Re: Automatic Generator cut in

["Dan Lowe" <ukha@xxxxxxx>]

Mick

> How do I know if the genny produces clean enough power
> for the UPS?

In my experiance you need to make sure your genny has an electronic
governor
to ensure the output does not upset the UPS.  You can find the UPS can sit
there smoothing for the entire runtime which is not ideal.

-dan



>   -----Original Message-----
>   From: Nigel Giddings [mailto:nigel.giddings@xxxxxxx]
>   Sent: 10 May 2003 08:37
>   To: ukha_d@xxxxxxx
>   Subject: RE: [ukha_d] Automatic Generator cut in
>
>
>   Mick,
>
>   You need to ensure that the genny produces power clean enough to
satisfy
> the
>   ups otherwise it will continue to run on the battery.
>
>   Also gennys run best at 60 to 80% loads so sizing is important, I am
> looking
>   at about 10KVA with two immersion heaters (3Kw) in a heat store to
dump
>   power when the house is on low load....
>
>   Self start panels are commercially available for this size of
generator
> and
>   that is the way I will e going.
>
>   Nigel
>
>   -----Original Message-----
>   From: Mick Furlong [mailto:hiltoneltd@xxxxxxx]
>   Sent: 09 May 2003 23:24
>   To: ukha_d@xxxxxxx
>   Subject: [ukha_d] Automatic Generator cut in
>
>   OK something on topic for a change;)
>
>   Scenario is as follows.....
>
>   Generator in outside boilerhouse
>
>   3xUPS (one with interface to Server PC) inside main house running
some
>   lighting and some computer/networking kit.
>
>   Every imaginable cable type running between the boiler house and the
main
>   house and a duct to run more if needed.
>
>   Questions are...
>   How do I get the generator to autostart if there is a mains failure?
>   Do I need a special generator (I haven't picked one yet)?
>   I believe the wiring needs to be isolated from the mains when the
> generator
>   is running how do I do this automatically?
>   How do I get the system to cut over to the mains once the power is
back?
>   Finally how do I do all of this on a reasonable budget?
>
>   Thanks in advance for any ideas
>   Mick
>
>
>
>
>
>
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>
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