US3848103A - Thermo-siphonic cooling circuit and circuit breaker - Google Patents

Thermo-siphonic cooling circuit and circuit breaker Download PDF

Info

Publication number
US3848103A
US3848103A US00395115A US39511573A US3848103A US 3848103 A US3848103 A US 3848103A US 00395115 A US00395115 A US 00395115A US 39511573 A US39511573 A US 39511573A US 3848103 A US3848103 A US 3848103A
Authority
US
United States
Prior art keywords
air flow
casing
heat exchanger
chamber
power station
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
US00395115A
Other languages
English (en)
Inventor
E Thuries
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.)
Cegelec SA
Delle Alsthom SA
Original Assignee
Cegelec SA
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 Cegelec SA filed Critical Cegelec SA
Application granted granted Critical
Publication of US3848103A publication Critical patent/US3848103A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H01H2009/526—Cooling of switch parts of the high voltage switches

Definitions

  • ABSTRACT Power station switch in which the gas under pressure in the cut-out chamber is made to flow and passes in a radiator type heat exchanger, characterised in that the cold air is made to flow past the radiator type heat exchanger by a static device receiving heated air drawn off from the general cooling circuit within the protec tive casing of the switch.
  • This compressed gas is cooled by a radiator type heat exchanger in which the dissipating of the calories in ensured by the flowing of a fluid distinct from the compressed gas in the cut-out chamber, for example by air set in motion by one or several ventilators generally situated on the outside of a protective casing in which the switch is installed and inside which a general air flow for cooling the power station is produced.
  • ventilators has the drawback of requiring the maintenance of these devices and of their control elements.
  • a static device due to a drawing off of the hot air flowing in the protective casing, a static device makes cold air on the outside of the casing flow in the radiator type heat-exchanger and ensures the cooling of the compressed gas in the cut-out chamber.
  • a power station switch having a high rated current which comprises a cut-out chamber containing a gas under pressure, which is situated in a protective casing inside which a first cut-out chamber cooling air flow is produced and in which the said gas under pressure is made to flow permanently by means outside thecut-out chamber, these means comprising a radiator type heat exchanger situated on the outside of the protective casing and cooled by cold air, forming a second, radiator cooling air flow characterised in that it comprises means for drawing off a portion of the first cooling air flow produced in the protective casing and means for using that drawing off for setting in motion, the said cold air.
  • the portion of cooling air flow produced in the protective casing drawn off for the purpose of setting in motion the cold air is, to great advantage, comprised between one per thousand and ten per cent.
  • FIGURE is a diagrammatic crosssection, in a vertical plane, of a power station switch assembly.
  • the cover 3 is supported by hollow support insulators 5 and 6 which insulate the cover 3 from the protective casing 4.
  • These insulators 5 and 6 are extended by a harness 7 of metal tubes constituting the high-pressure circuit of a radiator type heat exchanger.
  • the tube assembly 7 is arranged in series and its ends are connected to the insulators 5 and 6.
  • the compressed gas ensuring the cut-out of the current in the switch flows in the form of a closed loop inside the cover 3, the insulators 5 and 6 and the tubes 7.
  • the tube harness 7 is arranged inside an enclosure 8 open at both its ends 9 and 10.
  • a pipe 12 In a zone 11, comprised between the tubes 7 and the end 10 and generally having a smaller diameter, like the end 10, than the enclosure assembly 8, enters a pipe 12.
  • the latter directs hot air drawn off from the protective casing 4 towards the end 10 of the enclosure 8, by means of deflector flaps 13.
  • the end 14 of the pipe 12 comprises, preferably, a hot air flow guide element.
  • the operation of the device is as follows.
  • the cut-out chamber cooling air flowing inside the casing 4 and heated by the losses in the conductors l and 2 and in the switch arranged in the cover 3, is divided into two flows: the flow having a greater discharge rate flows in the direction of the arrow 15 and continues to cool the casing, whereas a drawing off current 16, produced by means of the deflector flaps 13, enters the pipe 12 and leaves the latter through the guiding element 14, in the direction 17.
  • siphon effect that hot air draws off the cold air, which crosses through the enclosure 8, entering through the opening 9, in the direction of the arrow, 18 and leaving through the opening 10 in the direction of the arrow 19.
  • the radiator type heat exchanger the air in the enclosure 8 cools the compressed gas, in the cut-out chamber, flowing in the tubes 7.
  • the device for cooling the compressed gas of the switch according-to the invention has the advantage of not comprising any moving part and this simple static device considerably reduces maintenance.
  • a closed cut-out chamber containing a gas under pressure said chamber being situated within a protective casing with a first cooling air flow passing between said chamber and said casing to provide for cooling of said chamber, a radiator type heat exchanger external to said casing and in closed fluid loop connection with said chamber for circulating said gas under pressure therebetween, an enclosure surrounding said radiator type heat exchanger and defining with said heat exchanger a second cooling air flow path passing therethrough and across said heat exchanger to remove heat therefrom, the improvement comprising: means for drawing off a portion of said first air flow from said casing, downstream of the initial contact area of said first cooling air flow with said chamber and after heating thereof, and
  • drawing off means comprises conduit means connecting said casing to said enclosure downstream of said radiator and deflector flap means for controlling the flow area leading from said easing into said conduit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US00395115A 1972-09-08 1973-09-07 Thermo-siphonic cooling circuit and circuit breaker Expired - Lifetime US3848103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7231901A FR2199182B2 (ja) 1972-09-08 1972-09-08

