[Shop-talk] Yet Another Wiring Question

[Doug Braun]

I recently read an article about how Con Edison (the electric company in NYC)
had finally stopped providing DC service in 2007.  Apparently some old
buildings needed it for their old elevators.  I have no idea how many phases
they provided :-)

Doug

--- On Tue, 6/30/09, Vin Marshall
<vlm at te-motorworks.com> wrote:

> From: Vin Marshall <vlm at te-motorworks.com>
>
Subject: Re: [Shop-talk] Yet Another Wiring Question
> To: "Shop-Talk List"
<shop-talk at autox.team.net>
> Cc: "Doug Braun" <doug at dougbraun.com>
> Date:
Tuesday, June 30, 2009, 7:11 PM
> A 2 phase circuit would look like
> what I
have here in my shop (an old building in
> Philadelphia): two separate, 240 V
single phase circuits
> phased 90 degrees apart.  Upon entering the shop,
these
> two circuits run into a 2 phase -> 3 phase transformer.