zero speed switch
zero speed switch
(OP)
Is there any way to use the voltage from a coasting down motor for a zero-speed detection switch instead of installing a mechanical one?
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: zero speed switch
Once an induction motor is de-energized, it loses it excitation source and the voltage decays rapidly within a few cycles. There might be a very small voltage due to magnetization of the iron, but I don't think you could count on it.
Not that I've ever tried it.