EP1069586B1 - Tripping mechanism for automatic switches - Google Patents

Tripping mechanism for automatic switches Download PDF

Info

Publication number
EP1069586B1
EP1069586B1 EP00305986A EP00305986A EP1069586B1 EP 1069586 B1 EP1069586 B1 EP 1069586B1 EP 00305986 A EP00305986 A EP 00305986A EP 00305986 A EP00305986 A EP 00305986A EP 1069586 B1 EP1069586 B1 EP 1069586B1
Authority
EP
European Patent Office
Prior art keywords
tripping
connecting piece
trigger
functional unit
connection
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
EP00305986A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1069586A3 (en
EP1069586A2 (en
Inventor
Maris Lourdes Perdices Torres
Jose Fernando Mediavilla Telleria
Eduardo Calleja Hernandez
Javier Gomez Martin
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 Electrification Solutions SL
Original Assignee
GE Power Controls Iberica SL
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 GE Power Controls Iberica SL filed Critical GE Power Controls Iberica SL
Publication of EP1069586A2 publication Critical patent/EP1069586A2/en
Publication of EP1069586A3 publication Critical patent/EP1069586A3/en
Application granted granted Critical
Publication of EP1069586B1 publication Critical patent/EP1069586B1/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
    • 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
    • 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
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0221—Majority of parts mounted on central frame or wall
    • 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
    • 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

Definitions

  • Electric supply systems customarily include automatic switches, which are usually arranged connected with differential current detecting devices to produce tripping and resultant opening of the circuit of electrical equipment in the event of any anomaly of the rated current in the circuit.
  • the differential current detecting devices hitherto used for such purpose suffer from disadvantages that derive from the structural and functional nature of the switch mechanism forming a part of them.
  • the present invention proposes a switch mechanism for the differential current detecting devices, the embodiment of which furnishes characteristics that provide considerable structural and functional advantages.
  • Document EP 0 331 586 discloses a device according to the preamble of claim 1.
  • the invention relates to a switch mechanism for differential current detecting devices capable of being coupled to automatic switches, such as the circuit breakers provided in electric supply systems, to produce the cutout of the electric supply in the event of any current anomaly in the system.
  • the proposed mechanism consists of a frame formed by a base (1), on which are mounted the constituent elements of the functional unit of the mechanism, supplemented by a cover (2) that makes it possible to ensure positioning of the elements in the mounting while at the same time serving as support for a drive relay.
  • the functional unit comprises a manually actuated contact finger (3), which is provided incorporated in a rotary mounting, a connecting piece (4) capable of swinging motion being provided in connection therewith.
  • the connecting piece (4) is in turn connected, by means of a fork (5), with a trigger (6) which is associated with a connecting piece (7) that comes out through the base (1) of the frame, forming a means transmitting the tripping action to the automatic switch to which it is applied.
  • a lever (8) which on the other hand is provided in connection with the drive relay (not represented) that is arranged on the cover (2) of the frame.
  • the trigger (6) has a spring (9) that determines the force of actuation of the element in the corresponding rotary mounting, while the lever (8) is actuated by another spring (10), which transmits to it the force necessary for acting against the drive relay to return it to the closed position after its actuation.
  • the connecting piece (4) swings and transmits the motion to the trigger (6) in such a way that upon arrival at a point in the motion dynamic equilibrium is reached, from which time and until the contact finger (3) arrives at its position of maximum rotation, an increase in the dynamic equilibrium is produced, so that the equilibrium is maintained as long as other factors do not intervene.
  • a test circuit may be incorporated in the functional unit, to check that the detecting system is capable of recognizing a given residual current produced by the user.
  • the functional unit may in turn include a test circuit, consisting of contact springs, which makes it possible to produce remote tripping, for checking proper operating condition of the apparatus.
  • the test circuit is made up of a spring (11), which acts as movable contact with regard to a metal pin (12) that acts as fixed contact, the spring (11) being actuable by the trigger (6) to rest on or separate from the pin (12).
  • the circuit in addition comprises another spring (13), which likewise acts as movable contact with relation to the metal pin (12), this spring (13) being actuable by a button controllable by the user, for separation from or contact with the pin (12).
  • This spring (13) normally remains separated from the metal pin (12), making contact with it only when the test button is pressed.
  • the spring (11) When the apparatus is connected, the spring (11) is in the position of contact with the metal pin (12). If the test button then is pressed, the spring (13) moves to establish contact with the the pin (12) as well, whereby the circuit closes and a current is generated through it that produces tripping of the apparatus if the latter is in proper operating condition.
  • the trigger (6) keeps the spring (11) separated from the metal pin (12), so that even if the test button is pressed the circuit remains open and no current passes through it, thus avoiding the possibility that a surge of excessive duration in the disconnected state of the apparatus may produce overheating and deterioration of the test resistor.
  • the functional unit in addition comprises an arrangement of auxiliary contacts, formed by a movable contact that moves between two fixed contacts under the actuation of the actuating trigger of the connecting piece transmitting the tripping action to the automatic switch to which it is applied, making it possible to provide switching between two different circuits, for example, to furnish an indication of status, in active position or in tripping position, of the apparatus itself or of any other auxiliary element.
  • the functional unit may also include an arrangement of auxiliary contacts, by means of metal pins (14) and (15) that act as fixed contacts and a metal band (16) which, actuated by the trigger (6), acts as movable contact between the the pins (14) and (15), establishing a stable position in relation with each of them, one of which corresponds to that of connected and the other to that of disconnected differential.
  • the pins (14) and (15), as well as the band (16), are connected to the respective poles of terminals situated on the frame of the apparatus, making it possible to provide switching between two different circuits, which may for example serve to feed respective indicating devices of the positions of connection and disconnection of the apparatus.
  • the band (16) presses on the metal pin (14) corresponding to the position of connected differential; when it passes into the position of disconnection, the band (16), driven by the trigger (6), goes on to press on the other metal pin (15), providing switching between the respective circuits.
  • the mechanism that is the subject matter of the invention unquestionably proves to have very advantageous characteristics, obtaining a life of its own and preferential characteristics as compared with conventional mechanisms having the same function.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Keying Circuit Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Tumbler Switches (AREA)
EP00305986A 1999-07-15 2000-07-14 Tripping mechanism for automatic switches Expired - Lifetime EP1069586B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES009901587A ES2157161B1 (es) 1999-07-15 1999-07-15 Mecanismo de disparo para interruptores automaticos.
ES9901587 1999-07-15

