If a mechanical interlock is implemented in a reversing starter, what happens if

Question

If a mechanical interlock is implemented in a reversing starter, what happens if the forward coil is energized, as you try to energize the reverse coil as well? The forward coil remains the only coil energized. The reverse coil becomes the only coil energized. Both coils are energized simultaneously. No coil is energized. In push button interlocking, what happens if the motor is running in the forward direction and you push both forward and reverse push buttons? The forward coil remains the only coil energized. The reverse coil becomes the only coil energized. Both coils are energized simultaneously. No coil is energized. What circuit configuration can be used to allow motor control from more than one location? Two-wire control Three-wire control Multiple push buttons Push button interlock

Explanation / Answer

8- a (The forward coil remains the only coil energized)

In mechanical interlocking you have to first close the supply from forward contactor manually. after that you can run the reverse contactor only.

9- ( The reverse coil becomes the only coil energized)

This is due to the push button interlocking. This Interlocking provides a way to run only one contactor at one time. If we press the forward button only forward contactor will operate. If we press reverse button, forward contactor will stop(de-energize) and the reverse will be energized automatically.

10- b( three wire control is used to control the same motor from multiple locations.)

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