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EP0331586A1 - Betätigungsmechanismus eines Hilfsauslöseblocks für Modulschutzschalter - Google Patents

Betätigungsmechanismus eines Hilfsauslöseblocks für Modulschutzschalter Download PDF

Info

Publication number
EP0331586A1
EP0331586A1 EP89420031A EP89420031A EP0331586A1 EP 0331586 A1 EP0331586 A1 EP 0331586A1 EP 89420031 A EP89420031 A EP 89420031A EP 89420031 A EP89420031 A EP 89420031A EP 0331586 A1 EP0331586 A1 EP 0331586A1
Authority
EP
European Patent Office
Prior art keywords
lever
relay
plate
trigger
auxiliary
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
EP89420031A
Other languages
English (en)
French (fr)
Other versions
EP0331586B1 (de
Inventor
Patrick De Robertis
Patrick Guillon
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9363999&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0331586(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of EP0331586A1 publication Critical patent/EP0331586A1/de
Application granted granted Critical
Publication of EP0331586B1 publication Critical patent/EP0331586B1/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
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip
    • 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
    • H01H71/1072—Release mechanisms which are reset by opening movement of contacts
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages

Definitions

  • the invention relates to an auxiliary trigger block with molded insulating housing capable of being attached and coupled laterally to a multipole circuit breaker block comprising at least one pair of separable contacts, and a switching mechanism associated with a main magnetothermal trigger, the housing of the auxiliary block containing a control mechanism, which comprises: - a trigger lever controlled by a trigger relay having a control coil and a trigger pin, a mechanical link for transmitting the tripping order issued by the pin of the relay to the switching mechanism of the circuit breaker block, so as to trip the latter by cooperation of the coil of said relay, - a coupling arranged between a lever and a plate, which is pivotally mounted on a first fixed axis between an armed position and a disarmed position, - an energy storage spring urging the plate towards the disarmed position when the coupling is broken caused by the trigger lever, - And an intermediate lever for automatic reset of the relay under the action of the movement of the plate towards the disarmed position, said lever being articulated on a second fixed axi
  • German patent 3114717 which is applied to an undervoltage release for a modular circuit breaker.
  • the relay is reset by the plate acting on the pivoting reset lever on the same axis as the release lever.
  • the mechanical tripping link is coupled to the circuit breaker block by means of a bearing fixed on the lower arm of the tripping lever.
  • the circuit board of the auxiliary block also triggers the switching mechanism of the circuit breaker block, but this tripping is effected with a certain delay after unlocking the latching.
  • the object of the invention is to reduce the tripping time of the mechanism of a circuit breaker block associated with a relay of an auxiliary block.
  • the auxiliary trigger block is characterized in that the plate carries a lug of the mechanical trigger link, and a third articulation axis of the trigger lever, which comprises a first arm cooperating with the latching, and a second separate arm of the relay trigger pin by the reset lever mounted on the second axis to rotate freely.
  • the relay's function consists exclusively in unlocking the latch, which then releases the plate.
  • the mechanical energy available following the expansion of the accumulator spring serves simultaneously to transmit the tripping force of the circuit breaker block, and to reset the relay.
  • the reset lever is equipped with a damping spring on which a protrusion of the plate first acts when it moves towards the disarmed position, the spring being arranged to modulate the reset force exerted on the pin of the relay.
  • the damping spring is advantageously shaped as a pin pre-assembled on the rearming lever before setting place of the latter in the second axis of the housing.
  • a biasing spring is associated with the reset lever to urge it to bear against the trigger lever when the plate is in the armed position. A predetermined distance then separates the trigger pin from the reset lever when the relay is armed.
  • an auxiliary tripping unit 10 with molded insulating housing 12 can be attached and coupled laterally to a multipole circuit breaker unit (not shown) of conjugate shape.
  • Each pole of the circuit breaker block is equipped with a switching mechanism, for example of the type described in French patent application No. 8708037 filed by the applicant on 9/06/1987.
  • the switching mechanism is associated with a pivoting manual control lever, and with a magnetothermic main trip unit intended to monitor the intensity of the current passing through the pole.
  • a pair of separable contacts cooperates with the switching mechanism to interrupt or close the electrical circuit formed between two pole connection terminals.
  • the auxiliary trigger block 10 contains a control mechanism 14 controlled by a reset lever 16, and a relay 18 with trigger coil.
  • the mechanism 14 transmits the trip order from the relay 18 to the circuit breaker block, via a mechanical trip link 19.
  • This connection is formed by a lug 20 passing through an opening 22 of the housing 12 to cooperate with the trip bar (not shown) of the switching mechanism of the circuit breaker block.
  • the auxiliary unit 10 can be arranged either as a differential trigger, or as an undervoltage trigger MN, or as an emission trigger MX.
  • the control mechanism 14 is standard, while the relay 18 is adapted to each type of trip device.
  • the relay 18 is electrically connected to a differential detector with zero sequence transformer for summing the currents flowing through the active input conductors of the circuit breaker block.
  • the differential detector causes the coil of relay 18 to energize, which triggers triggering of the control mechanism 14, and the cascade tripping of the circuit breaker block via the mechanical connection 19.
