Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 31, Problem 3R
To determine
Choose the correct option among the given choices to find the automation system that requires separate wiring system
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multiple choice question.
One of the following is the example for process control system.
a.
Water level controller
b.
Radar position control system
c.
Speed control of motor
d.
Cement Production Industry
Explain the importance of power system stability in electrical engineering.
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- i need the answer quicklyarrow_forwardAn ECM is a _______. Select one: A. THREE-PHASE, AC MOTOR B. SINGLE-PHASE, DC MOTOR C. SINGLE-PHASE, AC MOTOR D. THREE-PHASE, DC MOTORarrow_forwardIf given that the switching device of the DC Power Regulator System is a thyristor, suggest a suitable commutation circuit for the system in order to gain controllability of commutating the thyristor. Compose and summarize the operation of the said commutation circuit?arrow_forward
- Which of the following statements regarding wind farm control systems are true? Select one or more: a. The control system takes care of the adjustments of only one wind turbine. b. The total control system of a wind power plant consists of several thousand measurements and controls. c. Dynamic component controllers are often supplier-specific. Od. Wind farm control systems aim to monitor and optimize operations.arrow_forward5. A single phase full wave ac voltage controller working on ON-OFF control technique has supply voltage of 230V r.m.s, at 50Hz, and a load R = 5002. The controller is ON for 30 cycles and off for 40 cycles. Calculate (a) ON & OFF time intervals. (b) the output R.M.S. voltage. (c) the power factor of the controller.arrow_forwardIndustrial Motor Controls 8.a. A typical motor speed control circuit that is controlled by an analog current loop will have a current ofA. 4-20 mA.B. 2-20 mA.C. 5-50 mA.D. 0-10 mA.8.b. Which one of the following statements is true of a disabled contact or coil?A. The disabled element has been automatically disabled due to module failure.B. The disabled element is held false by the PLC.C. A disabled contact or coil is caused by a faulty memory location in the PLC.D. A contact must be in the disabled state before it can be forced ON or OFF.arrow_forward
- What is the significance of power system stability in electrical engineering?arrow_forwardA proportional system of control system. How to disable OFF-SET ? Draw example for Process line diagram and Controller line ?arrow_forwardIndustrial Motor Controls 15.a. A discrete input can be which of the following?A. −10–+10 VDCB. On or OffC. 4–20 mAD. 0–10 VDC 15.b. The PLC power supply provides power to theA. relay interface.B. programming terminal.C. CPU and I/O system.D. field devices.arrow_forward
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