Sparks wrote:
wrote in message
...
I have a 6.5kw 220v single phase generator that I want to wire up to
supply backup supply to a couple of offices in my house. The mains
supply in the house is three phase 220v...
Is there a way to wire this up? Something like an isolator/generator
switch on one of the phases (as long as the offices are on the same
phase)? I don't want to go to the additional expense of purchasing a 3
phase generator or a single to three phase converter but would like
backup power into the office circuits. I'm not too concerned about
have the entire house on the generator but do need the offices....
Thanks

Something like this
http://www.briggsandstrattongenerato...ertransfer.htm
connected to one of the phases then to a new consumer unit, supplying
power to both offices would work.
This would then allow you to power everything on this new consumer unit
from the generator in a power cut.

Note that you will need to pay careful attention to the earthing
arrangement here. If you normally have an earth connection provided by
your electricity supplier (i.e. TN-S or TN-C-S), then you will not be
able to rely on this when using the generator. This can make switching
more complex since you may require alternative circuit protection
arrangements.

--
Cheers,

John.

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