance of The Capability Curve and P Q diagrams
• Interpreting The Capability Curve
• Capability Curve Software
• Generator Stator Thermal Effects
• Generator Rotor Thermal Effects
• Improvements of Generators Excitation Systems
DAY 4
• Generators Circuit Breaker Construction
• Vacuum and Gas Filled Generator Circuit Breakers Characteristics and Arc Extinction
• Construction of Power Transformers
• Generator Step Up Transformer (GSU)
• GSU Selection Criteria
• Power Monitoring
• Load Frequency Control
• Optimization of Generator Output Related to Speed, Frequency and Excitation
DAY 5
• Numerical Relay Functionalities Related to Generator Protection
• Generator Earth Fault Relays
• Causes of Phase Imbalance
• Synchronization Generator Conditions and Merits
• Common Generator Problems
• Cooling of Generators
• Online Monitoring of Generators
• Wrap-up Session