EP1628317A2 - Disjoncteur avec indication des fonctions de déclenchement courant de surcharge ou court-circuit et procédé correspondant - Google Patents

Disjoncteur avec indication des fonctions de déclenchement courant de surcharge ou court-circuit et procédé correspondant Download PDF

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Publication number
EP1628317A2
EP1628317A2 EP05107358A EP05107358A EP1628317A2 EP 1628317 A2 EP1628317 A2 EP 1628317A2 EP 05107358 A EP05107358 A EP 05107358A EP 05107358 A EP05107358 A EP 05107358A EP 1628317 A2 EP1628317 A2 EP 1628317A2
Authority
EP
European Patent Office
Prior art keywords
event
overload
circuit
circuit breaker
display
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
EP05107358A
Other languages
German (de)
English (en)
Other versions
EP1628317A3 (fr
EP1628317B1 (fr
Inventor
Ludwig Birkl
Stefan Höhe
Gunther Eckert
Christoph Weber
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1628317A2 publication Critical patent/EP1628317A2/fr
Publication of EP1628317A3 publication Critical patent/EP1628317A3/fr
Application granted granted Critical
Publication of EP1628317B1 publication Critical patent/EP1628317B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • 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
    • H01H71/62—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement
    • 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
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage

Definitions

  • the present invention relates to a protective switching device having an interruptible contact device for conducting current, a short-circuit tripping device for interrupting the contact device in the event of a short circuit and an overcurrent tripping device for interrupting the contact device in the event of an overcurrent event. Moreover, the present invention relates to a corresponding method for indicating a state of a circuit breaker. It is understood by circuit breakers, for example, circuit breaker, circuit breaker, motor protection switch and the like. In the present document, the term "protective switching device” is understood to mean in particular protective switching devices or installation built-in devices.
  • Circuit breakers often have an overload release and a short-circuit release. These two overcurrent trip mechanisms operate independently of each other and trip the circuit breaker in the event of overload or short-circuit current, i. the contacts of the circuit breaker are opened. After tripping and a subsequent elimination of the cause, the circuit breaker can be switched on again. However, to remedy the cause, it is convenient to know whether the circuit breaker has been triggered by an overload current or a short-circuit current. However, such information is not available from circuit breakers currently on the market.
  • Kopp a circuit breaker is known by the company, in which a so-called reset position is provided on the handle.
  • the handle When the circuit breaker is switched off, the handle does not return to the basic position, but instead into this reset or middle position.
  • the handle must first be brought by hand to the basic position to be able to switch on the device again. However, the user does not receive any information as to what the actual reason for the shutdown was, i.e., whether there is an overload or a short circuit.
  • the object of the present invention is therefore to give the user in the case of triggering a circuit breaker information about why the triggering has taken place.
  • this object is achieved by a protective switching device with an interruptible contact device for conducting current and a short-circuit tripping device for interrupting the contact device in a short circuit event and / or an overload trip device for interrupting the contact device in an overload event, and further a display device connected to the short-circuit tripping device and / or the Overload tripping device is connected and clearly with the short-circuit event or the overload event or both clearly separated from each other can be displayed / are.
  • the invention provides a method for indicating a state of a circuit breaker by triggering the circuit breaker by a short circuit event or overload event, specific display of the short circuit event or overload event with a first display variant, non-display or specific display with a second display variant of the other event ,
  • the user can thus visually recognize to which cause the intended triggering of the protective switching device is due. He receives a unique Information about whether the circuit breaker has been switched off by an overload current or a short-circuit current.
  • the display device is mechanically realized and coupled to the respective triggering device.
  • a display device is easy to implement.
  • the mechanical display device may comprise a spring-supported, movable display element. Examples of this would be simple to produce pressure and sliding elements.
  • an electrical display device in which, for example, the causes of the interruption are displayed with one or more LEDs.
  • An electronic detects the switching or tripping movement of the circuit breaker and controls a corresponding display.
  • the display element of the display device is fixed by a movable trigger element of the short-circuit or overload release device or by a pawl in a first, biased position and unlocked by a change in position of the movable member or the pawl for movement to a second position ,
  • the display element can assume a stable position after a short circuit event or an overload event, which can only be left by manual actuation.
  • a switching mechanism of the contact device can be held in a freewheeling position by the display device holding the movable triggering element or the switching mechanism directly in a triggering position when displaying the respective triggering event.
  • the circuit breaker In this freewheeling position, the circuit breaker can not be turned on again and closing the contacts is inhibited. Switching to the freewheeling position has the advantage that the circuit breaker can not be accidentally turned on again. Rather, it is conscious to make an additional release.
  • a short-circuit release 2 is arranged in a circuit breaker whose housing 1 is indicated in principle in the drawing and is shown in an open state.
  • the short-circuit release 2 has a coil 21 which is connected to a fixed contact 3 of the circuit breaker and detects a short-circuit current.
  • the short-circuit release 2 has an armature 22, which protrudes with its proximal end into the coil 21 and is pulled in the presence of a short circuit due to the magnetic field into the interior of the coil 21.
  • the armature 22 is connected to a plunger 23 which moves a release lever 4 of the switching mechanism of the circuit breaker in the event of a short circuit.
