What term describes the combination used to reverse motor direction?

Prepare for the NCCER Electrical Level 2 Control Systems and Fundamental Concepts exam. Utilize flashcards and multiple choice questions with hints and explanations. Ensure success on your exam!

Multiple Choice

What term describes the combination used to reverse motor direction?

Explanation:
Reversing a motor’s direction is done by swapping two of its supply lines, which changes the rotation. A magnetic reversing starter is the device that makes this swap safely using two contactors and interlocks, controlled by forward and reverse controls. It also provides overload protection, so the motor is not only reversed but protected during operation. The other options don’t fit the common control setup for reversing: a soft starter limits starting current but doesn’t change direction; a VFD can reverse through its control, but that’s a different solution and not the standard “reversing starter” arrangement; and a relay-only setup wouldn’t reliably swap the lines or prevent both directions from energizing simultaneously without additional interlocking.

Reversing a motor’s direction is done by swapping two of its supply lines, which changes the rotation. A magnetic reversing starter is the device that makes this swap safely using two contactors and interlocks, controlled by forward and reverse controls. It also provides overload protection, so the motor is not only reversed but protected during operation. The other options don’t fit the common control setup for reversing: a soft starter limits starting current but doesn’t change direction; a VFD can reverse through its control, but that’s a different solution and not the standard “reversing starter” arrangement; and a relay-only setup wouldn’t reliably swap the lines or prevent both directions from energizing simultaneously without additional interlocking.

Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy