EP0952600B1 - Two electrically interconnected juxtaposed electrical devices mounted in an electrical switchboard - Google Patents

Two electrically interconnected juxtaposed electrical devices mounted in an electrical switchboard Download PDF

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Publication number
EP0952600B1
EP0952600B1 EP99107257A EP99107257A EP0952600B1 EP 0952600 B1 EP0952600 B1 EP 0952600B1 EP 99107257 A EP99107257 A EP 99107257A EP 99107257 A EP99107257 A EP 99107257A EP 0952600 B1 EP0952600 B1 EP 0952600B1
Authority
EP
European Patent Office
Prior art keywords
electrical
switch
devices
connections
differential device
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
EP99107257A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0952600A3 (en
EP0952600A2 (en
Inventor
Fabrizio Fabrizi
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.)
BTicino SpA
Original Assignee
BTicino SpA
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 BTicino SpA filed Critical BTicino SpA
Publication of EP0952600A2 publication Critical patent/EP0952600A2/en
Publication of EP0952600A3 publication Critical patent/EP0952600A3/en
Application granted granted Critical
Publication of EP0952600B1 publication Critical patent/EP0952600B1/en
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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H01H71/082—Connections between juxtaposed circuit breakers
    • 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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/462—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts housed in a separate casing, juxtaposed to and having the same general contour as the main casing
    • 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 unbalance 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 unbalance of two or more currents or voltages with differential transformer

Definitions

  • the present invention relates to electrical switchboards and, more particularly, to a combination of two electrical devices and of means for electrical connection between them.
  • the switch used also comprises devices for protection against any over-currents or over-voltages, these devices being disposed in the same box-shaped body of rigid plastics material which contains the switch and which performs the dual function of a mechanical support for its fixed and movable portions and of an insulator between the live metal parts.
  • a differential device is connected in series between the switch and the electrical system. This device can detect even very low leakage currents and can supply a corresponding signal to the associated switch to open its contacts by means of a suitable tripping device.
  • Switches and differential devices are formed in a manner such that their input connections, that is, those which are to be connected to the electrical supply mains, are accessible from one side of the respective box-shaped body, and their output connections, that is, those for connection to the electrical system to be supplied, are accessible from the opposite side.
  • connection between the two devices is very simple and requires only short connectors for connecting the output connections of the switch to the input connections of the differential device. If, however, the differential device has to be mounted beside the switch, the connection requires longer and more bulky connectors.
  • flexible insulated conductors each of which has one end fixed to one of the input connections of the differential device and which extend through a space in the bottom of the box-shaped body of the differential device emerging from the same side as the output connections of the differential device, the opposite end of each conductor being fixed to one of the output connections of the switch, as shown in Figure 1.
  • the electrical connection means comprise a plurality of substantially rigid metal strips electrically insulated from one another and being covered by a sheath of epoxy resin.
  • EP - 0 779 641 discloses a combination of two electrical devices in which an electrical cable extends trough a passageway defined between the two electrical devices.
  • the electrical cable is hosted in a module interposed between the electrical devices.
  • DE 38 13 099 discloses a switchboard comprising rows of electrical devices and connection means in the form of rigid metal strips for connecting in parallel the input sides of electrical devices placed on adjacent rows.
  • a four-pole electrical power switch and a differential device are indicated 10 and 11, respectively, and are mounted side by side on a common support panel 12 of an electrical switchboard by suitable fixing means, not shown.
  • the switch 10 is mounted on a spacer base 8 of a thickness such that the front of the switch is aligned with the front of the differential device 11.
  • the mechanical connection between the two devices is strengthened by U-shaped clips, indicated 9, which can be snap-engaged in suitable seats provided in their box-shaped bodies.
  • the switch 10 has four input connections accessible through corresponding holes 13 in the top of its box-shaped body.
  • the connections are constituted, for example, by plates with threaded holes and respective fixing screws, not shown, which can be operated through corresponding holes 14 provided in the front of the switch body.
  • Four output connections, just the same as the input connections, are accessible through corresponding holes provided in the bottom of the switch body.
  • Similar output connections are provided on the bottom of the differential device 11.
  • the latter also has four input connections but these are not accessible from outside the device. However, one of them, indicated 15, is made visible in the drawing by the removal of a portion of the top of the differential body.
  • the ends of four flexible electrical wires 16 with insulating sheaths are fixed to these four input connections during the assembly of the device, the wires extending through a space 17 along the rear of the differential body 11 and emerging from the bottom of the device through suitable holes in the bottom of the body.
  • the opposite ends of the wires 16 can be inserted and clamped in the output connections of the switch 10. In the drawing, only two wires are shown connected.
  • each strip 21 is formed by an intermediate portion which extends through the passageway 20 and is bent at 90° at two points, and by two small plates with holes welded to the two ends of the intermediate portion.
  • An insulating sheath preferably formed by immersion in a thermosetting epoxy resin and subsequent drying, covers the strips, insulating them from one another electrically, naturally except for the ends with the holes.
  • the passageway 20 houses, above the strips 21, a known device 24, associated with the switch 10, for detecting and indicating the state of the switch.
  • the device 24 comprises an arm 24a which interferes with a linkage of the switch through a suitable side opening in the switch body, and a microswitch 24b operated by the arm 24a.
  • the passageway 20 is closed by a covering panel which is connected to the fronts of the two devices disposed side by side.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Patch Boards (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Distribution Board (AREA)
  • Burglar Alarm Systems (AREA)
EP99107257A 1998-04-22 1999-04-14 Two electrically interconnected juxtaposed electrical devices mounted in an electrical switchboard Expired - Lifetime EP0952600B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1998MI000860A IT1306245B1 (it) 1998-04-22 1998-04-22 Combinazione di due apparecchi elettrici e di mezzi diinterconnessione elettrica in un quadro di distribuzione di energia
ITMI980860 1998-04-22