  • the cylindrical armature 22 At its distal end, i. at its the end face opposite the plunger 23, the cylindrical armature 22 has a concentric plate 24. Its diameter is slightly larger than that of the armature 22. Therefore, a shoulder forms, to which a leaf spring 5 engages. It serves to reset the armature 22 in a defined horizontal position before and after the short circuit event. Instead of the plate 24, the armature 22, any other any shoulder or a projection to be formed, to which the leaf spring 5 engages.
  • the anchor 22 here with its plate 24, abuts against a vertically arranged pin 6.
  • This pin 6 is displaceable in the vertical direction. For this purpose, it is guided through a recess 11 on the housing 1.
  • a display section 61 of the pin 6 protrudes from the recess 11 (see FIG. In the state shown in FIG 1, the pin 6 is biased by a spring 62 which is supported on a housing portion 12 which also guides the pin 6.
  • the pin 6 also has at its lower, i. the display portion 61 opposite end, a shoulder 63 which is pressed by the spring 62 to the armature 22 and to its plate 24. Thus, the vertical movement of the pin 6 is inhibited upward.
  • the armature 22 is withdrawn from the pin 6 and unlatched with its plunger 23, the trigger lever 4 of the switching mechanism.
  • the pin 6 is no longer held by the shoulder 63 in its normal operating position, but jumps, driven by the spring 62, upwards, as shown in FIG.
  • the display section 61 protrudes from the recess 11 of the housing 1. The display section 61 indicates that the circuit breaker was triggered by a short circuit.
  • the pin has a horizontal direction, i. perpendicular to its Hauptausdehnungsraum, a reinforced stopper portion 64 on.
  • the armature 22 of the short-circuit release 2 is pressed against this reinforced stop section 64 by the leaf spring 5.
  • the trigger lever 4 and thus the switching mechanism is held in a freewheeling position in which the circuit breaker can not be turned on again. Only by pressing the pin 6 vertically down to the normal operating position of the armature 22 jumps back through the leaf spring 5 in its initial position and the release lever 4 in the Verklinkungsposition. The circuit breaker can then be turned on again. This ensures that the pin 6 is again in its normal operating position when it is switched on again and consequently fulfills its function as intended in the event of a renewed short circuit.
  • the display of the short-circuit release by the display section 61 allows the user to immediately recognize which type of fault led to the shutdown and whether a safe restart is possible.
  • a circuit breaker in the OFF state (tripped state) and a display section protruding from the housing must be short-circuited in the circuit. The user is thus informed of a possible error in his system and can react accordingly, for example by consulting a specialist.
  • a separate display for the overload release is therefore not necessary, since the cause of the trip can be clearly removed from the display device for the short-circuit release.
  • the overload release could be provided with a display device, while the short-circuit release has none.
  • the presence of an overload current is displayed directly. Indirectly, this also indicates that a short-circuit must have been present or was switched off manually, if the circuit breaker has tripped and an overload event is not displayed.
  • FIGS. 3 and 4 Another embodiment of the present invention is shown in FIGS. 3 and 4. It relates to an overload release of a circuit breaker with display device.
  • the overload release including the mechanical indicator, is in a normal operating condition, ie. H. before an overload event.
  • the display device comprises a pin 106 which is guided through a recess 111 and a housing portion 112 in the housing 101 of the circuit breaker.
  • the pin 106 also has a display portion 161 and a spring 162 which biases the pin 106 in the non-release position.
  • the pin 106 has a projection 163 extending perpendicular to the longitudinal extent of the pin 106. This projection 163 moves the release lever 104 of the switching mechanism of the circuit breaker, not shown further.
  • a pawl 120 is rotatably mounted on the housing 101.
  • the pawl 120 has a nose 121, which engages in the non-triggering position of the trigger lever 104 and the pin 106 in a recess 164 of the pin 106. In this position, the pawl 120 is held by a sprue spring 122, which on the pawl 120 is molded and is supported on the release lever 104 or a housing portion.
  • the pawl 120 has a projection 123 on which in the non-triggering position of the components shown in FIG 3, a bimetallic strip 130 is applied.
  • the pin 106 is held by the pawl 120 and in particular its nose 121 in the depressed position (non-triggering position) in which the display portion 161 is not or hardly visible to the operator.
  • the bimetal strip 130 now bends according to the current intensity and its duration of action and thus disconnects the switching mechanism. This is done by cooperation of the bimetallic strip 130 and the release lever 104. After triggering, the bimetallic strip bends back into its normal position.
  • the pin 106 driven by the spring 162, springs upwards, so that the display section 161 becomes visible to the user.
  • This triggering or Entklinkungsposition of the components involved is shown in FIG 4.
  • the projection 163 of the pin 106 holds the release lever 104 in a freewheeling position in which the circuit breaker can not be turned on again. Only when the pin 106 is pressed down on its display section 161, the release lever 104 can leave the freewheeling position, so that the circuit breaker can be turned on again. This means that only by a conscious action of the operator of the circuit breaker is ready to start again.
  • the user can immediately recognize which type of fault, in this case overload, led to shutdown and whether a safe switch-on is possible again.
  • a circuit breaker in the OFF position and an "extended" pin 106 the user can close the circuit safely again, because there is only a temporary overload of the circuit. After switching off the inadmissibly high power consumption, the circuit is in order again.
  • a further alternative of a protective switching device according to the invention is that a separate display device is provided both for the short-circuit release and for the overload release. This would have the advantage that also the manual triggering could be distinguished from a tripping by short circuit or overload.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP05107358A 2004-08-19 2005-08-10 Disjoncteur avec indication des fonctions de déclenchement courant de surcharge ou court-circuit et procédé correspondant Not-in-force EP1628317B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004040288A DE102004040288B4 (de) 2004-08-19 2004-08-19 Schutzschalter mit Kurzschluss- und Überlastauslöseanzeige sowie entsprechendes Verfahren

