US1802030A - Insulating layers of different dielectric coefficient - Google Patents

Insulating layers of different dielectric coefficient Download PDF

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Publication number
US1802030A
US1802030A US61601A US6160125A US1802030A US 1802030 A US1802030 A US 1802030A US 61601 A US61601 A US 61601A US 6160125 A US6160125 A US 6160125A US 1802030 A US1802030 A US 1802030A
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US
United States
Prior art keywords
insulating layers
different dielectric
dielectric coefficient
paper
layers
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
US61601A
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English (en)
Inventor
Meurer Hans
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
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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
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Publication of US1802030A publication Critical patent/US1802030A/en
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Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/008—Other insulating material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0208—Cables with several layers of insulating material

Definitions

  • This invention relates to insulating layers of different dielectric co-eflicient for the well known purpose of reducing the part voltages in the layers of higher dielectric co-efiicient 5 in non-homogeneous electric fields whereby an economy is effected in the total insulation if the succession ofthe layers takes place in the direction of decrease of the electric field intensity according to the decrease in the dielectric'co-eflicient.
  • the im regnatedpaper insulation 'of high tension ca les and of their junction boxes and end joints constitutes a particularly important field of application of the invention.
  • insulating layers of di ing paper are produced such a manner that the gradation of the dielectric constant is attained by a cone ondin gradation ofthe specific weight of the insu ating pa r produced by ro ling under pressure or y other pressure means.
  • the accompanying drawing illustrates in crosssection one formof single core cable 40 constructed according to the invention
  • the conductor a is surrounded by a plurality of insulating layers b, c, d;
  • the specific weight of the paper employed in the layer 0 has been increased by rolling under pressure or by other pressure means as compared with the paper employed in the layer d and similarly the s cific weight of the paper em- Bloyed in t e layer 6 has been increased also v pressure with respect to the paper emnloved in the lever 0 rent dielectric-constant contain- What I claim is 2--
  • An electric cable having a graded insulation on the conductor consisting of a plurality of layers of similar paper, the paper forming said layers being compressed to various densities to produce correspondingly different dielectric constants, the dielectric con- "stan ts and the densities of the layers disposed nearest the conductor being the highest and gradually decreasing outwardly from the conductorn.

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  • Laminated Bodies (AREA)
  • Insulating Bodies (AREA)
  • Organic Insulating Materials (AREA)
US61601A 1925-01-27 1925-10-09 Insulating layers of different dielectric coefficient Expired - Lifetime US1802030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF57888D DE486837C (de) 1925-01-27 1925-01-27 Verfahren zur Herstellung isolierender, Papier enthaltender Schichten verschiedener Dielektrizitaetskonstante

Publications (1)

Publication Number Publication Date
US1802030A true US1802030A (en) 1931-04-21

Family

ID=7108392

Family Applications (1)

Application Number Title Priority Date Filing Date
US61601A Expired - Lifetime US1802030A (en) 1925-01-27 1925-10-09 Insulating layers of different dielectric coefficient

Country Status (5)

Country Link
US (1) US1802030A (fr)
AT (1) AT103412B (fr)
CH (1) CH116013A (fr)
DE (1) DE486837C (fr)
FR (1) FR603045A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE948706C (de) * 1951-07-24 1956-09-06 Felten & Guilleaume Carlswerk Elektrisches Hochspannungskabel

Also Published As

Publication number Publication date
CH116013A (de) 1926-08-02
FR603045A (fr) 1926-04-07
DE486837C (de) 1929-11-28
AT103412B (de) 1926-05-25

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