133 lines
5.3 KiB
Plaintext
133 lines
5.3 KiB
Plaintext
|
|
|
|
|
|
|
|
(word processor parameters LM=8, RM=75, TM=2, BM=2)
|
|
Taken from KeelyNet BBS (214) 324-3501
|
|
Sponsored by Vangard Sciences
|
|
PO BOX 1031
|
|
Mesquite, TX 75150
|
|
|
|
There are ABSOLUTELY NO RESTRICTIONS
|
|
on duplicating, publishing or distributing the
|
|
files on KeelyNet except where noted!
|
|
|
|
February 2, 1992
|
|
|
|
HVOIL.ASC
|
|
--------------------------------------------------------------------
|
|
From Popular Science, June 1951, page 112-113
|
|
--------------------------------------------------------------------
|
|
|
|
Piping High Voltage in Oil
|
|
|
|
Have you ever wondered how cables carrying many thousands of volts
|
|
are snaked safely through a big city? High lines, such as used in
|
|
the open country, are out of the question. The high-voltage lines
|
|
must go underground.
|
|
|
|
This problem confronted Consolidated Edison engineers when they
|
|
recently decided to link up major New York City powerhouses and sub-
|
|
stations with 138,000 volt tie lines. They solved it by running
|
|
their "hot" cables through underground steel pipes filled with oil
|
|
at a pressure of 200 pounds per square inch.
|
|
|
|
The high-pressure of oil not only increases the insulating qualities
|
|
of the many layers of oil-impregnated paper encasing the cables, but
|
|
it also keeps the conductors down to 158 degrees F. even while
|
|
carrying high loads.
|
|
|
|
The system, pioneered by the Okonite-Callender Co., of New Jersey,
|
|
and in use on many miles of the nation's electrical network as well
|
|
as at TVA's Wilson and Kentucky Dams, not only eliminates costly
|
|
underground conduit construction, but is easily maintained and
|
|
allows tremendous loads to be transmitted safely and efficiently at
|
|
high voltages.
|
|
|
|
*** diagram notations ***
|
|
|
|
The high-voltage conductors used in conventional three-phase
|
|
power system leave the powerhouse encased in steel pipe filled
|
|
with oil under a pressure of 200 p.s.i. The oil serves as a
|
|
coolant as well as added electrical insulation.
|
|
|
|
Automatic equipment, consisting of pumps and oil reservoir,
|
|
keeps the oil in the pipe under constat pressure regardless of
|
|
expansion or contraction of conductors or pipe.
|
|
|
|
To reduce possible damage caused by oil leaks, pipe is sealed
|
|
off where splices or connections are made. Oil for splice
|
|
chamber by-passes through valve system that automatically cuts
|
|
flow to it if a leak develops.
|
|
|
|
|
|
Page 1
|
|
|
|
|
|
|
|
|
|
|
|
Drawing at right shows how the oil system extends all the way to
|
|
the big porcelain terminal insulators (utilities men call them
|
|
"potheads"), also filled with oil under pressure.
|
|
|
|
The three stranded conductors, each insulated with layers of
|
|
oil-impregnated paper protected by a metal shield, are encased
|
|
in an oil-filled steel pipe protected by a special corrosion-
|
|
resistant coating.
|
|
|
|
Cable lengths up to 4,000 feet.
|
|
Bolted or welded joints every 1,500 to 2,500 feet.
|
|
Joints isolate terminal sections.
|
|
Mechanical sleeves in place of sweated connectors.
|
|
Porcelain high-tension terminals.
|
|
|
|
--------------------------------------------------------------------
|
|
Vangard Notes...
|
|
|
|
The above article is interesting especially for those who might
|
|
be working on their own high voltage experiments using Oudin or
|
|
Tesla type coils. This also applies to electrostatics such as
|
|
might be used in T. T. Brown or Searle type propulsion/lift
|
|
experiments.
|
|
|
|
We have been looking into various ways to increase the current
|
|
levels in conjunction with high pressures. Spark gap quenching
|
|
through the use of pressurized gas containers using nitrogen or
|
|
any other inert gas offers intriguing possibilities.
|
|
|
|
--------------------------------------------------------------------
|
|
|
|
If you have comments or other information relating to such topics
|
|
as this paper covers, please upload to KeelyNet or send to the
|
|
Vangard Sciences address as listed on the first page.
|
|
Thank you for your consideration, interest and support.
|
|
|
|
Jerry W. Decker.........Ron Barker...........Chuck Henderson
|
|
Vangard Sciences/KeelyNet
|
|
|
|
--------------------------------------------------------------------
|
|
If we can be of service, you may contact
|
|
Jerry at (214) 324-8741 or Ron at (214) 242-9346
|
|
--------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Page 2
|
|
|
|
|