Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 21, Problem 3SQ
If a reversing control circuit contains push-button interlocking, what would happen if both the forward and reverse buttons were pushed at the same time?
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Chapter 21 Solutions
Electric Motor Control
Ch. 21 - How is a change in the direction of rotation of a...Ch. 21 - Prob. 2SQCh. 21 - If a reversing control circuit contains...Ch. 21 - How is auxiliary contact interlocking achieved on...Ch. 21 - After the forward coil has been energized, is the...Ch. 21 - If a mechanical interlock is the only means of...Ch. 21 - If pilot lights are to indicate which coil is...Ch. 21 - What is the sequence of the operations if the...Ch. 21 - In place of the push buttons in Figure 214, draw a...Ch. 21 - From the elementary drawing in Figure 2110,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- What happens if the reverse push button is closed when the motor is running in the forward direction as in Figure 485?arrow_forwardSelect the best answer for each of the following. When the reset button does not reestablish the control circuit after an overload, the probable cause is a. the overload heater is too small. b. the overload trip has not cooled sufficiently. c. the auxiliary contacts are defective. d. the overload heater is burned out.arrow_forwardWhich of the following steps is missing in the open-loop control system sensing the state of the system thinking about what to do to the system doing something to affect the system timing the systemarrow_forward
- Advanced industrial motorarrow_forwardDraw a circuit diagram of two start push button for synchronize operation with single emergency stop and single stop push button, discuss for what application such design of a circuit?arrow_forwardUnder what conditions would a control relay be used in a controlled systemarrow_forward
- The figure below shows the closed loop position control block diagram of a spring mass damper system. Based on this figure , answer the following questions (13-21) 13. Block number 3 represents.. . function * ...transfer 6 20s+50 2 2s $2+8s+4 (4) (5) (1) (2) (3) 10 Position Sensor Controller Process O Actuatorarrow_forwardWhat will happen if the start and jog push buttons of the circuit shown in Figure 234 are pushed at the same time?arrow_forwardFor a start-stop push button control circuit that has been reconnected so that the start button is in parallel with both the stop button and holding contact, how do you jog and run the motor?arrow_forward
- Make a conventional wiring diagram to rotate a 3phase motor cw ccw with indicator lamps. When the motor rotates, a single acting cylinder extends? What happens if push buttons for cw and ccw are pressed at the same time?arrow_forward1. Fill in blanks. (1) can be used to prevent short-circuit. (2)There are two kinds of commander apparatuses which are and is often used to prevent motors from long-term overload. (4)According to the type of current passing through the main contact, electromagnetic contactors are classified into and (5)In multi-position control circuit, the start buttons are connected in are connected in (6)The partial-voltage starting includes starting and , the stop buttons starting.arrow_forwardTor F 1. Extended head pushbuttons are typically used for stop functions. T or F 2. A NC pushbutton will pass power when the button is pressed. T or F 3. A white pilot light is typiçally used to indicate a fault or danger. Tor F 4. Pick-up voltage is the amount of voltage required to operate or transition the contacts of a relay. T or F 5. A seal in contact allows the circuit to remain energized when the starting condition is removed.arrow_forward
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