GB776025A - Improvements in means for loading the actuating springs of circuit-breakers - Google Patents
Improvements in means for loading the actuating springs of circuit-breakersInfo
- Publication number
- GB776025A GB776025A GB2312/55A GB231255A GB776025A GB 776025 A GB776025 A GB 776025A GB 2312/55 A GB2312/55 A GB 2312/55A GB 231255 A GB231255 A GB 231255A GB 776025 A GB776025 A GB 776025A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- arm
- shaft
- hub
- core
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/065—Electromechanical oscillators; Vibrating magnetic drives
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G25/00—Other details or appurtenances of control mechanisms, e.g. supporting intermediate members elastically
-
- 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
- H01H3/3005—Charging means
- H01H3/3021—Charging means using unidirectional coupling
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G2700/00—Control mechanisms or elements therefor applying a mechanical movement
- G05G2700/12—Control mechanisms with one controlling member and one controlled member
- G05G2700/14—Control mechanisms with one controlling member and one controlled member with one elastic element as essential part, e.g. elastic components as a part of an actuating mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
- Transmission Devices (AREA)
Abstract
776,025. Tensioning springs. ETABLISSEMENTS MERLIN & GERIN. Jan. 26, 1955 [Jan. 28, 1954; Dec. 17, 1954], No. 2312/55. Class 10. A circuit-breaker actuating spring 28, Fig. 1, is tensioned and loaded by hydraulic means, a rocking lever 17, actuated by an electromagnet 13, causing a piston 37 to move downwardly in a cylinder 38, thereby forcing liquid therefrom past a non-return valve 43 into a cylinder 39 where it acts upon a piston 40 moving it downwardly to tension the spring 28. On each upward movement of the piston 37 the cylinder 38 refills spring and thus close the breaker, a push-rod 44 acting upon a valve 45 is operated. In the spring loading mechanism of Figs. 2, 3, two free-wheel devices 54, 57 are utilized. A shaft 51 turning in bearings 52, 53 is adapted to load, through a crank arm 67 and link 68, a spring 70. Fast on the shaft are free-wheel hubs 65, 66, the arm 58 of the race associated with the hub 65 being adapted to be rocked by a reciprocating core 59. The balls 64 in the hub 65 are so disposed that clockwise rotation given to the race causes the hub and hence the shaft to rotate whilst similar balls in the hub 66 allow the arm 52 of the race of hub 66 to free wheel during this period. In the spring unloaded position, the crank arm 67 takes up the position OY. Clockwise step-by-step rotation of the shaft 51 until, in crank arm position OX, the spring 70 is fully wound, is caused by reciprocation of core 59. To release the stored energy an additional impulse is given to the magnet to move the core 59 downwardly. The race of hub 65 then rotates clockwise moving the link 68 from dead-centre OX to allow the spring 70 to expand and rotate the shaft 51 in a clockwise direction through an angle α closing in consequence a circuit-breaker whose actuating mechanism is coupled to the shaft. Step-bystep spring -re-energization now commences the device 54, of which the race is rigidly fixed to the mechanism frame at 56 preventing the partially re-energized spring from turning the shaft and the crank 67 anti-clockwise whenever with liquid drawn by suction from a reservoir 41. The impulses emanating from magnet 13 cease when an arm (not shown) on the piston rod 42 acts upon a limit-switch. To liberate the the core 59 moves upwardly. The electromagnet control circuit comprises an arm 72 attached to and rotating with the shaft 51, a rail 73 encircling the shaft, contacts 76 and A, and a box 71 containing a tumbler switch arrangement 77 pivoted at 81 and make-and-break contacts 78, 79. The switch is actuated by an arm 80 moving with the core 59. The circuit contains a push-button starter 75. In the spring unloaded position the arm 72 is at Y and for 360-α degrees of rotation the spring is loaded, the arm 72 and rail 73 contact ensuring that impulses are given to the electromagnet via the make-and-break contacts and arm 80. The spring is fully loaded, Fig. 2, and the arm 72 has left rail 73 and is touching contact 76. Operation of starter 75 ensures the additional magnet impulse necessary to pull the core 59 down and release the spring 70. The arm 72 will then move to the rail 73 at Y cutting the starter 75 out of circuit and automatically restarting the step-by-step loading of the spring.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1086784X | 1954-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB776025A true GB776025A (en) | 1957-05-29 |
