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3 phase power for pole pigs



Original poster: "Kelly & Phillipa Williams by way of Terry Fritz <twftesla-at-uswest-dot-net>" <kellyw-at-ihug.co.nz>

Hello All,

I just went down to the local power company depot to get some 0.276 inch
solid copper wire, I saw a yard full of old power distribution transformers,
most of which work, but have been rendered obsolete. I live in a residential
area of a small city,
and I would very much like to upgrade my 15kV 120mA NST farm to a pole pig
soon. However, I am wondering how I will power the transformer when (if) I
get it.
Our house only has single phase power, but there is a massive 3 phase
terminal block in a green box on the footpath right outside our house.

Questions -

1. *Must* you run a pole pig on 3 phase power, or can you use single phase
for lower power levels like I will be running (under 20 Amps)?

2. Assuming you do need 3 phase for a pole pig, do you have to pay the power
company to install hardwired 3 phase power to your house for a power
distribution transformer?

3. Assuming you do need 3 phase, can you use capacitors on a single phase
line to fool the transformer into thinking it has 3 phase power for lower
power levels (~20 Amps)

I have no experience of 3 phase transformers, but I have played with up to
10 MOT's at a few kVA power levels, as well as the 15kV 120mA NST's.

Thank you very much,

Alan Williams