[BC] Transformers needed

[R A Meuser]

Bill

600 volt transformers are pretty common in Canada. You could find some 
off the shelf units. Look at control transformers. Working with smaller 
wire may offset is an advantage.



Bill Sepmeier wrote:
> Just considering the options ... 480/600VAC would lose less than 2% on 
> #12 gauge.  It looks like I'll probably go with something along the line 
> you detail, though ... transformers in the range I'd like just aren't 
> all that common anymore.  This has turned into something of a mad 
> scientist project out here .... I calculated the return on investment 
> recently and I don't think my kids will olive to see one!  But, it's my 
> hobby-turned-business, so it doesn't matter...
> 
> Frankly, the best ROI on any of this technology I've put in so far by 
> FAR is the solar thermal ... and that "free" tank of 150 F water every 
> day makes for much longer and more enjoyable showers!  I don't 
> understand why every home in the country doesn't have solar hot water. 
> It's so easy....
> 
> B
> 
> 
> 
> At 07:29 AM 10/25/2007, you wrote:
> 
>> not to rain on your idea here, but is it really worth the effort and 
>> cost of the
>> transformers vs the cost of larger wire ?
>>
>> I make the current to be 8.33 amps per leg
>>
>> using 10 amps for ease of figuring, and a conservative 2% voltage drop 
>> max, then # 1 wire
>> would work as it has 0.1239  ohms per 1000 ft
>>
>> if you can live with 4 % drop, then # 6 would work out
>>
>> since you are using six phases, you might want to consider using a 
>> pair of service
>> entrance 'triplex' cables (as used for 3-phase POCO pole-to-meter) for 
>> this, any
>> electrical supply house can give you a price on this (and probably cut 
>> you a deal if you
>> buy two 1000-ft rolls at once)
> 
> 
> 
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