EP0800194B1 - Dispositif pour détecter la position finale d'un levier de rupture mobile dans son contact fixe, associé à ce levier d'un commutateur pour haute tension ou tension moyenne - Google Patents

Dispositif pour détecter la position finale d'un levier de rupture mobile dans son contact fixe, associé à ce levier d'un commutateur pour haute tension ou tension moyenne Download PDF

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Publication number
EP0800194B1
EP0800194B1 EP97104829A EP97104829A EP0800194B1 EP 0800194 B1 EP0800194 B1 EP 0800194B1 EP 97104829 A EP97104829 A EP 97104829A EP 97104829 A EP97104829 A EP 97104829A EP 0800194 B1 EP0800194 B1 EP 0800194B1
Authority
EP
European Patent Office
Prior art keywords
contact piece
switch
contactpiece
contact
detecting
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
EP97104829A
Other languages
German (de)
English (en)
Other versions
EP0800194A3 (fr
EP0800194A2 (fr
Inventor
Harald Dr. Fink
Gerhard Hörner
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 Patent GmbH
Original Assignee
ABB Patent GmbH
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 Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0800194A2 publication Critical patent/EP0800194A2/fr
Publication of EP0800194A3 publication Critical patent/EP0800194A3/fr
Application granted granted Critical
Publication of EP0800194B1 publication Critical patent/EP0800194B1/fr
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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • 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
    • H01H2071/048—Means for indicating condition of the switching device containing non-mechanical switch position sensor, e.g. HALL sensor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0046—Limit switches, also fail-safe operation or anti-tamper considerations

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • a medium voltage switchgear there are, among other things, earthing switches with those in the event of maintenance, inspection or repair or a malfunction and Like. Certain parts of the switchgear are grounded. Often these have earthing switches as a movable contact piece a separating knife, which is grounded in a fixed Ground contact piece strikes or is retracted. With a three-pole system all three cutting knives are driven with a single drive shaft, so that all phases are grounded simultaneously.
  • the object of the invention is to provide a device of the type mentioned in the introduction, with which a visual inspection or similar visual assessments are no longer required are, and individual error opportunities in the detection of the grounded switch position are excluded and the means for this are arranged in a suitable place.
  • the senor is a reed contact that is in a bore is housed in the fixed contact piece.
  • the department 12 is separated from the department 13 by means of a vertical front wall 26, to which a drive 27 is attached, the contact knife via a threaded spindle 28 24 from the switch-on position in which it is in contact with the fixed contact piece 23 Connection arrives, is pivoted into an earthing position in which the separating knife or movable contact piece 24 contacted with a ground contact piece 29; this The point is the ground contact point 30.
  • This system is mainly known as the ZX1 switchgear, see brochure ABB Calor Emag Heidelberganlagen AG, metal-enclosed, gas-insulated switchgear TYPE ZX1, publication No.DEACE 2043 95 D.
  • the drive 27 together with the threaded spindle 28 and the transmission device the rotational movement of the threaded spindle 28 on the cutting knife 24 of each phase designed so that an error and break cannot occur. Nevertheless it is expedient to have an indication of whether the contact point 30 is closed and whether the disconnect knife is actually in its end position in the ground contact is retracted without a visual inspection being necessary.
  • FIG. 2 shows an enlarged view of the contact point 30 with the end of the cutting knife 24 and the fixed earth contact piece 29.
  • a permanent magnet 31 is attached, and is inside the fixed contact piece 29 a bore 32 is provided, in which the free end of the contact piece facing Section a reed switch contact 33 is housed.
  • the bore 32 is after led out through the front wall 26, and between the contact piece 29 and the front wall 26 is located in the region of the bore 32 and is aligned therewith Breakthrough 34 within the front wall 26 a seal 35 so that the electrical Feed lines 36 of the reed contact switch 33 are led outwards can.
  • the movement of the cutting knife 24 takes place in the direction of arrow P, driven by the threaded spindle 28 shown partially in section.
  • the contact piece 29 is by means of a screw connection 37 on the inside of the Front wall 26 attached, seals 38 must be provided here, too the department 12, in which the contact point 30 is located, is filled with protective gas.
  • the individual reed contact switches 33, 39 and 40 are shown schematically Series switched, with an indicator lamp 41 or other indicator or Logging device are connected. The display only takes place if all reed contacts, which act here as NO contacts are actuated.
  • the permanent magnet 31 reaches its end position and only in its end position in the area of the reed contact switch 33, so that the reed contact switch 33, like the other reed contact switches of the other phases, is closed so that, for example, the indicator lamp 41 lights up and one can see that all movable cutting knives 24 are in their grounding position, are in their end position within the contact pieces 29.
  • a separating knife 24 is located in front of a contact piece 29, if it has not yet come into contact with it, then the permanent magnet acts 31 also on the reed contact switch, and there is no indication. It can be used to detect whether all disconnecting knives actually have their earthing position have reached or not.
  • a contact piece 42 which is essentially the same as the contact piece 29 and which again cooperates with the separating knife 24 which is actuated by the drive spindle 28.
  • a coupling rod 44 is slidably mounted within the contact piece 42 in which a coupling rod 44 is slidably mounted.
  • This coupling rod 44 has an extension 45 in the region of the front partition 26, and this radial extension 45 can move in a space 46 which is closed off by a recess 47 in the outside of the wall 26.
  • a compression spring 48 which presses the connecting rod 44 upward in the direction of arrow P 1 against the top of the space 46.
  • the contact piece 24 When the contact piece 24 reaches its end position, it pushes the connecting rod over the driver 51 against the pressure of the spring 48 down so that the permanent magnet 49 comes into the immediate vicinity of the reed contact 50, so that it closes and emits a signal.
  • the partition wall 26 is in the area of the reed contact 50 so thin that the effect of the permanent magnet 49 through the floor is passed through to the sensor 50.
  • the partition 26 has a bore in the area of the reed contact 50. In in this case the arrangement according to FIG. 3 would be for gas-insulated switchgear with hermetic Encapsulation cannot be used
  • the switching position is directly on the contacting Position, d. H. directly at the actual contact point in the end position of the Cutting knife detected.
  • the switch position of each switch pole can be monitored individually and be displayed selectively. Due to the selected circuit of the reed contacts self-monitoring of the switch position monitoring system is guaranteed.
  • the arrangement of the reed contact within the Contact piece 29 is selected so that occurring, for example, in the event of a short circuit electromagnetic fields do not actuate or influence the reed contact switch. This is achieved in the arrangement according to FIG. 2 in that the Longitudinal axis of the reed contact with the direction of the streamlines within the contact piece 29 matches or runs parallel to it.
  • connection rod 44 could also only be accommodated in the contact piece 42 whereas switch 50 is in a blind hole in wall 26 is housed in the immediate vicinity of the inner surface of the wall 26.
  • switch 50 is in a blind hole in wall 26 is housed in the immediate vicinity of the inner surface of the wall 26.
  • the connecting rod 44 would also pass through to the outside not mandatory. What is important here is the contactless actuation of the sensor 50 through the permanent magnet 49.
  • the invention is also based on a specific ground contact point Switchgear described.
  • movable contact piece can also be a thrust disconnect switch and thrust earthing switch; there are no limits here.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Mechanisms For Operating Contacts (AREA)

