EP0186171A2 - Antriebsvorrichtung für einen Leistungsschalter - Google Patents

Antriebsvorrichtung für einen Leistungsschalter Download PDF

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Publication number
EP0186171A2
EP0186171A2 EP85116439A EP85116439A EP0186171A2 EP 0186171 A2 EP0186171 A2 EP 0186171A2 EP 85116439 A EP85116439 A EP 85116439A EP 85116439 A EP85116439 A EP 85116439A EP 0186171 A2 EP0186171 A2 EP 0186171A2
Authority
EP
European Patent Office
Prior art keywords
closing
spring
latch
shaft
circuit breaker
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.)
Ceased
Application number
EP85116439A
Other languages
English (en)
French (fr)
Other versions
EP0186171A3 (de
Inventor
Olle Ekwall
Leif Sköld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ASEA AB filed Critical ASEA AB
Publication of EP0186171A2 publication Critical patent/EP0186171A2/de
Publication of EP0186171A3 publication Critical patent/EP0186171A3/de
Ceased legal-status Critical Current

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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

Definitions

  • the invention relates to an operating device for circuit breakers according to the precharacterising part of claim 1.
  • the operating device is primarily intended for metal-enclosed circuit breakers, insulated with sulphurhexafluoride (SF 6 ) gas, but it may be used for other types of circuit breakers as well.
  • SF 6 sulphurhexafluoride
  • puffer type SF 6 circuit breakers requires considerable operating energy. Since, in addition, short operating times are required, the movable parts of the operating device should be designed with as little a mass as possible. It is known to use for such operation pneumatic or hydraulic operating devices with pressurized gas as energy accumulator. However, such operating devices with associated compressors, pumps and other auxiliary equipment are relatively expensive. Normally, therefore, mechanical operating devices working without compressed air are preferred.
  • the invention aims at developing an operating device of the above-mentioned kind which requires less space in the horizontal plane than comparable prior art designs and which is especially suitable for use for SF 6 circuit breakers with an earthed metal tank enclosure.
  • the invention suggests an operating device for circuit breakers according to the introductory part of claim 1, which is characterized by the features of the characterizing part of claim 1.
  • the operating device can advantageously be placed below the circuit breaker, which eliminates the need of special floor or ground space for the operating device.
  • An exceedingly suitable embodiment of the invention is characterized in that both the opening spring and the closing spring of the operating device are of the spirally wound flat rod or ribbon type. With such springs an extremely compact embodiment of the operating device, in relation to its operating energy storing capacity, is achievable.
  • the operating device shown in Figure 1 is built into a mechanism housing (not shown) and comprises an opening spring 1 and a closing spring 2. Both springs are of the spirally. wound flat rod or ribbon type, and each spring exerts a torsional moment on a corresponding shaft, namely, an operating shaft 3 and a driving shaft 4, respectively.
  • the shafts 3 and 4 are aligned with each other, and their confronting ends are provided with a connection mechanism comprising a star wheel 6 fixed on the driving shaft 4 and a two-armed carrier 5 fixed on the operating shaft 3.
  • One arm 51 of the carrier 5 supports a carrier latch 53 which cooperates with the star wheel 6, the second arm 52 being arranged to cooperate with an opening latch 7.
  • the operating shaft 3 is connected to the circuit breaker by way of a lever 31 and a linkage (not shown).
  • the opening spring 1 is tensioned and its shaft 3 hooked up on the opening latch 7.
  • This position of the shaft which corresponds to the closed position of the circuit breaker, is shown in unbroken lines in Figure 1.
  • the opening latch 7 is released, and the opening spring 1 rotates the shaft 3 so that the circuit breaker is opened.
  • the operating shaft 3 operates back and forth between the two shown fixed positions.
  • the closing spring 2 has its inner end fixed to the driving shaft 4 and its outer end fixed to a member 21 rotatable on the driving shaft 4, said member 21 suitably consisting of a wheel or a cylindrical drum surrounding the spring 2.
  • the spring 2 can be tensioned by rotating the drum with the aid of a motor 22 via a suitable transmission means, for example a belt 23.
  • the shaft is kept locked by a closing latch 8 which hooks up one of the arms of the star wheel 6. Closing of the circuit breaker takes place by releasing the closing latch 8, whereby another one of the arms of the star wheel 6 engages with the carrier latch 53 of the operating shaft 3 and rotates the latter through an angle corresponding to one step of the star wheel 6, which represents the movement of the entire operating shaft.
  • the star wheel 6 may have two, three, four or more arms, depending on whether the operating shaft 3 with its spring 1 has been designed for a torsional angle of 180°, 120°, 90°, etc.
  • Figure 2 shows functions of the torsional angle of the operating shaft 3 and for the three arms 61-63 of the star wheel 6 plotted against the time t during three successive closing and opening operations.
  • the movement curve of the operating shaft 3 is drawn in unbroken line, whereas the curves for the arms 61, 62 and 63 are drawn in dashed, dash- dotted and double dotted dashed lines, respectively.
  • the operating shaft 3 rotates back and forth between these two positions.
  • the closing latch 8 Upon a closing operation, the closing latch 8 is released at the time t 1 .
  • the device is ready to make an opening operation, which in the example shown is performed between times t 3 and t 4 .
  • the drive motor 22 starts and tensions the closing spring, the device then being ready for the next closing operation. This time the arm 62 engages the carrier latch 53, and the procedure is repeated.
  • Figures 3 and 4 show in more detail an embodiment of the connection mechanism between the two shafts 3, 4, namely, when the system (circuit breaker and operating device) is in the open position ( Figure 3), and when the system is in the closed position ( Figure 4).
  • the star wheel 6 is provided with four arms 61-64, but otherwise this embodiment does not differ from the one shown in Figure 1.
  • the carrier latch 5 and the opening latch 7 are positioned in a rear plane
  • the star wheel 6, the closing latch 8 and the carrier latch 53 are positioned in an front plane.
  • the latch means 7 and 8 consist of roller-type ratchets, which can be released by an opening and closing magnet, respectively (not shown).
  • the carrier latch 53 consists of two cascade-connected roller-type ratchets 53, 54, which are released when a sliding surface 55 on the smaller latch 54 contacts the stationarily arranged disengaging projection 9.
  • the free end portion of the carrier arm 52 is provided with a spring-loaded locking flap 56, which is arranged so that the arm 52 can pass freely past the opening latch 7 by the back way.
  • Each one of the springs 1 and 2 may consist of a plurality of spiral spring elements arranged adjacent each other.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
EP85116439A 1984-12-28 1985-12-21 Antriebsvorrichtung für einen Leistungsschalter Ceased EP0186171A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8406647A SE449146B (sv) 1984-12-28 1984-12-28 Manoverdon for strombrytare
SE8406647 1984-12-28