  • the relay 18 acts when the voltage of the network to be monitored disappears or reaches a value below a predetermined threshold. This results in automatic tripping of the circuit breaker block on lack of voltage.
  • relay 18 In the case of an MX release trip device, the excitation of relay 18 occurs from the outside via a remote control circuit controlled by a push button or a PLC. This results in forced remote triggering of the circuit breaker block.
  • the control mechanism 14 of the auxiliary triggering unit 10 comprises a plate 24 pivotally mounted on a first axis 26 fixed between an armed position ( Figure 1) and a disarmed position ( Figure 3).
  • the plate 24 carries the lug 20 of the mechanical connection 19 for triggering, and a third axis 28 on which is threaded a trigger lever 30 whose first upper arm cooperates in the locked position with a latching lever 31 to form a latching 32.
  • the latching lever 31 is mounted with limited pivoting on an axis 34 of the plate 24, and is coupled to the lever 16 by a transmission link 36.
  • the reset lever 16 is pivotally mounted on a fixed axis 38 , parallel to the axis 26 of the plate 24, and forms with the link 36, a toggle whose articulation point 40 is eccentric relative to the axis 38 of the lever 16.
  • the trigger lever 30 is biased towards the locked position by an elastic tongue 42 acting as a return spring.
  • an intermediate reset lever 44 of the relay 18 Between the relay 18 and the plate 24 is arranged an intermediate reset lever 44 of the relay 18, one of the ends of the lever 44 being mounted for free rotation on a second axis 46.
  • the opposite end 48 cooperates to the left with the stud 50 for actuating the relay 18, and on the right with the second lower arm of the trigger lever 30.
  • a boss 52 on which is a pin-shaped spring 54. L one of the strands 53 of the pin 54 is moved by a projection 56 of the plate 24 when the mechanism 14 is triggered, while the other strand 58 remains permanently in abutment against a projection of the end 48.
  • the accumulator spring 60 of the control mechanism 14 is formed by a torsion spring mounted coaxially on the axis 26 of the plate 24.
  • the spring 60 is supported on a protuberance 62 of the insulating housing 12, and biases the plate 24 in the direction reverse clockwise to the disarmed position ( Figure 3), after the snap 32 commanded by the pin 50 of the trigger relay 18.
  • a stop 64 stops the movement of the plate 24 when the lever 16 arrives in the open position of the circuit breaker (see FIG. 3).
  • the upper edge of the plate 24 is provided with a signaling light 66 capable of being positioned opposite a display orifice 68 formed in the front face of the housing 12 to signal the tripping of the circuit breaker by the action of the mechanism 14 of the auxiliary unit 10.
  • the indicator 66 advantageously includes a colored zone clearly visible through the orifice 68.
  • the lever 16 In the armed position of the auxiliary unit 10, shown in FIG. 1, the lever 16 is in the stable position on the right, and a slight clearance separates the stud 50 from the end 48 of the reset lever 44.
  • the accumulator spring 60 is bandaged, and the locking of the coupling 32 by the trigger lever 30 maintains the kinematic connection between the plate 24 and the lever 16.
  • the trigger pin 50 is propelled in the direction of the arrow F (see FIG. 2), and strikes the reset lever 44 which pivots around the axis 46 in the opposite direction of the Clockwise.
  • the displacement of the reset lever 44 causes the trigger lever 30 from the locked position to the unlocked position so as to break the coupling 32, and to break the kinematic link between the lever 16 and the plate 24.
  • the plate 24 pivots about its axis 26 in the opposite direction of clockwise to the position shown in FIG. 3, by fulfilling two distinct functions, namely a first tripping function of the juxtaposed circuit breaker block, and a second resetting function of relay 18.
  • the first triggering function is provided by the lug 20 of the plate 24 passing the mechanical link 19 from the lowered position (FIG. 2) to the raised position (FIG. 3) along the curvilinear opening 22 of the housing 12. This results in tripping of the circuit breaker block switching mechanism, and the automatic opening of the contacts of the different poles.
  • the second reset function of the relay 18 is operated by the engagement engagement of the projection 56 with the strand 53 of the spring 54 driving the intermediate reset lever 44 clockwise so as to push back the stud 50 from inward release (see Figure 3).
  • the relay18 is reset when the plate 24 comes into contact with the stop 64, and the lever 16 is in the stable position on the left corresponding to the open position of the circuit breaker block. In this position of FIG. 3, the latching 32 is automatically relocked to re-establish the kinematic connection between the lever 16 and the plate 24.
  • the damping spring 54 makes it possible to elastically collect the overshoots of the control mechanism 14, and to limit the reset effort on the pin 50 of the relay 18.
  • the accumulator spring 60 remains disarmed as long as the plate 24 is in abutment against the stop 64.
  • the final reset of the auxiliary unit 10 is effected by a rotation of the lever 16 in a clockwise direction from the left position (Figure 3), to the right position ( Figure 1).
  • This movement of the lever 16 returns the plate 24 from the disarmed position to the armed position, movement during which the accumulator spring 60 is automatically bandaged, and the lug 20 of the trip link-19 is biased towards the lowered inactive position authorizing the closing of the circuit breaker.
  • the rotation of the lever 16 for the final reset of the auxiliary unit 10 can intervene manually or automatically.
  • the lever 16 is independent of the switching mechanism of the adjacent circuit breaker block.
  • the lever 16 is connected to the switching mechanism by a mechanical reset link.
  • the reset lever 44 is provided with a biasing spring 70 which biases said lever 44 in abutment against the second lower arm of the trigger lever 30 when the plate 24 is in the armed position.
  • a constant minimum distance separates the stud 50 from the end 48 of the reset lever 44 (see FIG. 1).
  • This arrangement makes it possible to reduce the response time of the circuit breaker when the tripping order is sent to the switching mechanism.

