Electrical Transformers and Rotating Machines
4th Edition
ISBN: 9781305494817
Author: Stephen L. Herman
Publisher: Cengage Learning
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Concept explainers
Question
Chapter 20, Problem 1RQ
To determine
The indication shown by TENV on the nameplate of the motor.
Expert Solution & Answer
Explanation of Solution
The National Electrical Manufacturers Association defines some basic parameters regarding the design and dimensions in order to define the basic performance and mounting parameters.
These parameters are coded on the motor nameplate in order to define the key features of the motor. The information which is inscribed on the motor nameplate is arranged by categories.
TEMV stands for totally enclosed non ventilated type motor which indicates that the motor is sealed in such a way that it is totally safe from dirt and humidity although hot environment is not favorable for these kind of motors.
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Chapter 20 Solutions
Electrical Transformers and Rotating Machines
Ch. 20 - Prob. 1RQCh. 20 - Prob. 2RQCh. 20 - Prob. 3RQCh. 20 - A motor nameplate indicates an insulation...Ch. 20 - What is the most common NEMA design code found on...Ch. 20 - A motor develops 225 ft-lb of torque at 860 RPM....Ch. 20 - The nameplate of a motor lists the frame as 256T....Ch. 20 - A motor develops 189 ft-lb of torque at 1745 RPM....Ch. 20 - Prob. 9RQCh. 20 - A motor nameplate lists the voltage as...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A motor nameplate indicates an insulation temperature rating of F. What is the temperature rating of this insulation?arrow_forwardWhat does the code letter on a motor nameplate indicate about the motor?arrow_forwardThe nameplate of a motor lists the frame as 256T. What is the distance from the base of the motor to the center of the shaft?arrow_forward
- A motor nameplate lists the voltage as 208–230/460. The nameplate also lists the full-load amps as 34.2–31.6/15.8. If the motor is operated at 240 volts, what should be the full-load current?arrow_forwardWhen a repulsion-start induction-run motor reaches about 75% of rated full-load speed, it stops operating as a repulsion motor and starts operating as a squirrel-cage motor. What must be done to cause the motor to begin operating as a squirrel-cage motor?arrow_forward
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