EP1715500A1 - interrupteur auxiliaire distributeur électrique à basse tension - Google Patents

interrupteur auxiliaire distributeur électrique à basse tension Download PDF

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Publication number
EP1715500A1
EP1715500A1 EP05405302A EP05405302A EP1715500A1 EP 1715500 A1 EP1715500 A1 EP 1715500A1 EP 05405302 A EP05405302 A EP 05405302A EP 05405302 A EP05405302 A EP 05405302A EP 1715500 A1 EP1715500 A1 EP 1715500A1
Authority
EP
European Patent Office
Prior art keywords
contact
housing
auxiliary switch
auxiliary
switch 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.)
Granted
Application number
EP05405302A
Other languages
German (de)
English (en)
Other versions
EP1715500B1 (fr
Inventor
Markus Herzog
Adelbert Schalk
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.)
ABB Schweiz AG
Original Assignee
ABB Schweiz 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 ABB Schweiz AG filed Critical ABB Schweiz AG
Priority to ES05405302T priority Critical patent/ES2323077T3/es
Priority to AT05405302T priority patent/ATE426243T1/de
Priority to EP05405302A priority patent/EP1715500B1/fr
Priority to DE502005006874T priority patent/DE502005006874D1/de
Publication of EP1715500A1 publication Critical patent/EP1715500A1/fr
Application granted granted Critical
Publication of EP1715500B1 publication Critical patent/EP1715500B1/fr
Active 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
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • 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
    • 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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H01H2071/086—Low power connections for auxiliary switches, e.g. shunt trip

Definitions

  • the present invention relates to an auxiliary switch according to the preamble of claim 1.
  • Such an auxiliary switch is to a circuit breaker, in particular a line or a residual current circuit breaker, grown.
  • triggers of the auxiliary switch are mechanically coupled to the circuit breaker.
  • the coupling can be done in two ways. If the auxiliary switch is to be used as an auxiliary contact, then it is coupled to the circuit breaker in such a way that it operates analogously to the switching point of the circuit breaker. If, on the other hand, it is intended to act as a signal contact, it is coupled in such a way that it operates only when it is triggered electrically, for example due to a short circuit, overcurrent or residual current.
  • the protective and auxiliary switch comprehensive assembly is plugged into a low-voltage distributor, are held in the main and auxiliary busbars of the system on a socket.
  • the auxiliary switch contacts at least one of the auxiliary busbars by means of a contact device guided through its housing.
  • auxiliary switch of the type mentioned in the introduction is described in the technical catalog smiss-line S "Innovation with system - Protection devices with plug-in technology" from ABB Sau AG, Normelec / CMC Components PO Box CH-8048 Zurich / Switzerland.
  • This auxiliary switch is intended for mounting on a circuit breaker for a built-up as a socket system low-voltage distribution and contains a box-shaped housing.
  • the housing accommodates two switching points which can be used as auxiliary or signal contacts, of which one as an opener and the other can be designed as a make, as well as acting on the switching points and mechanically coupled to the circuit breaker actuator.
  • At least one of the switching points is part of a signal circuit indicating whether the circuit breaker is open or closed (using the auxiliary switch as an auxiliary contact) or if the circuit breaker has tripped due to electrical conditions (use of the auxiliary contact as a signal contact).
  • the signal circuit is fed by a held in the socket auxiliary busbar, which is contacted after installation of the auxiliary switch with a guided through the wall of the housing plug contact of the auxiliary switch.
  • a current signal formed by the position of the switching point is fed via a current feedthrough designed as a screw connection to an alarm point provided outside the switch housing.
  • the task is based on creating an auxiliary switch of the type mentioned, which can be easily installed in a low-voltage distributor with a socket and, if necessary, again conveniently removed from the distributor.
  • the contact device comprises a parallel to two side surfaces of its housing aligned and biasing force acted upon contact plate, which is slidably mounted in the housing and arranged outside the housing first contact bearing surface for contacting a held on the socket of the low-voltage distributor auxiliary busbar.
  • Such an auxiliary switch can be installed very easily and without much effort in the low-voltage distributor and removed from this very easily again. This is mainly because the contact plate is slidably held over a relatively large distance. In contrast to a contact arrangement with a plug contact so relatively large and uneven acting forces when installing and removing the auxiliary switch from the low-voltage distributor avoided. A sufficient for the function as an auxiliary switch electrical contact is ensured by rest of the contact plate on the auxiliary busbar. Therefore, the auxiliary switch can be installed quickly and reliably in the manifold even by rather inexperienced assembly personnel without any adjustment.
  • the edge of the contact plate is formed by two aligned in the direction of thrust guide edges and two adjacent to each of the two leading edges and held in the direction of thrust spaced apart connecting portions, and is arranged in a first connecting portion, the aforementioned first contact pad and in the second connecting portion of the Housing received second contact bearing surface which is supported on a contact point electrically connected to the switching point contact pad.
  • a spring supported on the contact rocker and fixedly mounted in the housing is advantageously provided.
  • this spring contact force is generated at two contact points, namely between contact plate and auxiliary busbar and between contact plate and contact rocker.
  • an opening for receiving a securing element is formed in the contact plate.
  • a finger grip is formed in a section of the contact plate located outside the housing.
  • the contact device has a second contact plate which can be acted upon by biasing force and which contacts a second auxiliary busbar of the low-voltage distributor which is at a distance from the auxiliary busbar provided and analog is formed and arranged to the first contact plate, but rotated relative to this plate by 180 ° to the thrust direction and is displaced in the housing displaced about an aligned perpendicular to the plate plane insulating distance.
  • This auxiliary switch can be easily contacted with two auxiliary busbars.
  • auxiliary switches which are assigned to a plurality of circuit breaker, are interconnected to form a single signal circuit and in the circuit thus formed, the failure of one of the circuit breakers are detected (collective alarm). Due to the asymmetrical design only a single plate type is required for both contact plates.
  • the contact device has an insulating body held in the housing with a partition wall arranged between the two contact plates.
  • This insulating body can be easily installed in the switch housing and performs holding function.
  • the partition wall isolates the contact plates, which can be guided to different electrical potentials, from one another.
  • the contact device can be very easily fixed in the switch housing when the insulator contains a fixed in the housing border. This border also ensures the isolation distances in the auxiliary switch, holds and secures in particular flexibly formed power connections of the signal circuits and causes the leadership of the two contact plates in the thrust direction.
  • a simple assembly and disassembly of the power connections and the contact plates is made possible in that the border has two passages on both sides of the partition, of which in the first one of the two contact plates and in the second a current connection between this contact plate and the first or second signal circuit associated switching point is performed.
  • a spring which can be elastically deformed perpendicularly to the partition wall is arranged on each of the two sides of the partition wall, then the two contact plates are secured against falling out in a simple manner.
  • a shaping cooperating with an opening of the associated contact plate as a securing element is provided on the spring.
  • the partition, the border and the springs are part of the insulating material.
  • auxiliary switch 10 is shown.
  • the auxiliary switch 10 is installed in a low-voltage distributor and contacts two perpendicular to the drawing plane aligned auxiliary busbars LA and LB.
  • the switch includes a substantially box-shaped housing 20 made of a polymeric insulating material. This housing is formed in two parts and has two housing halves, of which the viewer facing the housing half has been removed. At two aligned parallel to the plane of the drawing, wide side surfaces of the auxiliary switch can by means of connecting means 21, 22 a (below or above the plane of the drawing lying) circuit breaker or another auxiliary switch are attached.
  • the auxiliary switch 10 has a controllable by the circuit breaker actuator 30.
  • the device 30 comprises with the circuit breaker mechanically coupled triggers 31, 32 and one of the triggers entklinkbares and a contact carrier 35 holding latching mechanism 33, a manually operable lever system 34 and optionally a non-designated test button.
  • Two movable contact pieces 41 A and 41 B are fixed to the contact carrier 35, which cooperate with two fixed contact pieces 42A and 43A or 42B and 43B to form a switching point 40A and 40B, respectively.
  • the two switching points 40A and 40B are coupled together via the contact carrier 35 so that either (as shown in Figure 1) the switching point 40A is opened and the switching point 40B is closed or the switching point 40A is closed and the switching point 40B is open.
  • the switching piece 42A and 43A of the switching point 40A is connected via a bracket 51 A with a guided through the housing 20 power connector 50A or via a non-designated power connection with a likewise guided through the housing 20 power connector 52A of the auxiliary switch 10 electrically conductive.
