US3218422A - Compressed gas circuit breaker having a spherical metal reservoir forming part of an arcing gap - Google Patents

Compressed gas circuit breaker having a spherical metal reservoir forming part of an arcing gap Download PDF

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Publication number
US3218422A
US3218422A US293073A US29307363A US3218422A US 3218422 A US3218422 A US 3218422A US 293073 A US293073 A US 293073A US 29307363 A US29307363 A US 29307363A US 3218422 A US3218422 A US 3218422A
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US
United States
Prior art keywords
reservoir
circuit breaker
compressed gas
gas circuit
arcing gap
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
US293073A
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English (en)
Inventor
Billon Gerard
Henry Jean-Claude
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin 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 Merlin Gerin SA filed Critical Merlin Gerin SA
Application granted granted Critical
Publication of US3218422A publication Critical patent/US3218422A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/04—Non-resonant antennas, e.g. travelling-wave antenna with parts bent, folded, shaped, screened or electrically loaded to obtain desired phase relation of radiation from selected sections of the antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/10—Logperiodic antennas

Definitions

  • the level of resistance to impact waves between the entry and the outlet of a circuit breaker depends on the polarity of the wave and on the side where the wave is applied, because the electric fields are very different from the uniform fields.
  • the spherical metallic reservoir which contains compressed gas constitutes one electrode of a spark gap having a very small flash-over delay and shunting the interrupting chamber on the outside.
  • the interrupting period is thus shunted by a spark gap between spheres having a very small flash-over delay and whose operation is to a very large degree independent of the polarity of the excess voltage wave and of the side where this wave is applied.
  • the spark gap thus formed may be adjusted to a value which is smaller than the level of the interrupting period and the insulating level between the entry and the outlet is defined precisely and may be adjusted without difficulty to the lightning arrester devices which protect the entire installation.
  • FIGURE 1 is a side elevation of the circuit breaker according to the invention in which a single interrupting chamber is supported by the gas reservoir;
  • FIGURE 2 is a side elevation of the circuit breaker according to the invention in which two parallel interrupting chambers are supported by the gas reservoir;
  • FIGURE 3 is a side elevation of the circuit breaker according to the invention in which two parallel aligned interrupting chambers are supported by the gas reservoir.
  • FIGURE 1 of the drawing shows a circuit breaker in which the compressed gas reservoir 11 is spherical and supports an interrupting chamber 12 in which the main contacts are located.
  • the reservoir is of a metallic material and constitutes one of the two poles of the circuit breaker.
  • the other pole 13 is electrically connected to a sphere 14, shown as substantially smaller than the reservoir 11, by means of an electrical connection 15.
  • the spark gap is constituted of the spheres 11 and 14 and its flash-over voltage may be defined with great precision. This voltage is substantially the same for the two polarities of impact waves and the flash-over delay is very small and in any case well below that of a horn gap or needlepoint gap.
  • the spherical metallic reservoir 11a supports two interrupting chambers 12a and 12b which are parallel but their axes are ofiset one with respect to the other.
  • the terminals 13a and 1312 are connected to the spheres 14a and 14b by electrical connections 15a and 15b, all respectively.
  • the chamber 12a is thus protected by the spark gap 14a-11a and chamber 12b is protected by the spark gap 14b-11a.
  • the reservoir 11b supports two chambers 12c and 12d whose longitudinal axes coincide.
  • the terminals 13c and 13d are connected to the spheres 14c and 14d by connections 15c and 15d, all .respectively, in a manner analogous to that of FIGURE 2 described above.
  • spherical electrodes 14, 14a, 14b, 14c, 14d may be replaced by electrodes which have a dilferent profile and which may be especially designed with a view to obtaining a uniform electric field providing a small flash-over delay and a negligible polarity efiect.
  • a substantially spherical metallic reservoir containing compressed gas at least one insulator supported by said reservoir and defining an interrupting chamber having two poles, an electrode disposed in spaced relationship to and externally of said reservoir, said reservoir being electrically connected to one pole of said chamber and said electrode being electrically connected to the other pole of said chamber, said spherical reservoir and said electrode forming an arcing gap having a short flash-over delay.

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  • Circuit Breakers (AREA)
  • Particle Accelerators (AREA)
US293073A 1962-07-10 1963-07-05 Compressed gas circuit breaker having a spherical metal reservoir forming part of an arcing gap Expired - Lifetime US3218422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR903602A FR1336747A (fr) 1962-07-10 1962-07-10 Perfectionnement aux disjoncteurs à gaz comprimé

Publications (1)

Publication Number Publication Date
US3218422A true US3218422A (en) 1965-11-16

Family

ID=8782934

Family Applications (1)

Application Number Title Priority Date Filing Date
US293073A Expired - Lifetime US3218422A (en) 1962-07-10 1963-07-05 Compressed gas circuit breaker having a spherical metal reservoir forming part of an arcing gap

Country Status (5)

Country Link
US (1) US3218422A (fr)
CH (1) CH393478A (fr)
DE (1) DE1264566B (fr)
FR (1) FR1336747A (fr)
GB (2) GB976870A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450946A (en) * 1967-04-24 1969-06-17 Nasa Protective circuit of the spark gap type
US20140168832A1 (en) * 2012-12-18 2014-06-19 Ronald Dittrich X-Ray Tube

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155841A (en) * 1937-10-16 1939-04-25 Ohio Brass Co Protective gap

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE394126C (de) * 1924-04-14 Balt Mfg Company Selbsttaetiger Stromunterbrecher mit einem leicht verdampfbaren Elektrolyten und einer Lichtbogenkammer
DE320803C (de) * 1913-12-26 1920-05-04 Westinghouse Electric Corp Einrichtung zum Schutz gegen UEberspannungen beim OEffnen von OElschaltern
DE742004C (de) * 1941-08-15 1957-01-17 Brown Boveri & Cie Baden Schwe Einrichtung zum Schutz von Schaltgeraeten, insbesondere Innenraumgeraeten, gegen UEberspannungen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155841A (en) * 1937-10-16 1939-04-25 Ohio Brass Co Protective gap

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450946A (en) * 1967-04-24 1969-06-17 Nasa Protective circuit of the spark gap type
US20140168832A1 (en) * 2012-12-18 2014-06-19 Ronald Dittrich X-Ray Tube
US9673592B2 (en) * 2012-12-18 2017-06-06 Siemens Aktiengesellschaft X-ray tube

Also Published As

Publication number Publication date
FR1336747A (fr) 1963-09-06
GB976870A (en) 1964-12-02
GB976070A (en) 1964-11-25
DE1264566B (de) 1968-03-28
CH393478A (fr) 1965-06-15

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