RCD Tripping

[EmgeeParticipant @emgee]

Strange Raphael as that is the connection of earth from motor to the motor mounting frame, required to give continuity because of the flexible mounting method. Looks like it had a ring terminal connected to 1 of the through studs to make the connection.

That wire being disconnected would not cause your trip to function so more likely you rectified the fault by other means, perhaps the fan did the trick. In any case good you are running again.

Emgee

[Nigel McBurney 1Participant @nigelmcburney1]

If your S7 motor has ventilation slots to help motor cooling,a known problem is swarf falling or thrown into the slots a,resulting in various electrical faults including power tripping and motor shorts leading to motor burn out, this can cured by fitting an aluminium or steel shield over the motor ,allow some space for airflow and do not foget a shield will cover motor bearing lubrication points if fitted. Another fault,which arised in my workshop is long damp periods due to the rain, insects can get into swichgear,or 13 amp skts, spiders are worst with their webs,the insect or the web gets damp and thrws the trips. My solution a long time ago was to seal all the cable entries and any unused mounting holes with mastic,no more problems until a month ago,lighting circuits were ok it was just the ring main around the shed,9 sockets to check,so it was a case of checking each socket in turn it was the 8th one that had the spiders web.All cleaned now and tripping stopped, it was so long ago that I sealed the sockets that the mastic had hardened a shrunk and let insects in,another job to do. Then I had a thought ,last year we put the freezer in the garage and that has its own ring main with trips,so those sockets need checking I have also placed a red neon warning light visible through the garage window so that I can check the electrics are on,Could cause a lot of domestic upset if the freezer circuit tripped and was not noticed.

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