WO2021196024A1 - Appareil permettant d'entraîner un corps d'un commutateur haute tension - Google Patents

Appareil permettant d'entraîner un corps d'un commutateur haute tension Download PDF

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Publication number
WO2021196024A1
WO2021196024A1 PCT/CN2020/082584 CN2020082584W WO2021196024A1 WO 2021196024 A1 WO2021196024 A1 WO 2021196024A1 CN 2020082584 W CN2020082584 W CN 2020082584W WO 2021196024 A1 WO2021196024 A1 WO 2021196024A1
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WO
WIPO (PCT)
Prior art keywords
bar
pin
switch
groove
move
Prior art date
Application number
PCT/CN2020/082584
Other languages
English (en)
Inventor
Hongbing LIAO
Hai Liu
Hauke Peters
Original Assignee
Abb Power Grids Switzerland 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 Power Grids Switzerland Ag filed Critical Abb Power Grids Switzerland Ag
Priority to PCT/CN2020/082584 priority Critical patent/WO2021196024A1/fr
Priority to CN202080099487.7A priority patent/CN115362521A/zh
Publication of WO2021196024A1 publication Critical patent/WO2021196024A1/fr

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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
    • H01H33/02—Details
    • H01H33/42—Driving mechanisms
    • 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
    • H01H9/0066—Auxiliary contact devices

