EP1710824A1 - Disjoncteur-protecteur - Google Patents

Disjoncteur-protecteur Download PDF

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Publication number
EP1710824A1
EP1710824A1 EP06110853A EP06110853A EP1710824A1 EP 1710824 A1 EP1710824 A1 EP 1710824A1 EP 06110853 A EP06110853 A EP 06110853A EP 06110853 A EP06110853 A EP 06110853A EP 1710824 A1 EP1710824 A1 EP 1710824A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
residual
primary conductors
current transformer
breaker according
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Withdrawn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
EP06110853A
Other languages
German (de)
English (en)
Inventor
Bruno Siemens
Rudolf Laukötter
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.)
Condor Werk Gebr Frede GmbH and Co KG
Original Assignee
Condor Werk Gebr Frede GmbH and Co KG
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 Condor Werk Gebr Frede GmbH and Co KG filed Critical Condor Werk Gebr Frede GmbH and Co KG
Publication of EP1710824A1 publication Critical patent/EP1710824A1/fr
Withdrawn legal-status Critical Current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
    • 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 circuit breaker with a housing in which the electrical part of a test device, a switching arrangement with a trigger assembly and contact sets are arranged, and in which a summation current transformer is mounted on a support part, which are assigned to a plurality of primary conductors.
  • a fault current circuit breaker in question is necessary, for example, in a house distribution arrangement or in the industrial sector in control cabinets to make the downstream circuits de-energized when a fault current occurs. Such fault currents can arise, for example, due to an insulation fault.
  • the residual current circuit breaker could also be referred to as a safety switch.
  • the invention has for its object to design a fault current circuit breaker of the type described in more detail so that the space can be reduced so that it is compliant with the mounting dimensions of a power distributor.
  • the stated object is achieved in that the primary conductors from the current input side to the current output side have constant or approximately constant cross-sectional sizes such that the cross-sectional shapes in the region of the summation current transformer deviate from the cross-sectional shapes outside the summation current transformer so that the outer contour formed by the outer surfaces of all the primary conductors can be geometrically defined ,
  • the primary conductors are the conductors that are assigned to the connection side of the residual current circuit breaker. Since they are now formed in the area of the summation current transformer so that a geometrically definable outer contour is formed by the outer surfaces of the primary conductor, the required space is minimized, so that analogously a compact design is given.
  • the transformation of the areas of the primary conductors into the corresponding cross-sectional shape takes place without cutting, whereby it should be ensured that the cross-sectional sizes are not significantly changed. This ensures that the electrical values do not change and that no heat accumulation occurs in the operating state.
  • a known, to be carried out with appropriate tools forming process is selected for the chipless deformation of the primary conductor in the area of the summation current transformer.
  • the outer contour formed from the outer surfaces of the primary conductor runs in a circle or that a circle is formed.
  • a circle is divided into segments corresponding to the number of primary conductors.
  • the fault current circuit breaker in question is equipped with four primary conductors. It follows then that the cross sections of the primary conductors are formed as a quarter circle or administratilnikförmig.
  • the outer surfaces of the primary conductors are uninsulated and that their mutually facing surfaces are insulated from each other by an insulating body.
  • the width of the insulating gaps must be designed so that no voltage flashovers can occur.
  • the free ends of the primary conductors protrude in the region of the summation current transformer with respect to the associated end face of the summation current transformer and are designed as pins, preferably as cylindrical pins. These pins of the primary conductors engage in openings or holes of plate-shaped bridges and are permanently connected by pressing, soldering or the like. By such a type of connection, this is inexpensive, electrically safe and space-saving. Furthermore, it is still provided for space-saving arrangement that the summation current transformer has an outer, tubular shaped insulating jacket and an inner insulating body. This also achieves a compact design in conjunction with the primary conductors.
  • the installation space for the current-carrying primary conductor outside the range of the summation current transformer remains as small as possible, it is provided that they are angled several times outside of the summation current transformer. As a result, these areas can be nested in the same way.
  • the external connections can be optimally attached, it is provided that the free, the summation current transformer remote end portions of the primary conductors are arranged in a row and in alignment with each other.
  • the free end regions of the primary conductors for connection to the external connection are permanently connected to connecting angles.
  • a plate-shaped holder for the trigger assembly is mounted in the housing.
  • the primary conductors in a preferred embodiment have outside of the summation current transformer square or round cross-sectional shapes.
  • the housing of the residual current circuit breaker is not shown in Figures 1 to 6, but in particular the summation current transformer 10 and the four primary conductors 11, 12, 13, 14.
  • the primary conductors 11 - 14 in the area forming the summation current transformer 10 is formed as a quarter circle in cross section, so that the outer surfaces describe a circle in cross section.
  • the facing surfaces of the primary conductor 11 - 14 are at a distance from each other, which is chosen so that the primary conductors 11 - 14 are insulated by an insulating body 20 against each other.
  • the insulating body 20 may be part of the summation current transformer 10.
  • the primary conductors 11-14 do not have an outer coating of an electrically insulating material.
  • the primary conductors 11-14 are angled away from the summation current transformer 10 several times, so that mutatis mutandis, these areas are interleaved, so that the most compact unit possible.
  • the free, the summation current transformer 10 remote from the ends of the primary conductors 11 - 14 are aligned in a row to each other, these end portions parallel and at a distance from the central longitudinal axis of the summation current transformer 10.
  • the two End portions of the primary conductors 11, 12 and the end portions of the primary conductors 13, 14 are angled in opposite directions, that is, they point outward.
  • the free end regions of the primary conductors 11-14 which are not shown in the summation current transformer 10, are designed as cylindrical pins 15, 16, 17, 18. In contrast to the illustrated embodiment, they could also be square or rectangular. As shown in particular in FIGS. 3 and 6, these pins 15-18 engage in the plate-shaped part of bridges 19.1, 19.2, 19.3, 19.4, which are provided with openings adapted to the pins 15-18.
  • the connections between the pins 15 - 18 and the bridges 19.1 - 19.4 are fixed or insoluble. This can be done for example by pressing, Vertaumeln or by a solder joint.
  • the summation current transformer 10 forming portions of the primary conductors 11-14 are arranged in an insulating body 20 which consists of an electrically non-conductive material. Such a material would be a suitable plastic, for example.
  • the bridges 19.1-19.4 also extend over the area of the summation current transformer 10.
  • the bridges 19.1-19.4 are designed as brackets which can be regarded as U-shaped, the area receiving the pins 15-18 being designed as a plate.
  • FIG. 5 shows that the trigger assembly 22, which is not explained in more detail, is arranged on a plate 21.
  • the plate 21 is used for insulation and also as an assembly aid.
  • the arrangement is provided with four connection angles 23, 24, 25, 26 fixedly connected to the primary conductors 11-14.
  • FIG. 6 shows the arrangement mounted in the housing with a view of the bridges 19.1-19.4. In addition, it is apparent that the connection angles 23-26 are fixedly connected to the primary conductors 11-14.
  • the invention is not limited to the illustrated embodiment. It is essential that the primary conductors 11-14 in the area of the summation current transformer 10 are indeed transferred across the same area, however, by cold deformation into a different cross-sectional shape, so that the outer surfaces geometrically definable.
  • the cross sections of the primary conductors 11 - 14 are formed in the region of the summation current transformer 10 as a quadrant, so that the outer surfaces describe a circle.
  • the test device, the switching arrangement and the trigger assembly with the contact sets are not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
EP06110853A 2005-04-07 2006-03-08 Disjoncteur-protecteur Withdrawn EP1710824A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510016155 DE102005016155A1 (de) 2005-04-07 2005-04-07 Fehlerstrom-Schutzschalter

