Distance - Electrical Generators and Excitation Systems: Selection, Applications, Operation, Diagnostic Testing, Refurbishment, Troubleshooting and Maintenance (3.0 CEU's)


  • Looking for professional development but do not have the time to take off from work?

  • Looking for refresher course on specific engineering topics and cannot find an intensive course to serve your needs?

  • This may be your ideal Professional Development course!

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This course is approximately 6-8 weeks in duration.

Learning Method:

  • The PDDP program is more of a self-guided learning style.

  • You are required to read the notes and materials given, complete the follow-up assignments on your own, send in your questions prior to your 1 hour webinar meeting (if required) and be involved in live discussion via the internet.

  • Once you have completed the course, you will receive a certificate of completion

Course Description:

Maximum efficiency, reliability, and longevity of the various types of generators, exciters, voltage regulators, and protective systems are of great concern to many industries. These objectives can only be achieved by understanding the characteristics, selection criteria, common problems and repair techniques, preventive and predictive maintenance. This seminar is a MUST for anyone who is involved in the selection, applications, or maintenance of generators. It provides the latest in technology. The seminar covers how this equipment operates and provides guidelines and rules that must be followed for a successful operation. Their basic design, operating characteristics, specification, selection criteria, advanced fault detection techniques, critical components, refurbishment, as well as all maintenance issues are covered in detail. 

The PDDP Distance Education program works as follows:

  • Once you register for this course, you will be sent a login username and password for our online distance website.

  • You will receive the course notes in hard copy through the online website, you will receive a set of notes each week covering the course material.

  • A one hour video-conference session will be conducted by your instructor each week (if required). The objective of this session is to assist in solving the assignments, as well as answer student questions that should be sent to instructor early enough prior to the meeting time. In addition with being able to communicate with the instructor, you will also be able to communicate with other students in the same class and watch their questions being answered as well. (A high speed internet connection is strongly recommended for this feature).

  • Each set of exercises can be completed and submitted by the indicated date and your completed exercise will be marked online and and returned by your instructor.

  • To gain the most from your course, it is highly recommended that you participate fully in all discussions and exercises. Please remember that each course has a form of quiz or exercise at the end to test your understanding of the material. You will be informed of these dates when you receive the course schedule.

*Course commencement date is subject to instructor availability.

Philip Kiameh

Philip Kiameh, M.A.Sc., B.Eng., D.Eng., P.Eng. (Canada) has been a teacher at University of Toronto and Dalhousie University, Canada for more than 24 years. In addition, Prof Kiameh has taught courses and seminars to more than four thousand working engineers and professionals around the world, specifically Europe and North America. Prof Kiameh has been consistently ranked as "Excellent" or "Very Good" by the delegates who attended his seminars and lectures.
Prof Kiameh wrote 5 books for working engineers from which three have been published by McGraw-Hill, New York. Below is a list of the books authored by Prof Kiameh:
  1. Power Generation Handbook: Gas Turbines, Steam Power Plants, Co-generation, and Combined Cycles, second edition, (800 pages), McGraw-Hill, New York, October 2011.
  2. Electrical Equipment Handbook (600 pages), McGraw-Hill, New York, March 2003.
  3. Power Plant Equipment Operation and Maintenance Guide (800 pages), McGraw-Hill, New York, January 2012.
  4. Industrial Instrumentation and Modern Control Systems (400 pages), Custom Publishing, University of Toronto, University of Toronto Custom Publishing (1999).
  5. Industrial Equipment (600 pages), Custom Publishing, University of Toronto, University of Toronto, University of Toronto Custom Publishing (1999).
Prof. Kiameh has received the following awards:
  1. The first "Excellence in Teaching" award offered by the Professional Development Center at University of Toronto (May, 1996).
  2. The "Excellence in Teaching Award" in April 2007 offered by TUV Akademie (TUV Akademie is one of the largest Professional Development centre in world, it is based in Germany and the United Arab Emirates, and provides engineering training to engineers and managers across Europe and the Middle East).
  3. Awarded graduation “With Distinction” from Dalhousie University when completed Bachelor of Engineering degree (1983).
  4. Entrance Scholarship to University of Ottawa (1984).
  5. Natural Science and Engineering Research Counsel (NSERC) scholarship towards graduate studies – Master of Applied Science in Engineering (1984 – 1985).
Prof. Kiameh performed research on power generation equipment with Atomic Energy of Canada Limited at their Chalk River and Whiteshell Nuclear Research Laboratories. He also has more than 30 years of practical engineering experience with Ontario Power Generation (formerly, Ontario Hydro - the largest electric utility in North America).
While working at Ontario Hydro, Prof. Kiameh acted as a Training Manager, Engineering Supervisor, System Responsible Engineer and Design Engineer. During the period of time that Prof Kiameh worked as a Field Engineer and Design Engineer, he was responsible for the operation, maintenance, diagnostics, and testing of gas turbines, steam turbines, generators, motors, transformers, inverters, valves, pumps, compressors, instrumentation and control systems. Further, his responsibilities included designing, engineering, diagnosing equipment problems and recommending solutions to repair deficiencies and improve system performance, supervising engineers, setting up preventive maintenance programs, writing Operating and Design Manuals, and commissioning new equipment.
Later, Prof Kiameh worked as the manager of a section dedicated to providing training for the staff at the power stations. The training provided by Prof Kiameh covered in detail the various equipment and systems used in power stations.
Professor Philip Kiameh was awarded his Bachelor of Engineering Degree "with distinction" from Dalhousie University, Halifax, Nova Scotia, Canada. He also received a Master of Applied Science in Engineering (M.A.Sc.) from the University of Ottawa, Canada. He is also a member of the Association of Professional Engineers in the province of Ontario, Canada.

