GB1499526A - Electric switch comprising an arcing contact - Google Patents
Electric switch comprising an arcing contactInfo
- Publication number
- GB1499526A GB1499526A GB2279275A GB2279275A GB1499526A GB 1499526 A GB1499526 A GB 1499526A GB 2279275 A GB2279275 A GB 2279275A GB 2279275 A GB2279275 A GB 2279275A GB 1499526 A GB1499526 A GB 1499526A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- cams
- contacts
- arcing
- operating
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/42—Knife-and-clip 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
- H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
1499526 Arc rupturing in switches HAZEMEIJER BV 23 May 1975 [7 June 1974] 22792/75 Heading H1N An electric switch comprises a stationary contact 1, a movable contact 2, 3, and arcing contacts 8, 9, the arcing contacts being either secured to the fixed contact and co-operating with the movable contact or being secured to the movable contact and co-operating with the fixed contact, Fig. 7, not shown, and so arranged that on contact breaking the arcing contacts are the last to separate from their co-operating contact whilst, due to cams 4, 5, 14, 15 associated with the contacts, on contact making the arcing contacts make contact with their co-operating contact after the contact to which they are secured. In a first embodiment first cams 4, 5 are attached via resilient springs 6 to the fixed contact 1 and second cams 14, 15, are attached to the moving contact so that during contact making the second cams ride over the first cams moving the arcing contacts away from the other contacts but during contact breaking the second cams are forced under the first cams forcing the arcing contacts into contact with the fixed contact. In a second embodiment the cams are in the form of edge cams to which the arcing contacts are secured, and which are attached to the fixed contact, the cams running on the moving contact and so disposed under spring bias as to keep the arcing contact away from the other contacts but revolves at the start of contact separation to allow the arcing contact to move into contact with its co-operating contact during contact separation. The cams are made of insulating material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7407686A NL154039B (en) | 1974-06-07 | 1974-06-07 | ELECTRICAL SWITCH EQUIPPED WITH A FIRE CONTACT. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1499526A true GB1499526A (en) | 1978-02-01 |
Family
ID=19821505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2279275A Expired GB1499526A (en) | 1974-06-07 | 1975-05-23 | Electric switch comprising an arcing contact |
Country Status (7)
Country | Link |
---|---|
DE (1) | DE2525082C3 (en) |
DK (1) | DK143671C (en) |
ES (1) | ES438310A1 (en) |
FR (1) | FR2274130A1 (en) |
GB (1) | GB1499526A (en) |
IT (1) | IT1036189B (en) |
NL (1) | NL154039B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0961304A1 (en) * | 1998-05-26 | 1999-12-01 | CO.E.P.T.E. COSTRUZIONI ELETTROMECCANICHE PER TRAZIONE ELETTRICA S.r.l. | Disconnector with electrical contact having twin-knife insertion coupling with reduced wear of the electrical contact |
CN102394194A (en) * | 2011-04-12 | 2012-03-28 | 江苏省如高高压电器有限公司 | Isolation switch conductor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2497005B1 (en) * | 1980-12-18 | 1986-06-06 | Wechsler Bernard | IMPROVED TERMINAL FOR ELECTRICAL CONNECTION BOX |
GB9324582D0 (en) * | 1993-11-30 | 1994-01-19 | Long & Crawford Limited | Electrical switchgear |
DE9318545U1 (en) * | 1993-12-03 | 1994-02-10 | Siemens AG, 80333 München | Switch disconnector |
EP4369371A1 (en) * | 2022-11-09 | 2024-05-15 | ABB Schweiz AG | Electrical contact and method of designing an electrical contact |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2469203A (en) * | 1945-12-04 | 1949-05-03 | Gen Electric | Electric switch |
NL261504A (en) * | 1960-02-25 | |||
DE1108776B (en) * | 1960-06-29 | 1961-06-15 | Licentia Gmbh | Switch with a main contact and a secondary contact |
-
1974
- 1974-06-07 NL NL7407686A patent/NL154039B/en not_active IP Right Cessation
-
1975
- 1975-05-23 GB GB2279275A patent/GB1499526A/en not_active Expired
- 1975-06-05 DE DE19752525082 patent/DE2525082C3/en not_active Expired
- 1975-06-05 FR FR7517575A patent/FR2274130A1/en active Granted
- 1975-06-06 ES ES438310A patent/ES438310A1/en not_active Expired
- 1975-06-06 DK DK256275A patent/DK143671C/en not_active IP Right Cessation
- 1975-06-06 IT IT6846275A patent/IT1036189B/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0961304A1 (en) * | 1998-05-26 | 1999-12-01 | CO.E.P.T.E. COSTRUZIONI ELETTROMECCANICHE PER TRAZIONE ELETTRICA S.r.l. | Disconnector with electrical contact having twin-knife insertion coupling with reduced wear of the electrical contact |
CN102394194A (en) * | 2011-04-12 | 2012-03-28 | 江苏省如高高压电器有限公司 | Isolation switch conductor |
CN102394194B (en) * | 2011-04-12 | 2015-01-21 | 江苏省如高高压电器有限公司 | Isolation switch conductor |
Also Published As
Publication number | Publication date |
---|---|
NL7407686A (en) | 1975-12-09 |
AU8170575A (en) | 1976-10-28 |
DE2525082A1 (en) | 1975-12-18 |
DK143671B (en) | 1981-09-21 |
DE2525082B2 (en) | 1980-07-17 |
DK143671C (en) | 1982-03-08 |
ES438310A1 (en) | 1977-01-16 |
DK256275A (en) | 1975-12-08 |
FR2274130B1 (en) | 1978-02-03 |
IT1036189B (en) | 1979-10-30 |
FR2274130A1 (en) | 1976-01-02 |
DE2525082C3 (en) | 1981-04-09 |
NL154039B (en) | 1977-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 19950522 |