EP0452230A1 - Antriebsmechanismus für Schutzschalter - Google Patents

Antriebsmechanismus für Schutzschalter Download PDF

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Publication number
EP0452230A1
EP0452230A1 EP91420108A EP91420108A EP0452230A1 EP 0452230 A1 EP0452230 A1 EP 0452230A1 EP 91420108 A EP91420108 A EP 91420108A EP 91420108 A EP91420108 A EP 91420108A EP 0452230 A1 EP0452230 A1 EP 0452230A1
Authority
EP
European Patent Office
Prior art keywords
indicator
lever
arm
control mechanism
nose
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.)
Granted
Application number
EP91420108A
Other languages
English (en)
French (fr)
Other versions
EP0452230B1 (de
Inventor
Michel Lazareth
Noel Lecorre
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of EP0452230A1 publication Critical patent/EP0452230A1/de
Application granted granted Critical
Publication of EP0452230B1 publication Critical patent/EP0452230B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

Definitions

  • the invention relates to a control mechanism for an electrical circuit breaker with an insulating housing enclosing a pair of fixed and movable contacts, said movable contact being carried by a contact arm actuated by the mechanism, which comprises a lever pivotally mounted on an axis. and movable in an orifice of the case between two extreme positions F for closing and O for opening, a transmission link coupled to the lever to form a toggle joint, a breakable mechanical connection between the link and a support lever for the contact arm, a trip lever for locking and unlocking the mechanical connection, and a mechanical indicator of the state of the circuit breaker having an indicator light capable of occupying an active position visible from the outside in the position O of opening of the lever.
  • the object of the invention is to improve the reliability of a mechanical indicator of the state of a circuit breaker by making it insensitive to the test force exerted on the handle.
  • the mechanism according to the invention is characterized in that the indicator comprises a bistable lever mounted for free rotation on the axis of the lever, and cooperating with a nose of the lever support intended to lock the indicator and make it invisible in a stable inactive position, when the lever is actuated from the closed F position to the open O position in the event of soldering of the contacts.
  • the bistable arrangement of the indicator allows the open or closed state of the contacts to be recognized in complete safety.
  • the indicator is only visible in the active position, corresponding to the opening position of the lever after separation of the contacts.
  • the indicator is invisible in the inactive position when the contacts are closed normally or by accidental welding.
  • the indicator is insensitive to the test force exerted on the lever, given its cooperation with the support arm of the contact arm.
  • the indicator lever includes a first signaling arm on which the indicator is arranged, and a second control arm cooperating with the nose, the two arms being angularly offset from each other by a predetermined angle, centered on the axis of the joystick.
  • the indicator is returned to the inactive position by means of the action of the lever on the first arm.
  • the mechanism is equipped with a mechanical device for locking the handle in an intermediate position S in the event of contact welding. This results in a fully visible cut-off function with contact position indicator.
  • the mechanism 10 is housed in the insulating case 12 of the circuit breaker, and is intended to actuate a movable contact arm 13 having a contact piece 14 cooperating with a fixed contact 16.
  • the mechanism 10 comprises a lever 18 pivotally coupled to a transmission link 20 to form a toggle switch 22, and a plate 24 mounted with limited rotation on a pivot 26 between a closed position and an open position of the contacts 14, 16.
  • On the pivot 26 is threaded a support lever 28 insulating the arm from this contact 13.
  • a mechanical connection 30 with a breakable connecting rod is formed by a second toggle joint having a hooking hook 32 pivotally mounted on an axis 34 of the plate 24 while being articulated to the connecting rod 20 of transmission.
  • a trigger lever 36 is mounted on an axis 38 of the plate 24 and cooperates with the retaining spout of the latching hook 32 to ensure the locking and unlocking of the mechanical connection 30.
  • the lever 18 projects from an orifice 40 in the housing 12 and is pivotally mounted on an axis 42 between two extreme positions F and 0 corresponding respectively to the closing and the opening of the contacts 14,16.
  • the mechanism 10 is provided with a mechanical indicator 50 formed by a bistable lever (fig. 1 to 4) mounted for free rotation on the axis 42 of the lever 18.
  • a return spring (not shown) requests the indicator 50 anticlockwise corresponding to the direction of opening of the lever 18.
