Draw the control circuit of a motor starter system that controls two motors A and B. Each motor must have its own start and stop push button. Each start push button must have a memory or latch function so that the motor stays running when the button is released.
each motor must have a green pilot light which is on when the appropriate motor is running.
the circuit must include a red pilot which should be on when no motor is running
the control circuit must be setup so that motor B cannot be started unless motor A is running
the control circuit must be powered by a black and white wire across which is 120VAC. Include numerical cross reference.
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SOLUTION:
Draw the control circuit of a motor starter system that controls two motors A and B....
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UNIT TEST 1. Which of the following statements is a characteristic of a control transformer? a. b. Permits switching off the load Prevents motor overload c. d. Provides control voltage compatible with relay coils Enables motor phase reversal 2. Which contactor utilization category permits plugging operation? a. AC-1 b. AC-2 с, АС-3 d. AC-4 3. What happens as power returns, in a three-wire motor circuit, following a pow failure? a. The motor restarts automatically b. The motor remains de-energized. c....
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