EP3379660B1 - Hochspannungs elektrische drehkupplung - Google Patents

Hochspannungs elektrische drehkupplung Download PDF

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Publication number
EP3379660B1
EP3379660B1 EP18162699.5A EP18162699A EP3379660B1 EP 3379660 B1 EP3379660 B1 EP 3379660B1 EP 18162699 A EP18162699 A EP 18162699A EP 3379660 B1 EP3379660 B1 EP 3379660B1
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EP
European Patent Office
Prior art keywords
electrical
connector
swivel
track
internal chamber
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.)
Active
Application number
EP18162699.5A
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English (en)
French (fr)
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EP3379660A1 (de
Inventor
Laurent Saint-Michel
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Euro Techniques Industries
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Euro Techniques Industries
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Publication date
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Publication of EP3379660A1 publication Critical patent/EP3379660A1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/64—Devices for uninterrupted current collection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/46—Auxiliary means for improving current transfer, or for reducing or preventing sparking or arcing
    • H01R39/48—Auxiliary means for improving current transfer, or for reducing or preventing sparking or arcing by air blast; by surrounding collector with non-conducting liquid or gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the present invention relates to electric rotary joints and more particularly to high voltage electric rotary joints.
  • An electrical rotating joint also called an electrical rotating collector or an electrical " swivel ", is an electromechanical device used to transfer electricity between two parts moving relative to each other (one part being considered fixed or "Geostationary" and the other rotary).
  • the general principle of such a device is based on the implementation of circular conductive tracks cooperating with movable friction blocks in order to establish electrical connections, typically according to several electrical phases.
  • Electric rotating joints are commonly used in robotics, especially on production lines.
  • FIG. 1 illustrates such an example of use.
  • an electrical rotary joint 100 is here used on board a ship 105 to establish an electrical junction between a cable 110 connected to an underwater electrical system (not shown) and a cable 115 connected to an electrical system of the ship. 105.
  • the electric rotary joint is generally a high voltage electric rotary joint used for voltages greater than 1500 V in direct current or 1000 V in alternating current, allowing the transfer of a significant electrical power between a fixed structure connected to the seabed and a mobile part such as a floating production, storage and unloading vessel (or FPSO, acronym for Floating Production, Storage and Offloading vessel in English terminology).
  • a floating production, storage and unloading vessel or FPSO, acronym for Floating Production, Storage and Offloading vessel in English terminology.
  • the electrical rotary joints used generally comprise an internal chamber inside which are placed conductive tracks and associated friction blocks.
  • the internal chamber is filled with a dielectric fluid, typically oil.
  • the minimum distance between the conductive tracks is linked to the dielectric strength of the medium in which they are located, the dielectric strength of the oil being able to be ten times greater than that of the air (under a standard pressure, for example normal pressure of one atmosphere). It is recalled here that the dielectric strength of a material is expressed in kV / mm (kilovolts per millimeter) and characterizes the maximum electric field that it is possible to apply between two different electrodes before there is a electric arc and therefore a breakdown.
  • the document JP S61 277182 describes a slip ring system, for a motorcycle, comprising a fixed support and a support movable in rotation around the fixed support. An inert gas circulates between these two parts. It is filtered continuously.
  • the document US 2004/0100159 describes a cleaning and cooling system for an electrical manifold.
  • the document US 4,142,767 relates to an electric rotary joint comprising two elements rotating with respect to one another and comprising a central cavity in which pass cables and sheaths. The rotary joint further comprises a chamber in which brushes electrically cooperate with tracks to establish electrical contact between moving parts. An inert gas can be placed in the central cavity around the electric cables.
  • the invention makes it possible to solve at least one of the problems described above.
  • Embodiments of the invention relate to a high voltage electrical rotary joint comprising the features described in claim 1.
  • the insulating gas used in the internal chamber of the electric rotary joint sees its dielectric strength increase with the pressure. Consequently, a phenomenon of heating and therefore of overpressure occurring inside an electric rotary joint improves the dielectric strength of the gas and reduces the risks of breakdown.
  • the electrical rotary joint further comprises at least one connector support in the form of a cylinder, an interior part of which opens onto the closed internal chamber, one of the electrical connectors being mounted on the at least one connector support.
  • the rotary joint further comprises at least one drain and / or fill valve mounted on the at least one connector support.
  • the at least one drain and / or fill valve comprises a safety means for signaling an open position.
  • the rotary joint further comprises at least one conductor electrically connecting at least one connector to at least one friction block.
  • Each connector is mounted on a connector support here taking the form of an elbow cylinder. Other shapes can be considered.
