SYLLABUS: Design, Operations and Maintenance of Large Turbo-Generators

Course date:            October 16-20, 2017 (5-day technical course)
Course location:     Irvine, California, USA
Course fee:               $2,150 usd
Download PDF:     2017_5 Day Large Generator Course

                               REGISTER HERE!

Classes are Monday – Friday, 8:00am to 4:30pm

The 5-day Seminar covers the following topics:

PRINCIPLES OF OPERATION OF SYNCHRONOUS MACHINES

  • Introduction to Basic Notions on Electric Power
  • Electrical – Mechanical Equivalence
  • Alternated Circuits (AC) / Three-Phase Circuits
  • Basic Principles of Machine Operation / The Synchronous Machine
  • Basic Operation of the Synchronous Machine

GENERATOR DESIGN AND CONSTRUCTION

  • Stator Core and Frame
  • Flux and Armature Reaction / Electro-magnetics
  • End-Region Effects and Flux Shielding
  • Stator Core and Frame Forces
  • Stator Windings and Wedges
  • End-Winding Support Systems
  • Stator Winding Configurations
  • Stator Terminal Connections
  • Rotor Forging
  • Rotor Winding and Slot Wedges / Amortisseur Winding
  • Retaining-Rings
  • Bore Copper and Terminal Connectors
  • Slip/Collector Rings and Brushgear
  • Rotor Shrink Coupling / Rotor Turning Gear
  • Bearings
  • Air and Hydrogen Cooling / Rotor Fans
  • Hydrogen Containment / Hydrogen Coolers

GENERATOR AUXILIARY SYSTEMS

  • Lube Oil System
  • Hydrogen Cooling System
  • Seal Oil System
  • Stator Cooling Water System
  • Exciter Systems

OPERATION AND CONTROL

  • Basic Operating Parameters
  • Operating Modes
  • Machine Curves
  • Special Operating Conditions
  • Basic Operation Concepts
  • System Considerations
  • Grid Induced Torsional Vibrations
  • Excitation and Voltage Regulation
  • Performance Curves
  • Sample of Generator Operating Instructions

MONITORING AND DIAGNOSTICS

  • Generator Monitoring Philosophies
  • Simple Monitoring with Static Hi Level Alarm Limits
  • Dynamic Monitoring with Load Varying Alarm Limits
  • Artificial Intelligence Diagnostic Systems
  • Monitored Parameters

GENERATOR PROTECTION

  • Basic Philosophy
  • Generator Protective Functions
  • Brief Description of Protective Functions
  • Specialized Protection Schemes
  • Tripping and Alarming Methods

INSPECTION PRACTICES AND METHODOLOGIES

  • Site Preparation
  • Experience and Training
  • Safety Procedures – Electrical Clearances
  • Inspection Frequency
  • Generator Accessibility
  • Inspection Tools
  • Inspection Forms

STATOR INSPECTION

  • Stator Frame and Casing
  • Stator Core
  • Stator Windings
  • Phase Connectors and Terminals
  • Hydrogen Coolers

ROTOR INSPECTION

  • Rotor Removal
  • Rotor Cleanliness
  • Retaining Rings
  • Fretting/Movement at Interference-Fit Surfaces of Wedges and Rings
  • Centering (Balance) Rings / Fan Rings or Hubs / Fan Blades
  • Bearings and Journals
  • Balance Weights and Bolts
  • End Wedges and Damper Windings / Other Wedges
  • Windings General / End-Windings and Main Leads
  • Collector Rings / Collector Ring Insulation
  • Bore Copper and Radial (Vertical) Terminal Stud Connectors
  • Brush-Spring Pressure and General Condition / Brush Rigging
  • Shaft Voltage Discharge (Grounding) Brushes
  • Rotor Winding Main Lead Hydrogen Sealing – Inner and Outer
  • Circumferential Pole Slots (Body Flex Slots)
  • Blocked Rotor Radial Vent Holes – Shifting of Winding and/or Insulation
  • Couplings and Coupling-Bolts / Bearing Insulation / Hydrogen Seals

AUXILIARIES INSPECTION

  • Lube Oil System
  • Hydrogen Cooling System
  • Seal Oil System
  • Stator Cooling Water System
  • Exciters

GENERATOR MAINTENANCE TESTING

  • Stator Core Mechanical Tests
  • Stator Core Electrical Tests
  • Stator Winding Mechanical Tests
  • Water Cooled Stator Winding Tests
  • Stator Winding Electrical Tests
  • Rotor Mechanical Testing
  • Rotor Electrical Testing
  • Hydrogen Seals / Bearings
  • Thermal Sensitivity Test & Analysis
  • Heat Run Testing
  • Hydrogen Leak Detection

MAINTENANCE

  • General Maintenance Philosophies
  • Operational and Maintenance History
  • Maintenance Intervals / Frequency
  • Type of Maintenance
  • Work Site Location / Work Force / Spare Parts
  • Uprating
  • Life Cycle Management
  • Single Point Vulnerability