Bundle: Understanding Motor Controls, 4th + Mindtap Electrical, 2 Terms (12 Months) Printed Access Card
4th Edition
ISBN: 9780357097755
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 29, Problem 8RQ
What two factors determine synchronous speed?
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The piston rod of a double-acting cylinder is to advance when a 3/2- way push button valve is actuated manually. The cylinder is to remain advanced until a second valve is actuated. The signal of the second valve can only take effect after the first valve has been released. The cylinder is to then return to the initial position. The cylinder is to remain in the initial position until a new start signal is given. The speed of the cylinder is to be adjustable in both directions.Draw the circuit diagram for the problem.
Based on the timing diagram below, choose the correct statement regarding Timer Relay.
On
Coil
Power
ff
+ 5 →
Seconds
Closed
Contact
Status
Open
Time
Select one or more:
O a. This is the OFF-Delay Relay
O b. This is the ON-Delay Relay
O c. The relay can used in automatic gate at car parking application :- when sensor detect car already pass
by to parking area, motor to control gate closing will turn ON after a few minutes.
O d. When the coil energized, the relay contact will make connection at the same timing.
7.How many fully rotating revolutes in a crank
rocker mechanism?
Аз
В 1
C 4
D 2
Chapter 29 Solutions
Bundle: Understanding Motor Controls, 4th + Mindtap Electrical, 2 Terms (12 Months) Printed Access Card
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- What is synchronous speed?arrow_forwardAssume that you are to design a 3V V-belt drive. Given that input speed as 1750 rpm and nominal output speed as 725 rpm. Starting with belt linear velocity 4000 ft/min, specify the output sheeve D2 once you specify D1 from last question. D2 = ___ in. Provide write down steps including equations.arrow_forwardvibrationarrow_forward
- Analyze the diagram above. Some of the drives system of the figure above has its own depreciation on its efficiencies as the lifecycle progress. State one of the reasons of why the efficiency drop on and explain any method that can increase this efficiency especially on the directional control valvearrow_forwardWhat exactly does the inability to resolve the stopping problem mean?arrow_forwardWhich linear actuator would work best for the following specifications? 1. distance of travel = 30mm 2. time to travel < 0.3 sec 3. number of positions: 2 (one at x-0; and one at x-30mm) 4. tolerance: +/- 2mm 5. load: +/- 0.4 Newtons O linear motor O lead screw O solenoid O hydraulic cylinder O pnuematic cylinderarrow_forward
- What are the two forcing frequencies?arrow_forwardA swivel bridge is bought into the desired position by means of a double–acting cylinder. The piston rod of a double–acting cylinder is to extend when a push button switch is actuated. The cylinder is to remain extended until a second switch is actuated and only if the first switch has been released. The cylinder is to then return to the initial position. The cylinder is to remain in the initial position until a new start signal is given. The speed of the cylinder is to be adjustable in both directions of travel. a) Draw the pneumatic and electro-pneumatic circuits of the systemarrow_forwardThe supply frequency is 50 Hz. What will be the rotor voltage frequency if the motor speed is equal to 90% of synchronous speed. O 45 Hz. O 10 Hz. 05 Hz. O None.arrow_forward
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