GB560217A - Improvements in electric switchgear structures - Google Patents
Improvements in electric switchgear structuresInfo
- Publication number
- GB560217A GB560217A GB582743A GB582743A GB560217A GB 560217 A GB560217 A GB 560217A GB 582743 A GB582743 A GB 582743A GB 582743 A GB582743 A GB 582743A GB 560217 A GB560217 A GB 560217A
- Authority
- GB
- United Kingdom
- Prior art keywords
- handle
- breaker
- lever
- earthing
- sleeves
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
560,217. Switchgear structures; automatic circuit-breakers ; latching switches. SWITCHGEAR & COWANS, Ltd., and UPTON, A. April 12, 1943, No. 5827. [Class 38 (v)] A switchgear structure comprises a fixed part having bus-bar socket contacts b and a movable unit containing the circuit-breaker the terminals of which are in the form of plugs a for engaging the sockets b. A socket 17 connected to plug a normally is connected to a ring 16 connected to a breaker terminal by means of a sleeve 15, which can be slid so as to connect ring 16 instead to earth. The operating means comprises an insulating link 20, lever 19 and shaft 22. The sleeves. may be operated from a handle-shaft having a locking disc at each end co-operating with the breaker handle-and an earthing handle, respectively, through separate locking bolts on either side of the structure. The earthing handle is able to close the breaker after the sleeves have been earthed, thereby to earth the controlled circuit, Figs. 2-5 (not shown). In Fig. 6, the breaker handle m is movable to the closed position when the earthing handle 7 operates the sleeves to the earthed position shown. In the breaker-open position a bar 13 can be slid into slot 31 to lock it and also to free the handle 7. A bell-crank lever 35 rotating with handle m is connected, by a link 37 and pivot 23a to a catch plate 23 which is pivoted at 24a to the contact lift rod 24 guided by links 25, 26. Plate 23 is normally locked by a trip lever 27 operable by an overload or no-volt plunger 28, and a gravity catch 36 is provided on lever 35 whereby counterclockwise opening movement of handle m automatically effects tripping. In the earthing position shown, handle 7 acting through pin 32, moves a rod 33 to immobilize gravity catch 36 and to force lever 27 to lock plate 23, so establishing a driving connection between m, 24, and enabling bar 13 to engage the slot 30 and the breaker to be opened by the handle m without affecting the trip mechanism and to be closed notwithstanding the controlled circuit is free from voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB582743A GB560217A (en) | 1943-04-12 | 1943-04-12 | Improvements in electric switchgear structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB582743A GB560217A (en) | 1943-04-12 | 1943-04-12 | Improvements in electric switchgear structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB560217A true GB560217A (en) | 1944-03-24 |
Family
ID=9803342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB582743A Expired GB560217A (en) | 1943-04-12 | 1943-04-12 | Improvements in electric switchgear structures |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB560217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2721236A (en) * | 1953-01-13 | 1955-10-18 | Gen Electric | Mechanical interlock |
-
1943
- 1943-04-12 GB GB582743A patent/GB560217A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2721236A (en) * | 1953-01-13 | 1955-10-18 | Gen Electric | Mechanical interlock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4105878A (en) | Vacuum interrupter and disconnect combination | |
| GB827740A (en) | Electric overload circuit breaker | |
| US3171921A (en) | Circuit breaker operating mechanism | |
| GB1094380A (en) | Electric circuit breaker with thermal tripping means | |
| GB1393799A (en) | Circuit breaker | |
| US2600304A (en) | Substitute unit for circuit testing and grounding | |
| GB1211523A (en) | Circuit breaker with thrust transmitting operating mechanism | |
| GB1135169A (en) | Metal enclosed switchgear | |
| US3711748A (en) | Electric plug-on circuit breaker with means for assuring tripping of the breaker before unplugging | |
| GB1390987A (en) | Electrical circuit breakers | |
| GB982993A (en) | Multipole circuit breaker units | |
| GB560217A (en) | Improvements in electric switchgear structures | |
| GB1378373A (en) | Circuit interrupter | |
| GB1208853A (en) | High voltage switch having auxiliary latch operating means for the current interrupter | |
| GB926076A (en) | Electric circuit breakers | |
| GB1259343A (en) | ||
| US3872273A (en) | Switchgear operating mechanism overcenter spring toggle with latched restraint | |
| US3935409A (en) | Current-limiting circuit breaker | |
| US3103565A (en) | walker etal | |
| GB1237772A (en) | Improvements relating to high-voltage electric switchgear | |
| GB831586A (en) | Improvements in or relating to electric switches | |
| GB1374768A (en) | Electrical circuit breakers | |
| GB1211698A (en) | Isolating switch for overhead power lines | |
| GB1533738A (en) | Circuit breakers | |
| GB932195A (en) | Electric circuit breakers |