Good day,
I have a potential client that has an existing 1,000 foot run from the meter and transformer at the street to the home. This is 4/0 Al and quick calcs show the voltage drop at over 12%. He acknowledges that the wire is undersized to keep voltage at/about 240 volts (I have not measured directly at the street / transformer yet). I know the wire has the necessary ampacity to carry his current service needs and to carry amps from the to-be-suggested solar system. My concern is that the voltage drop will change the 240 volts at the street/transformer/meter to 211ish (or will I see a higher 268'sh voltage at the far house end?) at the house. The inverter will try to synch to this voltage but of course this is outside of typical inverter parameters. So, instead of re-running much large wire, does anybody have experience and comments about potentially using a buck-boots transformer at the home to get us back to 240 volts? This would need to be service entrance sized. Howard "Scot" Arey Owner, Solar CenTex 254-300-1228 scot.a...@solarcentex.com
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