US1954785A - Means for breaking electric circuits - Google Patents

Means for breaking electric circuits Download PDF

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Publication number
US1954785A
US1954785A US542640A US54264031A US1954785A US 1954785 A US1954785 A US 1954785A US 542640 A US542640 A US 542640A US 54264031 A US54264031 A US 54264031A US 1954785 A US1954785 A US 1954785A
Authority
US
United States
Prior art keywords
arc
electrodes
contacts
electric circuits
coils
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
US542640A
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English (en)
Inventor
Bresson Charles
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
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US1954785A publication Critical patent/US1954785A/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
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Definitions

  • the drawing illustrates dia- I a circuit breaker embodying the 3 and 3' connected to-the line and disposed inside the lead-in insulators 4, 4' mounted on the 1 cover 5 of an oil tank 6. In said tank, the oil;
  • each otthe coils is connected to contacts 10, 10' and to blow-out horns or electrodes 21, 21'.
  • the contacts are each pivoted around an axis 11, 11' and urged thereagainst by springs'12 and 12'. Said contacts are pivoted to-the lower portion of levers 13, 13'. mounted ireely around an axis. 14.
  • the upper parts or the levers 13, 13' are connected to the operating axis 15 of thecircuit breaker.
  • the blow-out coils 19, 19' are each wound around a core 20. These coils are vertically disposed and rather elevated, as well as the elec- This circuit breaker comprises two conductors trodes 21 and 21', to which electrodes the outside turns of the coils are connected. when the lever 15 is drawn upwards the contacts are separated and each or them touches the upper part. oi the corresponding electrode. At this time, the 00.
  • the magnetic blow-out field of the coils 19 and 19 is automatically increased by an electrodynamic blow out resulting from the fact that the electrodes 21 and 21' constitute together with the are a loop through which the current flows, and the eiectro-dynamic effects created by this loop tend to enlarge this loop and thus drive the 76 arc in a downward direction.
  • the invention may be realized by displacing the arc in a direction difierent to that of the gases and not necessarily in the inverse direction of the displacement of the gases. In this latter case it is necessary to give to the blow out coils sumcient power so that the arc will be displaced at a speed such that it may be constantly placed outside the gaseous bubble in contact with the insulating liquid. 4 v
  • the same blow out arrangement shown in the drawing is applicable to fuses in oil. It is 511111- cient to replace the contacts bya fusible conductor.
  • an electro-magnetic device for blowing in a decomposable arc extinguishing fluid
  • the are of electrical apparatus substantially uni,- Iormly spaced arc horns or electrodes and means for blowing the arc along the electrodes the direction of blowing and that of the electrodes being adapted to displace the complete arc in a direction difierent from that, of the escaping gases resulting from the action of the arc on the extinguishinfi fluid.
  • an electro-magnetic device for blowing in a decomposable arc extinguishing fluid the arc of electrical apparatus, substantially uniformly spaced arc homs or electrodes and means for blowing the are along the electrodes the direction of blowing and that of: the electrodes being adapted to displace the complete arc in a. direction opposite to that of the escaping gases resulting from the action of thearc on the extinguishing 3.
  • oil immersed electric circuit breakers In oil immersed electric circuit breakers,

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
US542640A 1930-06-11 1931-06-06 Means for breaking electric circuits Expired - Lifetime US1954785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE614231T 1930-06-11

Publications (1)

Publication Number Publication Date
US1954785A true US1954785A (en) 1934-04-17

Family

ID=34812889

Family Applications (1)

Application Number Title Priority Date Filing Date
US542640A Expired - Lifetime US1954785A (en) 1930-06-11 1931-06-06 Means for breaking electric circuits

Country Status (4)

Country Link
US (1) US1954785A (enrdf_load_stackoverflow)
BE (1) BE380018A (enrdf_load_stackoverflow)
DE (1) DE614231C (enrdf_load_stackoverflow)
FR (1) FR719355A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953666A (en) * 1956-12-31 1960-09-20 Allen Bradley Co High voltage air break switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228334B (de) * 1953-04-28 1966-11-10 Siemens Ag UEberspannungsschutzeinrichtung
DE1144364B (de) * 1957-10-31 1963-02-28 Wickmann Werke Ag Niederspannungsschaltgeraet fuer Wechselstrom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953666A (en) * 1956-12-31 1960-09-20 Allen Bradley Co High voltage air break switch

Also Published As

Publication number Publication date
BE380018A (enrdf_load_stackoverflow)
FR719355A (fr) 1932-02-04
DE614231C (de) 1935-06-04

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