Publications (1)

Publication Number Publication Date
US3848103A true US3848103A (en) 1974-11-12

Family

ID=9104024

Family Applications (1)

Application Number Title Priority Date Filing Date
US00395115A Expired - Lifetime US3848103A (en) 1972-09-08 1973-09-07 Thermo-siphonic cooling circuit and circuit breaker

Country Status (6)

Country Link
US (1) US3848103A (ja)
JP (1) JPS5623251B2 (ja)
CA (1) CA1009696A (ja)
DE (1) DE2343575A1 (ja)
FR (1) FR2199182B2 (ja)
SE (1) SE381533B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6492609B1 (en) 1999-11-08 2002-12-10 Alstom Power station switch with a radiator/heat-exchanger
CN100447920C (zh) * 2004-06-29 2008-12-31 阿雷瓦T&D股份公司 冷却电开关设备的被动冷却装置及带该装置的电开关设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3094556B1 (fr) * 2019-03-25 2021-04-09 Alstom Transp Tech Appareil de commutation pour véhicule et véhicule associé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501812A (en) * 1948-05-13 1950-03-28 American Thermo Tech Corp Space heater
US3214544A (en) * 1961-03-24 1965-10-26 Westinghouse Electric Corp Cooling structures for closed-system gaseous electrical apparatus having terminal bushings
US3221129A (en) * 1960-04-29 1965-11-30 Reyrolle A & Co Ltd Gas-blast circuit breaker of the recirculating gas type
US3407869A (en) * 1967-01-16 1968-10-29 Perkin Elmer Corp Instrument cooling system
US3602856A (en) * 1970-06-04 1971-08-31 Westinghouse Electric Corp Electrical inductive apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501812A (en) * 1948-05-13 1950-03-28 American Thermo Tech Corp Space heater
US3221129A (en) * 1960-04-29 1965-11-30 Reyrolle A & Co Ltd Gas-blast circuit breaker of the recirculating gas type
US3214544A (en) * 1961-03-24 1965-10-26 Westinghouse Electric Corp Cooling structures for closed-system gaseous electrical apparatus having terminal bushings
US3407869A (en) * 1967-01-16 1968-10-29 Perkin Elmer Corp Instrument cooling system
US3602856A (en) * 1970-06-04 1971-08-31 Westinghouse Electric Corp Electrical inductive apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6492609B1 (en) 1999-11-08 2002-12-10 Alstom Power station switch with a radiator/heat-exchanger
CN100447920C (zh) * 2004-06-29 2008-12-31 阿雷瓦T&D股份公司 冷却电开关设备的被动冷却装置及带该装置的电开关设备

Also Published As

Publication number Publication date
DE2343575A1 (de) 1974-03-14
SE381533B (sv) 1975-12-08
CA1009696A (en) 1977-05-03
JPS4992557A (ja) 1974-09-04
JPS5623251B2 (ja) 1981-05-29
FR2199182A2 (ja) 1974-04-05
FR2199182B2 (ja) 1976-10-29

Similar Documents

Publication Publication Date Title
US2176657A (en) Air cooling for thermionic tubes
US4118755A (en) Self-cooled metal-clad switchgear
US3848103A (en) Thermo-siphonic cooling circuit and circuit breaker
GB938165A (en) Electric circuit interrupter
JP4298645B2 (ja) 冷却手段を備えた高圧設備の区間
JP5552304B2 (ja) 遮断弁の助けをかりた高電流断路器の内部のための方法および装置
US3852551A (en) Puffer-type compressed-gas circuit-interrupter
US2761526A (en) Heat exchanger
US4735258A (en) Cooling air treatment device for transmitter valves
US4024365A (en) Compressed-gas multiphase circuit-breaker installation
US3116394A (en) Heater
US3740593A (en) Superconductive magnets used in magnetohydrodynamic devices
US3393729A (en) Heat exchange mantle with interchangeable cartridge means
US3210927A (en) Electro-thermal rockets having improved heat exchangers
US2356261A (en) Refrigeration
US2285504A (en) Rectifier temperature control
US3353371A (en) Dual tube regenerative cryostat
US3489870A (en) Cascaded electric current interrupting device with ionized gas assisting in breakdown and eventual arc extinction
GB1116104A (en) A hermetically sealed transformer
US2953623A (en) Forced convection cooling for isolated phase bus
US2871878A (en) Fluid pressure control system
SU418683A1 (ru) Радиатор для охлаждения приборов
US2904965A (en) Vortex tube with flow control means
US1724758A (en) Thermal relay
GB1322395A (en) Forced-draught heat exchangers