Maintenance Of Electric Generators

Course Code: EM29

Course Objective

  • 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


Target Audience

  • Electrical Engineers
  • Electrical Supervisors
  • Electrical Technicians
  • Electrical Project Engineers


Course Outline

DAY 1: Definitions, Communications Protocols, Interpretation and Use of Drawings, Maintenance Planning and The Use of Test Equipment

  • Generator Systems AC and DC components
  • Operation and Maintenance of Generator Systems
  • Thermal Power Generation
  • 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: The methods of generator excitations and importance of reactive power

  • Functions and Construction of the Automatic Voltage Regulator (AVR)
  • Functions and Construction of the Govenors
  • Over Fluxing
  • Types of Excitation Systems
  • Self-excitation vs. Brushless
  • Effects of over Excitation
  • Effects of under Excitation
  • Reactive power relationship to Excitation

DAY 3: Economical and mechanical impacts on over and under excitation control systems

  • Control Systems for Excitation
  • Impact of over Excitation
  • Impact of under Excitation
  • Importance of the Capability Curve
  • Interpreting the Capability Curve
  • Generator Stator Thermal Effects
  • Generator Rotor Thermal Effects
  • Improvements of Generators Excitation Systems

Day 4: The Generator Circuit Breaker, Operation of Generator Step Up Transformer and Power Monitoring

  • Generators Circuit Breaker Construction
  • Vacuum and Gas Filled Generator Circuit Breakers Characteristics
  • Construction of Power Transformers
  • Generator Step Up Transformer (GSU)
  • GSU selection criteria
  • Power Monitoring
  • Load Frequency Control
  • Optimisation of Generator output related to speed, frequency and excitation

​​​​​​​DAY 5: Common Generator Faults, Numerical Protection Relays Functionalities and Synchronisation

  • Numerical Relay Generator Protection
  • Generator Earth Fault Relays
  • Phase Imbalance
  • Synchronisation Generator conditions and merits
  • Common Generator Problems
  • Cooling of Generators
  • Online Monitoring of Generator
  • The design of financial models for forecasting and decision-making

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Date & Location

Date : 12 May 2019

Duration : 5 days

Place : Kuala Lumpur

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Date : 15 September 2019

Duration : 5 days

Place : Jakarta

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