US1750111A - High-tension cable - Google Patents

High-tension cable Download PDF

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Publication number
US1750111A
US1750111A US348089A US34808929A US1750111A US 1750111 A US1750111 A US 1750111A US 348089 A US348089 A US 348089A US 34808929 A US34808929 A US 34808929A US 1750111 A US1750111 A US 1750111A
Authority
US
United States
Prior art keywords
cable
conductor
pipe
sheath
insulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US348089A
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English (en)
Inventor
Mahlke Paul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Felten and Guilleaume Carlswerk AG
Original Assignee
Felten and Guilleaume Carlswerk AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Felten and Guilleaume Carlswerk AG filed Critical Felten and Guilleaume Carlswerk AG
Application granted granted Critical
Publication of US1750111A publication Critical patent/US1750111A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/06—Gas-pressure cables; Oil-pressure cables; Cables for use in conduits under fluid pressure

Definitions

  • the insulation In high tension cables of the constructional form mostly used at the present time the insulation consists of layers of paper, which are impregnated with oil or a mixture of oils and resins.
  • the object of the present invention is to provide an underground conductor for very high voltages, the construction of which is a combination of several of the cable constructions as described above.-.
  • the copper conductor a (compare Figs. 1 and 2) is surrounded by a high quality layered insulation 6 which preferably consists of layers of paper soaked with oil and resin. In these layers conducting layers 9 may be inserted.
  • the layered insulation is surrounded by a metal sheath 0 (for instance a lead sheath).
  • the lead cable thus formed is held by distance pieces f in a tube d, over which a metallic wire braiding 6 may be placed.
  • the space k may be filled with oil or air (both of which may e under pressure), with compound or with some other insulating but not rigid substance.
  • the potential of the lead sheath 0 .and that of any conducting insertion or insertions is influenced in such a manner that the inner layers of insertion have a lower gradient than corresponds to the natural course of the voltage determined by the load distribution.
  • the superposed voltage of the lead sheath (and'in some cases of the conducting insertion) may for lnstance be taken by ta ping from the working transformer t, as is s iown in Fig. 1.
  • the tubes may be made of hard paper, porcelain, glazed earthenware, some otherinsulating material or of metal (for instance iron). When metallized tubes are used, the metal wire braiding 6 may be omitted.
  • the outer metallic sheaths d or e of the single conductor cable shown in the drawing would in most cases, namely in multi-conductor systems, have to be connected together at short intervals. Whether a single conducting insertion is used within the layered insulation or instead of one insertion a number of insertions, depends on the height of the voltage.
  • Fig. 3 shows a constructional example of a distance piece If This distance piece is made in two pieces and its inner edge is serrated for allowing the insulating material to pass through.
  • the lead cable is first laid in the cable conduit, the insulatingor metal pipes are slipped over the lead cable and the latter is thereupon brought into its central position within the pipes by means of the distance pieces.
  • the pipe connections are thereupon made and the ipes filled with the insulatin substance or instance compressed a1r, oil or compound).
  • An underground conductor for very high voltages comprising in combination a cable consisting of a conductor, layered insulation on the conductor, a metal sheath on the said layered insulation, a pipe surrounding the said cable and distance pieces between the metal sheath of the cable and the pipe for holding the cable centrally in the said pipe, as and for the purpose set forth.
  • An underground conductor for very high voltages comprising in combination a cable consisting of a conductor, layered insulation on the conductor, a metal sheath on the said layered insulation, a pipe surrounding the said cable, distance pieces between the metal sheath of the cable and the pipe for holding the cable centrally in-the said pipe and an elastic medium for filling the space between the metal sheath of the cable and the pipe, as and for the purpose set forth.
  • An underground conductor for very high voltages comprising in combination a cable consisting of a conductor, layered insulation on the conductor, a metal sheath on the said layered insulation, a pipe surrounding the said cable, distance pieces between the metal sheath of the cable and the pipe for holding the cable centrally in the said pipe and an elastic medium under pressure for filling the space between the metal sheath of the cable and the pipe, as and for the purpose set forth.

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  • Cable Accessories (AREA)
  • Insulated Conductors (AREA)
US348089A 1928-03-22 1929-03-18 High-tension cable Expired - Lifetime US1750111A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE308349X 1928-03-22

Publications (1)

Publication Number Publication Date
US1750111A true US1750111A (en) 1930-03-11

Family

ID=6121692

Family Applications (1)

Application Number Title Priority Date Filing Date
US348089A Expired - Lifetime US1750111A (en) 1928-03-22 1929-03-18 High-tension cable

Country Status (4)

Country Link
US (1) US1750111A (enrdf_load_stackoverflow)
FR (1) FR671853A (enrdf_load_stackoverflow)
GB (1) GB308349A (enrdf_load_stackoverflow)
NL (1) NL25755C (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915719A (en) * 1954-03-04 1959-12-01 Siemens Ag Junction and terminal device for laminated high-frequency conductors
US3319037A (en) * 1961-10-27 1967-05-09 North American Aviation Inc Induction heating means
US4346256A (en) * 1980-04-01 1982-08-24 Kobe, Inc. Conduit in supplying electrical power and pressurized fluid to a point in a subterranean well
US5894104A (en) * 1997-05-15 1999-04-13 Schlumberger Technology Corporation Coax-slickline cable for use in well logging
US5906242A (en) * 1997-06-03 1999-05-25 Camco International, Inc. Method of suspending and ESP within a wellbore

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2093261B (en) * 1981-02-13 1984-11-28 Pirelli General Plc Electric cable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915719A (en) * 1954-03-04 1959-12-01 Siemens Ag Junction and terminal device for laminated high-frequency conductors
US3319037A (en) * 1961-10-27 1967-05-09 North American Aviation Inc Induction heating means
US4346256A (en) * 1980-04-01 1982-08-24 Kobe, Inc. Conduit in supplying electrical power and pressurized fluid to a point in a subterranean well
US5894104A (en) * 1997-05-15 1999-04-13 Schlumberger Technology Corporation Coax-slickline cable for use in well logging
US5906242A (en) * 1997-06-03 1999-05-25 Camco International, Inc. Method of suspending and ESP within a wellbore

Also Published As

Publication number Publication date
NL25755C (enrdf_load_stackoverflow)
FR671853A (fr) 1929-12-19
GB308349A (en) 1930-04-10

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