Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Question
Chapter 58, Problem 11SQ
To determine
Mention an electronic device which is connected between a load and line when control output device is rated at AC voltage of 120 volts.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
For what load an AC voltage controller can be regarded as a constant voltage source?
Hello.help please
A time-proportioning (PWM) controller with a DC output voltage of 35 volts will produce an average voltage of ____________________ volts if it is switched ON for 0.72 of the time.
Note provide an answer to include two decimal places.
Chapter 58 Solutions
Electric Motor Control
Knowledge Booster
Similar questions
- H.W: What instruction would you select for each of the following discrete input field devices to accomplish the desired task? (State the reason for your answer.) a. Turn on a light when a conveyor motor is running in reverse. The input field device is a set of contacts on the conveyor start relay that close when the motor is running forward and open when it is running in reverse. b. When a pushbutton is pressed, it operates a solenoid. The input field device is a normally open pushbutton. c. Stop a motor from running when a pushbutton is pressed. The input field device is a normally closed pushbutton.arrow_forwardConvert the control circuit only, Figure 2111, from the wiring diagram to an elementary diagram. Include the limit switches (RLS, FLS) as operating in the control circuit.arrow_forwardDc motor control using L298N module. Write the code to drive a dc motor using L298N module in arduino IDE.arrow_forward
- A 1-p On-Off AC voltage controller supply voltages of 440 volts and the output obtained is 220 volts. The number of Off cycles is 75. Find the number of On cycles. 50 25 O 100 O 75arrow_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_forwardb- Fill in the blanks (Answer Two Only) 1- Give an application of three phase AC voltage controller. 2- converts fixed DC voltage to a controllable DC output voltage. is responsible of sensing and measuring the 3- In electric drive system, change at the load side and return the values to the controller.arrow_forward
- Automatic kettle is an example of ________________________. a. Servomechanism b. Sequential control system c. Numerical control system d. Process Control systemarrow_forward4. A control system in which the manipulator variable, the control variable for the operation of the system is human is called.... a. Automatic control systemb. Open circuit control systemc. Loop control systemd. Manual control systeme. Closed circuit control systemarrow_forwardIdentify the input device which is connected to a controller in which all the control actions are performed by a microcontroller. a. Valve b. Proximity Sensor c. Contactor d. Motorarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning