[go: up one dir, main page]

EP2584582A1 - Baureihe mehrpoliger Leistungsschalter - Google Patents

Baureihe mehrpoliger Leistungsschalter Download PDF

Info

Publication number
EP2584582A1
EP2584582A1 EP11185442.8A EP11185442A EP2584582A1 EP 2584582 A1 EP2584582 A1 EP 2584582A1 EP 11185442 A EP11185442 A EP 11185442A EP 2584582 A1 EP2584582 A1 EP 2584582A1
Authority
EP
European Patent Office
Prior art keywords
trigger
release
lever
series
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.)
Withdrawn
Application number
EP11185442.8A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gregor Fleitmann
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.)
Eaton Industries GmbH
Original Assignee
Eaton Industries GmbH
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 Eaton Industries GmbH filed Critical Eaton Industries GmbH
Priority to EP11185442.8A priority Critical patent/EP2584582A1/de
Priority to BR112014009331A priority patent/BR112014009331A2/pt
Priority to EP12772793.1A priority patent/EP2769399B1/de
Priority to PCT/EP2012/070587 priority patent/WO2013057147A1/de
Priority to CN201280050816.4A priority patent/CN103875053B/zh
Publication of EP2584582A1 publication Critical patent/EP2584582A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • H01H83/12—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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H2011/0093—Standardization, e.g. limiting the factory stock by limiting the number of unique, i.e. different components
    • 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
    • H01H2083/205—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 having shunt or UVR tripping device with integrated mechanical energy accumulator
    • 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

