Re: Wireless power transmission

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Harvey Norris <harvich@xxxxxxxxx>


--- Tesla list <tesla@xxxxxxxxxx> wrote:
> >Uhhh, don't almost all of the electrical power
> systems on earth already
> >return through the ground w/o much environmental
> impact?
> >
> >Matt D.
A 3 phase alternator is said to always be internally
wired with the three stator windings wired in WYE,
leaving the remaining connections as stator line
outputs. This affords for a higher voltage output then
exists on the other possible DELTA output, where then
each stator segment would have its own corresponding
unique phase. The Wye configuration actually is a
combination in series of two of the three stator
outputs, therefore it is actually the vector sum of
each of these 120 degree misphased emfs. NOW obviously
the power Co employs this same scheme  as the central
WYE connection is refered to as the 4th return wire,
which is then probably the connection that is grounded
both at the power Co, and at the point of
distribution. But the currents on this wire only exist
when an inbalance of currents exist on the three phase
loads, and ordinarily in the WYE load the returning
current goes through the adjacent phase, and only
through that grounded 4th wire return path as a result
of unequal phase currents. Even though both of these
points are grounded, the electricity goes through the
4th return wire, and not the ground path. Since the
power generating stations ground is thought to be the
4th reture wire also, one wouldn't think that any
significant ground/machine currents exist there
either, only in the case of unbalanced loads...
HDN