AdamBlack760
Well-Known Member
Get your self an electrician. All you need to know is that every 3rd leg to ground is 220. And most likey your have 400amps ran 110 or 44000 watts.
100 amp 3 phase grow room question!
- Thread starter ZCDelivery
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SnapsProvolone
Well-Known Member
Could always ask poco for a 400/320 amp split phase. Assuming you're legal.
SnapsProvolone
Well-Known Member
Way off base.
AdamBlack760
Well-Known Member
How so
SnapsProvolone
Well-Known Member
Simple math.
Leg to Leg amps is 100 x SQUARE ROOT OF 3 ( x 0.80)
100 × 1.73 × 0.80 = 138.4 amps usable leg to leg (208v)
Leg to Neutral is likely derated.
SnapsProvolone
Well-Known Member
Leg to neutral PF if not derated, is Cosine (30) or .866
So leg to neutral max IF transformer is not a derated neutral would be 300 x 0.866 = 259.8 x 0.80 = 207.8 amps of perfectly balanced 120v
So leg to neutral max IF transformer is not a derated neutral would be 300 x 0.866 = 259.8 x 0.80 = 207.8 amps of perfectly balanced 120v
SnapsProvolone
Well-Known Member
Only time three phase is more efficient is when primary loads are three phase devices. This generally means larger motor loads, typical to industrial applications.
Split phase is inherently better suited to the grower.
In some very large > 50 ton operations, three phase service is used for HVAC and a split phase service for lighting.
ttystikk
Well-Known Member
That's where my intuition was leading me, thanks for the confirmation.
As it happens, a lot of AC and water chilling currently going into commercial operations is split phase and not three phase- it's what the market demands. Hydro pumps apparently just don't need three phase power, lol