  • the indicator 50 comprises a first signaling arm 52 whose side face carries a colored light 54 and a second arm 54 of control equipped with a step 55 capable of cooperating with a nose 56 of the support lever 28.
  • the first and second arms 52, 54 are angularly offset from each other by an acute angle centered on the axis 42 of the lever 18.
  • the two opposite flanks of the second arm 54 come into engagement with a pair of end-of-travel stops 58.60, secured to the housing 12 to delimit the angular travel of the indicator 50.
  • the indicator 50 is in a first stable inactive position, in which the indicator 54 of the first arm 52 remains invisible from the outside.
  • the contact arm 13 and its support lever 28 remain fixed, and the nose 56 blocks the step 55 of the first arm 54 to maintain the indicator 50 in the first stable position, when the operator attempts to actuate the lever 18 towards the open position.
  • the indicator 54 remains invisible when the lever 18 is between the intermediate position S and the open position O.
  • the lever 18 In the event of non-welding of the contacts 14, 16 following a manual opening or an automatic triggering of the mechanism 10, the lever 18 is moved to the left position 0, and the nose 56 of the support lever 28 no longer interferes with the step 55 of the first arm 54.
  • the absence of blocking of the nose 56 on the second arm 54 and of the boss 62 of the lever 18 on the first arm 52 authorizes the pivoting of the indicator anticlockwise 50 to the second stable active position (fig. 4) under the action of the return spring.
  • the second arm 54 bears against the second stop 60, and the appearance of the indicator 54 outside the orifice 40 signals the effective opening of the contacts 14, 16.
  • the reclosing of the circuit breaker is effected by displacement of the handle 18 from position 0 to position F.
  • the boss 62 of the handle 18 pushes the first arm 52 in the direction of the needles d 'a watch, and automatically returns the indicator 50 to the first stable position against the return force of the spring.
  • the indicator 54 can occupy two stable positions, one of which corresponding to the visible state indicates the separation of the contacts 14,16, and the other of which corresponding to the invisible state, signals the normal or welded closure of the contacts 14.16.
  • the display function is performed by a separate part of the handle 18. By its cooperation with the nose 56 of the support lever 28, the bistable indicator 50 is insensitive to the test force exerted on the handle 18. The indicator 50 will remain in the first inactive position if the lever 18 is forced towards the open position O in the event of soldering of the contacts.
  • the variant of the indicator 150 illustrated in FIGS. 5 to 7 uses an additional drive spring 66 arranged between the nose 56 of the support lever 28 and the second arm 154.
  • the spring 66 is shaped as a twist pin positioned on a stud 68 of the housing 12.
  • the ends of the spring 66 can move in oblong openings 70, 72 made respectively in the second arm 154, and the nose 56.
  • the step 55 is eliminated, and the rest of the mechanism is identical to that of FIGS. 1 to 4.
  • the operation of the indicator 150 in FIGS. 5 to 7 is similar to that described above, with the difference that the spring 66 plays the role of stroke amplifier, particularly recommended in a single-pole and neutral circuit breaker, in which the two arms of phase and neutral contact are slightly angularly offset.
  • the indicator 250 comprises a first signaling arm 252, the indicator 54 of which is shaped in a circular sector having a diameter close to that of the base 80 of the lever 18.
  • the diameter of the second control arm 254 with step 255 is greater than that of the first arm 252.
  • the indicator 54 remains invisible by being blocked in the first inactive position by the action of the nose 56 on the step 255, even when the lever 18 is forced towards the open position O .
  • the second arm 254 is in abutment against a stop 86 of the base 80.
  • the mechanism 10 is equipped with a device for blocking the lever 18 in the event of welding of the contacts 14, 16.
  • the hooking hook 32 is equipped with a protrusion 144 coming into engagement against a stop integral with the housing 12 in the closed-welded state of the contacts 14, 16, to stop the lever 18 in a predetermined intermediate position S, located between the extreme positions F and O.
  • the passing of the dead center of the toggle switch 22 makes it stable said intermediate position S of the lever 18.
  • the indicator 54 remains invisible in this position.
  • the locking of the lever 18 in the position S is effected by the engagement of the protrusion 144 against the stop of the housing 12, which collects the force exerted on the lever 18 in the event of forced actuation.

