Gewiss Restart

[geordie]

Just wondering if anyone has installed a Gewiss Restart RCD.I have a customer who would like 2 install but having not used it before I want to know what other thought of it.

 

[Marvo]

Haven't used them but I never grasped the point of them. If you have an insulation or earth leakage problem the chance of it miraculously curing itself and a successful restart happening would be pretty slim.

 

[Deleted member 19807]

I have had a demo at there chippenham office and they look good. Around the £180 mark

the point is that RCD's can trip due to external influences, and it stops people comming home to a warm freezer or having to go out to a remote monitoring station just to reset an RCD.

 

[Guest123]

Auto restart of anything after a 'fault' goes against everything we know IMO.

 

[Knobhead]

It’s technology pinched from the supply industry. auto reclosers are used a lot for rural OH lines.

But in a domestic situation they are dangerous. Reclosing on to a fault is something you don’t undertake lightly. A close friend’s house was gutted by fire due to reclosing on to an earth fault.

 

[Engineer54]

It’s technology pinched from the supply industry. auto reclosers are used a lot for rural OH lines.

But in a domestic situation they are dangerous. Reclosing on to a fault is something you don’t undertake lightly. A close friend’s house was gutted by fire due to reclosing on to an earth fault.

Not unless this RCD re-closer has a sensing circuit facility, that won't re-close onto a fault. For 180 odd quid, i'd expect such a sensing facility...lol!!!

 

[alarm man]

the point is that RCD's can trip due to external influences, or having to go out to a remote monitoring station just to reset an RCD.

thats a posh name for a garage,

 

[Knobhead]

I’m going on hypothetical theory, but yes I have looked at their web site. OK the super RCD senses a fault. how does it determine if it’s a transient fault or an established fault? The only way is reclose, now do you set the trip for standard trip time or an extended burn though time. This I can’t determine from the web site how they define the fault. Burn through is how MV auto reclose beakers work:

EF or O/L trip,
A timed gap,
Reclose, short term. If the system holds then reset the system.

If EF or O/L trip happens again,
Timed gap,
Reclose, short term. If the system holds reset the system, if it fails then a longer timed lag before the next reclose.

If EF or O/L trip again then the 2nd sequence starts
Reclose, long term. If held reset system
EF or O/L trip,
Lock out!

The last bit is to burn a fault away, if that fails you’ve f**ked it. I’ve always said I’m an animal with electrickery!

 

[Feyaz]

I found the gewiss product and another from autorcd.com