Under normal conditions, what should the state of the normal phase rotation pilot be?

Prepare for the Fire Pump Run Test. Utilize our comprehensive flashcards and multiple-choice questions, each designed with hints and explanations. Master the content and boost your confidence for the exam day!

Multiple Choice

Under normal conditions, what should the state of the normal phase rotation pilot be?

Explanation:
The indicator for normal phase rotation is meant to show that the three-phase supply has the correct sequence and the motor will turn in the intended direction. When everything is wired and powered normally, that pilot light should be energized and stay On. This confirms the control circuit and phase order are correct, so the pump will start and run properly. If the light were Off, Dim, or Flashing, it would signal a fault or misphasing that could cause incorrect rotation or loss of proper operation, which is not acceptable for normal conditions. So, under normal conditions, the normal phase rotation pilot should be On.

The indicator for normal phase rotation is meant to show that the three-phase supply has the correct sequence and the motor will turn in the intended direction. When everything is wired and powered normally, that pilot light should be energized and stay On. This confirms the control circuit and phase order are correct, so the pump will start and run properly. If the light were Off, Dim, or Flashing, it would signal a fault or misphasing that could cause incorrect rotation or loss of proper operation, which is not acceptable for normal conditions. So, under normal conditions, the normal phase rotation pilot should be On.

Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy