Handbook of Large Turbo-Generator Operation and Maintenance, 2nd Edition

by ;
Format: eBook
Pub. Date: 2009-09-01
Publisher(s): Wiley-IEEE Press
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Summary

This book offers the complete scope of information regarding operation and maintenance of all types of turbine-driven generators built in the world. The information presented is designed to inform the reader about actual machine operational problems and failure modes that occur in generating stations and other types of facilities.

Table of Contents

Preface
Acknowledgments
Theory, Construction, And Operation
Principles of Operation of Synchronous Machines
Introduction to Basic Notions on Electric Power
Electrical-Mechanical Equivalence
Alternating Current (ac)
Three-Phase Circuits
Basic Principles of Machine Operation
The Synchronous Machine
Basic Operation of the Synchronous Machine
Generator Design and Construction
Stator Core
Stator Frame
Flux and Armature Reaction
Electromagnetics
End-Region Effects and Flux Shielding
Stator Core and Frame Forces
Stator Windings
Stator Winding Wedges
End-Winding Support Systems
Stator Winding Configurations
Stator Terminal Connections
Rotor Forging
Rotor Winding
Rotor Winding Slot Wedges
Amor isseur winding
Retaining Rings
Bore Copper and Terminal Connectors
Slip-Collector Rings and Brush Gear
Rotor Shrink Coupling
Rotor Turning Gear
Bearings
Air and Hydrogen Cooling
Rotor Fans
Hydrogen Containment
Hydrogen Coolers
References
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
References
Monitoring and Diagnostics
Generator Monitoring Philosophies
Simple Monitoring with Static High-Level Alarm Limits
Dynamic Monitoring with Load-Varying Alarm Limits
Artificial Intelligence Diagnostic Systems
Monitored Parameters
References
Generator Protector
Basic Protection Philosophy
Generator Protective Functions
Brief Description of Protective Functions
Specialized Protection Schemes
Tripping and Alarming Methods
References
Inspection, Maintenance, And Testing
Inspection Practices and Methodology
Site Preparation
Experience and Training
Safety procedures-Electrical Clearances
Inspection Frequency
Generator Accessibility
Inspection Tools
Inspection Forms
References
Stator Inspection
Stator Frame and Casing
Stator Core
Stator Windings
Phase Connectors and Terminals
Hydrogen Coolers
References
Additional Reading
Rotor Inspection
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
Rotor Windings-Slot Region
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
Rotor-Body Zone Rings
Rotor Removal
References
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 Testing and Analysis
Heat-Run Testing
Hydrogen Leak Detection
References
Maintenance
General Maintenance Philosophies
Operational and Maintenance History
Maintenance Intervals/Frequency
Types of Maintenance
Work Site Location
Workforce
Spare Parts
Uprating
Long-Term Storage and Mothballing
Life Cycle Management (LCM)
Single Point Vulnerability (SPV) Analysis
References
Index
Table of Contents provided by Publisher. All Rights Reserved.

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