EP3979280A1 - Agencement de pôle de commutation moyenne tension - Google Patents

Agencement de pôle de commutation moyenne tension Download PDF

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Publication number
EP3979280A1
EP3979280A1 EP20199836.6A EP20199836A EP3979280A1 EP 3979280 A1 EP3979280 A1 EP 3979280A1 EP 20199836 A EP20199836 A EP 20199836A EP 3979280 A1 EP3979280 A1 EP 3979280A1
Authority
EP
European Patent Office
Prior art keywords
drive
insulating housing
switching pole
pushrod
medium voltage
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Withdrawn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
EP20199836.6A
Other languages
German (de)
English (en)
Inventor
Dietmar Gentsch
Christian Reuber
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 EP20199836.6A priority Critical patent/EP3979280A1/fr
Publication of EP3979280A1 publication Critical patent/EP3979280A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
    • H01H3/58—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using friction, toothed, or other mechanical clutch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • H01H2003/405—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing using a walking nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6665—Details concerning the mounting or supporting of the individual vacuum bottles

Definitions

  • the present invention relates to a medium voltage switching pole arrangement, a medium voltage switching pole drive arrangement, a medium voltage switching pole drive arrangement system, a medium voltage switchgear and to a medium voltage switchgear operation system.
  • a medium voltage switching pole arrangement comprising:
  • the drive is configured to rotate its threaded portion that matches the threaded portion of the pushrod, like a rotating motor, and the pushrod is configured in a way that it cannot rotate so that the rotation of the drive is resulting in a linear movement of the pushrod along the centre axis of the insulating housing.
  • the drive is configured to move its threaded portion that matches the threaded portion of the pushrod linearly along the centre axis of the insulating housing, like a linear actuator, and so to move the pushrod.
  • the threaded portion of the drive and the threaded portion of the pushrod are then fixedly connected, e.g. by means of a locking nut.
  • the standardized interface comprises a first mounting plane.
  • the insulating housing comprises a plurality of mounting means that extend from the first mounting plane.
  • the plurality of mounting means of the insulating housing are configured to engage with a plurality of mounting means of the drive.
  • the plurality of mounting means of the insulating housing are a plurality of screw holes in the insulting housing. Openings of the plurality of screw holes are located in the first mounting plane.
  • the plurality of screw holes in the insulating housing are configured to match the plurality of mounting means of the drive.
  • the standardized interface comprises an inner assembly area measured perpendicularly to the centre axis of the insulating housing that is configured to accommodate any drive of the plurality of drives.
  • the standardized interface comprises an inner assembly depth measured parallel to the centre axis of the insulating housing that is configured accommodate any drive of the plurality of drives.
  • the standardized interface comprises a second mounting plane located between the first mounting plane and the vacuum interrupter.
  • the insulating housing comprises a plurality of mounting means that extend from the second mounting plane.
  • the plurality of mounting means of the insulating housing are configured to engage with a plurality of mounting means of a support plate of the drive.
  • a first end of an opening spring is configured to be fixed to the support plate and a second end of the opening spring is configured to be fixed to the pushrod.
  • the plurality of mounting means of the insulating housing are a plurality of screw holes in the insulting housing. Openings of the plurality of screw holes are located in the second mounting plane.
  • the plurality of screw holes in the insulating housing are configured to match the plurality of mounting means of the support plate of the drive.
  • the second mounting plane is indented with the first mounting plane.
  • a medium voltage switching pole drive arrangement comprising:
  • a medium voltage switching pole drive arrangement system comprising:
  • the plurality of drives comprises a mechanical drive and an electrical drive.
  • a medium voltage switchgear comprising a medium voltage switching pole arrangement according to the first aspect, and/or a medium voltage switching pole drive arrangement according to the second aspect.
  • a medium voltage switchgear operation system comprising:
  • Figs. 1-4 relate to a new design of a medium voltage switching pole arrangement.
  • An example of the medium voltage switching pole arrangement comprises an insulating housing 10 with an upper terminal 20 and a lower or lateral terminal 50, a vacuum interrupter 30 with a fixed contact 32 and a moveable contact 34, a flexible or slidable contact 40, and a pushrod 60.
