NO944566L - Electric switching device - Google Patents

Electric switching device

Info

Publication number
NO944566L
NO944566L NO944566A NO944566A NO944566L NO 944566 L NO944566 L NO 944566L NO 944566 A NO944566 A NO 944566A NO 944566 A NO944566 A NO 944566A NO 944566 L NO944566 L NO 944566L
Authority
NO
Norway
Prior art keywords
electrode
contact element
main electrodes
switching device
main
Prior art date
Application number
NO944566A
Other languages
Norwegian (no)
Other versions
NO944566D0 (en
Inventor
Allen Wilkinson
David Albert Webb
Original Assignee
Long & Crawford Ltd
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 Long & Crawford Ltd filed Critical Long & Crawford Ltd
Publication of NO944566D0 publication Critical patent/NO944566D0/en
Publication of NO944566L publication Critical patent/NO944566L/en

Links

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
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

En elektrisk koblingsanordning har et par hovedelektroder (7,20) som er innbyrdes^Tcontakt i en første PA-stilling, en lysbueelektrode (8) som er elektrisk koblet til og stivt for- bundet med en av hovedelektrodene samt et bærende kontakt- element (31) som er elektrisk koblet til og fjærende montert i forhold til den annen hovedelektrode. I drift kan hovedelektrodene (7,20) bevege seg i forhold til hverandre fra den første PÅ-stilling gjennom en annen mellom- stilling til en tredje AV-stilling, hvor det fjærende kontakt- element (31) i mellomstillingen befinner seg i kontakt med lysbueelektroden (8), mens første hovedelektrode (7) og lysbueelektroden (8) i AV-stillingen er ute av kontakt med den annen elektrode (20) og det fjærende kontaktelement (31). Bryteranordningen er anordnet slik at hovedelektrodene kan forskyves bort fra den tredje stilling, nemlig AV-stillingen til den første PÅ-stillingen uten at det fjærende kontaktelement kommer i kontakt med lysbueelektroden.An electrical coupling device has a pair of main electrodes (7,20) interconnected in a first PA position, an arc electrode (8) electrically connected and rigidly connected to one of the main electrodes, and a supporting contact element ( 31) which is electrically connected and resiliently mounted relative to the other main electrode. In operation, the main electrodes (7,20) can move relative to each other from the first ON position through a second intermediate position to a third AV position, where the resilient contact element (31) in the intermediate position is in contact with the the arc electrode (8), while the first main electrode (7) and the arc electrode (8) in the AV position are out of contact with the second electrode (20) and the resilient contact element (31). The switching device is arranged so that the main electrodes can be moved away from the third position, namely the AV position of the first ON position without the resilient contact element coming into contact with the arc electrode.

NO944566A 1993-11-30 1994-11-29 Electric switching device NO944566L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB939324582A GB9324582D0 (en) 1993-11-30 1993-11-30 Electrical switchgear

Publications (2)

Publication Number Publication Date
NO944566D0 NO944566D0 (en) 1994-11-29
NO944566L true NO944566L (en) 1995-05-31

Family

ID=10745919

Family Applications (1)

Application Number Title Priority Date Filing Date
NO944566A NO944566L (en) 1993-11-30 1994-11-29 Electric switching device

Country Status (6)

Country Link
EP (1) EP0655759A3 (en)
AU (1) AU673631B2 (en)
GB (2) GB9324582D0 (en)
NO (1) NO944566L (en)
NZ (1) NZ270010A (en)
ZA (1) ZA949411B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4841875B2 (en) * 2005-06-29 2011-12-21 株式会社日立製作所 Vacuum insulated switchgear
US7902480B2 (en) 2007-06-13 2011-03-08 Hitachi, Ltd. Vacuum insulated switchgear

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE382647A (en) *
NL154039B (en) * 1974-06-07 1977-07-15 Hazemeijer Bv ELECTRICAL SWITCH EQUIPPED WITH A FIRE CONTACT.
FR2650434B1 (en) * 1989-07-26 1995-11-24 Merlin Gerin LOW VOLTAGE CIRCUIT BREAKER WITH MULTIPLE CONTACTS AND HIGH CURRENTS
GB2260027A (en) * 1991-09-30 1993-03-31 Long & Crawford Limited Electrical switchgear

Also Published As

Publication number Publication date
AU7911394A (en) 1995-06-08
AU673631B2 (en) 1996-11-14
GB9424039D0 (en) 1995-01-18
GB9324582D0 (en) 1994-01-19
NO944566D0 (en) 1994-11-29
EP0655759A2 (en) 1995-05-31
NZ270010A (en) 1996-12-20
EP0655759A3 (en) 1997-06-11
GB2284307B (en) 1997-10-22
GB2284307A (en) 1995-05-31
ZA949411B (en) 1995-08-14

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