GB258557A - Contact device for electrical switchgear - Google Patents
Contact device for electrical switchgearInfo
- Publication number
- GB258557A GB258557A GB18545/26A GB1854526A GB258557A GB 258557 A GB258557 A GB 258557A GB 18545/26 A GB18545/26 A GB 18545/26A GB 1854526 A GB1854526 A GB 1854526A GB 258557 A GB258557 A GB 258557A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- bar
- arcing
- rod
- movable
- 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
- 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)
Abstract
258,557. Maschinenfabrik Oerlikon. Sept. 16, 1925, [Convention date]. Contacts. - An arrangement of main and arcing contacts for heavy current switches comprises fixed contact members 7<1>, 8<1> secured to a bar 1 and movable contact members 7, 8 mounted on a common support 2. The support 2 is pivoted at 3 to a member 4 movable about a fixed pivot 5. The pivot pin 3 extends also into slots 14 in a rectilinearly movable operating rod 6 a spring 9 being interposed between a projection 10 on the bar 6 and the mid-point of the bar 2, the turning movement of which is limited by a stop 11. As the contacts are brought into engagement the arcing contacts 7, 7' first engage as shown in Fig. 1 while further movement of the operating rod brings the main contacts 8, 8<1> also into engagement. Continued motion of the rod permitted by the slots 14 causes equal contact pressure to be exerted through the spring 9 on both contacts (Fig. 2). The contacts 7, 7<1> are formed as arcing contacts and a magnetic blow out may be provided to quench the are between one or a plurality of parallel-connected pairs of arcing contacts during separation. Instead of being pivoted to the rod 4 the member 2 may be guided by arranging the pivot pin 3 to project into suitable fixed guideways. The contacts may alternatively be constructed as laminated brushes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH258557X | 1925-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB258557A true GB258557A (en) | 1927-03-31 |
Family
ID=4472700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18545/26A Expired GB258557A (en) | 1925-09-16 | 1926-07-24 | Contact device for electrical switchgear |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR619834A (en) |
GB (1) | GB258557A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2535702A (en) * | 1949-09-21 | 1950-12-26 | Gen Electric | Electric circuit interrupter |
-
1926
- 1926-07-24 GB GB18545/26A patent/GB258557A/en not_active Expired
- 1926-08-05 FR FR619834D patent/FR619834A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2535702A (en) * | 1949-09-21 | 1950-12-26 | Gen Electric | Electric circuit interrupter |
Also Published As
Publication number | Publication date |
---|---|
FR619834A (en) | 1927-04-09 |
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