HELP!!!! This thread has given me a real headache! Wolfgang's revelations about the effectiveness of earthing via a simple rod have led me to realise that my three-phase antique woodworking machines, run off a generator, have inadequate protection against earth faults/shock.
The alternator is wired star, and makes around 400v 50hz. A full description has been been posted, (see Photos for Discussion 5-18-05), and at that time I re-wired centre star to earth on advice from the Forum. There's about 10 metres max. between the alternator and the furthest machine, and I have a 10A 3ph breaker as overload, which see. All machines are earthed using a discrete shop 4 ft copper rod into heavy clay.
Ideas anyone?

Alan
Oh, and thanks Wolfgang!


Wood work but can't!