(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