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

[Darryl Thayer]

I believe a 240v meter will work, as the meter
measures the voltage and the current and does the
multiplication.  My experiance with a 4 jaw meter in
the past worked just fine.  If you have a Neutral
current, which you should not have, (you should not
even have a neutral connection) it might put the
reading off.  But you should not have a neutral
connection. If you have a neutral connection, then you
need a 5 jaw meter, (this is the type we use in
appartment buildings where we have 120/208 3 phase and
deliver to each unit 120/208 uning only 2 legs of the
3-phase.    
Darryl 

--- Nicholas Ponzio <nponzio at buildingenergyus.com>
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
> 



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