Electrical Systems > Industrial Electricity Vol 1

Industrial Electricity Vol 1

Course Number: 8173

The two volumes of this textbook can be used independently or in conjunction with each other. They orient students to not only the principles of electricity and single-phase and three-phase motors but also on maintaining and troubleshooting controls and motors. The Industrial Electricity Vol. 1 textbook includes an overview of the principles of electricity and circuit analysis, and the installation and maintenance of single-phase motors.

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Recommended Contact Hours – 23

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Table of Contents

Chapter 1: Current Resistance and Voltage

Topics: Electric current, resistance, and potential difference; Ohm's Law; Resistance and voltage drop; Electrical measurement

Learning Objectives:

  • State the characteristics of an electrical conductor and an electrical insulator.
  • State the definition of electric current.
  • Explain the relationship of potential difference to the flow of electric current.
  • State the definition of Ohm's Law.
  • Identify the purpose and parts of an ammeter.

Chapter 2: Electrical Components

Topics: Resistors; Color code and power rating; Capacitors; Connecting capacitors; Induction; Inductors; Solenoids and relays

Learning Objectives:

  • Identify symbols for resistors, capacitors, and relays in an electric circuit diagram.
  • Explain the operating principles of resistors, capacitors, and inductors.
  • State the meaning of each band in the resistor color-code system.
  • List the factors to consider when choosing a resistor.
  • Explain how to connect capacitors in parallel and in series.

Chapter 3: Conductors

Topics: Sizes and classifications; Insulation; Protecting conductors; Flexible conduit; Conduit fill; Splicing conductors

Learning Objectives:

  • Explain the difference between a conductor and an insulator.
  • Identify a bare conductor, a covered conductor, an insulated conductor, a stranded conductor, a cable, and a cord.
  • State the definitions of insulation resistance and dielectric strength.
  • Select the best tapes for insulating splices, restoring the outer protecting covering on a splice, and connecting motor leads.
  • Explain how to make a pigtail splice and a fixture splice.
  • State the purposes of cable protection.

Chapter 4: AC Electricity

Topics: Advantages of AC; Generating alternating current; Resistance, inductance, capacitance, current, and power in AC circuits

Learning Objectives:

  • Explain the importance of the transformer in ac electricity.
  • Explain what a complete cycle of ac consists of and how it is produced.
  • State the definition of ac inductance.
  • List the ways inductive reactance differs from resistance.
  • Explain the difference between the terms in-phase and out-of-phase in an ac circuit.

Chapter 5: Series-Parallel Circuits

Topics: DC motors and generators; Voltage dividers; Lighting circuits; Three- and four-way switch circuits

Learning Objectives:

  • State the definition of a series-parallel circuit.
  • Identify series, parallel, and series-parallel circuits.
  • Explain how to calculate resistances in a series-parallel circuit.
  • Demonstrate how to trace and simplify a circuit.

Chapter 6: Principles of AC Circuits

Topics: AC and DC electricity; AC waveform; Peak-to-peak, average, effective values; Energy storage; Faraday's Law; Basic circuit concepts

Learning Objectives:

  • State of definition of a waveform.
  • Demonstrate how to calculate the frequency of an alternator's output.
  • Explain how to calculate an effective value.
  • Name the kinds of values that must be used when applying the dc rules and laws to ac circuits.

Chapter 7: Mathematics in AC Circuits

Topics: Potential difference; Angles and degrees; Vectors applied to AC circuits; Graphic and math solutions; Calculating instantaneous values

Learning Objectives:

  • Describe a triangle.
  • State the definition of a vector.
  • Identify the vector representing resistance in a vector diagram.
  • Demonstrate how to calculate the total impedance in an ac circuit.

Chapter 8: Inductance and Inductive Reactance

Topics: Factors affecting inductance; CEMF; Inductive reactance and time delay; Phase angles; Impedance; Mutual induction; Inductors

Learning Objectives:

  • Name the property of a coil that makes it resist changes in current.
  • List the factors that determine inductance in a coil.
  • State the definition of counter electromotive force.
  • Demonstrate how to convert a frequency in Hz to a frequency in radians per second.

