Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 9, Problem 7SQ
Connect these components in Figure 9–17:
- a. The start push button on the timer coil
- b. Load 1 to NOTC
- c. Load 2 to NCTO
- d. Show proper symbols
FIG 9–17
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Chapter 9 Solutions
Electric Motor Control
Ch. 9 - List several applications for a motor-driven...Ch. 9 - Which timer is the most commonly used in...Ch. 9 - How is a pneumatic timer adjusted?Ch. 9 - List six factors to be considered when selecting a...Ch. 9 - List several additional factors that will affect...Ch. 9 - Prob. 6SQCh. 9 - Connect these components in Figure 917: a. The...Ch. 9 - Connect the following components in Figure 918: a....
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- Select the best answer for each of the following. Thermal overload protection a. aids motor warm-up. b. prevents motors from freezing. c. protects motors and conductors from mechanical damage. d. provides overcurrent protection for motors.arrow_forwardThe fuse in one of the supply phases of a running 3-phase I.M. blows off. Will the motor continue to run at ( i) original speed (ii) reduced speed (iii) come to stand still?arrow_forwardCalculate the coil pitches and indicate the slots into which the first coil should be placed for the following armature windings: (a) 36 slots, four poles; (b) 76 slots, six poles; (c)270 slots, 10 poles. (Our lesson is DC GENERATORS in the subject ELECTRICAL MACHINE 1) PLEASE GAVE ME A CLEAN ANSWER AND SOLUTION. THANK YOUarrow_forward
- q. 7 Refer to the Load Balance Diagram. What is the Takt time? Group of answer choices a. 10 minutes b. 20 minutes c. 30 minutes d. Impossible to determine from this diagramarrow_forward25.a. There are two wires labeled P1 and P2 at a DC motor's junction box. These wires will attach to whatinternal component of the motor?A. A speed potentiometerB. The parallel windingC. GroundD. A thermostat25.b. As you walk up to a machine, you see a technician tapping on the back section of a DC motor with alead mallet. This technician isA. cleaning the commutator.B. checking for end bell cracks.C. looking for weak or worn brushes.D. reseating the rear end bell on the case.arrow_forward9. When you're taking a PM motor apart you should exercise special care not to damage theA. brush holders.B. commutator.C. permanent magnets.arrow_forward
- I want Correct Solution. Double check What is the peak time of the following systems?arrow_forwardI need a soluion Control Systemsarrow_forward10.a. A normal commutator will have which one of the following colors where the brushes contact thecommutator?A. Slate-grayB. Chocolate-brownC. Auburn-brownD. Black 10.b. If an electronic control system is starting a motor, it will keep start-up current within limits by usingA. an acceleration ramp.B. coast-up system.C. a rheostat and a relay.D. a pulsed diode control.arrow_forward
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