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US1851238A - Electric arc disrupter - Google Patents

Electric arc disrupter Download PDF

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Publication number
US1851238A
US1851238A US359128A US35912829A US1851238A US 1851238 A US1851238 A US 1851238A US 359128 A US359128 A US 359128A US 35912829 A US35912829 A US 35912829A US 1851238 A US1851238 A US 1851238A
Authority
US
United States
Prior art keywords
field
electric arc
disrupter
circuit
current
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
US359128A
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English (en)
Inventor
Branchu Paul Joseph
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.)
Individual
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 US1851238A publication Critical patent/US1851238A/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Definitions

  • the present invention relates to devices adapted to blow the electric arcs in circuit breakers and its object is to provide an improved device efiectiveto so modify the mag- 5 netic flux blowing the are that the field is reinforced in the regions most favorable for the good working of the circuit breaker or switch.
  • the invention consists in placing within the field a conductor a, b, constituting a circuit closed on itself and comprising two 0ppositely wound windings in the shape of a figure 8 of different sizes. Variations of the blowout field induce E. M. F. in each winding, but th E. M. F. of the larger loop will be larger as its linkage with the field flux is greater, consequently a current will flow in the two loops.
  • the direction of winding is such that this current reduces the flux due to the blowout winding in the region of the upper or larger loop and increases it in the region of the small loop near the contacts.
  • These properties can be, for example, utilized to reinforce the field blowing the are .at the moment of working of a switch.
  • Fig. '1 is a section of an embodiment of the invention taken on the line 1-1 of'Fig. 2;
  • Fig. 2 is an elevation at right angles to Fig. 3 is a detail elevation of a modified form of the coils' and showing one of the coils.
  • p is the line traversed by the main current and g is the blowing coil placed inseries in this line and creating a magnetic field in a mag- I netic circuit 7.
  • the blowing box is formed in the usual way by insulating walls d, e.
  • the invention consists in that a conductor a,bclosed in itself and forming the secondary winding of a transformer whose primary winding is constituted by the blowing coil' g, is placed. in the field blowing the arc engenopening of the circuit breaken-will be dered between 0, 0'.
  • This secondary conductor is situated outside of the blowing box and is separated from the arc.
  • this secondary conductor as forms the figure 8 whose two loops a, b are therefore reversed, as to direction, and moreover are unequal in size, the greater loop a surrounding the field in a' region removed from the point where the contacts 0,0 meet 60 or are to beseparated, the small loop 5 being situated in the region of these contacts 0, o; r
  • the device serves to' distort the field between the pole pieces, strengthening the field in the region of the initial arc and decreasing it above that point.
  • Fig. 3 represents an embodiment according to which the secondary conductor comprises several loops (1, b of increasing dimensions.
  • the invention is, of course, not limited to the embodiments shown and described and extends to all kinds of disjunctors and circuit breakers whose magnetic flux blowing the arc can be very favorably modified.

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  • Arc-Extinguishing Devices That Are Switches (AREA)
US359128A 1928-05-10 1929-04-29 Electric arc disrupter Expired - Lifetime US1851238A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR657067T 1928-05-10

Publications (1)

Publication Number Publication Date
US1851238A true US1851238A (en) 1932-03-29

Family

ID=9008190

Family Applications (1)

Application Number Title Priority Date Filing Date
US359128A Expired - Lifetime US1851238A (en) 1928-05-10 1929-04-29 Electric arc disrupter

Country Status (2)

Country Link
US (1) US1851238A (fr)
FR (1) FR657067A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632075A (en) * 1947-01-04 1953-03-17 Westinghouse Electric Corp Circuit interrupter
US2697154A (en) * 1951-05-26 1954-12-14 Westinghouse Electric Corp Circuit interrupter
US2729723A (en) * 1952-02-14 1956-01-03 Siemens Ag Alternating-current circuit interrupters

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1043840A (fr) * 1974-04-29 1978-12-05 Square D. Company Disjoncteur limiteur de courant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632075A (en) * 1947-01-04 1953-03-17 Westinghouse Electric Corp Circuit interrupter
US2697154A (en) * 1951-05-26 1954-12-14 Westinghouse Electric Corp Circuit interrupter
US2729723A (en) * 1952-02-14 1956-01-03 Siemens Ag Alternating-current circuit interrupters

Also Published As

Publication number Publication date
FR657067A (fr) 1929-05-16

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