Question 126Electricity/Electronics - Assistant Engineer70% to pass
Referring to the illustration of a steering gear hydraulic power unit motor controller, if the motor is drawing current no greater than full load current, what will the status of the overload relay contacts and the control relay contacts be? Illustration EL-0119
AI Explanation
The correct answer is B) The overload relay contacts will be CLOSED and the control relay contacts will be OPEN.
When the motor is drawing current no greater than the full load current, the overload relay contacts will be CLOSED, as the overload condition has not been triggered. This allows the motor to operate normally.
However, with the motor running at normal current, the control relay contacts will be OPEN. The control relay is used to activate or deactivate the motor, and with the motor running at normal current, the control relay is not energized, keeping the contacts in the OPEN position.
The other answer choices are incorrect because they do not accurately reflect the status of the overload relay and control relay contacts under the given operating condition.
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