Landscapes

  • Breakers (AREA)
  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Lock And Its Accessories (AREA)
EP91420108A 1990-04-09 1991-03-29 Antriebsmechanismus für Schutzschalter Expired - Lifetime EP0452230B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9004642A FR2660794B1 (fr) 1990-04-09 1990-04-09 Mecanisme de commande d'un disjoncteur electrique.
FR9004642 1990-04-09

Publications (2)

Publication Number Publication Date
EP0452230A1 true EP0452230A1 (de) 1991-10-16
EP0452230B1 EP0452230B1 (de) 1994-12-07

Family

ID=9395658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91420108A Expired - Lifetime EP0452230B1 (de) 1990-04-09 1991-03-29 Antriebsmechanismus für Schutzschalter

Country Status (5)

Country Link
EP (1) EP0452230B1 (de)
AT (1) ATE115329T1 (de)
DE (1) DE69105591T2 (de)
ES (1) ES2067899T3 (de)
FR (1) FR2660794B1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
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EP0897186A3 (de) * 1997-08-14 1999-08-04 Siemens Aktiengesellschaft Schaltmechanismus für einen Schulzschalter
DE19919418A1 (de) * 1999-04-28 2000-11-02 Siemens Ag Schutzschalter mit Schaltstellungsanzeige
US6239395B1 (en) * 1999-10-14 2001-05-29 General Electric Company Auxiliary position switch assembly for a circuit breaker
EP1111644A1 (de) * 1999-12-21 2001-06-27 Hager Electro S.A. Sichereitsvorrichtung für elektrisches Gerät
EP1143477A1 (de) * 2000-04-07 2001-10-10 Hager Electro S.A. Sicherheitseinrichtung für elektrisches Gerät vom Schutzschalter Typ
EP1039499A3 (de) * 1999-03-23 2002-09-11 General Electric Company Betätigungshebeleinheit für elektrische Lastschalter
FR2859816A1 (fr) * 2003-09-11 2005-03-18 Legrand Sa Dispositif de coupure de courant electrique a discrimination complete d'etats
US6919785B2 (en) 2000-05-16 2005-07-19 General Electric Company Pressure sensitive trip mechanism for a rotary breaker
US6995640B2 (en) 2000-05-16 2006-02-07 General Electric Company Pressure sensitive trip mechanism for circuit breakers
EP2061058A1 (de) 2007-11-16 2009-05-20 Schneider Electric Industries SAS Steuervorrichtung für ein elektrisches Unterbrechungsgerät und elektrisches Unterbrechungsgerät, das damit ausgestattet ist
FR2931998A1 (fr) * 2008-06-03 2009-12-04 Schneider Electric Ind Sas Dispositif de commande d'un appareil de coupure electrique comportant un dispositif de signalisation de la soudure des contacts, et appareil de coupure electrique comportant un tel dispositif
CN102426999A (zh) * 2011-09-13 2012-04-25 浙江正泰电器股份有限公司 模数化断路器的操作机构
US20140070953A1 (en) * 2012-09-13 2014-03-13 Schneider Electric Industries Sas Relay and a method for indicating a relay failure

