GB400702A - Improvements in and relating to isolating switches for use with overhead electric lines - Google Patents
Improvements in and relating to isolating switches for use with overhead electric linesInfo
- Publication number
- GB400702A GB400702A GB1507732A GB1507732A GB400702A GB 400702 A GB400702 A GB 400702A GB 1507732 A GB1507732 A GB 1507732A GB 1507732 A GB1507732 A GB 1507732A GB 400702 A GB400702 A GB 400702A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- switch
- limb
- contact
- blade
- 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
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
400,702. Air-break switches. STEWART, J. E., 14A, Eton Road, Hampstead, and NORTON, R. T., 10, Anderson Street, Sloane Square, both in London. Jan. 21, 1933, No. 15077/32. [Class 38 (v).] Isolating-switches for use with overhead distribution lines each comprise a pair of switch contacts mounted on an insulator and insulated from one another, connections from one set of contacts to a main line and the other set of contacts to a branch line and a switch arm hinged to one set of contacts and having a limb adapted to co-operate with the other set of contacts for opening and closing the circuit and another limb which serves as a means for actuating the switch arm. As shown in Fig. 1, each switch comprises an insulator 14 around which is clamped the switch contacts, the fixed contact consisting of a contact jaw 15 and the movable contact of a blade 20 pivoted to a fixed clip 18a. The clips 18a are connected to branch lines 12 by jumpers 19 and the contact jaws 15 are connected to the main lines 6 by jumpers 17. Each switch blade is in the form of a bell crank, one limb of which acts as a blade contact member and the other limb as an actuating member, being pivotally connected to a clip 20a on a vertically-movable insulating operating rod 21 operable from the base of the pole 9 by a finger grip 21a. The rod 21 is provided with recesses 21b and a spring 24 so that it may be latched in its "on" or "off" positions. In an alternative arrangement, Fig. 5 (not shown), the insulators carrying the main and branch lines are disposed on opposite sides of the pole, the switch insulators being disposed intermediately.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1507732A GB400702A (en) | 1933-01-21 | 1933-01-21 | Improvements in and relating to isolating switches for use with overhead electric lines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1507732A GB400702A (en) | 1933-01-21 | 1933-01-21 | Improvements in and relating to isolating switches for use with overhead electric lines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB400702A true GB400702A (en) | 1933-11-02 |
Family
ID=10052599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1507732A Expired GB400702A (en) | 1933-01-21 | 1933-01-21 | Improvements in and relating to isolating switches for use with overhead electric lines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB400702A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2595003A1 (en) * | 1986-02-27 | 1987-08-28 | Merlin Gerin | Multipole electrical apparatus with common envelope and gas insulation |
CN102347163A (en) * | 2010-07-30 | 2012-02-08 | 青岛特锐德电气股份有限公司 | Isolating switch |
CN109638700A (en) * | 2018-12-31 | 2019-04-16 | 芜湖金牛电气股份有限公司 | Low-tension switch cabinet and its working method |
-
1933
- 1933-01-21 GB GB1507732A patent/GB400702A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2595003A1 (en) * | 1986-02-27 | 1987-08-28 | Merlin Gerin | Multipole electrical apparatus with common envelope and gas insulation |
CN102347163A (en) * | 2010-07-30 | 2012-02-08 | 青岛特锐德电气股份有限公司 | Isolating switch |
CN109638700A (en) * | 2018-12-31 | 2019-04-16 | 芜湖金牛电气股份有限公司 | Low-tension switch cabinet and its working method |
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