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Author Topic: RCD-Residual Current Device pop up when press stop  (Read 209 times)

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RCD-Residual Current Device pop up when press stop
« on: October 25, 2020, 01:05:35 PM »
we have very strange problem
when we press stop(after we press hold and wait awhile then press stop)
the residual current drive "jump" attach the rcd photo
is any ide what happened when we press stop that can cause this?
Re: RCD-Residual Current Device pop up when press stop
« Reply #1 on: October 25, 2020, 09:47:14 PM »
Hi,
at depower of your circuit one phase is hanging on a few milliseconds longer than the other phases creating a
phase imbalance leading to an RCD trip event.

It looks like the RCD is 'C' curve, that is to say the type demanded by most electrical authorities for protection
of domestic consumers. There are other types, I think possibly 'D' or 'M' types which are more tolerant of momentary
imbalance that will not nuisance trip.

Any industrial electrician will tell you what RCDs are required in domestic situations and those which are for industrial
situations in your jurisdiction.

Craig
My wife left with my best friend...
     and I miss him!

Offline Stuart

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Re: RCD-Residual Current Device pop up when press stop
« Reply #2 on: October 26, 2020, 07:15:39 AM »
M is the one