  • the bracket 51 A, a strand 61 A is fixed, which establishes a power connection to a contact rocker 62 A also guided through the housing 20 contact device 60.
  • the contact rocker 62A is on an upward pointing and arranged inside the housing 20 contact surface 71 A of a contact plate 70 A of the contact device 60 is supported.
  • a downwardly facing contact surface 72A of the contact plate 70A located outside the housing 20 is supported on the auxiliary busbar LA.
  • the support force is applied by a spring 63A.
  • the contact plate 70A is aligned parallel to the two wide side surfaces of the housing 20 and slidably mounted in the housing 20 under the action of the spring 63A with biasing force.
  • the contact plate 70A is bounded by two thrust direction defining guide edges 74 and 75.
  • An insulator body 80 inserted into the housing 20 supports the contact plate 70A, the contact rocker 62A, the spring 63A and the strand 61A.
  • the switching piece 42B and 43B of the switching point 40B is electrically conductive via a bracket 51 B with a guided through the housing 20 power connector 50B or via a non-designated power connection with a likewise guided through the housing 20 power connector 52B of the auxiliary switch 10 connected and is fixed to the bracket 51 B, a strand 61 B, which establishes a power connection to a not visible from Figure 1 further contact rocker of the contact device 60.
  • the unobservable contact rocker covered by the insulating body 80 is supported on a contact surface 70B of the contact device 60 facing upwards and arranged inside the housing 20, corresponding to the contact rocker 62A.
  • a downwardly facing contact surface 72B of the contact plate 70B located outside the housing 20 is supported on the auxiliary busbar LB.
  • the contact plate 70B is analogous to the first contact plate 70A formed and arranged, but rotated relative to this plate by 180 ° to the thrust direction and displaced about an aligned perpendicular to the plate plane insulating distance in the housing 20.
  • the contact surface 72A is arranged asymmetrically with respect to the guide edges 74, 75. Therefore, the two contact surfaces 72A and 72B are offset from each other in the horizontal direction. By a suitable choice of the asymmetry, it is easy to achieve a distance between the two contact surfaces which corresponds to the spacing of the two auxiliary busbars LA and LB.
  • the auxiliary busbar LA feeds via the contact plate 70A a signal circuit containing the switching point 40A.
  • the auxiliary busbar LB feeds a signal circuit containing the switching point 40B via the contact plate 70B.
  • the power terminals 50A and 50B are dispensable when the auxiliary switch is installed in a low-voltage distributor in which the auxiliary bus bars LA and LB are held on a socket. When installing the auxiliary switch in a low-voltage distribution with a mounting rail, however, enable the power terminals 50A and 50B and additional connecting means the power supply through the rails LA and LB.
  • the insulating body 80 has a partition 81 arranged between the two contact plates 70A, 70B and a border 82 which fixes the insulating body 80 to holding nips 23 of the housing 20.
  • the border 82 is arranged mirror-symmetrically on both sides of the dividing wall 81 and has two passages on each side of the dividing wall, of which only the passages 83 and 84 arranged above the dividing wall can be seen.
  • the contact plate 70A is guided through the passage 84, however, the the current connection between the contact plate 70A and the switching point 40A producing strand 61A.
  • the contact plate 70 B and the strand 61 B are guided through the unseen passages of the border 82.
  • two arranged above the partition wall 81 and guided to the border 82 lugs 85 are visible, which serve to support and guide the contact force generating spring 63A.
  • Finger parts 73A and 73B are provided on the parts of the contact plates 70A and 70B guided out of the housing 20, respectively.
  • FIGS. 3 and 4 It can be seen from FIGS. 3 and 4 that two webs 86A and 86B aligned in the thrust direction of the contact plates 70A and 70B, respectively, and a spring 87A or 87B located between the two webs are arranged on both sides of the partition wall 81.
  • the springs are elastically deformable perpendicular to the dividing wall 81 and each have a recess 88A or 88B guided into a central opening 76A or 76B of the contact plate 70A or 70B.
  • the contact plate 70 B associated parts namely the spring 63 B and the contact rocker 62 B, to recognize.
  • the insulating body 80 is inserted into the housing 20 such that it is held with the border 82 on the holding nub 23 in the housing 20.
  • the strand 61 B and the associated not apparent contact bar and also not visible spring are here introduced into the insulating body 80.
  • the spring 63A, the strand 61A and the contact rocker 62A are inserted into the insulating body 80 and the housing 20 closed by placing the not visible from Figures 1 and 2 housing half.
  • the contact plates 70A and 70B can now be inserted from below into the housing.
  • the springs 87A and 87B are elastically deformed toward the partition wall 81.
  • the formations 88A and 88B reach the openings 76A and 76B, the springs relax and thus secure the contact plates from falling out.
  • the auxiliary switch Before installation in the low-voltage distributor, the auxiliary switch by means of the fastening elements 21, 22 attached to the circuit breaker.
  • the assembly thus formed is placed on the socket holding the auxiliary busbars LA and LA.
  • the assembly is pivoted about the located in Figure 1 bottom left housing edge of the switch housing.
  • the contact plates 70A and 70B thereby hit the surfaces 72A and 72B at the two Auxiliary busbars LA and LB on.
  • the resting on the webs 86A and 86B contact plates 70A and 70 B are now against the force of the springs 63A and 63B in the insulating body 80 as long moved up until the assembly is mechanically fixed in the base.
  • switch points 40A and 40B are formed, without any wiring work, two signal circuits comprising switch points 40A and 40B, respectively, in which defined current transitions from auxiliary busbars LA and LB to contact plates 70A and 70B and from contact plates to contact paddles 62A and 62B, respectively, through one of the pre-stressed ones Springs 63A and 63B certain contact force is ensured.
  • the contact device 60 is arranged relatively close to the pivot axis. Therefore, a relatively large swivel angle is necessary to ensure a secure contacting of the auxiliary busbars.
  • the large tilt angle can be easily absorbed by the two contact plates 70A and 70B, since the contact plates are slidably held over a relatively large distance (leading edges 74 and 75).
  • a contact arrangement with a plug contact however, occur relatively large and non-uniform forces, which considerably complicate the mating process and may possibly result in improper installation to damage the auxiliary switch.
  • auxiliary busbars LA or LB If only one signal circuit fed by one of the auxiliary busbars LA or LB is required, this can easily be achieved by removing one of the two contact plates.
  • the plate to be removed, for example 70B, is manually fixed after removal of the assembly from the socket on the finger grip 73B and pulled out of the housing 20 against the holding force of the spring 87B.
  • auxiliary busbar for example LA
  • auxiliary busbar LB detects the signal emitted by the switching point 40A and is fed into the auxiliary busbar LB, as is desired in the collective alarm function, the two become otherwise each acting as a signal output current terminals 52A and 52B electrically connected to each other and the switching point 40B bridged.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Keying Circuit Devices (AREA)
EP05405302A 2005-04-20 2005-04-20 interrupteur auxiliaire distributeur électrique à basse tension Active EP1715500B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES05405302T ES2323077T3 (es) 2005-04-20 2005-04-20 Conmutador auxiliar que se puede montar en un distribuidor electrico de baja tension.
AT05405302T ATE426243T1 (de) 2005-04-20 2005-04-20 Hilfsschalter fur einen niederspannungsverteiler
EP05405302A EP1715500B1 (fr) 2005-04-20 2005-04-20 interrupteur auxiliaire distributeur électrique à basse tension
DE502005006874T DE502005006874D1 (de) 2005-04-20 2005-04-20 Hilfsschalter für einen Niederspannungsverteiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05405302A EP1715500B1 (fr) 2005-04-20 2005-04-20 interrupteur auxiliaire distributeur électrique à basse tension