Claims (2)

  1. Dispositif pour détecter l'obtention de la position finale d'un élément de contact mobile dans un élément de contact fixe correspondant d'un commutateur pour moyenne ou haute tension, un aimant permanent (31, 49) étant couplé avec l'extrémité libre de l'élément de contact mobile (24) au moins seulement au moment d'atteindre l'élément de contact fixe (29, 42) et la position finale, qu'un capteur (33, 50) qui détecte l'aimant permanent (31, 49) est associé à l'élément de contact fixe correspondant (29, 42), et que le capteur (33, 50) délivre un signal au moment d'atteindre la position finale de l'élément de contact mobile (24), lorsque l'aimant permanent (31, 49) arrive dans la zone active du capteur (33, 50), caractérisé en ce que l'aimant permanent (31) est utilisé sur l'extrémité libre de l'élément de contact mobile (24) et le capteur (33) à l'intérieur de l'élément de contact fixe (29).
  2. Dispositif selon la revendication 1, caractérisé en ce que le capteur est un contact Reed qui est logé dans un orifice (32) dans l'élément de contact fixe (29).
EP97104829A 1996-03-28 1997-03-21 Dispositif pour détecter la position finale d'un levier de rupture mobile dans son contact fixe, associé à ce levier d'un commutateur pour haute tension ou tension moyenne Expired - Lifetime EP0800194B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19612338A DE19612338A1 (de) 1996-03-28 1996-03-28 Einrichtung zum Detektieren des Erreichens der Endstellung eines beweglichen Kontaktstückes in seinem zugehörigen festen Kontaktstück eines Schalters für Mittel- oder Hochspannung
DE19612338 1996-03-28

Publications (3)

Publication Number Publication Date
EP0800194A2 EP0800194A2 (fr) 1997-10-08
EP0800194A3 EP0800194A3 (fr) 1999-01-20
EP0800194B1 true EP0800194B1 (fr) 2004-06-09

Family

ID=7789725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104829A Expired - Lifetime EP0800194B1 (fr) 1996-03-28 1997-03-21 Dispositif pour détecter la position finale d'un levier de rupture mobile dans son contact fixe, associé à ce levier d'un commutateur pour haute tension ou tension moyenne

Country Status (2)

Country Link
EP (1) EP0800194B1 (fr)
DE (2) DE19612338A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29812855U1 (de) 1998-07-20 1998-10-01 Abb Patent Gmbh, 68309 Mannheim Antriebs- und Steuereinheit für einen dreiphasigen Schalter
DE102011107896A1 (de) * 2011-07-18 2013-01-24 Abb Technology Ag Anordnung zur Überwachung eines Antriebs für einen Leistungsschalter
DE102014203058A1 (de) * 2014-02-20 2015-08-20 Siemens Aktiengesellschaft Überwachungseinrichtung zur Überwachung eines Gasdruckes und gasisolierte Schaltanlage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411758B4 (de) * 1994-04-06 2006-04-13 Siemens Ag Vorrichtung zur Erkennung einer mechanischen Berührung zweier Bauteile, insbesondere für Kraftfahrzeuge
DE4430382A1 (de) * 1994-08-26 1996-02-29 Siemens Ag Elektromechanisches Schaltgerät

Also Published As

Publication number Publication date
EP0800194A3 (fr) 1999-01-20
DE59711694D1 (de) 2004-07-15
DE19612338A1 (de) 1997-10-02
EP0800194A2 (fr) 1997-10-08

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