  • the connector supports are advantageously hollow and each protect a conductor which is preferably provided with an insulating sheath to limit the risks of an electric arc (and / or improve the compactness of the device).
  • This conductor made, for example, totally or partially, of copper, is electrically connected to a conductive track or to a wiper. It can also play a structural role, in particular for maintaining (or helping to maintain) a conductive track or a friction block in a given position. It may be, for example, a rod of round or square section.
  • a space is arranged between the conductor or the insulating sheath and the wall of the connector supports.
  • the fixed part 210 comprises in particular three connectors 212-1 to 212-3 (the connector 212-1 being hidden on the figure 4 ), three connector supports 214-1 to 214-3 (the connector support 214-1 being hidden on the figure 4 ) and four conductive tracks referenced here 224-1 to 224-4.
  • the internal part 230 and the external part 232 form the envelope of the electric rotary joint 200 and isolate the electric part from the external environment. They are pieces of revolution. By way of example, they can be assembled together by means of suitable screws and bolts, preferably by inserting a seal as described with reference to figure 12 .
  • the internal part 230 comprises an interface for accommodating the mechanism 204 which itself plays the role of interface with the mobile part 250.
  • the drain and / or filling valves are advantageously positioned so as to correspond, during an emptying or filling operation, to the highest or lowest positions of the cavity formed by the internal chamber of the electric rotary joint. and the spaces of the connector supports, in order to optimize emptying or filling.
  • the figures 6 and 7 illustrate the inner part 230 and the outer part 232, respectively, of the body of the fixed part 210 of the electric rotary joint 200 shown in FIG. figure 2 . These two parts are mechanically secured to each other using, for example, suitable screws.
  • the figures 9 and 10 illustrate, in perspective and in longitudinal section, respectively, the movable part 250 of the electric rotary joint 200 shown in FIG. figure 2 .
  • the mobile part 250 comprises in particular three connectors 252-1 to 252-3, each connector being mounted on a connector support, advantageously hollow and protecting a conductor preferably provided with an insulating sheath.
  • a space, in communication with the internal chamber 202 of the electrical rotary joint, is arranged between the conductor or the insulating sheath and the wall of the connector supports.
  • connector 252-2 is mounted on connector holder 254-2 using insulating ring 256-2.
  • the connector is electrically connected to conductor 258-2 provided with an insulating sheath 260-2.
  • the space 262-2 is in communication with the internal chamber 202.
  • the connector support 254-2 is mechanically secured to the movable part 250, for example by means of bolts (as shown).
  • the mobile part comprises one or more drain and / or filling valves.
  • each connector support includes a drain and / or fill valve.
  • the connector holder 254-1 includes the drain and / or fill valve 264-1
  • the connector holder 254-2 comprises the drain and / or fill valve 264-2
  • the drain holder includes the drain and / or fill valve 264-3.
  • the fixed part 210 may comprise this or these sensor (s) or one or more other similar sensors.
  • the measured data are transmitted to a local or remote computer (not shown) to be stored and / or analyzed in order to alert, if necessary, an operator.
  • the body 270 of the mobile part 250 is here a part of revolution. It comprises a central cavity 274 configured to cooperate with the mechanism 204 in order to ensure the rotation of the central part 250 relative to the fixed part 210.
  • the figure 11 including the figures 11a, 11b and 11c , illustrates an example of a friction block seen in perspective, from the side and from above when it is in contact with a conductive track, respectively.
  • a friction block is used to establish an electrical link between a fixed part and a movable part, typically rotating, by means of friction elements.
  • a friction block generally comprises one or more graphite-based elements, called carbons, and a typically copper structure to support them and provide an electrical link.
  • the figure 12 is a sectional view of the example of an electric rotary joint illustrated in figure 2 , that is to say a sectional view of the movable parts 210 and 250 assembled.
  • a seal 1200 is here positioned between the internal part 230 and the external part 232 of the body of the fixed part 210.
  • a seal is, for example, of the O-ring type made of elastomeric material.
  • seal 1200 is a static seal.
  • a static seal of the same or different nature is positioned between each connector support and the corresponding assembly formed of a connector and the associated insulating ring.
  • the electric rotary seal 200 further comprises dynamic seals to ensure the seal between the fixed part 210 and the movable part 250, in particular the dynamic seals 1215 and 1220.
  • the dynamic seal 1215 seals between the peripheral edge of the body of the movable part 250 and the upper edge of the outer part 232 while the dynamic seal 1220 seals between the inner edge of the body of the mobile part 250 and the central part of the internal part 230.
  • Other configurations are possible.
  • a filling process is implemented. It comprises a step of injection under pressure of this gas through one or more high points of the electric rotary joint and evacuation of the air or gas previously contained in the internal chamber through one or more other high points of the electric rotary joint. .
  • the filling is carried out in a sealed and secure manner to avoid injecting, into the internal chamber, gas located outside the electric rotary joint.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Gas-Insulated Switchgears (AREA)