Publications (2)

Publication Number Publication Date
EP0186171A2 true EP0186171A2 (de) 1986-07-02
EP0186171A3 EP0186171A3 (de) 1988-12-21

Family

ID=20358329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116439A Ceased EP0186171A3 (de) 1984-12-28 1985-12-21 Antriebsvorrichtung für einen Leistungsschalter

Country Status (3)

Country Link
EP (1) EP0186171A3 (de)
JP (1) JPS61161628A (de)
SE (1) SE449146B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448030A (en) * 1992-08-07 1995-09-05 Hitachi, Ltd. Gas insulated circuit breaker
RU2110105C1 (ru) * 1996-03-19 1998-04-27 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Приводной механизм выключателя
RU2128379C1 (ru) * 1996-02-27 1999-03-27 Российский федеральный ядерный центр - Всероссийский НИИ. экспериментальной физики Приводной механизм выключателя
FR2938692A1 (fr) * 2008-11-20 2010-05-21 Areva T & D Sa Commande d'appareillage electrique haute ou moyenne tension a mecanisme a double accrochage ameliore et procede d'armement associe.
US8338732B2 (en) * 2009-11-03 2012-12-25 Abb Technology Ag Spring operated actuator for an electrical switching apparatus
WO2014173732A1 (en) * 2013-04-25 2014-10-30 Siemens Aktiengesellschaft Drive mechanism for circuit breaker
US20150364272A1 (en) * 2013-03-08 2015-12-17 Siemens Aktiengesellschaft Switch, in particular power switch, for low voltages
GB2533372A (en) * 2014-12-18 2016-06-22 Eaton Ind (Netherlands) B V Device for operating a switching device
US20170207038A1 (en) * 2016-01-14 2017-07-20 Hyundai Heavy Industries Co., Ltd. Spring operation device of circuit breaker
GB2585835A (en) * 2019-07-16 2021-01-27 Eaton Intelligent Power Ltd Relay
GB2605853A (en) * 2021-04-15 2022-10-19 Eaton Intelligent Power Ltd Operating mechanism for a switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104766730B (zh) * 2014-11-17 2017-09-26 平高集团有限公司 高压开关及其机械操动机构

