230 Generator poweringfuseboard & earthing

[aaelectric]

Hi

I've been asked to fit a 10kva generator to supply a 17th edition fuse board.
The problem I'm having is when i test for my ze from live to earth i get 28v but from neutral to earth i get 230v. I thought i had reversed polarity so i swapped the live and neutral over at the main switch in the fuse board, but it made no difference and the same happened again. I have fitted an earth spike connected to the earthing terminal on the generator and have a 32 amp commando socket connected. I tried to take a reading for my ze but the frequency from generator is 255hz and my tester ( megga 1720 ) will not let me as the hz is over 50 hz. The two rcds both trip on the test buttons but cannot get a millisecond reading. I have left the existing earth of the tns cable coming in connected as it is still feeding the flat above the shop. Any advice on this and why i would be getting 230 between neutral and earth. If i turn the main switch off at the fuse board between live and earth i get 110 v and between neutral and earth i get 110 v but as soon. As i turn the power on I don't get any voltage between live and earth. This is my first generator installation, any advice welcome

 

[electric will]

Will use this and look up horsepower

i clicked a little after I posted. Didn't know the exact figure but guessed it'd be to do with hp to watts.

 

[Marvo]

Sorry electric-will it was a joke but not a very funny one.

There's a link in the other thread I highlighted to the iet website and an article on portable generators but for some reason they don't mention V-O-V configuration, they only show generators as a single winding.