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This guide has been updated to provide more information and better flow of concepts. New material and artwork have been added to better reflect the current workplace. At the same time, the text has retained the features and style of previous editions that have made it so popular.
The text introduces the concepts of AC and DC motors, and the associated controls and maintenance of this equipment. The material is broken down into short segments that concentrate on specific concepts or application of particular types of equipment. The detailed explanations are written in easy-to-understand language that concisely presents the required knowledge. Many illustrations and photographs help provide technical understanding and provide real-world references. This type of explanation and application better prepares the student to perform effectively on the job in installing, troubleshooting, repairing, and servicing electrical motors and controls.
The knowledge obtained in this guide permits the student to progress further in the study of electrical systems. The study of electricity and the application of electrical products are continually changing. The electrical industry constantly introduces new and improved devices and material, which in turn lead to changes in installing and operating equipment. Electrical codes also change to reflect the industry needs. It is essential that students continue to learn and update their knowledge of current procedures and practices.
The text is easy to read and the sections have been grouped by general topics. Summaries of each section provide an opportunity to restate the most important topics of the section. Summary Reviews of the sections reemphasize topic groups.
Each section begins with learning objectives. A QUIZ at the end of each section provides an opportunity for readers to check their understanding of the material in small increments before proceeding. Some of the problems in the text require the use of simple algebra, and the student should be familiar with the math before trying to solve the equations. It is also essential that the reader have a basic understanding of the fundamentals of electrical circuits and electrical concepts.
It is recommended that the most recent edition of the National Electrical Code (published by the National Fire Protection Association) be available for reference and use as the learner applies this text. Applicable state and local codes and regulations should also be consulted when making the actual installations.
Features of the this revised guide include:
• updated coverage on DC motor starting.
• expanded coverage of Servo motors.
• updated information on electronic controls.
• an update to the 2011 NEC.