GB696142A - Improvements in or relating to torsion spring arrangements in electric circuit breakers - Google Patents
Improvements in or relating to torsion spring arrangements in electric circuit breakersInfo
- Publication number
- GB696142A GB696142A GB2742150A GB2742150A GB696142A GB 696142 A GB696142 A GB 696142A GB 2742150 A GB2742150 A GB 2742150A GB 2742150 A GB2742150 A GB 2742150A GB 696142 A GB696142 A GB 696142A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pin
- torsion spring
- torsion
- rod
- arms
- 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
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3042—Power arrangements internal to the switch for operating the driving mechanism using spring motor using a torsion spring
Landscapes
- Breakers (AREA)
- Circuit Breakers (AREA)
Abstract
696,142. Actuation of switches. GENERAL ELECTRIC CO., Ltd., and TAYLOR, S. Nov. 9, 1951 [Nov. 9, 1950], No. 27421/50. Class 38 (v) [Also in Group XXXII] In a circuit breaker a composite torsion spring comprising an outer tubular member and an inner rod is used to assist in opening the circuitbreaker contacts. The Figures show an arrangement in which two composite springs are used, each spring comprising an outer torsion tube 11 splined at one end into an adjustablyfixed supporting member 10 and an inner torsion rod 18 splined at one end into the other end of the tube 11 and at its other end into a lever assembly 2. The lever assembly 2 has bosses 16 rotatably supported in the members 10, the bosses 16 providing bearings for main contact lifting levers 3 interconnected by a pin 23 to which a pull rod 24 is connected. The lever assembly 2 has arms 25 which can contact the pin 23 and a U-shaped part 27 having an adjusting bolt 29 which abuts a stop member 28 to limit the movement of the lever 2. To close the circuit-breaker, the rod 24 is raised and during the last part of its travel, the pin 23 engages the arms 25 and moves them into the chain-line position of Fig. 2 to stress the torsion springs 11, 18. When the circuitbreaker is opened, the arms 25 move down with pin 23 and levers 3 until the bolt 29 engages the stop 28, the force derived from the springs assisting in accelerating the moving contact or contacts (not shown). Each member 10 is rotatably retained in an aperture in a frame by a clamping member 13 to which it is bolted and has a depending lug 12 engaged by bolts 30, which may be adjusted to rotate the member 10 to vary the loading of the associated torsion spring. The Provisional Specification describes an arrangement having one composite torsion spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2742150A GB696142A (en) | 1950-11-09 | 1950-11-09 | Improvements in or relating to torsion spring arrangements in electric circuit breakers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2742150A GB696142A (en) | 1950-11-09 | 1950-11-09 | Improvements in or relating to torsion spring arrangements in electric circuit breakers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB696142A true GB696142A (en) | 1953-08-26 |
Family
ID=10259303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2742150A Expired GB696142A (en) | 1950-11-09 | 1950-11-09 | Improvements in or relating to torsion spring arrangements in electric circuit breakers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB696142A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1297733B (en) * | 1961-06-19 | 1969-06-19 | Fabriek Van Electrische App N | Drive device for electrical switches |
EP2249360A1 (en) * | 2009-05-04 | 2010-11-10 | ABB Technology AG | Drive mechanism for medium voltage switch |
WO2013160409A1 (en) | 2012-04-26 | 2013-10-31 | Alstom Technology Ltd | Device for actuating the contacts of a circuit breaker, comprising a torsion rod |
JP6157780B1 (en) * | 2016-08-08 | 2017-07-05 | 三菱電機株式会社 | Operating device and circuit breaker |
EP3493234A4 (en) * | 2016-08-01 | 2019-07-31 | Mitsubishi Electric Corporation | Operating device and circuit breaker |
-
1950
- 1950-11-09 GB GB2742150A patent/GB696142A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1297733B (en) * | 1961-06-19 | 1969-06-19 | Fabriek Van Electrische App N | Drive device for electrical switches |
EP2249360A1 (en) * | 2009-05-04 | 2010-11-10 | ABB Technology AG | Drive mechanism for medium voltage switch |
CN101882511B (en) * | 2009-05-04 | 2014-06-18 | Abb技术股份公司 | Drive mechanism for medium voltage switch and medium voltage switch including the drive mechanism |
RU2531634C2 (en) * | 2009-05-04 | 2014-10-27 | Абб Текнолоджи Аг | Driving mechanism for middle voltage switch |
WO2013160409A1 (en) | 2012-04-26 | 2013-10-31 | Alstom Technology Ltd | Device for actuating the contacts of a circuit breaker, comprising a torsion rod |
US9466447B2 (en) | 2012-04-26 | 2016-10-11 | Alstom Technology Ltd | Device for actuating the contacts of a circuit breaker, comprising a torsion rod |
EP3493234A4 (en) * | 2016-08-01 | 2019-07-31 | Mitsubishi Electric Corporation | Operating device and circuit breaker |
JP6157780B1 (en) * | 2016-08-08 | 2017-07-05 | 三菱電機株式会社 | Operating device and circuit breaker |
WO2018029760A1 (en) * | 2016-08-08 | 2018-02-15 | 三菱電機株式会社 | Operating device and breaker |
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