US1984396A - Gas cooling device for compressed gas electric circuit breaker silencers - Google Patents

Gas cooling device for compressed gas electric circuit breaker silencers Download PDF

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Publication number
US1984396A
US1984396A US631385A US63138532A US1984396A US 1984396 A US1984396 A US 1984396A US 631385 A US631385 A US 631385A US 63138532 A US63138532 A US 63138532A US 1984396 A US1984396 A US 1984396A
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United States
Prior art keywords
circuit breaker
enclosure
compressed gas
cooling device
silencers
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
US631385A
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English (en)
Inventor
Clerc Andre
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.)
Ateliers de Constructions Electriques de Delle SA
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Individual
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Publication date
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Publication of US1984396A publication Critical patent/US1984396A/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
    • H01H33/58—Silencers for suppressing noise of switch operation

Definitions

  • the present invention remedies these two inconveniences. It consists in disposing in the path of the gases a group of ducts between the contacts and the silencer, and the gases on passing through these ducts abandon a part of their heat. This reduces the volume of the gases as well as their pressure, and consequently increases the efficiency of the silencer as also that of the circuit breaker.
  • the cooling ducts in accordance with this invention preferably communicate with a conduit or chamber at the outlet of which is disposed the silencer.
  • the cooling ducts may be constituted by any solid members, such as for example by a mass of solid or perforated bodies disposed pellmell between two parallel gratings or by a series of tubes with axes parallel to the direction of the flow of the gases which penetrate into them.
  • the cooling ducts will preferably be constituted by a series of very thin metal plates disposed close together, parallel between them selves and to the direction of flow of the gases.
  • the ducts thus formed can be further subdivided on their-outlet side by theuse of further shorter plates intercalated between those referred to above.
  • the silencer is constituted by a mass of metal tubes disposed pell-mell in a chamber placed in front of the cooling ducts, the inlet and outlet sides of said chamber being perforated.
  • FIG. 1 is a sectional view of the apparatus embodying cooling plates
  • Figure 2 is a similar view showing cooling ducts instead of plates.
  • the hot gases of the arc following the direction of the arrow A penetrate by the conduit 1 into the flame cooling device 2 in the ducts of which the gases are cooled and contracted. They then traverse the chamber 5 and the silencer constituted by tubes 3 heaped pell-mell between the two gratings 4 and 4' each made up of a series of parallel plates similar to the plates 2 but of reduced length. Finally the gases pass through the openings in the grating 4 and are evacuated into the open air in the direction indicated by the arrow B. In certain cases one can also bring the grating 2 close up to the grating 4 in such manner as to suppress the chamber 5.
  • the dimensions of the whole device should evidently be such that the resistance to the flow of the gases shall be reduced to a negligible value.
  • a circuit breaker including, relatively movable contacts disposed in an enclosure, and means to blow an are between these contacts by a compressed gas blast travelling through the enclosure, and towards an exhaust passage
  • the combination therewith of metallic walled channels ar ranged in parallel relation to each other and to the direction of blowing in the exhaust passage and adjacent the contacts, and two screens disposed after the channels and defining with the walls of the exhaust passage a space filled with a mass of small metallic tubes, whereby to enable a gas blast travelling through the enclosure to escape to the atmosphere without direction changes by successively traversing the said metallic channels in partial parallel'currents and the interstices between the mass of said tubes.
  • relatively movable contacts disposed in an enclosure means to blow an are between these contacts by a compressed gas blast travelling through the enclosure, parallel metallic walled channels arranged in line with the direction of blowing within the enclosure and next to the contacts, and two screens disposed after the channels and defining with the walls of the enclosure a space filled with a mass of small metallic tubes, the height of these tubes being approximately equal to their outside diameter, whereby to enable a gas blast travelling through the enclosure to escape unhampered to the atmosphere by successively traversing the said parallel metallic channels and the interstices between the mass of said tubes.

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  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
US631385A 1931-10-19 1932-09-01 Gas cooling device for compressed gas electric circuit breaker silencers Expired - Lifetime US1984396A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1984396X 1931-10-19

Publications (1)

Publication Number Publication Date
US1984396A true US1984396A (en) 1934-12-18

Family

ID=7882188

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Application Number Title Priority Date Filing Date
US631385A Expired - Lifetime US1984396A (en) 1931-10-19 1932-09-01 Gas cooling device for compressed gas electric circuit breaker silencers

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US (1) US1984396A (en))
BE (1) BE391540A (en))
FR (1) FR745721A (en))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452953A (en) * 1945-04-06 1948-11-02 Gen Electric Circuit interrupting apparatus
US2486127A (en) * 1944-06-26 1949-10-25 Gen Electric Air blast electric circuit breaker
US2942086A (en) * 1957-03-06 1960-06-21 Allis Chalmers Mfg Co Chimney cooler for air circuit breakers
US3448231A (en) * 1966-11-14 1969-06-03 Gen Electric Electric circuit breaker arc chute with arc discharge filter
US3671697A (en) * 1971-01-07 1972-06-20 S & C Electric Co Switch construction with load break device having a movable slat, a gas expansion chamber and a gas muffler
US4414446A (en) * 1979-10-31 1983-11-08 Societe Anonyme Dite Alsthom-Atlantique Electric arc cooling apparatus for the chimneys of cut-out devices
WO2000034969A1 (de) * 1998-12-10 2000-06-15 Siemens Aktiengesellschaft Elektrischer leistungsschalter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293513A (en) * 1939-10-11 1942-08-18 Gen Electric Electric air circuit breaker

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486127A (en) * 1944-06-26 1949-10-25 Gen Electric Air blast electric circuit breaker
US2452953A (en) * 1945-04-06 1948-11-02 Gen Electric Circuit interrupting apparatus
US2942086A (en) * 1957-03-06 1960-06-21 Allis Chalmers Mfg Co Chimney cooler for air circuit breakers
US3448231A (en) * 1966-11-14 1969-06-03 Gen Electric Electric circuit breaker arc chute with arc discharge filter
US3671697A (en) * 1971-01-07 1972-06-20 S & C Electric Co Switch construction with load break device having a movable slat, a gas expansion chamber and a gas muffler
US4414446A (en) * 1979-10-31 1983-11-08 Societe Anonyme Dite Alsthom-Atlantique Electric arc cooling apparatus for the chimneys of cut-out devices
WO2000034969A1 (de) * 1998-12-10 2000-06-15 Siemens Aktiengesellschaft Elektrischer leistungsschalter

Also Published As

Publication number Publication date
FR745721A (en)) 1933-05-13
BE391540A (en))

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