GB1142209A - Improvements in and relating to contact members for vacuum switches - Google Patents

Improvements in and relating to contact members for vacuum switches

Info

Publication number
GB1142209A
GB1142209A GB2212765A GB2212765A GB1142209A GB 1142209 A GB1142209 A GB 1142209A GB 2212765 A GB2212765 A GB 2212765A GB 2212765 A GB2212765 A GB 2212765A GB 1142209 A GB1142209 A GB 1142209A
Authority
GB
United Kingdom
Prior art keywords
members
contact
copper
casting
resilience
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
GB2212765A
Inventor
George Thomas Moors
Thomas Raine
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB2212765A priority Critical patent/GB1142209A/en
Priority to FR62849A priority patent/FR1480959A/en
Publication of GB1142209A publication Critical patent/GB1142209A/en
Expired legal-status Critical Current

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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6642—Contacts; Arc-extinguishing means, e.g. arcing rings having cup-shaped contacts, the cylindrical wall of which being provided with inclined slits to form a coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

1,142,209. Making composite electric switch contacts; casting processes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 17 May, 1966 [25 May, 1965], No. 22127/65. Headings B3A and B3F. [Also in Division H1] A contact for a vacuum switch (Figs. 1-4, not shown) is cast in a graphite mould 46 divided by a partition 54 into an upper compartment in which is placed a billet of copper and a lower compartment fitted with a graphite jig 48 supporting two cylindrical members 40, 42 of molybdenum or stainless steel. The mould is heated in a vacuum by an induction coil (not shown) to cause the copper to flow into the lower compartment around the members 40, 42. The casting is cooled from the base upwards by raising the induction coil. The finished casting is subsequently machined to provide an annular contact surface (22) concentric with the members 40, 42 and slotted (28) to provide a plurality of contact segments each of which includes a part of the members 40, 42 to give the contact segments resilience. The cylindrical insert members 40, 42 may be circumferentially corrugated to increase the resilience or apertured to reduce the resistance of the contact and if they are of stainless steel they may be coated with molybdenum to prevent reaction with the molten copper and with nickel to produce a good bond therewith.
GB2212765A 1965-05-25 1965-05-25 Improvements in and relating to contact members for vacuum switches Expired GB1142209A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2212765A GB1142209A (en) 1965-05-25 1965-05-25 Improvements in and relating to contact members for vacuum switches
FR62849A FR1480959A (en) 1965-05-25 1966-05-25 Improvements to vacuum switch contacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2212765A GB1142209A (en) 1965-05-25 1965-05-25 Improvements in and relating to contact members for vacuum switches

Publications (1)

Publication Number Publication Date
GB1142209A true GB1142209A (en) 1969-02-05

Family

ID=10174337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2212765A Expired GB1142209A (en) 1965-05-25 1965-05-25 Improvements in and relating to contact members for vacuum switches

Country Status (1)

Country Link
GB (1) GB1142209A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009925A1 (en) * 1980-03-14 1981-09-24 Siemens AG, 1000 Berlin und 8000 München CONTACT PIECE FOR AN ELECTRICAL VACUUM SWITCH
WO2015034730A1 (en) * 2013-09-04 2015-03-12 Eaton Corporation Vacuum switching apparatus and contact assembly therefor
CN111448634A (en) * 2017-12-11 2020-07-24 西门子股份公司 Overpressure-resistant vacuum switching tube

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009925A1 (en) * 1980-03-14 1981-09-24 Siemens AG, 1000 Berlin und 8000 München CONTACT PIECE FOR AN ELECTRICAL VACUUM SWITCH
WO2015034730A1 (en) * 2013-09-04 2015-03-12 Eaton Corporation Vacuum switching apparatus and contact assembly therefor
CN105493215A (en) * 2013-09-04 2016-04-13 伊顿公司 Vacuum switching apparatus and contact assembly therefor
US9378908B2 (en) 2013-09-04 2016-06-28 Eaton Corporation Vacuum switching apparatus and contact assembly therefor
JP2016529681A (en) * 2013-09-04 2016-09-23 イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ Vacuum switch and its contact assembly
US9679723B2 (en) 2013-09-04 2017-06-13 Eaton Corporation Vacuum switching apparatus and contact assembly therefor
CN105493215B (en) * 2013-09-04 2019-11-15 伊顿智能动力有限公司 Vacuum switchgear and its contact assembly
CN110600291A (en) * 2013-09-04 2019-12-20 伊顿智能动力有限公司 Vacuum switching apparatus and contact assembly thereof
CN110600291B (en) * 2013-09-04 2022-06-03 伊顿智能动力有限公司 Vacuum switching apparatus and contact assembly thereof
CN111448634A (en) * 2017-12-11 2020-07-24 西门子股份公司 Overpressure-resistant vacuum switching tube

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