Faculty: Philip Kiameh, University of Toronto/Ontario Power Generation

Fundamentals of Electric Systems

1.0 Capacitors
2.0 Current and Resistance
3.0 The Magnetic Field
3.1 Ampère’s Law
3.2 Magnetic Field in a Solenoid
4.0 Faraday’s Law of Induction
5.0 Lenz’s Law
6.0 Inductance
7.0 Alternating Currents
8.0 Three-Phase System
8.1 Three-Phase Connections
8.2 Power in Three-Phase Systems

Introduction to Machinery Principles

1.0 Electric Machines and Transformers
2.0 Common Terms and Principles
3.0 The Magnetic FieldIntroduction to Machinery Principles
3.1 Production of a Magnetic Field
4.0 Magnetic Behavior of Ferromagnetic Materials
4.1 Energy Losses in a Ferromagnetic Core
5.0 Faraday’s Law –Induced Voltage From a Magnetic Field Changing with Time
6.0 Core Loss Values
7.0 Permanent Magnets
8.0 Production of Induced Force on a Wire
9.0 Induced Voltage on a Conductor Moving in a Magnetic Field

AC Machine Fundamentals

1.0 The Rotating Magnetic Field
1.0 Proof of The Rotating Magnetic Field Flux Concept
1.1 The Relationship between Electrical Frequency and The Speed of Magnetic Field Rotation
1.2 Reversing The Direction of the Magnetic Field Rotation
2.0 The Induced Voltage in AC Machines
2.0 The Induced Voltage in a Coil on a Two-Pole Stator
2.1 The Induced Voltage in a Three-Phase Set of Coils
2.3 The RMS Voltage in a Three-Phase Stator
3.0 The Induced Torque in a Three-Phase Machine
4.0 Winding Insulation in AC Machines
5.0 AC Machine Power Flow and Losses

Synchronous Machines

1.0 Physical Description 2.0 Pole Pitch: Electrical Degrees
3.0 Airgap and Magnetic Circuit of a Synchronous Machine
4.0 Synchronous Machine Windings
5.0 Field Excitation
5.1 Rotating Rectifier Excitation
5.2 Series Excitation
6.0 No-Load and Short-Circuit Values
7.0 Torque Tests
7.1 Speed-Torque Characteristic
7.2 Pull-In Torque
7.3 Pull-Out Torque
8.0 Excitation of a Synchronous Machine
9.0 Machine Losses
9.1 Windage and Friction Loss
9.2 Core Losses
9.3 Stray-Load Loss
9.4 Armature Conductor Loss
9.5 Excitation Loss