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AT404647B (de) * 1996-02-26 1999-01-25 Felten & Guilleaume Ag Oester Elektrischer schutzschalter
IT1292453B1 (it) 1997-07-02 1999-02-08 Aeg Niederspannungstech Gmbh Gruppo rotante di contatti per interrutttori di alta portata
DE19735408B4 (de) * 1997-08-14 2008-04-10 Siemens Ag Schaltmechanismus für einen Schutzschalter
DE19819242B4 (de) 1998-04-29 2005-11-10 Ge Power Controls Polska Sp.Z.O.O. Thermomagnetischer Leistungsschalter
US6114641A (en) 1998-05-29 2000-09-05 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6087913A (en) 1998-11-20 2000-07-11 General Electric Company Circuit breaker mechanism for a rotary contact system
US6037555A (en) 1999-01-05 2000-03-14 General Electric Company Rotary contact circuit breaker venting arrangement including current transformer
US6262872B1 (en) 1999-06-03 2001-07-17 General Electric Company Electronic trip unit with user-adjustable sensitivity to current spikes
US6268991B1 (en) 1999-06-25 2001-07-31 General Electric Company Method and arrangement for customizing electronic circuit interrupters
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US6188036B1 (en) 1999-08-03 2001-02-13 General Electric Company Bottom vented circuit breaker capable of top down assembly onto equipment
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US6252365B1 (en) 1999-08-17 2001-06-26 General Electric Company Breaker/starter with auto-configurable trip unit
US6396369B1 (en) 1999-08-27 2002-05-28 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6175288B1 (en) 1999-08-27 2001-01-16 General Electric Company Supplemental trip unit for rotary circuit interrupters
US6232570B1 (en) 1999-09-16 2001-05-15 General Electric Company Arcing contact arrangement
US6326869B1 (en) 1999-09-23 2001-12-04 General Electric Company Clapper armature system for a circuit breaker
US6229413B1 (en) 1999-10-19 2001-05-08 General Electric Company Support of stationary conductors for a circuit breaker
US6317018B1 (en) 1999-10-26 2001-11-13 General Electric Company Circuit breaker mechanism
US6232856B1 (en) 1999-11-02 2001-05-15 General Electric Company Magnetic shunt assembly
EP1098343B1 (de) 1999-11-03 2005-09-21 AEG Niederspannungstechnik GmbH & Co. KG Drehkontaktanordnung für Schutzschalter
US6377144B1 (en) 1999-11-03 2002-04-23 General Electric Company Molded case circuit breaker base and mid-cover assembly
US6300586B1 (en) 1999-12-09 2001-10-09 General Electric Company Arc runner retaining feature
US6310307B1 (en) 1999-12-17 2001-10-30 General Electric Company Circuit breaker rotary contact arm arrangement
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DE1055102B (de) * 1956-06-21 1959-04-16 Wickmann Werke Ag UEberstromschalter
EP0144691A1 (de) * 1983-10-29 1985-06-19 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co. Selbstschalter mit Anzeige der Kontaktstellung
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EP0231732A2 (de) * 1985-12-02 1987-08-12 Felten & Guilleaume Fabrik elektrischer Apparate Aktiengesellschaft Fehlerstrom- und Leitungsschutzschalter
EP0342133A1 (de) * 1988-05-13 1989-11-15 Merlin Gerin Betätigungsmechanismus für Kleinschalter mit Anzeige einer Kontaktschweissung