  • the vacuum interrupter is located within the insulating housing.
  • the pushrod 60 is located within the insulating housing 10.
  • a first end of the pushrod 60 is coupled to the moveable contact 34 and to the flexible or slidable contact 40.
  • the flexible or slidable contact 40 is also connected to the lower or lateral terminal 50.
  • a second end 66 of the pushrod 60 comprises a threaded portion 64.
  • the pushrod 60 is configured to move along a centre axis of the insulating housing 10 up and down to connect to and disconnect the contacts of the VI.
  • the insulating housing 10 comprises a standardized interface 100 to which any drive 400 of a plurality of drives 400 can be mounted, such that a shaft of the drive, with a threaded portion 420 that matches the threaded portion 64 of the pushrod 60, when rotated is configured to move the pushrod 60 along the centre axis of the insulating housing 10.
  • the standardized interface 100 comprises a first mounting plane 105.
  • the insulating housing 10 comprises a plurality of mounting means 120 that extend from the first mounting plane 105.
  • the plurality of mounting means 120 of the insulating housing 10 are configured to engage with a plurality of mounting means (410) of the drive.
  • the plurality of mounting means 120 of the insulating housing are a plurality of screw holes 120 in the insulting housing. Openings of the plurality of screw holes are located in the first mounting plane 105.
  • the plurality of screw holes 120 in the insulating housing 10 are configured to match the plurality of mounting means 410 of the drive.
  • the standardized interface 100 comprises an inner assembly area 130 measured perpendicularly to the centre axis of the insulating housing 10 that is configured to accommodate any drive 400 of the plurality of drives 400.
  • the standardized interface 100 comprises an inner assembly depth 140 measured parallel to the centre axis of the insulating housing 10 that is configured accommodate any drive 400 of the plurality of drives 400.
  • the standardized interface 100 comprises a second mounting plane 205 located between the first mounting plane 105 and the vacuum interrupter 30.
  • the insulating housing 10 comprises a plurality of mounting means 220, 320 that extend from the second mounting plane 205.
  • the plurality of mounting means 220, 320 of the insulating housing 10 are configured to engage with a plurality of mounting means of a support plate 440 of the drive.
  • a first end of an opening spring 430 is configured to be fixed to the support plate 440 and a second end of the opening spring 430 is configured to be fixed to the pushrod 60.
  • the plurality of mounting means 220, 320 of the insulating housing are a plurality of screw holes 220, 320 in the insulting housing. Openings of the plurality of screw holes are located in the second mounting plane 205.
  • the plurality of screw holes 220, 320 in the insulating housing 10 are configured to match the plurality of mounting means of the support plate 440 of the drive.
  • the second mounting plane 205 is indented with the first mounting plane 105.
  • a medium voltage switching pole drive arrangement as described above can comprise a drive 400, but can be manufactured without a drive.
  • a medium voltage switching pole drive arrangement system can have a medium voltage switching pole arrangement as described above and a plurality of drives 400.
  • a customer can have a at least two drives with different functionalities that can each individually be mounted to the medium voltage switching pole arrangement, and can choose which drive to use.
  • the plurality of drives comprises a mechanical drive and an electrical drive.
  • a medium voltage switchgear can have the medium voltage switching pole arrangement as described above.
  • a medium voltage switchgear can have the medium voltage switching pole drive arrangement as described above.
  • a medium voltage switchgear operation system can have a medium voltage switchgear with a medium voltage switching pole arrangement as described above, with a plurality of drives that can be mounted to the switching pole arrangement.
  • the customer has a medium voltage switchgear and a medium voltage switching pole drive arrangement system as described above.
  • a standardised interface is added to a switching pole arrangement so that the switching part or even pole part with for example a high-helix thread can be used with a variety of drives in a modular way.
  • rotative drives can be used.
  • the rotation of the drive is then transferred into a linear movement of the pushrod.
  • the high helix of the thread supports fast operation of the switch, as e.g. a single rotation of the drive can be sufficient for a full closing or opening operation of the switch.
  • linear or "push-pull” drives can be used that would directly move the pushrod up and down.
  • the threads of the drive and the pushrod would then be locked, e.g. using a locking nut.
  • Fig. 1 shows a switching pole 1 with a high helix thread in the pushrod and a standardised interface for a drive.
  • the switching pole 1 is also referred to as a switching pole arrangement.