Publications (3)

Publication Number Publication Date
EP1069586A2 EP1069586A2 (en) 2001-01-17
EP1069586A3 EP1069586A3 (en) 2005-11-16
EP1069586B1 true EP1069586B1 (en) 2008-04-16

Family

ID=8309237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00305986A Expired - Lifetime EP1069586B1 (en) 1999-07-15 2000-07-14 Tripping mechanism for automatic switches

Country Status (7)

Country Link
EP (1) EP1069586B1 (es)
AT (1) ATE392707T1 (es)
DE (1) DE60038594T2 (es)
ES (1) ES2157161B1 (es)
HU (1) HU223730B1 (es)
PL (1) PL199527B1 (es)
PT (1) PT1069586E (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBG20030035A1 (it) * 2003-05-20 2004-11-21 Abb Service Srl Dispositivo per interrutori di bassa tensione
US8089282B2 (en) * 2009-04-18 2012-01-03 General Electric Company Test assembly for a circuit breaker
US9847198B2 (en) 2013-09-19 2017-12-19 Labinal, Llc Plug-in power contactor and system including the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3149375A1 (de) * 1981-12-12 1983-06-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kontaktanordnung fuer einen selbstschalter
FR2609209B1 (fr) * 1986-12-29 1994-05-20 Merlin Et Gerin Interrupteur differentiel bipolaire a indicateur de defaut
DE8702467U1 (de) * 1987-02-18 1987-04-02 Brown, Boveri & Cie Ag, 6800 Mannheim Fehlerstromschutzschalter
FR2628262B1 (fr) * 1988-03-04 1995-05-12 Merlin Gerin Mecanisme de commande d'un bloc auxiliaire de declenchement pour disjoncteur modulaire
FR2646282B1 (fr) * 1989-04-20 1996-03-22 Merlin Gerin Commutateur auxiliaire a test manuel pour disjoncteur modulaire
DE9004196U1 (de) * 1990-04-11 1990-06-13 Felten & Guilleaume Energietechnik AG, 51063 Köln Prüfeinrichtung für Fehlerstromschutzschalter
DE69200059D1 (de) * 1992-05-13 1994-04-07 Hager Electro Schaltschloss für Schutzschalter und Schutzschalter, mit diesem integriert.
EP0661724A3 (fr) * 1994-01-03 1997-09-10 Omella Eva Munoz Nouveau mécanisme disjoncteur pour dispositifs électrotechniques.
IT1292339B1 (it) * 1997-05-20 1999-01-29 Gewiss Spa Cinematismo di azionamento del contatto mobile particolarmente per interruttori elettrici automatici

Also Published As

Publication number Publication date
HUP0002633A3 (en) 2003-05-28
EP1069586A3 (en) 2005-11-16
ATE392707T1 (de) 2008-05-15
DE60038594T2 (de) 2009-06-04
ES2157161A1 (es) 2001-08-01
HUP0002633A2 (hu) 2001-02-28
PL341457A1 (en) 2001-01-29
PT1069586E (pt) 2008-05-05
HU0002633D0 (en) 2000-09-28
HU223730B1 (hu) 2004-12-28
DE60038594D1 (es) 2008-05-29
ES2157161B1 (es) 2002-02-16
PL199527B1 (pl) 2008-09-30
EP1069586A2 (en) 2001-01-17

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