Definitions

  • the invention relates to a series of multi-pole circuit breaker different sizes different nominal current capacity with an undervoltage or shunt trip, hereinafter referred to as a U / A trigger.
  • circuit breakers can be equipped with a U / A release, in addition to thermomagnetic releases, for example according to document EP 619590 B1 ,
  • An undervoltage release is an electromagnet which actuates the tripping mechanism of the circuit breaker when the power is interrupted. In the current-carrying state, the system is in rest position. The control takes place with a normally closed contact. Undervoltage release trigger in case of power failure, the switch to z. B. to prevent the automatic restart of engines.
  • a shunt release is an electromagnet that actuates the tripping mechanism of the circuit breaker when a voltage is applied. When de-energized, the system is at rest. The activation takes place with a closing contact. Shunt releases are used for remote release when z. B. a voltage interruption should not lead to automatic shutdown.
  • the circuit breaker can not be switched on.
  • the U / A release prematurely releases before touching the main contacts of the circuit breaker.
  • the disadvantage is that for circuit breaker different nominal current capacity because of the increasing size with increasing size of the required tripping energy differently designed U / A triggers must be used.
  • the required number of types of U / A triggers requires a lot of effort for the large number of individual parts and their logistical integration into the manufacturing process of the U / A triggers.
  • U / A trigger in which an energy storage is integrated.
  • the energy storage consists of a latch lever, a release lever and a tension spring.
  • thermal release for power switching devices known.
  • the thermal release contains in the main flow paths bimetallic strip, which bend in overcurrent and act on a trip bridge, adjusting means for setting the trigger conditions and a force storage, which consists of a latch lever and a clamping lever, which can be mutually braced by means of a tension spring.
  • the tripping bridge is displaced and pivots the ratchet lever out of the engagement area with the clamping lever, causing it to move under the influence of the tension spring, which triggers the switchgear of the power switchgear, which results in opening of the main contacts of the power switchgear ,
  • the power switching device When resetting the power switching device from the tripped state acts connected to the switching mechanism clamping element against the force of the tension spring on the clamping lever and transferred the energy storage again in the clamped state.
  • the invention has for its object to reduce the design and manufacturing effort in terms of the use of U / A triggers in a circuit breaker series.
  • the series is at least one size higher nominal current capacity equipped with a force storage consisting of a release lever, a pawl lever and a tensioned tension spring between the two, its release lever to latch with the ratchet lever from the latch when reset from the tripped condition is acted upon against the force of the tension spring, that at least one equipped with energy storage size on the one hand, both the thermal release, the magnetic release and the U / A trigger with the latch lever Relax the energy accumulator in operative connection and on the other hand, the release lever with the switching mechanism triggering operatively connected and that in the at least one equipped with energy storage size instead of the effective in the other sizes first release element egg n associated with the switching lock second release element is provided with the U / A trigger for releasing the same, wherein the effective before closing the main contacts release position of the second release element with respect to the release position of the first release element is leading to a greater extent, all circuit breakers of the series
  • This U / A trip unit is designed so that its tripping energy is sufficient to transfer the non-powered circuit-breaker of the series to the tripped state.
  • the tripping energy of this U / A trigger in conjunction with the energy accumulator is in turn sufficient for triggering this circuit breaker.
  • the inventive series multi-pole circuit breaker is the cost of manufacturing, storage and assembly the parts of the integrated U / A release significantly reduced. The effort for the energy storage is irrelevant, since such is usually provided in the sizes higher rated current capacity for the thermal tripping.
  • Fig. 1 shows a series of three-pole circuit breakers consisting of three sizes 1, 2 and 3 of different nominal current capacity. Of the three sizes 1, 2 and 3, the small size 1 has the lowest nominal current capacity, the medium size 2 the medium and the large size 3 the highest rated current capacity. Each size 1, 2 and 3 is surrounded by a switch housing 4, 5 and 6 of insulating molding material from the frontally a control knob 7, 8 and 9 protrudes, with which the main contacts of the circuit breaker can be closed and opened via a switching mechanism , At the respective switch housing 4, 5 and 6, connections for three main conductors are accessible from above and from below. In contrast to the FIGS. 3 to 8 are the sizes 1, 2 and 3 in Fig. 1 represented in a natural scale ratio.
  • Each of the three sizes 1, 2 and 3 is optionally equipped with a U / A release 10 of the same design, which can be designed as an undervoltage release or as a shunt release.
  • the U / A trigger 10 is inserted into a receiving space 11 accessible from the front side of the switch housing 4, 5 or 6 and connected to control lines 12 routed to the outside.
  • the U / A trigger 10 of the same type is in Fig. 2 shown on an enlarged scale.
  • the U / A trigger 10 is surrounded by a trigger housing 14 made of insulating molding material. From the trigger housing 14 reaches firstly the outer end of a connected to the armature of the U / A trigger 10 release plunger 16 and on the other hand, the actuating surface 19 of a release lever. If, upon the occurrence of a trip condition, the U / A trigger transitions from its idle state to the trip state, the movement of the trigger plunger 16 causes the latch to transition to the tripped state. The main contacts of the circuit breaker are forced open. Before switching the circuit breaker back on, the switch lock must be reset using the control buttons 7, 8 or 9.
  • the release lever holds the Trigger plunger 16 and thus the armature while in the rest position until the circuit breaker releases the armature of the U / A trigger 10 via the release lever in the course of switching on the circuit breaker, so that in the event of a trigger condition (undervoltage or working current), the release plunger 16 can move from the rest position.
  • FIGS. 3 to 5 of the series according to the invention described the size 1 with low Nennstromtriess.
  • the switching mechanism 24 connected via its pivoting lever 22 to the control knob 7 causes the closing and opening of the main contacts, of which in Fig. 3 a fixed contact 26 and a movable contact 28 moving in a contact space 32 equipped with arc-quenching plates 30 can be seen from an outer switching pole.
