GB1437742A - - Google Patents
Info
- Publication number
- GB1437742A GB1437742A GB2814674A GB2814674A GB1437742A GB 1437742 A GB1437742 A GB 1437742A GB 2814674 A GB2814674 A GB 2814674A GB 2814674 A GB2814674 A GB 2814674A GB 1437742 A GB1437742 A GB 1437742A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sic
- low
- layer
- cable
- core
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
- H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
- H02G15/072—Cable terminating boxes, frames or other structures with devices for relieving electrical stress of the condenser type
-
- 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
- H01B7/0291—Disposition of insulation comprising two or more layers of insulation having different electrical properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/027—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/184—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress
Landscapes
- Cable Accessories (AREA)
- Conductive Materials (AREA)
Abstract
1437742 A high voltage cable KERITE CO 25 June 1974 [27 July 1973] 28146/74 Heading H1A A high voltage cable has multiple layers of insulation with low specific inductive capacity (dielectric constant) and a layer of high specific inductive capacity (SIC) between them. The alternation of low and high can take place one or several times. A metallic shield may be placed around the outermost layer, which may be thinly coated with a semiconductive material. The core may also be coated with semiconductive material. A termination to the cable has a lug on the core a tapered insulation and a cutback in the shield (if present). A cable joint between two such cables uses known joint blocks (Fig. 5, not shown). Preferably the low SIC layer should be at least 5 times thicker than the high SIC layer. Low SIC material has a dielective constant ranging from 2 to 4.5, while that of high SIC material is 10 or greater.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00383323A US3828115A (en) | 1973-07-27 | 1973-07-27 | High voltage cable having high sic insulation layer between low sic insulation layers and terminal construction thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1437742A true GB1437742A (en) | 1976-06-03 |
Family
ID=23512612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2814674A Expired GB1437742A (en) | 1973-07-27 | 1974-06-25 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3828115A (en) |
| BR (1) | BR7404558A (en) |
| DE (1) | DE2436413A1 (en) |
| FR (1) | FR2238999B3 (en) |
| GB (1) | GB1437742A (en) |
| IT (1) | IT1016713B (en) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032381A (en) * | 1974-05-01 | 1977-06-28 | General Cable Corporation | Extruded solid dielectric high voltage cables with multi-layer insulation |
| US3885085A (en) * | 1974-06-11 | 1975-05-20 | Gen Cable Corp | High voltage solid extruded insulated power cables |
| US4361723A (en) * | 1981-03-16 | 1982-11-30 | Harvey Hubbell Incorporated | Insulated high voltage cables |
| US4487996A (en) * | 1982-12-02 | 1984-12-11 | Electric Power Research Institute, Inc. | Shielded electrical cable |
| GB2179196B (en) * | 1985-08-08 | 1989-01-11 | Pirelli General Plc | Electric cables |
| FR2697665B1 (en) * | 1992-10-29 | 1994-12-16 | Alcatel Cable | Anti-shrinkage insulation device, for synthetic insulation power cable. |
| US6340794B1 (en) | 1995-09-06 | 2002-01-22 | Minnesota Mining And Manufacturing Company | Stress control for termination of a high voltage cable |
| EP1016187B1 (en) | 1996-05-29 | 2003-09-24 | Abb Ab | Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor |
| SE9602079D0 (en) | 1996-05-29 | 1996-05-29 | Asea Brown Boveri | Rotating electric machines with magnetic circuit for high voltage and a method for manufacturing the same |
| DE69727508T2 (en) | 1996-05-29 | 2004-12-23 | Abb Ab | ROTATING ELECTRIC MACHINE WITH A HIGH VOLTAGE STATOR WINDING AND ELongated SUPPORT DEVICES THAT SUPPORT THE WINDING AND METHOD FOR PRODUCING SUCH A MACHINE |
| CN1158680C (en) * | 1996-05-29 | 2004-07-21 | Abb股份有限公司 | Transformer/reactor |
| CZ385998A3 (en) * | 1996-05-29 | 1999-06-16 | Abb Ab | Insulated conductor for very high tension and process for producing thereof |
| DE69726267T2 (en) * | 1996-05-29 | 2004-09-09 | Abb Ab | High voltage AC electric machine |