Chapter 9: Capacitance and Capacitive Reactance

Topics: How a capacitor works; Factors controlling capacitance; Kinds of capacitors; Time constants; Capacitive reactance; Phase angle

Learning Objectives:

  • Name the parts of a capacitor.
  • List the factors that affect the amount of charge stored in a capacitor at a given potential difference.
  • Demonstrate how to install a multisection electrolytic capacitor.
  • State the definition of capacitive reactance.

Chapter 10: Impedance

Topics: Impedance in series circuits; Phase angles; Resonance in series circuits; Impedance in parallel circuits

Learning Objectives:

  • State the definition of impedance.
  • Explain how to calculate the impedance in a series ac circuit.
  • Demonstrate how to find the value of a phase angle for a circuit.
  • Explain how to calculate the impedance in a parallel circuit.

Chapter 11: Principles of Single-Phase Motors

Topics: Motor parts; NEMA motor standards and enclosures; Nameplate data; Induction motors; Stator, rotor field; Split-phase starting; Synchronous speed; Starting switches

Learning Objectives:

  • List the parts of a rotor.
  • List the data given on a typical motor nameplate.
  • Explain how an induction motor works.
  • Demonstrate how to calculate the number of electrical degrees in one complete rotation of a motor.
  • Explain how a centrifugal switch works.

Chapter 12: Split-Phase Motors

Topics: Motor connections; Skein and consequent-pole windings; Two-speed, three-, four-winding, and dual-voltage motors; Troubleshooting

Learning Objectives:

  • State the reason why a second stator winding is important in the single-phase induction motor.
  • Explain how to identify motor leads when there are no tags or colors to identify them.
  • Describe a skein winding.
  • List the ways to change the speed of a motor by changing the number of poles.
  • Discuss some common motor problems.

Chapter 13: Capacitor Motors

Topics: Kinds and operation; Rotating magnetic fields; Single-voltage, dual-voltage, reversible, capacitor-start, and capacitor-run motors

Learning Objectives:

  • State the definition of a capacitor.
  • Explain how to make a split-phase motor operate as a capacitor-start motor.
  • Explain how the running windings are connected to make a dual-voltage motor run on either 120 or 240 volts.
  • Select the best capacitor to use as a substitute for a defective capacitor when an identical unit is not available.
  • List problems that cause the circuit breaker to trip when you turn on a capacitor motor.

Chapter 14: Motor Installation

Topics: Conductor size; Preventing shorts and grounds; Controllers; Overcurrent protection; Guards; Grounding; Fuses; Starters; Service factor

Learning Objectives:

  • Explain how to determine conductor size for motors.
  • State the definition of a controller.
  • List the conditions under which the frames of stationary motors must be grounded.
  • Demonstrate how to determine the size of a dual-element when two or more motors are connected to one feeder.
  • List the electrical and mechanical factors to consider in selecting a motor for a specific application.

Chapter 15: Motor Maintenance

Topics: Procedures; Testing capacitors and stator windings; Armature defects; Noisy operation; Bearing problems; High temperatures; Incorrect speed

Learning Objectives:

  • Demonstrate how to test bearings for wear.
  • Explain how to test capacitors.
  • State the reason why proper belt tension in important.
  • List the common causes of excessive brush sparking.

Add Chapters to Your Custom Book

Select Chapter(s):

  •    Chapter 1: Current Resistance and Voltage
  •    Chapter 2: Electrical Components
  •    Chapter 3: Conductors
  •    Chapter 4: AC Electricity
  •    Chapter 5: Series-Parallel Circuits
  •    Chapter 6: Principles of AC Circuits
  •    Chapter 7: Mathematics in AC Circuits
  •    Chapter 8: Inductance and Inductive Reactance
  •    Chapter 9: Capacitance and Capacitive Reactance
  •    Chapter 10: Impedance
  •    Chapter 11: Principles of Single-Phase Motors
  •    Chapter 12: Split-Phase Motors
  •    Chapter 13: Capacitor Motors
  •    Chapter 14: Motor Installation
  •    Chapter 15: Motor Maintenance

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