US2347331A - Arc-extinguishing circuit breaker - Google Patents

Arc-extinguishing circuit breaker Download PDF

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Publication number
US2347331A
US2347331A US437472A US43747242A US2347331A US 2347331 A US2347331 A US 2347331A US 437472 A US437472 A US 437472A US 43747242 A US43747242 A US 43747242A US 2347331 A US2347331 A US 2347331A
Authority
US
United States
Prior art keywords
arc
rods
dispersion
circuit breaker
plane
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
US437472A
Other languages
English (en)
Inventor
Perret Henri
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Application granted granted Critical
Publication of US2347331A publication Critical patent/US2347331A/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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc

Definitions

  • an increased surface is obtained by arranging a plurality of rods of non-conducting material in the blow-out chamber.
  • these rods are set preferably in planes extending parallel to the plane of arc-dispersion.
  • metallic plates extending across the plane of arc-dispersion may protrude from the rods.
  • Figure 1 shows diagrammatically a blow-out chamber for arc-dispersion in one direction
  • Figure 2 is an elevation of a chamber for arcdispersion towards two opposite directions
  • Figure 3 a sectional view thereto.
  • Figure 4 shows different cross-sections of a rod
  • Figure 5 is a combined arrangement.
  • the stationary contact is designated l and the movable contact 2 and the blow-out chamber 3 of a small automatic breaker.
  • the blow-out chamber 3 consists of nonconducting, preferably ceramic material.
  • the rods also of non-conducting or ceramic material-are set in planes extendin parallel to the plane of arc-dispersion; the rods be ing thereby arranged in staggered rows.
  • two contacting points are provided through the central arrangement of two stationary contacts I and one forked movable contact 2.
  • the blow-out chamber comprises two pocketlike parts 3 and 3a assembled to form a case consisting of non-conducting, preferably ceramic, material.
  • rows of rods 4 of non-conducting, preferably ceramic material are arranged on both sides of the contacts I and 2, also again in planes parallel to the plane of arc-dispersion.
  • the dispersing arcs are split up into further sparks through the mentioned rods which withdraw the heat on account of their great cooling surface, thus promoting extinction.
  • the cross-section of the rods may be circular as shown in Figure 4 left-hand, or also of any shape, for instance stream-lined as per Figure 4, and according to their number and diameter this may result in an increase of to percent of the cooling surface for the arc or arcs compared with the known inset walls.
  • the rods 4 may also be applied in combination with conventional magnetic plates in such circuit breakers. According to Figure 5 five such plates can be seen which are arranged fanwise and crosswise to the plane of arc-dispersion. The rods 4 of non-conducting material supports these plates 5, thus promoting the rapid cooling of the arc already split up by the said plates.
  • a blow-out chamber for small magnetic arc extinguishing circuit breakers in which parallel rods of non-conducting material are arranged and support metallic plates extending into the path of the arc-dispersion.
  • a blow-out chamber for small circuit breakers as set forth in claim 1 in which the rods are parallel to the plane of arc-dispersion and the plates extend across said plane.
  • a blow-out chamber for small circuit breakers as set forth in claim 1 in which the chamber is perforated and the rods are embedded in the Walls of the chamber with the rods parallel to the plane of arc-dispersion and the plates extend across said plane.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
  • Circuit Breakers (AREA)
US437472A 1941-04-09 1942-04-03 Arc-extinguishing circuit breaker Expired - Lifetime US2347331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH553043X 1941-04-09

Publications (1)

Publication Number Publication Date
US2347331A true US2347331A (en) 1944-04-25

Family

ID=4519774

Family Applications (1)

Application Number Title Priority Date Filing Date
US437472A Expired - Lifetime US2347331A (en) 1941-04-09 1942-04-03 Arc-extinguishing circuit breaker

Country Status (6)

Country Link
US (1) US2347331A (en:Method)
BE (1) BE443934A (en:Method)
CH (1) CH217328A (en:Method)
FR (1) FR882812A (en:Method)
GB (1) GB553043A (en:Method)
NL (1) NL61186C (en:Method)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103985577A (zh) * 2014-05-23 2014-08-13 国家电网公司 一种便携式电力开关器
US20230101203A1 (en) * 2020-03-11 2023-03-30 Omron Corporation Electromagnetic relay

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121160B (de) * 1954-12-30 1962-01-04 Siemens Ag Lichtbogenkammer mit Isolierstoffwaenden fuer Niederspannungsschaltgeraete

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103985577A (zh) * 2014-05-23 2014-08-13 国家电网公司 一种便携式电力开关器
US20230101203A1 (en) * 2020-03-11 2023-03-30 Omron Corporation Electromagnetic relay

Also Published As

Publication number Publication date
FR882812A (fr) 1943-06-16
BE443934A (en:Method)
CH217328A (de) 1941-10-15
GB553043A (en) 1943-05-05
NL61186C (en:Method)

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