GB1095764A - Improvements in electrical switching devices - Google Patents

Improvements in electrical switching devices

Info

Publication number
GB1095764A
GB1095764A GB1001465A GB1001465A GB1095764A GB 1095764 A GB1095764 A GB 1095764A GB 1001465 A GB1001465 A GB 1001465A GB 1001465 A GB1001465 A GB 1001465A GB 1095764 A GB1095764 A GB 1095764A
Authority
GB
United Kingdom
Prior art keywords
contact
leg
arc
contacts
produced
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
Application number
GB1001465A
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.)
SVENSKA ELFAB SELFA AB
Original Assignee
SVENSKA ELFAB SELFA AB
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 SVENSKA ELFAB SELFA AB filed Critical SVENSKA ELFAB SELFA AB
Publication of GB1095764A publication Critical patent/GB1095764A/en
Expired legal-status Critical Current

Links

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
    • H01H9/10—Adaptation for built-in fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • 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
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
  • Breakers (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

1,095,764. Switch contacts; arc rupturing in switches. SVENSKA ELFABRIKS A.B SELFA. March 9, 1965 [March 9, 1964], No. 10014/65. Heading H2B. An electrical switching device has at least one fixed and one movable contact per pole arranged in such a way that in their closed position the contacts are subjected to a contactpressure augmenting force produced by the current flowing through the contacts and upon interruption of contact a resultant electromagnetic force is produced tending to blow out the arc. The fixed contact comprises leg 10 joined by conductive hinge 12 to leg 11 urged against the movable contact comprising main contact 8 and auxiliary contact 9 by spring 13, a stop being provided comprising bolt 14 insulated from legs 10, 11. When the contacts are closed current flows through leg 10, hinge 12 and leg 11, the magnetic fields of the current causing a contact pressure augmenting force. On actuation of the switching device, the moving contact moves upwards and leg 11 pivots so that contact is finally broken between the free end of leg 11 and auxiliary contact 9, the electromagnetic forces produced blowing out the arc beyond the free end of leg 11 into arc control device (17) having arc-chutes (18). Operating handle (2) operates the device through an unspecified mechanism.
GB1001465A 1964-03-09 1965-03-09 Improvements in electrical switching devices Expired GB1095764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE292464 1964-03-09

Publications (1)

Publication Number Publication Date
GB1095764A true GB1095764A (en) 1967-12-20

Family

ID=20261014

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1001465A Expired GB1095764A (en) 1964-03-09 1965-03-09 Improvements in electrical switching devices

Country Status (8)

Country Link
AT (1) AT262430B (en)
BE (1) BE660832A (en)
CH (1) CH431661A (en)
DE (1) DE1540375B2 (en)
FR (1) FR1426023A (en)
GB (1) GB1095764A (en)
NL (1) NL6502961A (en)
NO (1) NO119094B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995005671A1 (en) * 1993-08-19 1995-02-23 Blp Components Limited Switching devices

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451958A (en) * 1973-05-03 1976-10-06 Mte Components Lt Electrical switches
DE2915090C2 (en) * 1979-04-12 1982-03-04 Siemens AG, 1000 Berlin und 8000 München Low voltage load switch with fuse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995005671A1 (en) * 1993-08-19 1995-02-23 Blp Components Limited Switching devices
GB2295726A (en) * 1993-08-19 1996-06-05 Blp Components Ltd Switching devices
GB2295726B (en) * 1993-08-19 1997-08-06 Blp Components Ltd Switching devices

Also Published As

Publication number Publication date
DE1540375A1 (en) 1970-01-02
BE660832A (en) 1965-07-01
FR1426023A (en) 1966-01-24
AT262430B (en) 1968-06-10
NO119094B (en) 1970-03-23
CH431661A (en) 1967-03-15
DE1540375B2 (en) 1972-05-18
NL6502961A (en) 1965-09-10

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