EP0231732B1 - Fehlerstrom- und Leitungsschutzschalter - Google Patents

Fehlerstrom- und Leitungsschutzschalter Download PDF

Info

Publication number
EP0231732B1
EP0231732B1 EP86890307A EP86890307A EP0231732B1 EP 0231732 B1 EP0231732 B1 EP 0231732B1 EP 86890307 A EP86890307 A EP 86890307A EP 86890307 A EP86890307 A EP 86890307A EP 0231732 B1 EP0231732 B1 EP 0231732B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
pin
slide
test
spring
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.)
Expired - Lifetime
Application number
EP86890307A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0231732A2 (de
EP0231732A3 (en
Inventor
Alfred Nyzner
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.)
Felten & Guilleaume Fabrik Elektrischer Apparate AG
Original Assignee
Felten & Guilleaume Fabrik Elektrischer Apparate 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 Felten & Guilleaume Fabrik Elektrischer Apparate AG filed Critical Felten & Guilleaume Fabrik Elektrischer Apparate AG
Publication of EP0231732A2 publication Critical patent/EP0231732A2/de
Publication of EP0231732A3 publication Critical patent/EP0231732A3/de
Application granted granted Critical
Publication of EP0231732B1 publication Critical patent/EP0231732B1/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
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • 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
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • H01H2083/045—Auxiliary switch opening testing circuit in synchronism with the main circuit
    • 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
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
    • 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
    • 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
    • H01H83/226—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 with differential transformer

Definitions

  • the invention relates to a residual current and line circuit breaker with a switch for a center conductor, in which the movable switching bridge of the line circuit breaker arranged in a housing part is coupled and goes with the movable contact arm of the switch for the center conductor accommodated in a further housing part via a slide guided on an intermediate wall of the housing from EP-A 0 149 441.
  • a circuit breaker with all-pole disconnection is known from DE-B 15 63 919.
  • a transmission element designed as a slide is provided, which is guided in grooves in the side walls of adjacent shell halves.
  • a disadvantage of this known circuit breaker is that the actuating parts (knee joint parts) of the circuit breaker must be designed with extensions that operate the slide.
  • a circuit breaker in which the coupling of the contactor of the circuit breaker with that of the switch for the center conductor is possible without changing the structure of the circuit breaker is known from AT-A 378 283.
  • the movable switching bridge of the circuit breaker is coupled to the movable contact of the switch for the center conductor via a slide guided on the side wall of the housing of the circuit breaker.
  • the slide has at least one projection which engages the movable contact of the switch for the center conductor and a projection which is designed as a pin and which is at the same time the bearing pin for the joint between the switching bridge and its actuating member.
  • the invention is based on the object, in a circuit breaker of the type mentioned, to use the coupling designed as a slide between the bimetallic magnetic release and arc extinguishing device equipped protected switching path and the simple unprotected switching path (switch for the center conductor) for further functions of the residual current protection.
  • the permanent magnet trigger of the residual current protection is assigned a lever which is pivotably mounted in the housing, the trigger pin of the permanent magnet trigger being present at one end of the lever and the other end of the lever in the "on" position of the switch with a spring-loaded Actuator, which has a peg assigned to the pawl support of the circuit breaker, is locked and that a peg is provided on the slide, which the actuator against the force of the associated spring when pivoting the contact arm of the switch for the center conductor in its closed position in the for a latching correct position pivoted with the lever associated with the permanent magnet release.
  • the trigger pin of the permanent magnet release is assigned a pivotably mounted reset device, which is designed as a two-armed lever, the arm of the reset device, which is assigned to the permanent magnet release, being under the action of a preferably hairpin-shaped spring, which the resettler is loaded on the trigger pin of the permanent magnet trigger and that the other arm of the resetter is lifted from the trigger pin of the permanent magnet trigger in the "on" position by a pin provided on the slide.
  • a further function of the slide is achieved, since the reset is raised by the slide when the circuit breaker is switched on in such a way that the release pin of the permanent magnet release can actuate the pawl rest. After triggering and return of the slide to the "off" position, the trigger pin of the permanent magnet release is depressed by the reset mechanism driven by the return spring.
  • one and the same pin on the slide for pivoting the actuation member is provided on the one hand and the reset on the other and the pin is arranged between an extension of the actuator and an arm of the reset.
  • the actuator in the "off" position rests against a stop fixed to the housing under the action of the spring assigned to it. This relieves the axis of the actuator and limits the pivoting range, so that moving the actuator back into the position locked with the lever is easier.
  • a residual current and line circuit breaker with a switch for a center conductor can be coupled, in which the movable switching bridge of the line circuit breaker arranged in one housing part is coupled to the movable contact arm of the switch for the center conductor accommodated in a further housing part via a slide guided on an intermediate wall of the housing.
  • a further development of the invention is based on the object, in a circuit breaker of the type mentioned, to use the coupling, designed as a slide, between the protected switching path equipped with a bimetallic magnetic release and arc extinguishing device and the simple unprotected switching path (switch for the center conductor) for further functions of the residual current protection.
  • test circuit known per se is provided with a test button, two test contacts and a test contact spring, part of the test contact spring being able to be applied to the test contact assigned to it by pressing the test button and another part of the test contact spring on one second test contact is present and is lifted from the contact by the slide when the contacts are open.
  • This function of the slide closes the test circuit known per se by means of a test contact spring which actuates two test contacts. At the same time it is ensured that a contact is only closed when the test button is pressed if the circuit breaker and thus the slide is in the position corresponding to the setting. This prevents damage to the switch, even if the test button is pressed for a long time.
  • a further embodiment of the invention is based on the object in the case of a residual current and line circuit breaker with a switch for a center conductor, in which the movable switching bridge of the line circuit breaker arranged in a housing part with the movable contact arm of the switch for the center conductor accommodated in a further housing part slider coupled to a partition wall, the slider coupling between the protected switching path equipped with bimetallic magnetic release and arc quenching device and the simple unprotected switching path (switch for the center conductor) for further functions.
  • a contact position indicator known per se is accommodated in the housing part receiving the residual current protection, which is pivotally mounted in the housing and of which one end is arranged at a window in the housing and the other end for actuating the contact position indicator with the slide is coupled.
  • the contact position indicator for example two-colored, which can be seen from the outside of the window, is actuated directly by the slide and indicates, for example by means of red and green color, the "on" or "off” position of the contact apparatus.
  • the line protection part accommodated in the housing part can have, for example, the configuration shown and described in AT-A 378 283 and EP-A1-0 149 441. It is preferred that the slide shown in the housing part shown in the drawings is coupled to the circuit breaker as described in AT-A 378 283 or EP-A1-0 149 441.
  • the permanent magnet release used in the residual current protection visible in the drawings can be, for example, the hermetically sealed holding magnet release known from EP-A2-0 154 619.
