Question 242Electricity & Electronics - 1st Asst/Chief

The correct answer is D. The illustrated circuit schematic labeled EL-0222 option D provides phase failure protection for a three-phase motor using load-side current sensing technology. This type of protection monitors the current in each phase of the motor and can detect the loss of one or more phases, which can cause damage to the motor. By using load-side sensing, the circuit can directly measure the current being drawn by the motor and take appropriate action to shut down the motor in the event of a phase failure. The other answer choices (A, B, and C) do not provide the same level of phase failure protection or may use different sensing methods, making them incorrect for this specific application.