US2731105A - Electric apparatus, such as liquid immersed switches, comprising means for discharging gases produced during operation of the apparatus - Google Patents

Electric apparatus, such as liquid immersed switches, comprising means for discharging gases produced during operation of the apparatus Download PDF

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Publication number
US2731105A
US2731105A US45158754A US2731105A US 2731105 A US2731105 A US 2731105A US 45158754 A US45158754 A US 45158754A US 2731105 A US2731105 A US 2731105A
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United States
Prior art keywords
casing
liquid
chamber
space
passage
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Expired - Lifetime
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English (en)
Inventor
Nijland Hendrik A Hidde
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COQ NV
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COQ NV
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Publication date
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Publication of US2731105A publication Critical patent/US2731105A/en
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    • 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
    • H01H33/55—Oil reservoirs or tanks; Lowering means therefor
    • 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
    • H01H2033/568—Gas reservoirs with overpressure release, e.g. rupture membranes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86292—System with plural openings, one a gas vent or access opening
    • Y10T137/86324—Tank with gas vent and inlet or outlet

Definitions

  • ELECTRIC APPARATUS SUCH AS LIQUID IMMERSED SWITCHES, COMPRISING MEANS FOR DISCHARGING GASES PRODUCED DURING OPERATION 0F THE APPARATUS Filed Aug. 23. 1954 United States Patent O ELECTRIC APPARATUS, SUCH AS LIQUID IM- MERSED SWITCHES, COMPRISING MEANS FCR DISCHARGING GASES PRODUCED DURING OPERATION F THE APPARATUS Hendrik A. Hidde Nijland, Laren, Netherlands, assigner to N. V. COQ, Utrecht, Netherlands, a company ot the Netherlands Application August 23, 1954, Serial No. 451,587
  • the invention relates to an electric apparatus, such as a liquid immersed switch or circuit breaker, whose live parts are accommodated in an insulating liquid such as mineral oil contained in a substantially closed casing provided, in or close to its top wall, with an opening for discharging gases produced, for instance, during a switching operation.
  • an electric apparatus such as a liquid immersed switch or circuit breaker, whose live parts are accommodated in an insulating liquid such as mineral oil contained in a substantially closed casing provided, in or close to its top wall, with an opening for discharging gases produced, for instance, during a switching operation.
  • the invention contemplates providing an electric apparatus with a device adapted to discharge the gases produced, for instance, during a switching operation, but to withhold and to return to the casing, the liquid taken along by said gases.
  • the vent in the wall of the casing communicates with the upper end of a chamber provided within the casing and enclosing a great number of baffling surfaces formed by bale plates, a filling of metal chips, Raschig rings, marbles or like bodies, and in that the lower end of said chamber communicates with the liquid space of the casing not only, on an upper level, through a passage of relatively great cross sectional area for the discharge of gases from said liquid space, but also, on a lower level, through a passage having a relatively small cross sectional area for discharging liquid from said chamber.
  • the device for separating the liquid from the gases may be so arranged that the chamber for receiving the baffling means is accommodated in the inner one of two concentric suitably spaced tubes, the upper ends of said tubes being secured to a cap connected to the top wall of the casing and provided with a passage opening both into the space outside the casing and into the upper end of said chamber, the bottom ends of said tubes being closed by a plug, the lower end of said chamber comiice municating with the annular space intermediate said tubes, and said annular space communicating with the liquid space of the casing both through a plurality of apertures in or close to said cap and through a narrow aperture at or close to its lower end.
  • Fig. l is a vertical sectional view of part of the top wall of the casing of an electric liquid immersed switch provided with a liquid separator in accordance with the invention.
  • Fig. 2 is an elevational section, drawn to a reduced scale, of the said switch provided with the separator illustrated in Fig. l.
  • 1 is the casing of an electric immersed switch, comprising stationary contacts 2, 3 and a movable contact 4 cooperating therewith.
  • the casing is closed by a cover 5 and filled with mineral oil, whose surface is indicated by 6.
  • the separator 7 Suspended from the cover, which is provided with a vent passage, is the separator 7 partly irnmersed in the liquid.
  • the separator comprises two concentric, suitably spaced tubes 8, 9 whose upper ends are fixed to a cap 10 secured, through a screw 11 having a central bore 12, to the cover 5 of the casing 1.
  • the lower ends of the tubes are closed by a plug 13, which extends upwards to a relatively high level into the inner tube 8 and which is secured to the outer tube 9 by means of a conical pin 14.
  • the plug 13 is provided with a central passage 15 communicating at its lower end, through lateral passages 16, with the lower end of the annular space 17 between the tubes 8 and 9.
  • the upper end of the said space 17 communicates, through a circular series of holes 18 in the top wall of the cap 10, with the space 19 above the surface 6 of the liquid in the casing 1.
  • the wall of the tube 9 is provided with a nipple 20 having a comparatively narrow passage 21.
  • the cap 10 accommodates a relatively small chamber 22 communicating at its top with the bore 12 of the screw 11, and at its lower end, through a relatively nar row passage 23, with the chamber 24 enclosed by the tube 8. Both chambers 22 and 24 are iilled with metal chips.
  • the improved gas venting and liquid separating device which comprises a vent in the casing wall above the normal level of the liquid, a relatively small chamber within the casing having a space therewithin communicating with the vent, said chamber having its lower end immersed in the liquid, gas permeable means in the chamber having a large number of baffle surfaces, a first passage in the chamber connecting the bottom of the bathe-containing space therein to the space in the casing above the normal liquid level, and a second passage, of smaller eiiective cross sectional area than the first passage, connecting the bottom of the bathe-containing space in the chamber to the space in the casing below the normal liquid level therein.
  • the chamber enclosing the baffle means is an inner tube disposed with clearance in a second, larger outer tube, the upper ends of the tubes eure secured to a cap connected to the top of the casing, the cap has a vent-providing opening therethrough connecting the upper end of the space in the chamber to the atmosphere, and thc space between the tubes constitutes a portion of the passage connecting the space in the casing above the normal level of the liquid with tnc space within the chamber.
  • the improved gas venting and liquid separating device which comprises a vent provided in an upper portion or" the wall o the casing, an inner tube enclosing a space extending both above and below the normal liquid level in the casing and communicating at its upper end with said vent only, gas baiing parts contained in said space, an outer tube surrounding said inner tube and being spaced therefrom by an annular space, said annular space opening at its upper end above the normal liquid level into the casing by means of a first aperture and at its lower end below said level both by means of a second aperture into the space confined by the first tube and by means of a third aperture into the liquid body outside the outer tube, said third aperture being smaller in comparison with both said first and second apertures and the volume of all spaces contained within the outer tube below the normal liquid level being smaller than that of

