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Tap changer Fundamentals and Maintenance

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Increase transformer reliability and life cycle through proper maintenance of Load Tap Changers (OLTC).

Topics

• Brief History of Load Tap Changing
  • The why on Load Tap Changing and Standards
• Basic Electrical Theory
  • Ratio’s and Flux
  • Electrical Configurations
• Components and Configurations
  • Stationary Components
  • Moving Components
  • Configurations
  • Gaskets and Gadgets
• Operating Principles
  • Nameplates and Windings
  • Operations Sequence
  • Paralleling
  • Controls
• Monitoring and Testing
  • Inspections and Records
  • Oil Testing
• Internal Inspections and Maintenance
  • How to Know When
  • What to Inspect
  • Be Prepared
  • Processing and Cautions
• Developing a Detailed Maintenance Program
  • Timing and Risk
  • Inspections and Records
  • Gathering Information
  • Data Forms