metering 1-phase inverter in 3-phase service? [RE-wrenches]

[Steve Johnson]

Nik,

You can buy a 5th terminal lug for your regular 240 volt meter base that 
will let it accept a Form 12s network meter from the utility.  (about 
$6.00) This is what my utility required.  However others have said the 
regular meter base worked fine.  I'm monitoring an installation each way 
to see what how they read compared to the inverter 'etotal' kwh reading.

Steve


Nicholas Ponzio wrote:
> 
> Wrenches,
> 
> We're installing a Sunny Boy 5000US in a commercial building with
> 3-phase 208 (L1, L2, L3, N). The output of the SB will only be
> 1-phase, 208 (L1, L2, N). How do I meter this? Will a standard 240V
> kwh meter be accurate in this application or do I need a 3-phase
> meter?
> 
> Thanks in advance for any input.
> -Nik



Steve Johnson
LightWave Solar Electric
Nashville, Tennessee


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