US1944402A - Electric circuit-breaker with compressed gas blow-out - Google Patents

Electric circuit-breaker with compressed gas blow-out Download PDF

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Publication number
US1944402A
US1944402A US591893A US59189332A US1944402A US 1944402 A US1944402 A US 1944402A US 591893 A US591893 A US 591893A US 59189332 A US59189332 A US 59189332A US 1944402 A US1944402 A US 1944402A
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US
United States
Prior art keywords
electrodes
arc
breaker
compressed gas
electric circuit
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
US591893A
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English (en)
Inventor
Clerc Andre
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Individual
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Individual
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Publication date
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Application granted granted Critical
Publication of US1944402A publication Critical patent/US1944402A/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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/161—Variable impedances

Definitions

  • My copending application No. 503,835 filed Dec. 20th, 1930 relates to an electric ⁇ circuitbreaker provided with a compressed gas arc blowing out device whose particularity resides in the use of at least one pair of contacts shunted by a resistance.
  • the circuit-breaker in accordance with this invention is characterized in this that the arc blown perpendiczlarly to the displacement of the movable contact meets electrodes connected to the resistance to be inserted and disposed one behind the other, the length of the electrodes penetrating into the chimney, their spacing and the velocity of blowing being so chosen that the resistance elements will shunt a certain length of that portion of the arc which is approximately parallel to the direction of the blowing.
  • Figure 1 is a schematic representation of a circuit breaker according to the invention
  • FIG. 2 is a similar view with modied arrangement of the electrodes
  • Figure 3 is a plan view of Figure 2.
  • FIG. l shows the divergent chimney in which takes place the blowing of the arc.
  • 2 indicates the fixed contact and 3 the movable contact actuated by any suitable means indicated diagrammatically, in the present instance, by numeral 9.
  • the direction of the blowing is indicated by the arrows a.
  • Behind the contacts 2 and 3 (considered in the direction of the blowing) are disposed two series of electrodes 4, 4', 4 on the one side and 5, 5', 5" on the other side, these said electrodes traversing the wall of the chimney and being coupled together by the resistances 6, 6', 6".
  • the electrode 4 is connected i directly to the contact 2 and the electrode 5 to BSSE
  • the arc develops itsellI along the dot and dash lines b.
  • the different series of electrodes utilized can be disposed along diametrically opposed generatrices (intersection line between the conical chimney and a plane on the axis of the cone), of the chimney as shown on the drawing, or along several large pitch spirals.
  • two relatively movable contacts between which an arc is adapted to be struck means to blow onto said arc a blast of compressed gases perpendicularly to the movable contact displacement, a chimney adapted to surround the arc lengthened by the blast, and electrodes in said chimney having resistances connected'therebetween and to one of the contacts, said electrodes being placed behind the contacts and one after the other, when seen in the direction of blowing, whereby the length of electrodes projecting inside the chimney, their spacing, and the blowing speed are adapted to permit intermediary points of the arc to be blown onto the electrodes and to shunt the resistances by portions of the arc parallel to the blowing direction.
  • a circuit breaker two relatively movable contacts between which an arc is adapted to be struck, means tov blow onto said arc a blast of compressed gases perpendicularly to the movable contact displacement, a chimney adapted to surround the arc lengthened by the blast, electrodes disposed in said chimney and projecting within the same, and resistances connected to 'the electrodes and one of the contacts, said electrodes being placed behind the' contacts and disposed along a high-pitched spiral.

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  • Circuit Breakers (AREA)
US591893A 1931-02-09 1932-02-09 Electric circuit-breaker with compressed gas blow-out Expired - Lifetime US1944402A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1944402X 1931-02-09

Publications (1)

Publication Number Publication Date
US1944402A true US1944402A (en) 1934-01-23

Family

ID=7750654

Family Applications (2)

Application Number Title Priority Date Filing Date
US20044D Expired USRE20044E (en) 1931-02-09 Electric circuit-breaker with
US591893A Expired - Lifetime US1944402A (en) 1931-02-09 1932-02-09 Electric circuit-breaker with compressed gas blow-out

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US20044D Expired USRE20044E (en) 1931-02-09 Electric circuit-breaker with

Country Status (3)

Country Link
US (2) US1944402A (enrdf_load_stackoverflow)
BE (1) BE385654A (enrdf_load_stackoverflow)
FR (1) FR41414E (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453555A (en) * 1943-09-11 1948-11-09 Bbc Brown Boveri & Cie Gas blast circuit breaker
US2508094A (en) * 1945-04-06 1950-05-16 Gen Electric Circuit interrupting apparatus
US2608599A (en) * 1949-09-21 1952-08-26 Gen Electric Arc extinguishing device
US2629798A (en) * 1948-10-30 1953-02-24 Allis Chalmers Mfg Co Cross air blast circuit breaker
US3728505A (en) * 1971-07-26 1973-04-17 Ite Imperial Corp Resistor and means for gradually inserting resistor in parallel with interrupter contacts
US4714974A (en) * 1985-08-30 1987-12-22 Asea Aktiebolag Current limiter

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE453984A (enrdf_load_stackoverflow) * 1943-01-18
BE462592A (enrdf_load_stackoverflow) * 1945-01-26
US2606982A (en) * 1949-06-11 1952-08-12 Allis Chalmers Mfg Co Arc chute defining two alternate arc paths

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453555A (en) * 1943-09-11 1948-11-09 Bbc Brown Boveri & Cie Gas blast circuit breaker
US2508094A (en) * 1945-04-06 1950-05-16 Gen Electric Circuit interrupting apparatus
US2629798A (en) * 1948-10-30 1953-02-24 Allis Chalmers Mfg Co Cross air blast circuit breaker
US2608599A (en) * 1949-09-21 1952-08-26 Gen Electric Arc extinguishing device
US3728505A (en) * 1971-07-26 1973-04-17 Ite Imperial Corp Resistor and means for gradually inserting resistor in parallel with interrupter contacts
US4714974A (en) * 1985-08-30 1987-12-22 Asea Aktiebolag Current limiter

Also Published As

Publication number Publication date
USRE20044E (en) 1936-07-28
FR41414E (fr) 1933-01-10
BE385654A (enrdf_load_stackoverflow)

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