Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 5, Problem 11SQ
To determine
Find the current drawn by the fully-loaded motor.
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All answers should be written in complete sentences. Calculations should be shown in detail, and Codereferences should be cited when appropriate. Unless otherwise stated, all conductors are copper type THHN, and the supply is AC.
1. What is the rated full-load current of a ¾-horsepower, 208-volt single-phase motor?
A 10 hp single phase motor is connected to 240 volts. The motor nameplate indicates a NEMA code B, a full load running current of 47.5 amperes and a temperature rise of 40 degrees C. What size copper conductors with THWN insulation should be used to connect this motor?
All answers should be written in complete sentences. Calculations should be shown in detail, and Codereferences should be cited when appropriate. Unless otherwise stated, all conductors are copper type THHN, and the supply is AC.
1. What is the full-load current of a 500-volt, DC, 20-horsepower motor?
Chapter 5 Solutions
Electric Motor Control
Ch. 5 - In which diagram do the physical locations of the...Ch. 5 - Which diagram conveys as much information as...Ch. 5 - Prob. 3SQCh. 5 - Which control wiring scheme can cause damage to...Ch. 5 - In developing line or wiring diagrams, in which...Ch. 5 - In which control circuit wire are the overload...Ch. 5 - The control circuit is connected to which lines...Ch. 5 - Prob. 8SQCh. 5 - The contactor coil is connected to which line of a...Ch. 5 - What does the X or 1 mean on a target table?
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- What is the maximum ampere setting permitted for running overload protection of the 1-horsepower, 240-volt pump motor? ____________________arrow_forwardA 3-phase, 15 HP, 230/460-volt motor has a nameplate FLA = 38/19. If operated at 230 volts, ___ amps of current would flow in each motor winding. Please answer in typing format please ASAP for the likearrow_forwardIf the nameplate of a dual-voltage motor connected to a part winding starter reads 15/30 amperes, which amperage value is used as the basis for the selection of the overload heating elements?arrow_forward
- What is the minimum conductor ampacity, overload protection, and dual element fuse rating for a circuit supplying a 560 volt, 3 phase, code J, 40 degree Celcius, 125 horse power motor with a nameplate full load current of 115 amperes?arrow_forwardWhat is the minimum conductor ampacity, overload protection, and dual-element fuse rating for a circuit supplying a 560-volt, 3-phase, code J, 40°C, 125-horsepower motor with a nameplate full-load current of 115 amperes?arrow_forwarda 10hp single-phase motor is connected to 240 volts. the motor nameplate indicates a NEMA Code B, a full-load running current of 47.5 amperes, and a temperature rise of 40⁰C. what size copper conductors with THWN insulation should be used to connect this motor?arrow_forward
- Providing a bulleted list of the procedures needed to turn on the equipment would be very helpful.arrow_forwardAll answers should be written in complete sentences. Calculations should be shown in detail, and Codereferences should be cited when appropriate. Unless otherwise stated, all conductors are copper type THHN, and the supply is AC. 1.What is the full-load current of a 600-volt, 3-phase, 50-horsepower induction motor?arrow_forwardIf pilot lights are to indicate which coil is energized, where should they be connected? Additional auxiliary contacts are not to be used.arrow_forward
- What is the net price of a 2-pole, 400-ampere, 230-volt enclosed entrance switch if it has a list price of $287 with successive discounts of 48% and 2%?arrow_forwardwhat wire size is needed for a one 20-amp, 240-volt water pumparrow_forwardDon't use chat gpt otherwise I will report What is the minimum conductor ampacity overload protection and dual element fuse rating for a circuit supplying a 560 volt , 3 phase, code J, 40 degree Celsius, 125 HP motor with a nameplate full load current of 125 amperes?arrow_forward
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