Synchronous Generators

1.0 Synchronous Generator Construction
2.0 The Speed of Rotation of A Synchronous Generator
1.0 The Internal Generated Voltage of a Synchronous Generator
2.0 The Equivalent Circuit of a Synchronous Generator
3.0 The Phasor Diagram of a Synchronous Generator
4.0 Power and Torque in Synchronous Generators
5.0 The Synchronous Generator Operating Alone
5.1 The Effect of Load Change on a Synchronous Generator Operating Alone
6.0 Parallel Operation of AC Generators
6.1 The Conditions Required for Paralleling
6.2 The General Procedure for Paralleling Generators
6.3 Frequency-Power and Voltage-Reactive Power Characteristics of a Synchronous Generator
7.0 Operation of Generators in Parallel With Large Power Systems
8.0 Synchronous Generator Ratings
8.1 The Voltage, Speed, and Frequency Ratings
8.2 Apparent Power and Power-Factor Ratings
9.0 Synchronous Generator Capability Curves
10.0 Short-Time Operation and Service Factor

Generator Components, Auxiliaries and Excitation

Generator Components, Auxiliaries and Excitation

1.0 Introduction
2.0 The Rotor
2.1 Rotor Winding
2.2 Rotor End Rings
2.3 Wedges and Dampers
2.4 Sliprings, Brushgear and Shaft Grounding
2.5 Fans
2.6 Rotor and Threading Alignment
2.7 Vibration
2.8 Bearings and Seals
2.9 Size and Weight
3.0 Turbine-Generator Components: The Stator
3.1 Stator Core
3.2 Core Frame
3.3 Stator Winding
3.4 End Winding Support
3.5 Electrical Connections and Terminals
3.6 Stator Winding Cooling Components
3.7 Hydrogen Cooling Components
3.8 Stator Casing
4.0 Cooling Systems
4.1 Hydrogen Cooling
4.2 Hydrogen Cooling Systems
5.0 Shaft Seals and Seal Oil Systems
5.1 Thrust Type Seal
5.2 Journal Type Seal
5.3 Seal Oil System
6.0 Stator Winding Water Cooling Systems
7.0 Other Cooling Systems
8.0 Excitation
8.1 AC Excitation Systems
8.2 Exciter Transient Performance
8.3 The Pilot Exciter
8.4 The Main Exciter
8.5 Exciter Performance Testing
8.6 Pilot Exciter Protection
8.7 Brushless Excitation Systems
8.8 The Rotating Armature Main Exciter
9.0 The Voltage Regulator
9.1 Background
9.2 System Description
9.3 The Regulator
9.4 Auto Follow-up Circuit
9.5 Manual Follow-up
9.6 AVR Protection
9.7 The Digital AVR
9.8 Excitation Control
9.9 Rotor Current Limiter
9.10 Overfluxing Limit
10.0 The Power System Stabilizer
11.0 Characteristics of Generator Exciter Power Systems (GEP)
11.1 Excitation System Analysis
12.0 Generator Operation
12.1 Running-up to Speed
12.2 Open Circuit Conditions and Synchronizing
12.3 The Application of a Load
12.4 Capability Chart
12.5 Neutral Grounding
12.6 Rotor Torque

Generator Performance Parameters, Excitation Systems, Voltage Regulators, and Protective Systems

1.0 Generator Performance Parameters
1.1 Industry Standard
1.2 Ratings
1.3 Power Factor
1.4 Voltage
1.5 Short-Circuit Ratio
1.6 Efficiency
1.7 Parametric Effects
1.8 Instrument Transformers.
2.0 Excitation Systems
2.1 Exciter Types
3.0 Voltage Regulators
3.1 Manual Control
3.2 Automatic Control
3.3 Auxiliary Control Functions
3.4 Excitation System Stabilizer or Transient Gain Reduction
3.5 Underexcitation Limiter
3.6 Overexcitation Limiter and Protection
3.7 Volts-Per-Hertz Limiter and Protection
3.8 Off-Line Excitation Limiter and Protection
3.9 VAR and Power Factor Controllers
3.10 Excitation Performance Parameters.
4.0 Generator Protection
4.1 Protective Relays
4.2 Differential Current Protection
4.3 Stator Overcurrent Protection
4.4 Negative Sequence Current Protection
4.5 Stator Ground Fault Protection
4.6 Field Ground Protection
4.7 Loss of Excitation Protection
4.8 Motoring protection.

