Design of Machinery
6th Edition
ISBN: 9781260431315
Author: Norton, Robert
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 2, Problem 2.20P
The torque-speed curve for a 1/8 hp permanent magnet (PM) DC motor is shown in Figure P2-3. The rated speed for this fractional horsepower motor is 2500 rpm at a rated voltage of 130 V. Determine:
- The rated torque in oz-in (ounce-inches—the U.S. industry standard for fractional hp motors)
- The no-load speed
- Plot the power-torque curve and find the maximum power that the motor can deliver.
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Chapter 2 Solutions
Design of Machinery
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