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH208242A (de) * 1939-01-07 1940-01-15 Oerlikon Maschf Einschaltvorrichtung für elektrische Schalter mit Spiralfeder als Kraftspeicher.
FR1378066A (fr) * 1963-07-20 1964-11-13 Merlin Gerin Dispositif de commande à accumulation d'énergie, notamment pour interrupteurs électriques

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448030A (en) * 1992-08-07 1995-09-05 Hitachi, Ltd. Gas insulated circuit breaker
RU2128379C1 (ru) * 1996-02-27 1999-03-27 Российский федеральный ядерный центр - Всероссийский НИИ. экспериментальной физики Приводной механизм выключателя
RU2110105C1 (ru) * 1996-03-19 1998-04-27 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Приводной механизм выключателя
FR2938692A1 (fr) * 2008-11-20 2010-05-21 Areva T & D Sa Commande d'appareillage electrique haute ou moyenne tension a mecanisme a double accrochage ameliore et procede d'armement associe.
EP2189995A2 (de) 2008-11-20 2010-05-26 Areva T&D Sas Steuerung eines elektrischen Hoch- oder Mittelspannungsgerätes mit einem verbesserten doppelten Einrastmechanismus und entsprechendes Bestückungsverfahren
EP2189995A3 (de) * 2008-11-20 2010-06-23 Areva T&D Sas Steuerung eines elektrischen Hoch- oder Mittelspannungsgerätes mit einem verbesserten doppelten Einrastmechanismus und entsprechendes Bestückungsverfahren
US8338732B2 (en) * 2009-11-03 2012-12-25 Abb Technology Ag Spring operated actuator for an electrical switching apparatus
US20150364272A1 (en) * 2013-03-08 2015-12-17 Siemens Aktiengesellschaft Switch, in particular power switch, for low voltages
US10147566B2 (en) * 2013-03-08 2018-12-04 Siemens Aktiengesellschaft Switch, in particular power switch, for low voltages
WO2014173732A1 (en) * 2013-04-25 2014-10-30 Siemens Aktiengesellschaft Drive mechanism for circuit breaker
GB2533372A (en) * 2014-12-18 2016-06-22 Eaton Ind (Netherlands) B V Device for operating a switching device
US20170207038A1 (en) * 2016-01-14 2017-07-20 Hyundai Heavy Industries Co., Ltd. Spring operation device of circuit breaker
CN106971900A (zh) * 2016-01-14 2017-07-21 现代重工业株式会社 断路器的弹簧操作装置
EP3200212A1 (de) * 2016-01-14 2017-08-02 Hyundai Heavy Industries Co., Ltd. Federbetriebsvorrichtung eines schutzschalters
US10026567B2 (en) 2016-01-14 2018-07-17 Hyundai Electric & Energy Systems Co., Ltd. Spring operation device of circuit breaker
GB2585835A (en) * 2019-07-16 2021-01-27 Eaton Intelligent Power Ltd Relay
GB2585835B (en) * 2019-07-16 2023-07-19 Eaton Intelligent Power Ltd Relay
US12033822B2 (en) 2019-07-16 2024-07-09 Eaton Intelligent Power Limited Ultra-fast polarized relay for hybrid switching systems
GB2605853A (en) * 2021-04-15 2022-10-19 Eaton Intelligent Power Ltd Operating mechanism for a switch

Also Published As

Publication number Publication date
EP0186171A3 (de) 1988-12-21
SE8406647L (sv) 1986-06-29
SE8406647D0 (sv) 1984-12-28
JPS61161628A (ja) 1986-07-22
SE449146B (sv) 1987-04-06

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