  • the coupling of the slide with the line protection part is preferred in the manner described in AT-PS 378 283, the invention is not limited to this embodiment, but any other possibility of coupling the slide with the release mechanism or the switching bridge of the line protection switch, whether this is done directly or indirectly can be used within the scope of the invention.
  • the exemplary embodiment of the circuit breaker according to the invention described below is a two-module-wide RCD which is independent of the mains voltage and can be operated with a single switch.
  • the switch has a bimetal magnet (not shown) Tripping and arc extinguishing device equipped protected switching path (miniature circuit breaker) and a simple unprotected switching path (switch for the center conductor), the movable switching bridges of both switching paths are coupled to each other by a coupling.
  • the residual current protection includes a permanent magnet release which receives the energy required for tripping in the event of a residual current through the differential transformer (total current transformer) through which both switching paths flow.
  • a permanent magnet release 2 is arranged in a housing 1 and, in the event of a fault current, receives the energy required for triggering through the differential converter 5 through which both switching paths 3 and 4 flow.
  • the switching path 3 arranged in the visible housing part is formed by the center conductor (N conductor) and contains a contact apparatus with a movable switching bridge 6.
  • the movable switching bridge 6 is coupled directly or indirectly via a coupling designed as a slide 7 to the non-visible, movable switching bridge of the circuit breaker, so that the movable switching bridge 6 follows the movements of the switching bridge of the circuit breaker.
  • a lever 8 is arranged pivotably about a bearing pin 36, one end 11 of which is assigned to the release pin 9 of the permanent magnet release 2.
  • the other end 12 of the lever has a nose-like projection 13, in which, in the "on" position (cf. FIG. 2), an extension 15 of an actuating element 14, which is pivotably mounted in the switch about an axis 16, comes into contact .
  • the latching of the nose-like projection 13 with the extension 15 prevents the actuating member 14 from pivoting under the action of the trigger spring 17 assigned to it.
  • the actuating member 14 has a pin 18 which penetrates the intermediate wall between the two housing parts and which, in the event of tripping, acts on the latch support (not visible) of the circuit breaker, so that its tripping mechanism is actuated.
  • the actuator 14 by a provided on the slide 7 pin 19 which engages an extension 20 of the actuator 14 in the "off” position against the action of the release spring 17 in the for locking with the Lever 8 swiveled in the correct position.
  • the pin 19 on the slide 7 is further assigned an end of a pivotable about a bearing pin 10 reset 21 for the permanent magnet release 2.
  • This reset means 21 is under the action of a return spring 22 which presses the end 23 of the reset means 21 assigned to the release pin 9 of the permanent magnet release 2 against the release pin 9 when the switch is in the “off” position.
  • the reset 21 is pivoted by the pin 19 on the slide 7 against the action of the return spring 22 such that the end 23 of the reset 21 does not abut the release pin 9 of the permanent magnet release 2.
  • the lever 8 is held in contact with the release pin 9 of the permanent magnet release 2 by the support spring 24 shown in FIG. 3.
  • a contact position indicator 26 which can be pivoted about a bearing journal 25 can also be provided.
  • This contact position indicator 26 can be seen from the outside through a window 27, with a field colored green in the "off” position shown in FIG. 1 and a red field in the "on” position shown in FIG. 2 from the outside through the window 27 colored field of the contact position indicator 26 can be seen.
  • the contact position indicator 26 is actuated by the slide 7 by means of an actuating pin 28 which engages in a slot 28 'of the contact position indicator 26 which is open on one side in the manner of a "pin-slot” coupling. It can be seen that due to this arrangement, when the slide 7 is moved back and forth, the contact position indicator 26 pivots back and forth.
  • a test circuit can also be provided in the housing part of the RCD / MCB according to the invention that receives the residual current protection and is visible in the drawings.
  • This test circuit has two test contacts 29 and 39 and an essentially U-shaped bent test contact spring 30 held in the housing.
  • One leg 31 of the test contact spring 30 can be brought into contact with the test contact 29 using a test button 32.
  • the other leg 33 of the test contact spring 30 is in the "on" position (Fig. 2), i.e. when the movable switching bridges of both switching sections are closed, at test contact 39.
  • the leg 33 of the test contact spring 30 is received between two actuating pins 34 and 35 of the slide 7.
  • the leg 33 is lifted by the actuating pin 35 from the test contact 39 when the switch is in the "off" position (FIG. 1).
  • the movement of the slide 7 is also used to interrupt the test circuit as soon as it is triggered - for whatever reason, e.g. by pressing the test button 32 -. This prevents the switch from being damaged if the test circuit is closed too long.
  • the reset 21 is first released and can reset the permanent magnet release 2 by depressing the release pin 9 under the action of the return spring 22.
  • the pin 19 on the slide 7 comes into contact with the extension 20 of the actuator 14 during its upward movement, so that it compresses the trigger spring 17 into a new latching with the lever 8, which is now under the action of the support spring 24 again has pivoted back, swiveled prepared position.
  • leg 33 of the test contact spring 30 was lifted by the actuating pin 35 of the slide 7 from the test contact 39 assigned to it, so that the test circuit cannot be closed despite actuation of the test button 32 and contact of the leg 31 of the test contact spring 30 with the test contact 29.
  • the contact position indicator 26 has been pivoted under the action of the actuating pin 28, so that its green field is now visible through the window 27.
  • the switch By actuating the ON button 38, the switch can be moved back to the "ON" position shown in FIG. 2.
  • a "free trip” is also possible with the FIILS switch. This is shown in Figure 4.
  • the switch button 38 is not yet fully in its “on” position, but the movable switching bridge 6 is already closed. This position also occurs, for example, with welded contacts.
  • the slide 7 is not yet completely in its position corresponding to the "on” position, the extension 15 of the actuating member 14 is able to unlatch the outer conductor switching path.
  • the reset device 21 has already been raised so far by the pin 19 that the release pin 9 of the permanent magnet release 2 can pivot the lever 8 in order to lock it between the lever 8 and the actuating member 14, i.e. to release the latching between the nose-shaped projection 13 and the shoulder 15.
  • the red field of the contact position indicator 26 is visible from the outside through the window 27 (for the sake of clarity, the contact position indicator 26 is not shown in FIGS. 3 and 4).