Double-Feed Generators

1.0 Introduction
2.0 Basic System Configuration
3.0 Equivalent Circuit for the Brushless Double-fed Machine
4.0 Parameter Extraction
5.0 Generator Operation
6.0 Converter Rating
7.0 Machine Control
8.0 Conclusions

Generator Main Connections

1.0 Introduction
2.0 Isolated Phase Bus Bar Circulatory Currents
3.0 System Description

Performance and Operation of Generators

1.0 Generator Systems 1.1 Excitation
1.2 Hydrogen Cooling
1.3 Cooling of The Stator Conductors
1.4 Hydrogen Seals
2.0 Condition Monitoring
2.2 Temperature Monitoring –Thermocouples
2.4 Hydrogen Gas Analysis
2.5 Hydrogen Dew Point Monitoring and Control
2.6 Vibration Monitoring
3.0 Operational Limitations
3.1 Temperatures
3.2 Hydrogen leakage
4.0 Fault Conditions
4.1 Stator Ground (Earth) Faults
4.2 Stator Phase-to-Phase Faults
4.3 Stator Interturn Faults
4.4 Negative Phase Sequence Currents
4.5 Loss of Generator Excitation
4.6 Pole Slipping
4.7 Rotor Faults

Generator Surveillance and Testing

1.0 Generator Operational Checks (Surveillance and Monitoring)
1.1 Major Overhaul (every 8-10 years)
2.0 Generator Diagnostic Testing
2.1 Introduction
2.2 Stator Insulation Tests
2.3 DC Tests For Stator and Rotor Windings Index
3.0 Insulation Resistance and Polarization Index
3.1 Test Setup and Performance
3.2 Interpretation
4.0 DC Hipot Test
4.1 High Voltage and Step Ramp Tests
5.0 AC Tests for Stator Windings
5.1 Dissipation Factor and Tip-Up Tests
5.1.1 Tip-Up Test
5.1.2 Stator Turn Insulation Surge Test
6.0 Synchronous Machine Rotor Windings
6.1 Open Circuit Test For Shorted Turns
6.2 Air Gap Search Coil For Detecting Turns
6.3 Impedance Test With Rotor Installed
6.4 Detecting the Location of Shorted Turns With Rotor Removed
6.4.1 Low Voltage AC Test
6.4.2 Low Voltage DC Test (Voltage-Drop Test)
6.4.3 Field Winding Ground Fault Detectors
6.4.4 Surge Testing For Rotor Shorted Turns and Ground
7.0 Partial Discharge Tests
5.0 Off-Line Conventional pd Test
5.0.1 Test Setup and Performance
5.0.2 Interpretation
5.1 On-Line Conventional pd Test
8.0 Low Core Flux Test (EL-CID)
9.0 Mechanical Tests
9.1 Introduction
9.2 Stator Windings Tightness Check
9.3 Stator Winding Side Clearance Check
9.4 Core Laminations Tightness Check (knife test)
9.5 Visual Techniques
10.0 Groundwall Insulation
11.0 Rotor Winding
12.0 Turn Insulation
13.0 Slow Wedges and Bracing
14.0 Stator and Rotor Cores

Generator Inspection and Maintenance

1.0 On-Load Maintenance and Monitoring
1.1 Stator
1.2 Rotor
1.3 Excitation System
2.0 Off-Load Maintenance
2.1 Stator Internal Work
2.2 Stator External Work
2.3 Rotor
2.4 Slip Rigs and Brush Gear
2.5 Exciter and Pilot Exciter
2.6 Rectifier
2.7 Field Switch
2.8 Automatic Voltage Regulator
2.9 Supervisory and Protection Equipment
3.0 Generator Testing
3.1 Insulation Testing
3.2 Testing the stator core
3.3 Stator Coolant Circuit Testing
3.4 Hydrogen Loss Test
3.5 Rotor Winding Tests

Generator Operational Problems, and Refurbishment Options

1.0 Typical Generator Operational Problems
1.1 Shorted Turns and Field Grounds
1.2 Thermal Sensitivity
1.3 Contamination
1.4 Collector, Bore Copper and Connection Problems
1.4.1 Copper Distortion
1.5 Forging Concerns
1.6 Retaining Rings
1.7 Misoperation
2.0 Generator Rotor Reliability and Life Expectancy
2.1 Generator Experience
3.0 Generator Rotor Refurbishment
3.1 Generator Rotor Rewind
4.0 Types of Insulation
5.0 Generator Rotor Modifications, Upgrades and Uprates
6.0 High Speed Balancing
7.0 Flux Probe Test