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
US45158754 1953-08-24 1954-08-23 Electric apparatus, such as liquid immersed switches, comprising means for discharging gases produced during operation of the apparatus Expired - Lifetime US2731105A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL180844 1953-08-24

Publications (1)

Publication Number Publication Date
US2731105A true US2731105A (en) 1956-01-17

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ID=19750621

Family Applications (1)

Application Number Title Priority Date Filing Date
US45158754 Expired - Lifetime US2731105A (en) 1953-08-24 1954-08-23 Electric apparatus, such as liquid immersed switches, comprising means for discharging gases produced during operation of the apparatus

Country Status (6)

Country Link
US (1) US2731105A (cg-RX-API-DMAC7.html)
BE (1) BE522785A (cg-RX-API-DMAC7.html)
DE (1) DE1015091B (cg-RX-API-DMAC7.html)
FR (1) FR1083833A (cg-RX-API-DMAC7.html)
GB (1) GB751324A (cg-RX-API-DMAC7.html)
NL (1) NL78582C (cg-RX-API-DMAC7.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193709A (en) * 1992-01-15 1993-03-16 Brassell Gilbert W Filter for hazardous waste containers
US20070042704A1 (en) * 2005-08-17 2007-02-22 Adc Telecommunications, Inc. Tubular membrane vent
CN104137187A (zh) * 2012-01-26 2014-11-05 阿海珐有限公司 用于气密地封装燃料棒或燃料棒区段的容器、装置和方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1621026A (en) * 1923-05-24 1927-03-15 Westinghouse Electric & Mfg Co Separating device for circuit interrupters
US2000862A (en) * 1931-05-14 1935-05-07 Allis Chalmers Mfg Co Unidirectional breather
US2195565A (en) * 1934-06-13 1940-04-02 Bullard Co Air purifier
US2557557A (en) * 1948-03-23 1951-06-19 Remco Inc Refrigerant drier-filter unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536852A (en) * 1923-01-02 1925-05-05 Gen Electric Electric switch
US1593405A (en) * 1924-05-27 1926-07-20 Gen Electric Fluid-break switch
DE573181C (de) * 1929-07-14 1933-03-30 Siemens Schuckertwerke Akt Ges Vorrichtung an OElschaltern zur Verhinderung des OElauswurfs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1621026A (en) * 1923-05-24 1927-03-15 Westinghouse Electric & Mfg Co Separating device for circuit interrupters
US2000862A (en) * 1931-05-14 1935-05-07 Allis Chalmers Mfg Co Unidirectional breather
US2195565A (en) * 1934-06-13 1940-04-02 Bullard Co Air purifier
US2557557A (en) * 1948-03-23 1951-06-19 Remco Inc Refrigerant drier-filter unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193709A (en) * 1992-01-15 1993-03-16 Brassell Gilbert W Filter for hazardous waste containers
US20070042704A1 (en) * 2005-08-17 2007-02-22 Adc Telecommunications, Inc. Tubular membrane vent
US7585211B2 (en) * 2005-08-17 2009-09-08 Adc Telecommunications, Inc. Tubular membrane vent
CN104137187A (zh) * 2012-01-26 2014-11-05 阿海珐有限公司 用于气密地封装燃料棒或燃料棒区段的容器、装置和方法

Also Published As

Publication number Publication date
GB751324A (en) 1956-06-27
DE1015091B (de) 1957-09-05
NL78582C (cg-RX-API-DMAC7.html) 1900-01-01
BE522785A (cg-RX-API-DMAC7.html) 1900-01-01
FR1083833A (fr) 1955-01-12

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