Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 50, Problem 5SQ
To determine
Explain the necessity of opening the disconnect switch in the Figure 50-2 when the machine is not in operation.
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Electric Motor Control
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The NEC is very specific in its requirement that submersible electric water pump motors be grounded. Where is this specific requirement found in the Code? _______________________________________________________________________ _______________________________________________________________________
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Using the time limit overload or the dashpot overload relay, how are the following achieved: time-delay characteristics; tripping current adjustments?
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2. In the motor control circuit of Figure 11 in your study unit, the operation of any one of the overload relays has which of the following effects?A. The motor only runs two phases.B. The motor operates normally. C. The auxiliary contact M closes. D. The motor stops
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Your Answers may be presented through Discussions, Drawings/Figures/Diagrams, Reference to NEC/PEC and Computations
What is the rated full-load current of a ¾-horsepower, 208-volt single-phase motor
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A 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 like
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Q.35
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1-Can a simple variable resistor be used instead of the fan speed regulator? And why?
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3 phase , delta connection , 2 pole , 1000 Volt , 50 Hz asynchronous motor 2920 RPM
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thank you :)
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