  • Fig. 4 shows how in the idle state of the U / A trigger 10 of the trigger plunger 16 and the magnet armature 17 connected thereto is held on the release lever 20 in its rest position.
  • the release lever 20 mounted in the trigger housing 14 and designed as a two-sided lever is acted upon by a release tension spring 18 which is fixed on one side in the trigger housing 14 (in the illustration of FIG Fig. 3 clockwise and in the representation of Fig. 4 counterclockwise).
  • a first release member 34 is attached on the pivot lever 22 on the pivot lever 22, a first release member 34 is attached.
  • the pivot lever 22 is supported in the switch lock 24 in a pivot bearing 36 ( Fig. 5 ).
  • a pivot bearing 36 Fig. 5
  • the switch-on movement of the pivot lever 22 reaches a designated by the reference numeral 38 release angle and shortly thereafter its designated by the reference numeral 40 tilt angle at which the switching mechanism 24 can tip over to close the main contacts.
  • the first release element 34 Upon reaching the release angle 38 of the pivoting lever 22, the first release element 34 lays against the actuating surface 19 of the U / A trigger 10 and starts leading the release lever 20 against the spring force of the trigger tension spring 18 from the trigger plunger 16, before closing the main contacts.
  • the release lever 20 according to Fig. 3 counterclockwise and according to Fig. 4 is pivoted clockwise. As a result, the armature 17 is released, so that in the event of a trigger situation leading the closing of the main contacts
  • Magnetic armature 17 and trip rod 16 can move from its rest position (according to Fig. 3 to the right and according to Fig. 4 to the left). In the absence of a trigger situation, however, remain the armature 17 and the trigger plunger 16 in its rest position.
  • the release plunger 16 strikes a lock pawl 42 latchable with the latching mechanism 24. With its rotary movement, the latch pawl 42 releases from the latching mechanism 24, so that it switches over to the tripped state before the main contacts are closed.
  • a thermal release with a bimetallic strip 48 and a magnetic release with a hinged armature 50 are provided, which also act triggering in the event of an overload or a short circuit.
  • the size 2 average rated current capacity also has on the size of 1 described and cooperating functional elements and can be equipped with the U / A trigger 10 of the type described above. Therefore does not need to be discussed in detail on the size 2.
  • the size 3 has the following details: a mounted in the switch housing 6 switching mechanism 25 with a connected to the control knob 9 and mounted in a pivot bearing 37 pivot lever 23; Farther fixed contacts 27, movable contacts 29, arc extinguishing plates 31 in each case a contact space 33; furthermore, a lock pawl 43 latchable with the switch lock 25, and furthermore thermal releases with bimetallic strips 49 and magnetic releases with hinged anchors 51 Fig. 6 and Fig. 7 For reasons of better illustration, not all bimetallic strips 49 and hinged anchors 51 of all three poles can be seen or illustrated.
  • This energy accumulator 52 consists of a switch housing 6 with a latch lever 56 pivotally mounted with its pawl lever axis 54, also in the switch housing 6 with a tripping lever 60 pivotally mounted with its trigger lever axis 58 and a tension spring 62 in the form of a spiral compression spring, under the action of which pawl lever 56 and Release lever 60 are held in mutual tensioned state.
  • the bimetallic strip 49 or the hinged armature 51 act in overload or short circuit on suitably arranged extensions 64 and 65 of the ratchet lever 56.
  • the latch lever 56 in the illustration Fig. 6 clockwise and after Fig. 7 pivoted counterclockwise.
  • the release lever 60 releases from the tension with the pawl lever 56 and is under the action of the relaxing tension spring 62 in the illustration after Fig. 6 clockwise and after Fig. 7 pivoted counterclockwise.
  • the release lever 60 hits due to the relaxing tension spring 62 with sufficient force on the lock pawl 43 of the switching mechanism 25 and brings this to trigger.
  • an intermediate lever 67 is further mounted between the U / A trigger 10 and the latch lever 56.
  • the U / A trigger 10 responds to a trigger situation, its trigger plunger 16 strikes the free end of the intermediate lever 67 and pivots it in accordance with Fig. 7 in a clockwise direction, so that the intermediate lever 67 meets the pawl lever 56.
  • the energy accumulator 52 is relaxed and the switching mechanism 25 is triggered.
  • the switching mechanism 25 size 3 requires higher forces to trigger than the switching mechanism of sizes 1 and 2. These higher forces can be used by the Bimetallic strip 49 and hinged anchors 51 and provided for the entire series U / A trigger 10 are not applied by itself.
  • the interposition of the force accumulator 52 between the described trigger and the pawl 43 allows taking advantage of the stored force of the relaxing tension spring 62, sufficiently high forces to trigger the switching mechanism 25 of the series 3 available. It should be emphasized as a particular advantage that for all series 1, 2 and 3 of the U / A trigger 10 of the same type and size is used.
  • the second release member 35 Upon reaching the release angle 39 of the pivoting lever 23, the second release member 35 lays against the actuating surface 19 of the U / A trigger 10 and starts leading the closing lever 18 against the spring force of the trigger pull spring 18 from the trigger plunger 16, before the main contacts are closed.
  • the release lever 20 according to Fig. 7 is pivoted clockwise.
  • the magnet armature 17 is released, so that in the event of a tripping situation leading before the closing of the main contacts magnet armature 17 and trip rod 16 can move from its rest position (according to Fig. 7 to the left). In the absence of a Tripping situation, however, remain the armature 17 and the trigger plunger 16 in its rest position.
  • the said chain of effects would otherwise lead to a delayed release of the U / A trigger and is characterized by the switching in the direction of the pivot lever 22 and 23 (after FIGS. 5 and 8 Counterclockwise) pre-threaded arrangement of the second release member 35 relative to the first release member 34 compensated in time.
  • the invention described above finds application for the protection of low-voltage switchgear and consumers.
  • the present invention is not limited to the embodiments described above, but also includes all the same in the context of the invention embodiments.
  • the invention can be designed such that the release plunger 16 of the U / A release 10 acts directly on the latch lever 56 of the energy accumulator 52 without the use of an intermediate lever. It is also in accordance with the invention, if instead of an intermediate lever 67, an intermediate slide between
  • Release plunger 16 and latch lever 56 is arranged. Also within the meaning of the invention would be stored in the switch housing 6 and between the release lever 60 of the energy accumulator 52 and the lock pawl 43 mounted intermediate member.

