OP202 - Electrical Systems for Operators

3 days - 1.9 Continuing Education Units Awarded

As an operator you know your job extremely well through training and experience. You know exactly what buttons to push, knobs to turn, and indicators to view to parallel the generator to the grid. In performing these tasks, is there a comprehension of why these tasks have to be done in a certain way and sequence? Is there a big picture of how all the components that make up the electrical side of the power plant are linked together such that power is generated and sent to the grid?

Once the generator is on line, what are the factors affecting the power output of the generator? Are these factors strictly mirroring the characteristics of the load? How are these factors being addressed either manually or automatically?

What electrical sensors are used in a variety of ways through instrumentation to monitor and protect the operation of the electrical equipment?

Do you know how to read an electrical schematic? What do the symbols on the schematic mean? Is there a way to understand the predictability of an electrical circuit?

These questions along with many more will be answered upon attending the Electrical Systems For Operators Seminar.

Seminar OBJECTIVES
Upon completion of this Seminar, the participant should be able to:

1. Describe, in basic terms, the types of power plants, the prime movers used to drive their generators, and the transmission lines used to distribute the power generated
2. Given a block diagram, trace the flow of electrical generation from the original energy source to the end user, the consumer
3. Explain Ohm's Law and the behavior of voltage, current, and resistance in series, parallel, and series-parallel DC circuits
4. Define inductance and capacitance to include how they contribute to the impedance of an AC circuit
5. Describe components making up the power triangle
6. Identify and explain the purpose of the symbols and standard device function numbers on an electrical schematic
7. Demonstrate the ability to trace current through the various components on an electrical wiring diagram
8. Describe the various types of ducts, busses, and their arrangement
9. Describe how to operate several types of disconnects
10. Explain the purposes, construction, and operation of current and potential transformers
11. Describe, in basic terms, circuit breaker construction and operation
12. Explain the various types of fuses and their application
13. State the purpose of protective relays and where they are used
14. Describe battery construction, battery capacity and operations
15. Describe the operation of AC and DC motors
16. Demonstrate basic knowledge of AC generator theory
17. List and describe the major components making up a large generator.
18. Explain the purposes of an excitation system in maintaining system voltage

Seminar OUTLINE

1. Introduction
   1. Types Of Plants
   2. Prime Movers
   3. Energy Converters
   4. Typical Generating Plant
   5. Energy Sources
   6. Power Generation
   7. Transmission Stations
   8. Distribution Station
   9. Distribution Panels
   10. Operations And Process Control
2. Fundamentals of Electricity
   1. Electron Flow
   2. Ohm's Law
   3. Series Circuits
   4. Parallel Circuits
   5. Series/Parallel Circuits
   6. Magnetism
   7. Alternating Current
   8. Power
3. Reading Electrical Diagrams
   1. Single Line Diagrams
   2. Introduction to Schematics
   3. Using Schematics
   4. Schematic and Wiring Diagrams
4. Plant Electrical Equipment
   1. Buses and Bus Ducts
   2. Transformers
   3. Circuit Breakers and Switchgear
   4. Instrument Transformers
   5. Fuses
   6. Protective Relays
   7. Control Power
   8. Storage Batteries
5. Motors
   1. Definitions and Purposes
   2. Principles and Operation - DC Motors
   3. Principles and Operation - AC Motors
   4. Synchronous Motors
   5. Induction Motors
   6. AC Commutator Motors
   7. Motor Frame Designations
   8. Motor Bearings
   9. Motor Nameplate Data
   10. DC Motor Operation, Maintenance and Applications
   11. Motor Controls
6. Generation
   1. Definition and Purpose of AC Generators
   2. Principles of Simple Generators
   3. Principles of Large Generators
   4. Generator Cooling
   5. Generator Regulation
   6. Operation of Generators in Parallel
   7. Stability and Unbalanced Loads
   8. Maintaining Stability
   9. Unbalanced Phase Currents
7. Excitation
   1. The Need for Excitation
   2. System Components
   3. DC Generator as an Exciter
   4. Shunt Exciter
   5. Compound Exciter
   6. Differential Compound Exciter
   7. Cooling of DC Exciter Generators
   8. Rectifiers in Exciter Systems
   9. Reserve Exciters