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EP89420031A 1988-03-04 1989-02-03 Betätigungsmechanismus eines Hilfsauslöseblocks für Modulschutzschalter Expired - Lifetime EP0331586B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8802907 1988-03-04
FR8802907A FR2628262B1 (fr) 1988-03-04 1988-03-04 Mecanisme de commande d'un bloc auxiliaire de declenchement pour disjoncteur modulaire

Publications (2)

Publication Number Publication Date
EP0331586A1 true EP0331586A1 (de) 1989-09-06
EP0331586B1 EP0331586B1 (de) 1993-07-07

Family

ID=9363999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420031A Expired - Lifetime EP0331586B1 (de) 1988-03-04 1989-02-03 Betätigungsmechanismus eines Hilfsauslöseblocks für Modulschutzschalter

Country Status (6)

Country Link
EP (1) EP0331586B1 (de)
JP (1) JP2778974B2 (de)
CN (1) CN1021168C (de)
DE (1) DE68907424T2 (de)
FR (1) FR2628262B1 (de)
ZA (1) ZA891136B (de)

Cited By (11)

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EP0461027A1 (de) * 1990-06-07 1991-12-11 Legrand Differential Auslösevorrichtung
EP0506220A2 (de) * 1991-03-28 1992-09-30 Siemens Energy & Automation, Inc. Elektronische Federspann-Motorsteuerung
EP0813219A1 (de) * 1996-06-10 1997-12-17 Siemens Aktiengesellschaft Unterspannungsauslöser
EP1017080A2 (de) * 1998-12-29 2000-07-05 ABB Ricerca SpA Hilfseinrichtung
EP1069586A2 (de) * 1999-07-15 2001-01-17 Power Controls Iberica, SL Auslösemechanismus für Automatische Schalter
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
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DE1286187B (de) * 1964-04-18 1969-01-02 Licentia Gmbh Verklinkungsmechanismus fuer Ausloeser von Selbstschaltern
DE1904731A1 (de) * 1969-01-31 1970-08-13 Westermeyer Dipl Ing Joseph Elektrischer Kleinselbstschalter
FR2503930A1 (fr) * 1981-04-11 1982-10-15 Licentia Gmbh Declencheur a minimum de tension pour disjoncteurs de puissance
DE3340250A1 (de) * 1983-11-08 1985-05-15 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Fehlerstromschutzschalter(-teil) mit unterspannungsausloesung
EP0144691A1 (de) * 1983-10-29 1985-06-19 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co. Selbstschalter mit Anzeige der Kontaktstellung