| SE509072C2 (en) | 1996-11-04 | 1998-11-30 | Asea Brown Boveri | Anode, anodizing process, anodized wire and use of such wire in an electrical device |
| SE510422C2 (en) | 1996-11-04 | 1999-05-25 | Asea Brown Boveri | Magnetic sheet metal core for electric machines |
| SE512917C2 (en) | 1996-11-04 | 2000-06-05 | Abb Ab | Method, apparatus and cable guide for winding an electric machine |
| SE515843C2 (en) | 1996-11-04 | 2001-10-15 | Abb Ab | Axial cooling of rotor |
| SE9704413D0 (en) * | 1997-02-03 | 1997-11-28 | Asea Brown Boveri | A power transformer / reactor |
| SE9704412D0 (en) | 1997-02-03 | 1997-11-28 | Asea Brown Boveri | A power transformer / reactor |
| SE9704421D0 (en) | 1997-02-03 | 1997-11-28 | Asea Brown Boveri | Series compensation of electric alternator |
| SE510452C2 (en) | 1997-02-03 | 1999-05-25 | Asea Brown Boveri | Transformer with voltage regulator |
| SE9704423D0 (en) | 1997-02-03 | 1997-11-28 | Asea Brown Boveri | Rotary electric machine with flushing support |
| SE9704427D0 (en) | 1997-02-03 | 1997-11-28 | Asea Brown Boveri | Fastening device for electric rotary machines |
| SE508543C2 (en) | 1997-02-03 | 1998-10-12 | Asea Brown Boveri | Coiling |
| SE9704422D0 (en) | 1997-02-03 | 1997-11-28 | Asea Brown Boveri | End plate |
| SE508544C2 (en) | 1997-02-03 | 1998-10-12 | Asea Brown Boveri | Method and apparatus for mounting a stator winding consisting of a cable. |
| SE513083C2 (en) | 1997-09-30 | 2000-07-03 | Abb Ab | Synchronous compensator system and the use of such and phase compensation method in a high voltage field |
| SE513555C2 (en) | 1997-11-27 | 2000-10-02 | Abb Ab | Method of applying a pipe means in a space of a rotating electric machine and rotating electric machine according to the method |
| GB2331858A (en) | 1997-11-28 | 1999-06-02 | Asea Brown Boveri | A wind power plant |
| EP1042853A2 (en) | 1997-11-28 | 2000-10-11 | Abb Ab | Method and device for controlling the magnetic flux with an auxiliary winding in a rotating high voltage electric alternating current machine |
| SE516002C2 (en) | 2000-03-01 | 2001-11-05 | Abb Ab | Rotary electric machine and method of making a stator winding |
| US6885273B2 (en) | 2000-03-30 | 2005-04-26 | Abb Ab | Induction devices with distributed air gaps |
| SE516442C2 (en) | 2000-04-28 | 2002-01-15 | Abb Ab | Stationary induction machine and cable therefore |
| EP3705515A1 (en) | 2019-03-08 | 2020-09-09 | Tyco Electronics UK Ltd. | Elastomeric material |
| CN110672644B (en) * | 2019-09-04 | 2022-03-25 | 国网电力科学研究院武汉南瑞有限责任公司 | Cable buffer layer state evaluation method and system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1458803A (en) * | 1922-02-06 | 1923-06-12 | Boston Insulated Wire And Cabl | Insulated electric wire |
| AT112537B (en) * | 1926-07-31 | 1929-03-11 | Victor Dr Planer | Electric multi-conductor cable for high voltage. |
| GB349289A (en) * | 1929-05-28 | 1931-05-28 | Siemens Ag | Improvements in or relating to paper-insulated high tension electric cables |
| FR859507A (en) * | 1939-05-22 | 1940-12-20 | Signaux Entr Electriques | Improvements to cables and electric wires |
| US2782248A (en) * | 1951-06-01 | 1957-02-19 | Gen Electric | Electrical cable structure |
| DE1198886B (en) * | 1961-08-22 | 1965-08-19 | Siemens Ag | Layered high-voltage insulation filled with a liquid or gaseous medium for a coaxial electrical conductor |
| US3287489A (en) * | 1964-09-08 | 1966-11-22 | Kerite Company | Insulated high voltage cables |
| US3585274A (en) * | 1969-09-15 | 1971-06-15 | Minnesota Mining & Mfg | Relief of dielectric stress in high voltage cable connections |
-
1973
- 1973-07-27 US US00383323A patent/US3828115A/en not_active Expired - Lifetime
-
1974
- 1974-06-03 BR BR4558/74A patent/BR7404558A/en unknown
- 1974-06-25 GB GB2814674A patent/GB1437742A/en not_active Expired
- 1974-07-26 IT IT69392/74A patent/IT1016713B/en active
- 1974-07-26 FR FR7426013A patent/FR2238999B3/fr not_active Expired
- 1974-07-29 DE DE2436413A patent/DE2436413A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| IT1016713B (en) | 1977-06-20 |
| DE2436413A1 (en) | 1975-02-06 |
| FR2238999B3 (en) | 1977-05-20 |
| BR7404558A (en) | 1976-02-10 |
| FR2238999A1 (en) | 1975-02-21 |
| US3828115A (en) | 1974-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |