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AC Motor Redesign (English)

This product is only available to EASA Members
  • Category: Engineering Reference Materials
  • Format: Paperback
  • Number of pages: 130
  • Language: English
  • Size: 8.5" x 11"

EASA’s AC Motor Redesign manual explains how to make all possible changes in the ratings of AC electric motors, within design limitations. Besides mathematical formulas, it provides guidelines on the limitations for each type of redesign. These are useful in determining whether a desired new rating is possible before the motor is stripped. Terms are expressed in both English and metric units. Each chapter contains at least one example to guide you through your own redesigns. The publication also is available in Spanish.

This book is also available as a FREE download.

Chapters in this book include:
• Wire size change
• Voltage change
• Horsepower or kilowatt change
• Frequency change
• Phase change
• Circuit change
• Span or chord factor change
• Winding connection change
• The master formula
• Converting concentric windings to lap windings
• Converting lap windings to concentric windings
• Notes on pole changing
• Decreasing speed by increasing poles
• Increasing speed by decreasing poles
• Single-speed to two-speed, one winding
• Single-speed to two-speed, two winding
• Developing a winding for a bare core
• Strengthening or weakening a motor - short method
• Determining the proper connection
• Single-phase redesign
• Calculation of secondary voltage
• Determining three-phase coil grouping

Member: $49.00


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No refunds or exchanges after 90 days. No refunds on software products; exchanges only on such products determined by EASA to be defective. All items and prices are subject to change without prior notice.