Publications (3)

Publication Number Publication Date
EP0952600A2 EP0952600A2 (en) 1999-10-27
EP0952600A3 EP0952600A3 (en) 2000-10-11
EP0952600B1 true EP0952600B1 (en) 2006-12-27

Family

ID=11379870

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99107257A Expired - Lifetime EP0952600B1 (en) 1998-04-22 1999-04-14 Two electrically interconnected juxtaposed electrical devices mounted in an electrical switchboard

Country Status (5)

Country Link
EP (1) EP0952600B1 (it)
AT (1) ATE349767T1 (it)
DE (1) DE69934538T2 (it)
ES (1) ES2275322T3 (it)
IT (1) IT1306245B1 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2199030B1 (es) * 2001-09-07 2005-05-01 Ge Power Controls Iberica, S.L. Sistema de conexion electrica entre modulos para la proteccion de circuitos de distribucion electrica.
JP4600303B2 (ja) * 2006-01-25 2010-12-15 三菱電機株式会社 回路遮断装置
DE202007011974U1 (de) * 2007-08-27 2007-11-29 Phoenix Contact Gmbh & Co. Kg Baueinheit bestehend aus einem Fehlerstromschutzschalter und einem Überspannungsschutzgerät
EP2444989A1 (en) * 2010-10-20 2012-04-25 Ghisalba S.P.A. Electro-mechanical switching component with electro-magnetic control for electricity-generating units or emergency generators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813099C2 (de) * 1988-04-19 1994-08-25 Asea Brown Boveri Niederspannungsverteiler
DE4013223C2 (de) * 1990-04-26 1999-02-11 Abb Patent Gmbh Netzeinspeiseklemme
SE9303561L (sv) * 1993-10-29 1995-04-30 Gaaroe Elektriska Ab Överkopplingsbygel samt sätt att tillverka en sådan
GB2300528B (en) * 1995-03-31 1999-07-21 Square D Co Improvements in and relating to electrical distribution
FR2742593B1 (fr) * 1995-12-14 1998-02-20 Legrand Sa Module d'espacement, notamment pour appareil electrique modulaire

Also Published As

Publication number Publication date
ES2275322T3 (es) 2007-06-01
ATE349767T1 (de) 2007-01-15
IT1306245B1 (it) 2001-06-04
DE69934538D1 (de) 2007-02-08
EP0952600A3 (en) 2000-10-11
EP0952600A2 (en) 1999-10-27
DE69934538T2 (de) 2007-10-04
ITMI980860A1 (it) 1999-10-22

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