Publications (1)

Publication Number Publication Date
EP1710824A1 true EP1710824A1 (fr) 2006-10-11

Family

ID=36616750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06110853A Withdrawn EP1710824A1 (fr) 2005-04-07 2006-03-08 Disjoncteur-protecteur

Country Status (2)

Country Link
EP (1) EP1710824A1 (fr)
DE (1) DE102005016155A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2918210A1 (fr) * 2007-06-27 2009-01-02 Fuji Elec Fa Components & Sys Disjoncteur de circuit de fuite a la terre.
CN108574160A (zh) * 2018-06-01 2018-09-25 浙江中凯科技股份有限公司 一种控制与保护开关电器的导电装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9320797U1 (de) * 1992-05-16 1995-02-16 Abb Patent Gmbh, 68309 Mannheim Aufnahmebehälter für einen Wandler für einen Fehlerstromschutzschalter und Wandler
EP0685867A1 (fr) * 1994-05-31 1995-12-06 Legrand Dispositif de déclenchement différentiel
EP0926695A1 (fr) * 1997-12-18 1999-06-30 Schneider Electric Sa Dispositif de raccordement électrique d'un bloc différentiel sur un disjoncteur ou analogue et bloc différentiel équipé d'un tel dispositif
FR2779269A1 (fr) * 1998-05-29 1999-12-03 Hager Electro Dispositif de couplage de deux elements electriques modulaires accoles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9320797U1 (de) * 1992-05-16 1995-02-16 Abb Patent Gmbh, 68309 Mannheim Aufnahmebehälter für einen Wandler für einen Fehlerstromschutzschalter und Wandler
EP0685867A1 (fr) * 1994-05-31 1995-12-06 Legrand Dispositif de déclenchement différentiel
EP0926695A1 (fr) * 1997-12-18 1999-06-30 Schneider Electric Sa Dispositif de raccordement électrique d'un bloc différentiel sur un disjoncteur ou analogue et bloc différentiel équipé d'un tel dispositif
FR2779269A1 (fr) * 1998-05-29 1999-12-03 Hager Electro Dispositif de couplage de deux elements electriques modulaires accoles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2918210A1 (fr) * 2007-06-27 2009-01-02 Fuji Elec Fa Components & Sys Disjoncteur de circuit de fuite a la terre.
CN108574160A (zh) * 2018-06-01 2018-09-25 浙江中凯科技股份有限公司 一种控制与保护开关电器的导电装置

Also Published As

Publication number Publication date
DE102005016155A1 (de) 2006-10-12

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