Publications (3)

Publication Number Publication Date
EP1628317A2 true EP1628317A2 (fr) 2006-02-22
EP1628317A3 EP1628317A3 (fr) 2007-05-02
EP1628317B1 EP1628317B1 (fr) 2009-12-30

Family

ID=35207690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05107358A Not-in-force EP1628317B1 (fr) 2004-08-19 2005-08-10 Disjoncteur avec indication des fonctions de déclenchement courant de surcharge ou court-circuit et procédé correspondant

Country Status (3)

Country Link
EP (1) EP1628317B1 (fr)
AT (1) ATE453922T1 (fr)
DE (2) DE102004040288B4 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009124820A1 (fr) * 2008-04-11 2009-10-15 Weidmüller Interface GmbH & Co. KG Circuit électrique comprenant un moyen de signalisation
CN101217081B (zh) * 2007-12-30 2010-12-22 人民电器集团有限公司 具有指示装置的小型断路器
CN101521129B (zh) * 2009-03-17 2011-04-20 湖北盛佳电器设备有限公司 具有短路自锁机构的三相塑壳式断路器
EP2390895A1 (fr) * 2010-05-31 2011-11-30 Siemens Aktiengesellschaft Commutateur, notamment commutateur de puissance pour basses tensions
CN102867706A (zh) * 2012-09-19 2013-01-09 浙江中凯科技股份有限公司 一种用于断路器的脱扣装置
CN103119682A (zh) * 2010-12-21 2013-05-22 松下电器产业株式会社 断路器
EP2701174A1 (fr) * 2012-08-22 2014-02-26 Siemens Aktiengesellschaft Commutateur de puissance miniature
CN103681133A (zh) * 2012-08-31 2014-03-26 西门子公司 开关机构以及机电的保护开关设备
CN103915297A (zh) * 2014-03-25 2014-07-09 上海诺雅克电气有限公司 具有故障指示的断路器
WO2017148637A1 (fr) * 2016-03-03 2017-09-08 Siemens Aktiengesellschaft Dispositif de déclenchement et disjoncteur électromécanique de protection
EP3048630B1 (fr) * 2015-01-22 2020-02-05 Siemens Aktiengesellschaft Dispositif d'affichage et disjoncteur d'arc électrique

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101681746B (zh) * 2008-04-02 2013-09-18 西门子公司 触发机构
DE102011079593B4 (de) 2011-07-21 2021-09-02 Siemens Aktiengesellschaft Elektromechanisches Schutzschaltgerät
DE102012210745A1 (de) * 2012-06-25 2014-01-02 Siemens Aktiengesellschaft Auslösemechanismus
DE102015207204A1 (de) 2015-04-21 2016-10-27 Siemens Aktiengesellschaft Kurzschluss-Auslösevorrichtung, Herstellungsverfahren für eine Magnetspule und elektromechanisches Schutzschaltgerät
DE102016203506B4 (de) 2016-03-03 2021-10-07 Siemens Aktiengesellschaft Auslösevorrichtung und elektromechanisches Schutzschaltgerät
DE102016203508B4 (de) 2016-03-03 2021-06-10 Siemens Aktiengesellschaft Auslösevorrichtung und elektromechanisches Schutzschaltgerät
DE102016210485A1 (de) 2016-06-14 2017-12-14 Siemens Aktiengesellschaft Elektromechanisches Schutzschaltgerät mit einer Überlastauslöseeinrichtung
DE102017202790B4 (de) 2017-02-21 2022-09-08 Siemens Aktiengesellschaft Elektromechanisches Schutzschaltgerät