Claims (8)

  1. Elektrische Hochspannung-Drehkupplung (200), umfassend:
    - ein erstes und ein zweites Teil (210, 250), die relativ zueinander beweglich sind und eine geschlossene Innenkammer (202) bilden, wobei jedes der beiden Teile mindestens einen elektrischen Verbinder (212, 252) umfasst;
    - mindestens eine elektrische Bahn (224), die mit einem Verbinder des einen der beiden Teile elektrisch verbunden ist, und einen Schleifblock (266), der mit einem Verbinder des anderen der beiden Teile elektrisch verbunden ist, wobei der mindestens eine Schleifblock mit der mindestens einen elektrischen Bahn verbunden ist, um einen elektrischen Kontakt herzustellen, wobei die mindestens eine elektrische Bahn und der mindestens eine Schleifblock sich in der geschlossenen Innenkammer befinden;
    wobei die geschlossene Innenkammer (202) mit einem dielektrischen Isoliergas gefüllt ist, das eine Durchschlagfestigkeit aufweist, die größer als die der die elektrische Drehkupplung umgebenden Luft ist,
    wobei die Drehkupplung außerdem umfasst:
    - mindestens einen Verbinderträger (214, 254) in der Form eines Zylinders, von dem ein innerer Teil an der geschlossenen Innenkammer mündet, wobei einer der elektrischen Verbinder an dem mindestens einen Verbinderträger montiert ist;
    wobei die Drehkupplung gekennzeichnet ist durch
    - mindestens ein Entleerungs- und/oder Füllventil (234, 264), das an dem mindestens einen Verbindungsträger montiert ist.
  2. Elektrische Drehkupplung nach Anspruch 1, wobei das elektrische Isoliergas eine Durchschlagfestigkeit aufweist, die bei Betriebsdruck größer als 40 kV/mm ist.
  3. Elektrische Drehkupplung nach Anspruch 2, wobei das elektrische Isoliergas mindestens eines der folgenden Gase umfasst:
    - ein Gas der Familie der Fluornitrile,
    - Schwefelhexafluorid,
    - Trifluoriodmethan.
  4. Drehkupplung nach einem der Ansprüche 1-3, wobei das mindestens eine Entleerungs- und/oder Füllventil ein Sicherheitsmittel zur Signalisierung einer offenen Stellung umfasst.
  5. Drehkupplung nach einem der Ansprüche 1-4, die außerdem mindestens einen Leiter umfasst, der mindestens einen Verbinder mit mindestens einem Schleifblock elektrisch verbindet.
  6. Drehkupplung nach Anspruch 5, wobei der mindestens eine Leiter den Schleifblock in einer vorgegebenen Position hält.
  7. Drehkupplung nach einem der Ansprüche 1-6, die außerdem mindestens einen Sensor (268) umfasst, der es gestattet, Werte von mindestens einem Parameter bezüglich der Qualität des dielektrischen Isoliergases, mit welchem die Drehkupplung gefüllt ist, zu messen.
  8. Drehkupplung nach einem der Ansprüche 1 -7, wobei das erste Teil zumindest eine erste elektrische Bahn, die mit mindestens einem elektrischen Verbinder des ersten Teils elektrisch verbunden ist, und mindestens eine zweite elektrische Bahn umfasst, die mit mindestens einem Element zur Erdung des ersten Teils elektrisch verbunden ist, und wobei das zweite Teil mindestens einen ersten Schleifblock, der mit mindestens einem elektrischen Leiter des zweiten Teils elektrisch verbunden ist und mit der mindestens einen ersten elektrischen Bahn zusammenwirkt, um einen elektrischen Kontakt herzustellen, und mindestens einen zweiten Schleifblock umfasst, der mit mindestens einem Element zur Erdung des zweiten Teils elektrisch verbunden ist und mit der mindestens einen zweiten elektrischen Bahn zusammenwirkt, um einen elektrischen Kontakt herzustellen.
EP18162699.5A 2017-03-20 2018-03-20 Hochspannungs elektrische drehkupplung Active EP3379660B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1752293A FR3064122B1 (fr) 2017-03-20 2017-03-20 Joint tournant electrique haute tension