Landscapes

  • Breakers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP11185442.8A 2011-10-17 2011-10-17 Baureihe mehrpoliger Leistungsschalter Withdrawn EP2584582A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11185442.8A EP2584582A1 (de) 2011-10-17 2011-10-17 Baureihe mehrpoliger Leistungsschalter
BR112014009331A BR112014009331A2 (pt) 2011-10-17 2012-10-17 conjunto de conectores de potência multipolares
EP12772793.1A EP2769399B1 (de) 2011-10-17 2012-10-17 Bauareihe mehrpoliger leistungsschalter
PCT/EP2012/070587 WO2013057147A1 (de) 2011-10-17 2012-10-17 Bauareihe mehrpoliger leistungsschalter
CN201280050816.4A CN103875053B (zh) 2011-10-17 2012-10-17 多极断路器的结构套件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11185442.8A EP2584582A1 (de) 2011-10-17 2011-10-17 Baureihe mehrpoliger Leistungsschalter

Publications (1)

Publication Number Publication Date
EP2584582A1 true EP2584582A1 (de) 2013-04-24

Family

ID=47019031

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11185442.8A Withdrawn EP2584582A1 (de) 2011-10-17 2011-10-17 Baureihe mehrpoliger Leistungsschalter
EP12772793.1A Active EP2769399B1 (de) 2011-10-17 2012-10-17 Bauareihe mehrpoliger leistungsschalter

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12772793.1A Active EP2769399B1 (de) 2011-10-17 2012-10-17 Bauareihe mehrpoliger leistungsschalter

Country Status (4)

Country Link
EP (2) EP2584582A1 (zh)
CN (1) CN103875053B (zh)
BR (1) BR112014009331A2 (zh)
WO (1) WO2013057147A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106783439A (zh) * 2017-01-05 2017-05-31 上海磊跃自动化设备有限公司 低压断路器执行机构的复位机构
CN106783432B (zh) * 2017-01-05 2019-02-15 上海磊跃自动化设备有限公司 低压断路器执行机构的快速脱扣装置
CN106783433B (zh) * 2017-01-05 2019-02-15 上海磊跃自动化设备有限公司 低压断路器的执行机构
CN108933050B (zh) * 2017-05-29 2020-06-09 西门子股份公司 电气开关装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4202049C1 (de) 1992-01-27 1993-10-07 Kloeckner Moeller Gmbh Thermischer Auslöser für elektrische Schaltgeräte
US5512720A (en) 1993-04-16 1996-04-30 Merlin Gerin Auxiliary trip device for a circuit breaker
EP0619590B1 (fr) 1993-04-07 1997-05-02 Schneider Electric Sa Disjoncteur multipolaire à assemblage modulaire
US6201460B1 (en) * 2000-02-18 2001-03-13 Siemens Energy & Automation, Inc. Undervoltage release device for a molded case circuit breaker
US6211758B1 (en) * 2000-01-11 2001-04-03 General Electric Company Circuit breaker accessory gap control mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6661329B1 (en) * 2002-06-13 2003-12-09 Eaton Corporation Adjustable thermal trip assembly for a circuit breaker
EP2037475B8 (en) * 2007-09-13 2012-03-14 Eaton Industries (Netherlands) B.V. Operating mechanism with adjustment of contact force

