[GreenKeys] 2 1/2A SCREW IN FUSE

[Pete Lancashire]

Pretty much all single phase today.

There were trials done in a few locations where residential electrical
demand was high Phoenix AZ in the summer,
There are still a few 'burbs where the houses have 3 phase. This was when
electricity in many parts of the USA
was 'free' and you A/C'ed your house in the desert, watered the lawn
365/year, etc.

Back closer to home, Portland Oregon I have friend who has next to his
house a no longer used cannery. His
house is fed from one of the three pole transformers. When He built his
shop he asked how much to feed his
shop with 3PH, all three transformers where there. Was something like USD
5,000.

I remember joking with him. your house is on Phase A, get the shop on Phase
B and build a shed and have
it put on Phase C, .. can't say what my next suggestion was :-)

Residential here is around $15/month not including the KWH's

On Mon, Aug 14, 2017 at 9:54 AM, Bruce Gentry <ka2ivy at verizon.net> wrote:

> Most ulilities in the USA are extremely reluctant to provide three phase
> to single residences unless the customer is willing to pay thousands in
> installation costs and agree to a signifigent minimum bill regardless of
> the amount used. They will do this even if the three transformers are
> already on the pole in front of your house feeding an apartment building
> across the street. Many people needing or wanting elevators in their homes
> or wanting to restore and install pipe organs have been seriously
> discouraged because of these policies. Many air conditioners, larger
> appliances, and residential elevators today have three phase motors powered
> by inverters that convert single phase to three. Single phase AC motors are
> less efficient- sometimes drastically- than a three phase. Their windings
> are more complex, starting switches and condensors add cost size and
> complexity, and they often will not start under load and will be damaged by
> repeated attempts to start.
>
>       Bruce Gentry, KA2IVY
>
> On 8/14/17 11:48 AM, Sheldon Daitch via GreenKeys wrote:
>
>
>
> Three phase in US housing is probably not the norm, although I did know
> that one home in my small hometown in Georgia was three phase and the now
> silent key told me it was because of the central air conditioner unit for
> the home.
>
> 73
> Sheldon
> WA4MZZ
>
> ------------------------------
>
>
> As in VK/ZL, along with a separate earth on a 6ft copper spike.  As I gaze
> out my window, I see a pole (the pig is further down the street) with
> three wires on top carrying 11kV (yes, really!)[*] and four wires a bit
> further down carrying the 415v + neutral; the household drops take a phase
> in turn plus the neutral.
>
>
>
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