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Publication number Priority date Publication date Assignee Title
DE1286187B (de) * 1964-04-18 1969-01-02 Licentia Gmbh Verklinkungsmechanismus fuer Ausloeser von Selbstschaltern
DE1904731A1 (de) * 1969-01-31 1970-08-13 Westermeyer Dipl Ing Joseph Elektrischer Kleinselbstschalter
FR2503930A1 (fr) * 1981-04-11 1982-10-15 Licentia Gmbh Declencheur a minimum de tension pour disjoncteurs de puissance
EP0144691A1 (de) * 1983-10-29 1985-06-19 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co. Selbstschalter mit Anzeige der Kontaktstellung
DE3340250A1 (de) * 1983-11-08 1985-05-15 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Fehlerstromschutzschalter(-teil) mit unterspannungsausloesung

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0461027A1 (de) * 1990-06-07 1991-12-11 Legrand Differential Auslösevorrichtung
FR2663153A1 (fr) * 1990-06-07 1991-12-13 Legrand Sa Dispositif de declenchement differentiel.
EP0506220A2 (de) * 1991-03-28 1992-09-30 Siemens Energy & Automation, Inc. Elektronische Federspann-Motorsteuerung
EP0506220A3 (en) * 1991-03-28 1994-05-18 Siemens Energy & Automat Electronic spring charging motor controller
US5459631A (en) * 1991-03-28 1995-10-17 Siemens Energy & Automation, Inc. Electronic charging motor controller
EP0813219A1 (de) * 1996-06-10 1997-12-17 Siemens Aktiengesellschaft Unterspannungsauslöser
EP1017080A3 (de) * 1998-12-29 2001-08-29 ABB Ricerca SpA Hilfseinrichtung
EP1017080A2 (de) * 1998-12-29 2000-07-05 ABB Ricerca SpA Hilfseinrichtung
EP1069586A2 (de) * 1999-07-15 2001-01-17 Power Controls Iberica, SL Auslösemechanismus für Automatische Schalter
EP1069586A3 (de) * 1999-07-15 2005-11-16 Power Controls Iberica, SL Auslösemechanismus für Automatische Schalter
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
WO2010088875A1 (de) * 2009-02-05 2010-08-12 Siemens Aktiengesellschaft Auslösevorrichtung, insbesondere für leistungsschalter
US8547190B2 (en) 2009-02-05 2013-10-01 Siemens Aktiengesellschaft Tripping apparatus, particularly for circuit breakers
CN101587802B (zh) * 2009-06-18 2012-02-22 德力西电气（宁波）有限公司 一种快速脱扣的断路器
CN101958206B (zh) * 2009-12-09 2013-01-16 上海诺雅克电气有限公司 可实现多控制输入和输出的小型断路器的操作机构
EP3232459A1 (de) * 2016-04-14 2017-10-18 Hager-Electro SAS (Société par Actions Simplifiée) Elektrisches gerät zum leitungsschutz
FR3050313A1 (fr) * 2016-04-14 2017-10-20 Hager-Electro Sas Appareil electrique de protection de ligne

Also Published As

Publication number Publication date
JP2778974B2 (ja) 1998-07-23
CN1021168C (zh) 1993-06-09
ZA891136B (en) 1989-10-25
CN1036862A (zh) 1989-11-01
JPH0210622A (ja) 1990-01-16
FR2628262A1 (fr) 1989-09-08
DE68907424T2 (de) 1994-02-03
EP0331586B1 (de) 1993-07-07
FR2628262B1 (fr) 1995-05-12
DE68907424D1 (de) 1993-08-12

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