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4202049C1 (de) 1992-01-27 1993-10-07 Kloeckner Moeller Gmbh Thermischer Auslöser für elektrische Schaltgeräte
EP0619590B1 (fr) 1993-04-07 1997-05-02 Schneider Electric Sa Disjoncteur multipolaire à assemblage modulaire
US5512720A (en) 1993-04-16 1996-04-30 Merlin Gerin Auxiliary trip device for a circuit breaker
US6211758B1 (en) * 2000-01-11 2001-04-03 General Electric Company Circuit breaker accessory gap control mechanism
US6201460B1 (en) * 2000-02-18 2001-03-13 Siemens Energy & Automation, Inc. Undervoltage release device for a molded case circuit breaker

Also Published As

Publication number Publication date
CN103875053A (zh) 2014-06-18
EP2769399B1 (de) 2015-08-19
EP2769399A1 (de) 2014-08-27
WO2013057147A1 (de) 2013-04-25
BR112014009331A2 (pt) 2017-04-18
CN103875053B (zh) 2016-08-17

Similar Documents

Publication Publication Date Title
EP2634787B1 (de) Schaltschloss eines Leistungsschalters
EP0012451B1 (de) Selektivschutzeinrichtung
DE19741173A1 (de) Selbstschalter
EP2769399B1 (de) Bauareihe mehrpoliger leistungsschalter
DE102009007475A1 (de) Schaltmechanismus für ein Schaltgerät mit einem bei einem verschweißten Kontaktglied und bei einer Öffnungsbetätigung in einer Zwischenschaltstellung verbleibenden Schalthebel
DE102013017381A1 (de) Installationsschaltgerät mit einem Schaltkontakt
DE2115034A1 (de) Elektrischer Schutzschalter zum Fehlerstrom-, Überstrom- und Kurzschluß-Schutz
EP0091040B1 (de) Überstromschutzschalter
EP3175471B1 (de) Schaltgeraet
DE102010019353B3 (de) Leistungsschalter mit strombegrenzenden Eigenschaften
DE102017131442A1 (de) Ein- oder mehrpoliger Leistungsschalter und modulares System
DE102008016575A1 (de) Voll-Schutzschalter
DE102016203506A1 (de) Auslösevorrichtung und elektromechanisches Schutzschaltgerät
EP2824689B1 (de) Dynamischer Auslöser und elektrisches Installationsschaltgerät mit einem dynamischen Auslöser
DE3023512A1 (de) Elektrisches installationsgeraet, insbesondere selbstschalter
DE102010005345A1 (de) Elektrisches Schaltgerät in modularer Bauweise
DE69833637T2 (de) Selektiver Auslöser für Leistungsschalter
DE102011079593B4 (de) Elektromechanisches Schutzschaltgerät
EP0371419A2 (de) Elektrischer Selbstschalter
EP4528781A1 (de) Koppelelement, rückstelleinrichtung sowie fi/ls kombigerät mit einem koppelelement und einer rückstelleinrichtung
DE102017202790B4 (de) Elektromechanisches Schutzschaltgerät
DE102008049554A1 (de) Elektrischer Schalter
DE102012210745A1 (de) Auslösemechanismus
DE674919C (de) Selbstschalter mit einem beim Abschalten hinter den Hauptkontakten nacheilenden Kontakt
DE2945683A1 (de) Leitungsschalter

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20131025