Landscapes

  • Breakers (AREA)
  • Burglar Alarm Systems (AREA)
  • Interface Circuits In Exchanges (AREA)
EP86890307A 1985-12-02 1986-11-10 Fehlerstrom- und Leitungsschutzschalter Expired - Lifetime EP0231732B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0350485A AT384120B (de) 1985-12-02 1985-12-02 Fehlerstrom- und leitungsschutzschalter
AT3504/85 1985-12-02

Publications (3)

Publication Number Publication Date
EP0231732A2 EP0231732A2 (de) 1987-08-12
EP0231732A3 EP0231732A3 (en) 1989-08-23
EP0231732B1 true EP0231732B1 (de) 1990-07-18

Family

ID=3551429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890307A Expired - Lifetime EP0231732B1 (de) 1985-12-02 1986-11-10 Fehlerstrom- und Leitungsschutzschalter

Country Status (8)

Country Link
EP (1) EP0231732B1 (no)
AT (3) AT384906B (no)
AU (1) AU589715B2 (no)
DE (1) DE3672810D1 (no)
DK (1) DK163616C (no)
ES (1) ES2017472B3 (no)
FI (1) FI84411C (no)
NO (1) NO169513C (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110880441A (zh) * 2018-09-06 2020-03-13 嘉灵科技有限公司 具有滑动测试功能的断路器