  • the switching pole 1 consists of an insulating housing 10. Assembled or casted into the insulating housing is an upper terminal 20, a vacuum interrupter (VI) 30 and a lower or lateral terminal 50.
  • the upper terminal 20 is also the upper end of the VI 30 that is connected to the fixed contact 32.
  • the moveable contact 34 of the VI 30 is connected by a flexible conductor or sliding contact 40 to the lower or lateral terminal 50 so that current can flow through the VI (or the other switching device) from the upper terminal 20 to the lower terminal 50 or vice versa when the VI is closed.
  • a pushrod 60 is assembled to the moveable contact 34 of the VI and to the flexible or slidable contact 40 so that the VI can be opened or closed by a drive that is to be assembled or mounted to the lower end of the pushrod.
  • the drive pushes the pushrod 60 against the moveable contact 34 of the VI 30 so that the contacts of the VI are firmly closed with the force of the contact spring 62 that is integrated in 60 in this example.
  • the contact spring 62 is however not essential.
  • the switching pole 1 has a standardised interface 100, so that different kinds of drives can be used with the same switching pole 1. This enables different technical requirements or customer preferences to be realised with the same switching pole.
  • a mechanical rotative drive can be used where the switching pole just has the task to switch ON and OFF.
  • an electrical rotative drive like an electrical motor can be used when the opening and/or closing operation must be performed in a very controlled manner, e.g. for switching operations that are synchronised with the frequency of the network.
  • the standardised interface 100 comprises:
  • Fig. 2 shows an optional second mounting plane 205. This can advantageously be used in case the drive requires an external opening spring as shown in Fig. 4 .
  • the interface additionally comprises:
  • Fig. 3 shows an optional second mounting plane 305 indented with the first mounting plane 105. This can advantageously be used to save space.
  • the interface additionally comprises:
  • Fig. 4 shows an example how a drive 400 can be installed into the switching pole 1 with the standardised interface 100.
  • the drive 400 provides a thread 420 that matches the thread 64 of the pushrod.
  • the drive 400 provides assembly features 410 that match the screw holes 120 provided by the standardized interface 100.
  • the size of the drive 400 matches the space provided by the standardized interface 100.
  • the drive 400 may require an external opening spring.
  • the opening spring can advantageously be placed around the lower part of the pushrod, as there is space available if the upper end of a metallic opening spring does not come too close to the lower end of the VI for dielectric reasons.
  • An upper support plate 440 is assembled onto the second mounting plane 205.
  • the upper support plate 440 does not necessarily have to be flat as shown; it could also be indented or deep-drawn so that the upper end of the opening spring 430 is higher or lower than the second mounting plane 205 (plus the thickness of 440).
  • the upper support plate 440 defines the fixed upper end of the opening spring 430.
  • Shown at 68 is a plate that can optionally be assembled onto the lower end of the pushrod 60 to support the lower end of the opening spring 430. When the pushrod is moved from a lower position to a higher position, i.e. when the switch in closed, the opening spring is compressed and so charged. This energy is used for driving the pushrod downwards in a subsequent opening operation.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP20199836.6A 2020-10-02 2020-10-02 Agencement de pôle de commutation moyenne tension Withdrawn EP3979280A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20199836.6A EP3979280A1 (fr) 2020-10-02 2020-10-02 Agencement de pôle de commutation moyenne tension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20199836.6A EP3979280A1 (fr) 2020-10-02 2020-10-02 Agencement de pôle de commutation moyenne tension

Publications (1)

Publication Number Publication Date
EP3979280A1 true EP3979280A1 (fr) 2022-04-06

Family

ID=72744639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20199836.6A Withdrawn EP3979280A1 (fr) 2020-10-02 2020-10-02 Agencement de pôle de commutation moyenne tension

Country Status (1)

Country Link
EP (1) EP3979280A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568804A (en) * 1983-09-06 1986-02-04 Joslyn Mfg. And Supply Co. High voltage vacuum type circuit interrupter
US5889248A (en) * 1997-09-08 1999-03-30 Abb Power T&D Company Inc. Operating mechanism for combined interrupter disconnect switch
WO2001057896A1 (fr) * 2000-02-03 2001-08-09 Abb Ab Interrupteur de circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568804A (en) * 1983-09-06 1986-02-04 Joslyn Mfg. And Supply Co. High voltage vacuum type circuit interrupter
US5889248A (en) * 1997-09-08 1999-03-30 Abb Power T&D Company Inc. Operating mechanism for combined interrupter disconnect switch
WO2001057896A1 (fr) * 2000-02-03 2001-08-09 Abb Ab Interrupteur de circuit

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