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0897186A3 (de) * 1997-08-14 1999-08-04 Siemens Aktiengesellschaft Schaltmechanismus für einen Schulzschalter
EP1039499A3 (de) * 1999-03-23 2002-09-11 General Electric Company Betätigungshebeleinheit für elektrische Lastschalter
DE19919418A1 (de) * 1999-04-28 2000-11-02 Siemens Ag Schutzschalter mit Schaltstellungsanzeige
US6239395B1 (en) * 1999-10-14 2001-05-29 General Electric Company Auxiliary position switch assembly for a circuit breaker
EP1111644A1 (de) * 1999-12-21 2001-06-27 Hager Electro S.A. Sichereitsvorrichtung für elektrisches Gerät
EP1143477A1 (de) * 2000-04-07 2001-10-10 Hager Electro S.A. Sicherheitseinrichtung für elektrisches Gerät vom Schutzschalter Typ
US6919785B2 (en) 2000-05-16 2005-07-19 General Electric Company Pressure sensitive trip mechanism for a rotary breaker
US6995640B2 (en) 2000-05-16 2006-02-07 General Electric Company Pressure sensitive trip mechanism for circuit breakers
FR2859816A1 (fr) * 2003-09-11 2005-03-18 Legrand Sa Dispositif de coupure de courant electrique a discrimination complete d'etats
WO2005027169A1 (fr) * 2003-09-11 2005-03-24 Legrand France Dispositif de coupure de courant electrique a discrimination complete d'etats.
RU2310943C2 (ru) * 2003-09-11 2007-11-20 Легран Франс Электрическое устройство отключения с полным различением состояния
CN101436470A (zh) * 2007-11-16 2009-05-20 施耐德电器工业公司 电开关设备及其操作装置
EP2061058A1 (de) 2007-11-16 2009-05-20 Schneider Electric Industries SAS Steuervorrichtung für ein elektrisches Unterbrechungsgerät und elektrisches Unterbrechungsgerät, das damit ausgestattet ist
CN101436470B (zh) * 2007-11-16 2013-12-18 施耐德电器工业公司 电开关设备及其操作装置
FR2931998A1 (fr) * 2008-06-03 2009-12-04 Schneider Electric Ind Sas Dispositif de commande d'un appareil de coupure electrique comportant un dispositif de signalisation de la soudure des contacts, et appareil de coupure electrique comportant un tel dispositif
EP2131378A1 (de) * 2008-06-03 2009-12-09 Schneider Electric Industries SAS Steuervorrichtung für ein elektrisches Unterbrechungsgerät, das mit einer Signalisierungsvorrichtung für die Verschweißung der Kontakte ausgestattet ist, und mit dieser Vorrichtung ausgestattetes elektrisches Unterbrechungsgerät
CN101599394A (zh) * 2008-06-03 2009-12-09 施耐德电器工业公司 电气开关单元的控制设备和包括该设备的电气开关单元
AU2009202174B2 (en) * 2008-06-03 2014-12-04 Schneider Electric Industries Sas Control device of an electrical switchgear unit comprising a device for indicating welding of the contacts, and an electrical switchgear unit comprising one such device
AU2009202174B9 (en) * 2008-06-03 2015-04-23 Schneider Electric Industries Sas Control device of an electrical switchgear unit comprising a device for indicating welding of the contacts, and an electrical switchgear unit comprising one such device
CN101599394B (zh) * 2008-06-03 2015-05-20 施耐德电器工业公司 电气开关单元的控制设备和包括该设备的电气开关单元
CN102426999A (zh) * 2011-09-13 2012-04-25 浙江正泰电器股份有限公司 模数化断路器的操作机构
CN102426999B (zh) * 2011-09-13 2014-11-19 浙江正泰电器股份有限公司 模数化断路器的操作机构
US20140070953A1 (en) * 2012-09-13 2014-03-13 Schneider Electric Industries Sas Relay and a method for indicating a relay failure
US9543098B2 (en) * 2012-09-13 2017-01-10 Schneider Electric Industries Sas Relay and a method for indicating a relay failure

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FR2660794B1 (fr) 1996-07-26
FR2660794A1 (fr) 1991-10-11
ATE115329T1 (de) 1994-12-15
DE69105591D1 (de) 1995-01-19
ES2067899T3 (es) 1995-04-01
EP0452230B1 (de) 1994-12-07
DE69105591T2 (de) 1995-06-08

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