Publications (2)

Publication Number Publication Date
EP3379660A1 EP3379660A1 (de) 2018-09-26
EP3379660B1 true EP3379660B1 (de) 2021-02-17

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EP18162699.5A Active EP3379660B1 (de) 2017-03-20 2018-03-20 Hochspannungs elektrische drehkupplung

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US (1) US10666005B2 (de)
EP (1) EP3379660B1 (de)
CA (1) CA2998602A1 (de)
FR (1) FR3064122B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3095902B1 (fr) 2019-05-09 2021-06-04 Euro Techniques Ind Dispositif joint tournant électrique configuré pour équiper une installation d’exploitation de fluides, notamment sur une plateforme offshore
CN111864498B (zh) * 2020-08-10 2021-08-24 广州大健康药业有限公司 一种离心机用碟片式接线架及离心机
DE102021107552B3 (de) 2021-03-25 2022-09-29 TenneT TSO GmbH Verfahren zum Erzeugen einer gasisolierten Hochspannungssteckverbindung sowie eine gasisolierte Hochspannungssteckverbindung mit einer flüssigkeitsfördernden Einrichtung und einem Gasförderer
FR3145654A1 (fr) 2023-02-08 2024-08-09 Eti Group Dispositif joint tournant électrique haute tension configuré pour équiper une installation d’exploitation d’énergie

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Publication number Priority date Publication date Assignee Title
US4142767A (en) * 1977-11-17 1979-03-06 Amtel, Inc. Swivel assembly
US4252388A (en) * 1979-05-21 1981-02-24 Litton Systems, Inc. High power slip ring assembly
JPS61277182A (ja) * 1985-05-31 1986-12-08 株式会社東芝 高電圧用スリツプリング装置
US6612847B2 (en) * 2001-10-11 2003-09-02 Florencio Canizales, Jr. Slip plate assembly and method for conductively supplying electrical current under rotational and translational force applications
CA2412303C (en) * 2002-11-21 2010-05-04 General Electric Canada Inc. Electrical current collector cleaning and cooling for high voltage rotating machines
US7137822B1 (en) * 2005-12-21 2006-11-21 Single Buoy Moorings Inc. High voltage swivel
US8403679B2 (en) * 2008-12-01 2013-03-26 Single Buoy Moorings Inc. High voltage swivel with stacked ring-shaped conductor assemblies
US9515443B2 (en) * 2010-06-08 2016-12-06 Single Buoy Moorings Inc. Brush holder for an electrical swivel
WO2012059518A1 (en) * 2010-11-02 2012-05-10 Single Buoy Moorings Inc Improved electrical swivel design

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
CA2998602A1 (fr) 2018-09-20
FR3064122A1 (fr) 2018-09-21
US20180269642A1 (en) 2018-09-20
FR3064122B1 (fr) 2021-02-12
US10666005B2 (en) 2020-05-26
EP3379660A1 (de) 2018-09-26

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