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GB1368497A - Cooling electric power cables - Google Patents

Cooling electric power cables

Info

Publication number
GB1368497A
GB1368497A GB4656471A GB4656471A GB1368497A GB 1368497 A GB1368497 A GB 1368497A GB 4656471 A GB4656471 A GB 4656471A GB 4656471 A GB4656471 A GB 4656471A GB 1368497 A GB1368497 A GB 1368497A
Authority
GB
United Kingdom
Prior art keywords
reservoir
tube
refrigerant
cooled
condenser
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
Application number
GB4656471A
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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
Priority claimed from JP9980570U external-priority patent/JPS5219188Y1/ja
Priority claimed from JP10427070A external-priority patent/JPS519465B1/ja
Priority claimed from JP2900871A external-priority patent/JPS5241472B1/ja
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of GB1368497A publication Critical patent/GB1368497A/en
Expired legal-status Critical Current

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
    • H02G15/34—Cable fittings for cryogenic cables
    • 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • 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
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid

Landscapes

  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Gas Or Oil Filled Cable Accessories (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

1368497 Electric cables SUMITOMO ELECTRIC INDUSTRIES Ltd 6 Oct 1971 [7 Oct 1970 26 Nov 1970 1 May 1971] 46564/71 Headings F4H and F4U [Also in Division H1] A section of a power cable 21 is cooled by the evaporation of a liquid refrigerant in a duct along the length of the cable. Liquid flows under gravity from a reservoir 26 through a tube 27 to a joint 23 at one end of the section, heat generated by the cable causes evaporation of this liquid, and the vapour so formed passes through a joint 22 into a tube 24, which is shorter than tube 27 and which leads back to reservoir 26 and a condenser 25. The refrigerant is preferably a wholly or partly halogenated hydrocarbon, examples of which are given. The condenser 25 and reservoir 26 may be naturally air-cooled, forced air-cooled, or water-cooled. The volume of tube 27 may be large (Fig. 6, not shown) in which case it is slightly inclined and the reservoir is omitted. In Fig. 7, (not shown), the tube 27 is surrounded by a cooling water tube (28<SP>1</SP>) and both the reservoir and condenser are omitted. Another embodiment (Fig. 9, not shown) includes refrigerant tubes (102, 103) and a natural air-cooling unit (109) with a valve (108) which is actuated by the pressure in the reservoir (104) and opens or shuts the condenser pipe. In further modifications (Figs. 10-12, not shown) a pressure-sensitive device respectively controls a fan (111) which force-cools the cooling unit, a damper (117) which controls the natural air-cooling of the unit, and a heater (118) in the reservoir. In the embodiment of Fig. 13 (not shown), heat is introduced into a heating tube (121) in the shorter refrigerant tube (103) to increase the flow of refrigerant. To maintain the pressure in the reservoir above a predetermined valve, the embodiment of Fig. 14 (not shown), includes a tank (122) of a gas, e.g. nitrogen, which is different from the refrigerant and is not condensed under operating conditions.
GB4656471A 1970-10-07 1971-10-06 Cooling electric power cables Expired GB1368497A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9980570U JPS5219188Y1 (en) 1970-10-07 1970-10-07
JP10427070A JPS519465B1 (en) 1970-11-26 1970-11-26
JP2900871A JPS5241472B1 (en) 1971-05-01 1971-05-01

Publications (1)

Publication Number Publication Date
GB1368497A true GB1368497A (en) 1974-09-25

Family

ID=27286397

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4656471A Expired GB1368497A (en) 1970-10-07 1971-10-06 Cooling electric power cables

Country Status (3)

Country Link
DE (1) DE2150113C3 (en)
FR (1) FR2110285B1 (en)
GB (1) GB1368497A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1024572A2 (en) * 1998-11-06 2000-08-02 NKT Cables GmbH Electromagnetic shield for a power cable
EP2731112A1 (en) 2012-11-07 2014-05-14 Prysmian S.p.A. Electric cable for solar plant generating electrical energy and thermal energy and plant comprising it
WO2014127839A1 (en) 2013-02-25 2014-08-28 Prysmian S.P.A. Fire resistant and flame retardant cable system
GB2522428A (en) * 2014-01-23 2015-07-29 Onesubsea Ip Uk Ltd Heat pipe cooling of power cables

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2404720C3 (en) * 1974-02-01 1983-12-29 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Water-cooled high voltage power cable
US4112247A (en) * 1976-09-20 1978-09-05 Western Electric Company, Inc. Gas feeder pipe assembly including electrical conductors
JPS5425486A (en) * 1977-07-28 1979-02-26 Sumitomo Electric Ind Ltd Natural circulation type evaporation-cooling cable duct
WO2001001423A1 (en) * 1999-06-28 2001-01-04 Nkt Research A/S Method for protection of a current-carrying cable against overheating and cables
DE102014015776B4 (en) * 2014-10-27 2016-08-04 nkt cables GmbH & Co.KG Cable cooling system for buried high and extra high voltage cables
CA3055897A1 (en) 2017-03-09 2018-09-13 Zuta-Car Ltd. Systems and methods for thermal regulation
DE102023129059A1 (en) 2022-10-21 2024-05-02 Hofer Powertrain Innovation Gmbh Electric machine with evaporative cooling, evaporative cooling system and evaporative cooling process
CN118136336A (en) * 2024-03-28 2024-06-04 江苏特飞光电科技有限公司 Combined cooling device for wire and cable processing and cooling method thereof
CN118588370A (en) * 2024-06-28 2024-09-03 江苏赛特电气有限公司 Flame retardant B1 grade fire resistant control cable for rail transit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1024572A2 (en) * 1998-11-06 2000-08-02 NKT Cables GmbH Electromagnetic shield for a power cable
EP1024572A3 (en) * 1998-11-06 2001-06-27 NKT Cables GmbH Electromagnetic shield for a power cable
EP2731112A1 (en) 2012-11-07 2014-05-14 Prysmian S.p.A. Electric cable for solar plant generating electrical energy and thermal energy and plant comprising it
US9595370B2 (en) 2012-11-07 2017-03-14 Prysmian S.P.A. Electric cables for solar plants generating electrical and thermal energy, and plants comprising the electrical cables
WO2014127839A1 (en) 2013-02-25 2014-08-28 Prysmian S.P.A. Fire resistant and flame retardant cable system
GB2522428A (en) * 2014-01-23 2015-07-29 Onesubsea Ip Uk Ltd Heat pipe cooling of power cables
GB2522428B (en) * 2014-01-23 2021-01-20 Onesubsea Ip Uk Ltd Heat pipe cooling of power cables

Also Published As

Publication number Publication date
FR2110285B1 (en) 1974-03-29
DE2150113A1 (en) 1972-04-13
DE2150113B2 (en) 1974-07-04
DE2150113C3 (en) 1975-02-20
FR2110285A1 (en) 1972-06-02

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years