GB1534494A - Installation for cooling electric cables - Google Patents

Installation for cooling electric cables

Info

Publication number
GB1534494A
GB1534494A GB16684/77A GB1668477A GB1534494A GB 1534494 A GB1534494 A GB 1534494A GB 16684/77 A GB16684/77 A GB 16684/77A GB 1668477 A GB1668477 A GB 1668477A GB 1534494 A GB1534494 A GB 1534494A
Authority
GB
United Kingdom
Prior art keywords
cables
installation
bellows
pumped
electric cables
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
GB16684/77A
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.)
Industrie Pirelli SpA
Pirelli and C SpA
Original Assignee
Industrie Pirelli SpA
Pirelli SpA
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 Industrie Pirelli SpA, Pirelli SpA filed Critical Industrie Pirelli SpA
Publication of GB1534494A publication Critical patent/GB1534494A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
    • H02G15/26—Expansion vessels; Locking heads; Auxiliary pipe-lines

Landscapes

  • Reciprocating Pumps (AREA)
  • Transformer Cooling (AREA)

Abstract

1534494 Reciprocating pumps INDUSTRIE PIRELLI SpA 21 April 1977 [7 May 1976] 16684/77 Heading F1A In an installation for pumping cooling oil through electric cables a respective pumping chamber is connected to each end of each cable together with respective solenoid valves and accumulator reservoirs, Fig. 1 (not shown), and the pumps at the opposite ends of the cables are operated alternately with the valving set so that oil is first pumped from one end of the cables to the other and into the respective reservoirs, and then pumped in the reverse direction. Each pump comprises a plurality of bellows 49 defining respective pumping chambers 46, each bellows being actuated hydraulically by a respective piston 51 against springs 59, 54 and having inlet and outlet check-valves M', M. Pistons 51 of each pump are arranged radially about a drive eccentric mechanism, Fig. 4 (not shown).
GB16684/77A 1976-05-07 1977-04-21 Installation for cooling electric cables Expired GB1534494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23048/76A IT1123907B (en) 1976-05-07 1976-05-07 ELECTRIC CABLES COOLING SYSTEM

Publications (1)

Publication Number Publication Date
GB1534494A true GB1534494A (en) 1978-12-06

Family

ID=11203235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16684/77A Expired GB1534494A (en) 1976-05-07 1977-04-21 Installation for cooling electric cables

Country Status (11)

Country Link
AR (1) AR212037A1 (en)
AT (1) AT349556B (en)
AU (1) AU510881B2 (en)
BE (1) BE854263A (en)
BR (1) BR7702862A (en)
CA (1) CA1081810A (en)
DE (1) DE2720021C2 (en)
ES (1) ES458683A1 (en)
GB (1) GB1534494A (en)
IT (1) IT1123907B (en)
ZA (1) ZA772483B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE704761A (en) * 1966-12-16 1968-02-15
FR2129970B1 (en) * 1971-03-24 1974-05-31 Comp Generale Electricite

Also Published As

Publication number Publication date
AU2468077A (en) 1978-11-02
AU510881B2 (en) 1980-07-17
DE2720021A1 (en) 1977-11-24
ZA772483B (en) 1978-03-29
BE854263A (en) 1977-09-01
ATA302577A (en) 1978-09-15
BR7702862A (en) 1978-04-04
ES458683A1 (en) 1978-02-16
AR212037A1 (en) 1978-04-28
AT349556B (en) 1979-04-10
DE2720021C2 (en) 1986-10-23
IT1123907B (en) 1986-04-30
CA1081810A (en) 1980-07-15

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940421