Publications (2)

Publication Number Publication Date
EP1715500A1 true EP1715500A1 (fr) 2006-10-25
EP1715500B1 EP1715500B1 (fr) 2009-03-18

Family

ID=34979488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05405302A Active EP1715500B1 (fr) 2005-04-20 2005-04-20 interrupteur auxiliaire distributeur électrique à basse tension

Country Status (4)

Country Link
EP (1) EP1715500B1 (fr)
AT (1) ATE426243T1 (fr)
DE (1) DE502005006874D1 (fr)
ES (1) ES2323077T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013010559A1 (fr) 2011-07-19 2013-01-24 Abb Technology Ag Commutateur auxiliaire combinant des éléments rotatifs et linéaires
ES2496015T3 (es) 2012-03-21 2014-09-18 Abb Schweiz Ag Dispositivo para señalizar la posición de conmutación de un interruptor de baja tensión con un interruptor de baja tensión

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4468547A (en) * 1983-01-27 1984-08-28 Challenger Caribbean Corporation Bus bar connector system
WO1989011171A1 (fr) * 1988-05-06 1989-11-16 United Technologies Automotive, Inc. Assemblage de panneau de porte modulaire avec nterface de contact electrique pour vehicule automobile
EP0891012A2 (fr) * 1997-07-09 1999-01-13 Siemens Aktiengesellschaft Dispositif de connexion électrique
DE20117313U1 (de) * 2001-10-25 2002-03-28 Klimmeck Kay Kontaktfeder für Niedervoltflächenleitersysteme
EP1353350A2 (fr) * 2002-04-12 2003-10-15 ABB PATENT GmbH Interrupteur auxiliaire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4468547A (en) * 1983-01-27 1984-08-28 Challenger Caribbean Corporation Bus bar connector system
WO1989011171A1 (fr) * 1988-05-06 1989-11-16 United Technologies Automotive, Inc. Assemblage de panneau de porte modulaire avec nterface de contact electrique pour vehicule automobile
EP0891012A2 (fr) * 1997-07-09 1999-01-13 Siemens Aktiengesellschaft Dispositif de connexion électrique
DE20117313U1 (de) * 2001-10-25 2002-03-28 Klimmeck Kay Kontaktfeder für Niedervoltflächenleitersysteme
EP1353350A2 (fr) * 2002-04-12 2003-10-15 ABB PATENT GmbH Interrupteur auxiliaire

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ABB / NORMELEC / CMC: "Technischer Katalog smissline-s Innovation mit System - Schutzgeräte mit Stecktechnik", 19 April 2005, ABB, ZÜRICH, XP002347060 *

Also Published As

Publication number Publication date
ATE426243T1 (de) 2009-04-15
DE502005006874D1 (de) 2009-04-30
ES2323077T3 (es) 2009-07-06
EP1715500B1 (fr) 2009-03-18

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