Understand all types of motors with the 2005 All About Motors
A practical blend of theory, diagrams, graphs, drawings, and photos combine in this book to assist readers in developing a complete understanding of all types of electric motors, generators, and alternators. All About Motors comprehensively examines such concepts as magnetic and inductive theory, characteristics of various types of motors, and the speed control of AC and DC motors that provide the necessary background for a thorough understanding of rotating equipment. Basic concepts of rotation are skillfully applied to the complex theories of rotor phase angles and their effect on torque so technicians learn effective service and troubleshooting techniques as well as motor operations. The knowledge gained will give students a foundation to develop into journeymen who can be counted on to successfully handle all aspects of the electrical industry.
Features:
- Contributions to this book are a culmination of both field experiences and
academic achievements, with over 140 years of accumulated experience in all
aspects of the electrical industry
- A careful ordering of topics moves readers through the basics and provides
a framework for the mastery of more complex concepts
- Allows readers to access information in-depth, not just in general terms
as in many publications
- Testing and troubleshooting procedures are explained with an eye to
execution within the strictest of industry safety precautions
- The clear presentation of material is suitable for novices and experienced
electricians alike
All About Motors - Table of Contents:
- Rules, Glossary, and Formulas:
- Electrical Rules
- Glossary of Electrical Terms
- Formulas
- Magnetism, Electromagnetism, and Induction (Basic, Self-, and
Mutual):
- Magnetism
- Electromagnetism
- Induction
- AC Alternators:
- Introduction
- Construction of the Stator
- Construction of the Rotor
- Types of Alternators
- Theory of Operation
- Determining Alternator Frequencies
- Rating Alternators
- Output Voltage of Alternators
- Resistance, Reactance, and Reaction of Alternators
- Paralleling Alternators
- Load Sharing
- Shutting Down One Unit
- The Rotating Field in the Polyphase Motor:
- Origin of the Rotating Field
- Effect of Alternator Poles on Motor Speed
- Frequency and its Effects on Rotation
- Rotation in a Two-Pole Delta
- Rotation in a Two-Pole Wye
- Polyphase Motors:
- Reading the Nameplate of the Polyphase Motor
- Construction of the Stator
- Construction of the Rotor
- Stator Windings in a Wye Connection
- Stator Windings in a Delta Connection
- Foreign Motors: Delta-Low and Wye-High Connections
- U.S. Motors on 50 Hz
- Polyphase ACA or Shunt-Commutator Motors
- Classification of Motors According to Rotor Design
- Efficiency of Polyphase Motors
- Power Factor in Polyphase Motors
- Motor Losses
- Operating Characteristics of Polyphase Motors
- Consequent-Pole Polyphase Motors
- Multispeed Polyphase Motors
- Nema Standards
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- Wound-Rotor Motors
- Construction of the Stator
- Speed of the Wound-Rotor Motor (Stator)
- Applications
- Construction of the Rotor
- Operating Characteristics
- Locked-Rotor Stator Currents
- Monitoring Rotor Currents
- rque of the WRM
- Speed Control of the WRM
- Efficiency of the WRM
- Starters of the WRM with Pneumatic-Timing Acceleration Control
- Starters of the WRM with Compensated Acceleration Control
- Regulators of the WRM
- Synchronous Motors:
- Construction of the Stator
- Construction of the Rotor
- Reduced Voltage Starting (Stator)
- Applications
- Starting the Synchronous Motor
- The Polarized-Frequency Relay
- The Out-Of-Step Relay
- The Exciter Generator
- The AC Ammeter
- The DC Ammeter
- Operating Characteristics
- Power-Factor Correction Using a Synchronous Motor
- The Brushless Synchronous Motor
- The Alternating Field in a Single-Phase Motor:
- Alternating Field in a Single-Phase Motor
- Phase Shift in a Single-Phase Motor
- Placement of Phase Shift (Start Winding) in the Stator
- Operating Characteristics
- Adding Capacitance: Its Effect on Phase Shift
- Reversing Phase Shift in a Single-Phase Motor
- Rotation of Fields in a Single-Phase Motor
- Single-Phase Motors:
- Construction of the Stator
- Construction of the Rotor
- Split-Phase Motors
- Multispeed ...
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