Bearings And Lubrication

1.0 Types of Bearings
1.1 Ball and Roller Bearings
1.2 Stresses During Rolling Contact
2.0 Statistical Nature of Bearing Life
3.0 Materials and Finish
4.0 Sizes of Bearings
5.0 Types of Roller Bearings
6.0 Thrust Bearings
7.0 Lubrication
7.1 The Viscosity of Lubricants
7.1.1 Viscosity Units
7.1.2 Significance of Viscosity
7.1.3 Flow Through Pipes
7.1.4 Variation of Viscosity With Temperature and Pressure Temperature Effect Viscosity Index Effects of Pressure on Viscosity
7.2 Non-Newtonian Fluids
7.2.1 Greases
7.3 VI Improved Oils
7.4 Oils at Low Temperatures
7.5 Variation of Lubricant Viscosity With Use
7.5.1 Oxidation Reactions
7.5.2 Physical Reactions
7.6 Housing and Lubrication
7.6.1 Lubrication and Antifriction Bearings

Used Oil Analysis

1.0 Proper Lube Oil Sampling Technique
2.0 Test Description and Significance
2.1 Visual and Sensory Inspection
2.2 Chemical and Physical Tests
2.2.1 Water Content
2.2.2 Viscosity
2.2.3 Emission Spectrographic Analysis
2.2.4 Infrared Analysis
2.2.5 Total Base Number
2.2.6 Total Acid Number
2.2.7 Particle Count
2.3 Summary

Vibration Analysis

1.0 The Application of Sine Waves to Vibration
2.0 Multimass Systems
3.0 Resonance
4.0 Logarithms and Decibels (db)
5.0 The Use of Filtering
6.0 Vibration Instrumentation
6.1 Displacement Transducer (proximity probe)
6.2 Velocity Transducer
6.3 Acceleration Transducer
6.4 Transducer Selection
7.0 Time Domain
8.0 Frequency Domain
9.0 Machinery Example
10.0 Vibration Analysis
10.1 Vibration Causes
10.2 Forcing Frequency Causes
10.3 Unbalance
10.4 Misalignment
10.5 Mechanical Looseness
10.6 Bearing Defects
10.7 Gear Defects
10.8 Oil Whirl
10.9 Blade or Vane Problems
10.10 Electric Motor Defects
10.11 Uneven Loading
10.12 Drive-Shaft Torsion
11.0 Resonant Frequency
12.0 Vibration Severity

Power Station Electrical Systems and Design Requirements

1.0 Introduction
2.0 System Requirements
2.1 Grid Criteria
2.2 Safety Requirements
3.0 Electrical System Description
3.1 The Generator Main Output System
3.2 Electrical Auxiliary Systems
3.3 Type of Stations
4.0 System Performance
4.1 Unit Start-up
4.2 Plant Requirements
4.3 Synchronizing to the Grid
4.4 Synchronizing the Unit to the Station
4.5 Shutdown and Power Trip
4.6 Controlled Shutdown
4.7 Power Trip
4.8 The Effects of Loss of Grid Supplies
5.0 Power Plant Outages and Faults
6.0 Uninterruptible Power Supply (UPS) Systems
6.1 Introduction
7.0 DC Systems
7.1 Introduction
7.2 DC System Functions
7.3 Mission Time of DC Systems

Power Station Protective Systems

1.0 Introduction
2.0 Design Criteria
3.0 Generator Protection
3.1 Stator Ground (Earth) Faults –Low Impedance Grounding
3.2 Stator Ground Faults –High Resistance Grounding
3.3 Stator Phase-to-Phase Faults
4.0 DC Tripping Systems
4.1 Logic Diagram

Frequently Asked Questions

2.0 Introduction to Machinery Principles
3.0 Interconnection With the Grid
4.0 AC Machine Fundamentals
5.0 Synchronous Generators
6.0 Generator Components, Auxiliaries, and Excitation

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Course Materials

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