XPost: sci.electronics.design
From: howarde@NOSPAMhfx.eastlink.ca
1st question- Is the existing wiring out to the barn up to the job?
i.e. how many amps is your genset capable of suplying- 60 amps through
#10 ain't gonna cut it.
2nd- how many amps is your service rated for & how many can the genset
supply? A 60 A feed into a 200A service means you're gonna be
manually flipping brakers off anyhow...
3rd- Is there a seperate main service dissconnect from your breker
panel? If not you'll have to add noe between the meter & panel if you
want the xfer swittch to feed th whole house
4th- how understanding is the carrier for your fire insurance?
Jerry-rigged transfer switches using non-approved parts aside if
there's any problems at all with *any* of your wiring (whether you
were the last one to touch that particular part or not) that causes a
fire you can probably kiss your coverage goodbye :(
Personally I'd go with a type approved manual transfer switch, with a
seperate feed coming to it from the generator, feeding a "essential
services" sub panel .
Remember- The Life You Save May Be Someone Else's.
H.
On Wed, 24 Feb 2010 12:34:25 -0500, "Jon"
wrote:
>I'm trying to wire a transfer circuit for a generator.
>
>The generator will be located in the barn. The electrical service is at the
>house. Two 120vac wires and a ground go to the barn. There is *one* unused
>wire from the house to the barn I can use for a signal circuit.
>
>When the power goes off at the house, I need to disconnect the service to
>prevent backfeed and activate for generator power to both the house and the
>barn. When the service power goes on I need to disconnect the generator to
>avoid damaging it and restore normal service to the house and the barn.
>
>I have,
>
>*one 240vac 60 amp dpdt mercury relay
>*two 120vac 60 amp 3pdt relays.
>
>Any ideas?
>
>Jon Giffen
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