Family
ID=9612945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2312/55A Expired GB776025A (en) | 1954-01-28 | 1955-01-26 | Improvements in means for loading the actuating springs of circuit-breakers |
Country Status (7)
Country | Link |
---|---|
US (1) | US2960186A (en) |
BE (1) | BE534765A (en) |
CH (1) | CH323443A (en) |
DE (1) | DE1086784B (en) |
FR (2) | FR1098724A (en) |
GB (1) | GB776025A (en) |
NL (1) | NL194310A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140218139A1 (en) * | 2013-02-01 | 2014-08-07 | General Electric Company | Electrical operator for circuit breaker and method thereof |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55108119A (en) * | 1979-02-13 | 1980-08-19 | Tokyo Shibaura Electric Co | Motorrdriven spring operating device for circuit breaker |
JPS57154739A (en) * | 1981-03-19 | 1982-09-24 | Tokyo Shibaura Electric Co | Device for operating circuit breaker |
FR2523763A1 (en) * | 1982-03-19 | 1983-09-23 | Telemecanique Electrique | REMOVABLE DEVICE FOR LOCKING A CONTACTOR IN ITS WORKING POSITION |
FR2593323B1 (en) * | 1986-01-17 | 1990-10-26 | Merlin Gerin | ELECTROMAGNET WITH A VIBRATING ARMOR FOR ARMING A SPRING OF A CURRENT-BREAKING APPARATUS |
EP0320614B1 (en) * | 1987-12-14 | 1992-09-09 | Sprecher Energie AG | Spring energy accumulator drive for a high voltage switch |
US10319544B2 (en) * | 2017-06-16 | 2019-06-11 | Eaton Intelligent Power Limited | Bolted pressure switch motor arrangement |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE147860C (en) * | ||||
DE645325C (en) * | 1937-05-26 | Allg Elek Citaets Geseelschaft | Energy storage device with an electric motor drive, especially for circuit breakers | |
US10128A (en) * | 1853-10-18 | Improvement in self-winding telegraphic registers | ||
USRE22853E (en) * | 1934-08-15 | 1947-03-18 | Circuit interrupter | |
GB496414A (en) * | 1937-06-30 | 1938-11-30 | English Electric Co Ltd | Improvements in spring mechanism |
GB537180A (en) * | 1939-12-11 | 1941-06-12 | British Thomson Houston Co Ltd | Improvements relating to closing mechanism for an electric circuit breaker |
GB577329A (en) * | 1944-02-01 | 1946-05-14 | Reyrolle A & Co Ltd | Improvements in or relating to spring-operated driving mechanism for electric switchgear |
US2646660A (en) * | 1946-01-11 | 1953-07-28 | Schild Otto | Self-winding clock |
US2674345A (en) * | 1951-10-25 | 1954-04-06 | Gen Electric | Instantaneous latch released energy storing load operating device |
-
0
- BE BE534765D patent/BE534765A/xx unknown
- NL NL194310D patent/NL194310A/xx unknown
-
1954
- 1954-01-28 FR FR1098724D patent/FR1098724A/en not_active Expired
- 1954-12-17 FR FR66247D patent/FR66247E/en not_active Expired
-
1955
- 1955-01-10 US US480951A patent/US2960186A/en not_active Expired - Lifetime
- 1955-01-11 CH CH323443D patent/CH323443A/en unknown
- 1955-01-24 DE DEM25886A patent/DE1086784B/en active Pending
- 1955-01-26 GB GB2312/55A patent/GB776025A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140218139A1 (en) * | 2013-02-01 | 2014-08-07 | General Electric Company | Electrical operator for circuit breaker and method thereof |
US9184014B2 (en) * | 2013-02-01 | 2015-11-10 | General Electric Company | Electrical operator for circuit breaker and method thereof |
Also Published As
Publication number | Publication date |
---|---|
FR1098724A (en) | 1955-08-18 |
BE534765A (en) | |
DE1086784B (en) | 1960-08-11 |
US2960186A (en) | 1960-11-15 |
CH323443A (en) | 1957-07-31 |
NL194310A (en) | |
FR66247E (en) | 1956-06-05 |
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