GB249250A - Improvements in or relating to electric switches - Google Patents
Improvements in or relating to electric switchesInfo
- Publication number
- GB249250A GB249250A GB53025A GB53025A GB249250A GB 249250 A GB249250 A GB 249250A GB 53025 A GB53025 A GB 53025A GB 53025 A GB53025 A GB 53025A GB 249250 A GB249250 A GB 249250A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spindle
- contacts
- feeders
- members
- frame
- 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
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
Landscapes
- Types And Forms Of Lifts (AREA)
Abstract
249,250. Callender's Cable & Construction Co., Ltd., and Kay, C. W. Jan. 7, 1925. High-potential switches for multi-phase systems, for connecting e.g. a branch conductor to one or both of the feeders, comprise a rotatable spindle a on which are mounted T-shaped members b, b<1>, b<2>, one for each phase, the three ends of each T-shaped member carrying mutually connected contacts d adapted to co-operate with fixed contacts e of which two are connected to the feeders and the third to the branch conductor. Figs. 1 and 2 show the invention applied to an air break switch, the spindle a being mounted in a lattice tower with the members b, b<1>, b<2> at the top and means for rotating the spindle at the bottom. Fig. 7 shows one position of the switch in which the T-shaped members connect the branch line C to both of the feeders A, B. By rotating the spindle the line C may be connected to A or B or A and B may be connected together or contact may be broken altogether. The members b, b', b<2> are mounted on a frame j which runs by rollers k on the H-shaped spindle a so that it can be lowered to the ground and the contacts, fuses &c. can be renewed. Means for lowering the frame i comprising an endless chain i and a system of pulleys are described. To ensure correct registration of contacts when the frame i is raised again into position, it is caused to pass by and then descend into contact with stops r, Fig. 6, which are moved inwards and outwards by a rod s operated from the ground by a lever x. The invention is also shown applied to a three-phase oil-switch, the spindle a in this case projecting upwards through the cover and carrying an external operating wheel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB53025A GB249250A (en) | 1925-01-07 | 1925-01-07 | Improvements in or relating to electric switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB53025A GB249250A (en) | 1925-01-07 | 1925-01-07 | Improvements in or relating to electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB249250A true GB249250A (en) | 1926-03-25 |
Family
ID=9705960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB53025A Expired GB249250A (en) | 1925-01-07 | 1925-01-07 | Improvements in or relating to electric switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB249250A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2470576A (en) * | 1946-12-23 | 1949-05-17 | Matthews W N Corp | Gang operated switch |
EP0008513A1 (en) * | 1978-08-18 | 1980-03-05 | George Caton | Switch arrangement for three-phase electrical supply |
GB2193843A (en) * | 1986-07-25 | 1988-02-17 | Abimer | Medium voltage switches |
-
1925
- 1925-01-07 GB GB53025A patent/GB249250A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2470576A (en) * | 1946-12-23 | 1949-05-17 | Matthews W N Corp | Gang operated switch |
EP0008513A1 (en) * | 1978-08-18 | 1980-03-05 | George Caton | Switch arrangement for three-phase electrical supply |
GB2193843A (en) * | 1986-07-25 | 1988-02-17 | Abimer | Medium voltage switches |
GB2193843B (en) * | 1986-07-25 | 1990-05-16 | Abimer Pty Ltd | Medium voltage switches |
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