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Publication number Priority date Publication date Assignee Title
FR2604294B1 (fr) * 1986-09-23 1994-05-20 Merlin Et Gerin Disjoncteur differentiel multipolaire a assemblage modulaire
FR2660794B1 (fr) * 1990-04-09 1996-07-26 Merlin Gerin Mecanisme de commande d'un disjoncteur electrique.
DE9004196U1 (de) * 1990-04-11 1990-06-13 Felten & Guilleaume Energietechnik AG, 51063 Köln Prüfeinrichtung für Fehlerstromschutzschalter
FR2662019B1 (fr) * 1990-05-10 1992-07-24 Merlin Gerin Circuit test pour un declencheur differentiel.
EP0632477B1 (en) * 1993-06-22 1999-08-11 ABB ELETTROCONDUTTURE S.p.A. Device for automatically or manually testing of a protecting, controlling or signalling apparatus
ZA947575B (en) * 1993-10-27 1995-05-15 Circuit Breaker Ind A circuit breaker
FR2720548B1 (fr) * 1994-05-31 1996-08-30 Legrand Sa Dispositif de déclenchement différentiel.
DE10329115B4 (de) * 2003-06-27 2005-09-29 Siemens Ag Schutzschaltvorrichtung mit Prüftaste
DE102004005983A1 (de) * 2004-02-06 2005-09-08 Siemens Ag Installationsgerät mit optimierten Drehmomenten und entsprechendes Auslöseverfahren bei Vorliegen eines Fehlerstroms
KR101028183B1 (ko) * 2006-08-11 2011-04-11 가와무라 일렉트릭 가부시키가이샤 회로차단기
FR2920911B1 (fr) * 2007-09-11 2010-02-19 Schneider Electric Ind Sas Dispositif electrique a protection differentielle
FR3029350B1 (fr) * 2014-12-01 2016-12-23 Hager-Electro Sas Dispositif de protection differentielle
CN105762043B (zh) * 2016-04-27 2019-01-15 乐清市也为电气有限公司 一种漏电断路器上的试验装置
FR3057389B1 (fr) * 2016-10-11 2020-12-25 Schneider Electric Ind Sas Appareillage de coupure electrique differentiel comportant un dispositif de test de la fonction differentielle
CN112863966B (zh) * 2019-11-26 2024-10-18 浙江正泰电器股份有限公司 断路器
FR3121270B1 (fr) * 2021-03-26 2024-02-02 Schneider Electric Ind Sas Dispositif de protection électrique
CN112951665A (zh) * 2021-03-31 2021-06-11 英特曼电工（常州）有限公司 一种2p2模数电磁式漏电保护断路器
CN214542079U (zh) * 2021-03-31 2021-10-29 英特曼电工（常州）有限公司 一种2p2模数电磁式漏电保护断路器的漏电保护装置
CN117612911A (zh) * 2023-12-29 2024-02-27 石家庄曼通科技有限公司 基于物联网通讯和线路故障分析功能的微型断路器

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DE1950672C3 (de) * 1969-10-08 1975-05-15 Friedrich Merk Telefonbau Gmbh, 8000 Muenchen Schaltungsanordnung zur Rufstromanschaltung und Ausgängeüberwachung in Verbindungssätzen von Fernsprechanlagen
FR2500209A1 (fr) * 1981-02-18 1982-08-20 Merlin Gerin Adaptateur a interrupteur differentiel
DE3107687C2 (de) * 1981-02-28 1985-05-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mechanismus für einen mit einem Leitungsschutzschalter kombinierten Fehlerstromauslöser
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AT378283B (de) * 1983-11-28 1985-07-10 Felten & Guilleaume Ag Oester Leitungsschutzschalter mit schalter fuer einen mittelleiter
AT378862B (de) * 1984-03-05 1985-10-10 Felten & Guilleaume Ag Oester Haltemagnetausloeser
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110880441A (zh) * 2018-09-06 2020-03-13 嘉灵科技有限公司 具有滑动测试功能的断路器

Also Published As

Publication number Publication date
NO169513B (no) 1992-03-23
NO864823D0 (no) 1986-12-01
DK163616B (da) 1992-03-16
ATA255986A (de) 1987-06-15
NO169513C (no) 1992-07-01
DK576686A (da) 1987-06-03
ATA350485A (de) 1987-02-15
AT384906B (de) 1988-01-25
AU589715B2 (en) 1989-10-19
EP0231732A2 (de) 1987-08-12
DK576686D0 (da) 1986-12-01
ATA255886A (de) 1987-06-15
AT384907B (de) 1988-01-25
AU6601986A (en) 1987-06-04
DK163616C (da) 1992-08-17
EP0231732A3 (en) 1989-08-23
ES2017472B3 (es) 1991-02-16
NO864823L (no) 1987-06-03
FI84411B (fi) 1991-08-15
FI864902A0 (fi) 1986-12-01
AT384120B (de) 1987-10-12
FI84411C (fi) 1991-11-25
FI864902A (fi) 1987-06-03
DE3672810D1 (de) 1990-08-23

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