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905795A (en) * 1957-12-30 1959-09-22 Ite Circuit Breaker Ltd Indicator structure for circuit breakers
US3070682A (en) * 1959-02-17 1962-12-25 Ite Circuit Breaker Ltd Automatic trip indicator and lockout for circuit breakers
US3205325A (en) * 1963-06-19 1965-09-07 Gen Electric Circuit breaker trip device
EP0110010A1 (fr) * 1982-09-28 1984-06-13 Sprecher & Schuh AG Disjoncteur pour moteur
DE19819242A1 (de) * 1998-04-29 1999-11-11 Aeg Niederspannungstech Gmbh Thermomagnetischer Leistungsschalter
EP0997922A2 (fr) * 1998-10-27 2000-05-03 ABBPATENT GmbH Interrupteur avec un indicateur de position ou d'état, notamment pour un disjoncteur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905795A (en) * 1957-12-30 1959-09-22 Ite Circuit Breaker Ltd Indicator structure for circuit breakers
US3070682A (en) * 1959-02-17 1962-12-25 Ite Circuit Breaker Ltd Automatic trip indicator and lockout for circuit breakers
US3205325A (en) * 1963-06-19 1965-09-07 Gen Electric Circuit breaker trip device
EP0110010A1 (fr) * 1982-09-28 1984-06-13 Sprecher & Schuh AG Disjoncteur pour moteur
DE19819242A1 (de) * 1998-04-29 1999-11-11 Aeg Niederspannungstech Gmbh Thermomagnetischer Leistungsschalter
EP0997922A2 (fr) * 1998-10-27 2000-05-03 ABBPATENT GmbH Interrupteur avec un indicateur de position ou d'état, notamment pour un disjoncteur

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101217081B (zh) * 2007-12-30 2010-12-22 人民电器集团有限公司 具有指示装置的小型断路器
WO2009124820A1 (fr) * 2008-04-11 2009-10-15 Weidmüller Interface GmbH & Co. KG Circuit électrique comprenant un moyen de signalisation
US8379362B2 (en) 2008-04-11 2013-02-19 Weidmueller Interface Gmbh & Co. Kg Electrical circuit having a means for signaling
CN101521129B (zh) * 2009-03-17 2011-04-20 湖北盛佳电器设备有限公司 具有短路自锁机构的三相塑壳式断路器
EP2390895A1 (fr) * 2010-05-31 2011-11-30 Siemens Aktiengesellschaft Commutateur, notamment commutateur de puissance pour basses tensions
CN103119682B (zh) * 2010-12-21 2015-12-09 松下电器产业株式会社 断路器
CN103119682A (zh) * 2010-12-21 2013-05-22 松下电器产业株式会社 断路器
CN103632899A (zh) * 2012-08-22 2014-03-12 西门子公司 微型断路器
EP2701174A1 (fr) * 2012-08-22 2014-02-26 Siemens Aktiengesellschaft Commutateur de puissance miniature
CN103632899B (zh) * 2012-08-22 2016-11-09 西门子公司 微型断路器
CN103681133A (zh) * 2012-08-31 2014-03-26 西门子公司 开关机构以及机电的保护开关设备
CN103681133B (zh) * 2012-08-31 2017-07-04 西门子公司 开关机构以及机电的保护开关设备
CN102867706B (zh) * 2012-09-19 2015-03-25 浙江中凯科技股份有限公司 一种用于断路器的脱扣装置
CN102867706A (zh) * 2012-09-19 2013-01-09 浙江中凯科技股份有限公司 一种用于断路器的脱扣装置
CN103915297A (zh) * 2014-03-25 2014-07-09 上海诺雅克电气有限公司 具有故障指示的断路器
CN103915297B (zh) * 2014-03-25 2016-10-05 上海诺雅克电气有限公司 具有故障指示的断路器
EP3048630B1 (fr) * 2015-01-22 2020-02-05 Siemens Aktiengesellschaft Dispositif d'affichage et disjoncteur d'arc électrique
WO2017148637A1 (fr) * 2016-03-03 2017-09-08 Siemens Aktiengesellschaft Dispositif de déclenchement et disjoncteur électromécanique de protection

Also Published As

Publication number Publication date
EP1628317A3 (fr) 2007-05-02
ATE453922T1 (de) 2010-01-15
EP1628317B1 (fr) 2009-12-30
DE102004040288B4 (de) 2007-09-20
DE102004040288A1 (de) 2006-02-23
DE502005008768D1 (de) 2010-02-11

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