Definitions

  • Example embodiments of the present disclosure generally relate to a technology of an electric apparatus and more particularly, to an electric apparatus for driving a body of a high voltage switch.
  • HV high voltage
  • the industrial standard requires that the position indicator and auxiliary switches for the HV switches must not indicate the opening and closing position until the moving contact of the body of the HV switch has physically reached the final opening and closing position.
  • Example embodiments of the present disclosure propose a solution of an apparatus for driving a high voltage switch with low cost and simplified design.
  • an apparatus for driving a body of a HV switch comprising a pin, a mechanism assembly comprising a first bar, a cam comprising a cam groove; a motor adapted to cause the pin to move from a first position to a second position in a first direction.
  • the pin is adapted to move in a first groove of the first bar to cause the first bar to rotate to generate a first signal, the first signal indicating a first status of the HV switch; and enter the cam groove from the first groove at a first driving position between the first and second positions to cause a moving contact of the body of the HV switch to move.
  • an electric system comprising a body of the HV switch and an apparatus of the first aspect adapted to drive the body of the HV switch.
  • a method for manufacturing an apparatus for driving a body of a HV switch comprises providing a pin, providing a mechanism assembly comprising a first bar, providing a cam comprising a cam groove and providing a motor adapted to cause the pin to move from a first position to a second position in a first direction.
  • the pin is adapted to move in a first groove of the first bar to cause the first bar to rotate to generate a first signal, the first signal indicating a first status of the HV switch, and enter the cam groove from the first groove at a first driving position between the first and second positions to cause a moving contact of the body of the HV switch to move.
  • Fig. 1 is a stereoscopic view of an apparatus for driving a body of a HV switch from a first perspective in accordance with some example embodiments of the present disclosure
  • Fig. 2 is a stereoscopic view of the apparatus of Fig. 1 from a second perspective in accordance with some example embodiments of the present disclosure
  • Fig. 3 is a top view illustrating a first stage of the apparatus of Figs. 1 and 2 in accordance with some example embodiments of the present disclosure
  • Fig. 4 is a top view illustrating a second stage of the apparatus of Figs. 1 and 2 in accordance with some example embodiments of the present disclosure
  • Fig. 5 is a top view illustrating a third stage of the apparatus of Figs. 1 and 2 in accordance with some example embodiments of the present disclosure.
  • Fig. 6 illustrates a flowchart of a method for manufacturing an apparatus for driving a body of a HV switch in accordance with some example embodiments of the present disclosure.
  • the term “comprises” or “includes” and its variants are to be read as open terms that mean “includes, but is not limited to. ”
  • the term “or” is to be read as “and/or” unless the context clearly indicates otherwise.
  • the term “based on” is to be read as “based at least in part on. ”
  • the term “being operable to” is to mean a function, an action, a motion or a state can be achieved by an operation induced by a user or an external mechanism.
  • the term “one embodiment” and “an embodiment” are to be read as “at least one embodiment. ”
  • the term “another embodiment” is to be read as “at least one other embodiment. ”
  • high voltage (HV) refers to a voltage above 72.5 kV. Since the voltage is very high, it is desired to make sure that the HV switch is in an opening status, if the indicator indicates that the HV switch is in the opening status.
  • Some industrial standards even require that the indicator must not indicate the opening and closing position until the moving contact of the body of the HV switch has physically reached the final opening and closing position.
  • the moving contact in the body of the HV switch and the auxiliary switch and the indicator are operated in parallel manner in some conventional approaches. Thus, these conventional approaches cannot meet the industrial standards.
  • Embodiments herein are directed to a novel configuration that separates indication of the opening/closing statuses of the HV switches from switching operation of the HV switches. Specifically, the operation of moving contact in the body of the HV switch and the operation of the auxiliary switch and the indicator are conducted in a serial manner. As such, the embodiments herein may indicate the opening and closing position only when the moving contact of the body of the HV switch has physically reached the final opening and closing position.
  • Fig. 1 is a stereoscopic view of an apparatus 20 for driving a body of a HV switch from a first perspective in accordance with some example embodiments of the present disclosure.
  • Fig. 2 is a stereoscopic view of the apparatus 20 of Fig. 1 from a second perspective in accordance with some example embodiments of the present disclosure. Description below will be made with respect to both Figs. 1 and 2.
  • the apparatus 20 is mechanically coupled to the body of the HV switch (not shown) to drive the body of the HV switch.
  • the apparatus 20 is illustrated to include two symmetrical driving units along the dotted line A-A’.
  • the apparatus 20 is illustrated to include two equivalent driving units.
  • the apparatus 20 is illustrated to be symmetrical, this is only for illustration without suggesting any limitations as to the scope of the subject matter described here.
  • the apparatus 20 may comprises only one driving unit, or the two driving units may be independent from each other and have different configurations.
  • one driving unit may be adapted to drive a body of a HV ground switch, and the other driving unit may be adapted to drive a body of an isolation switch.
  • the apparatus 20 may comprises more or less driving units. The following description will be made with reference to one driving unit for brevity.
  • the other driving unit may comprises similar or same configuration.
  • the apparatus 20 may comprise a motor 26.
  • the motor 26 drives a gear 39 such that the gear 39 rotates.
  • the apparatus 20 further comprise a pin 22, such as a pin of nut, and a screw spindle 28.
  • the screw spindle 28 may comprise a ball screw spindle.
  • the screw spindle 28 may comprise a trapezoid spindle.
  • the pin 22 is adapted to move, as the ball screw rotates, from a first position to a second position in a first direction in parallel to the dotted line A-A’.
  • the first position may be the starting position near the gear 39, and the second position may be the ending position in the first direction. It is to be understood that other mechanisms for the pin 22 may apply, as long as it may be driven to move in the first direction.
  • the apparatus 20 comprises a mechanism assembly 40 comprising a first bar 42.
  • the mechanism comprise a four-bar mechanism comprising the first and second bars 42 and 44, and a connection bar 46 connecting the first and second bars 42 and 44.
  • the first bar comprises a first groove 421
  • the second bar comprises a second groove 441.
  • the pin 22 is located in the groove 421 of the first bar 421 and adapted to start to move in the groove 421.
  • the pin 22 moves, the first bar 42 is caused to rotate, and the connection bar 46 is caused to translate accordingly.
  • the second bar 44 is caused to rotate in parallel to the rotation of the first bar 42, as the connection bar 46 translates.
  • the apparatus 20 further comprises a cam 24 independent from the mechanism assembly 40.
  • the cam 24 may comprises a first cam groove 241.
  • the pin 22 is adapted to enter the first cam groove 241 from the first groove 421 at a first driving position between the first and second positions. In case that the pin 22 arrives at the first driving position, it detaches from the first bar 42 and gradually enters the first cam groove 241 to push the cam 24 to rotate. In an embodiment, there may be a short transition period between the pin 22 detaching from the first groove 421 and entering the cam groove 241. In this period, the pin 22 may move in the first direction without causing rotation of the first bar 42 and rotation of the cam 24. As the pin 22 move in the first cam groove 241 in the first direction, the mechanism assembly 40 stay still since it is independent from the cam 24.
  • the cam 24 comprises teeth at a peripheral side and engages to a rotation element 52 of a transmission mechanism 50 comprising teeth at its lateral side.
  • the transmission mechanism 50 is coupled to the moving contact of the body of the HV switch.
  • the teeth of the rotation element is engaged to the teeth of the cam 24, such that the rotation element rotates, as the cam 24 rotates.
  • the cam 24 drive the moving contact of the body of the HV switch via the transmission mechanism.
  • the teeth are illustrated to be at the peripheral side of the cam 24, this is only for illustration without suggesting any limitations as to the scope of the subject matter described here.
  • the teeth arranged at other places of the cam are possible.
  • the cam 24 may comprise an inner hollow circle in the cam 24, with teeth arranged at the peripheral of the inner hollow circle.
  • the pin 22 detaches from the cam groove 241 and enters the second groove 441 of the second bar 44 to move in the second groove 441 and along the bulge 242 extending from the cam groove 241.
  • the pine 22 causes the second bar 44 to rotate.
  • the connection bar 46 translates and the first bar 42 rotates in parallel to the rotation of the second bar 44 accordingly, while the cam 24 stays still.
  • the pin 22 may return to the first position from the second position in a section direction opposite to the first direction, and the returning process will be reversed in order.
  • the process can be divided into three stages.
  • the first stage is that the pin 22 moves in the first groove 421 of the first bar 42.
  • the second stage is that the pin 22 moves in the cam groove 241.
  • the third stage is that the pin 22 moves in the second groove 441 of the second bar 44.
  • the first and second bars 42 and 44 rotate in parallel to each other, while the cam 24 stay still, during the first and third stages.
  • the first and second bars 42 and 44 stay still, while the cam 24 rotates, during the second stage.
  • the rotations of the first and second bars 42 and 44 are separated from the movement of the moving contact of the body of the HV switch, and it is possible to indicate the opening and closing positions only after the moving contact of the body of the HV switch has physically reached the final opening and closing position, as described below.
  • the apparatus 20 comprises a first bevel gear 31 and a second bevel gear 32.
  • the first bevel gear 31 is pivotally fixed to the first bar 42 such that the first bevel pivotally rotate as the first bar 42 rotates.
  • the second bevel gear 32 is engaged to the first bevel gear 31 with a transmission ratio of the first bevel gear 31 to the second bevel gear 32 being 1: 2.
  • a transmission ratio of the first bevel gear 31 to the second bevel gear 32 being 1: 2.
  • the first bevel 31 gear rotates by 25 degrees
  • the second bevel gear 32 rotates by 50 degrees. It is to be understood that other transmission ratios apply as well.
  • the apparatus 20 comprises an auxiliary switch 34 comprising a rod 341.
  • the second bevel gear 32 is fixed to the rod 341 such that the rod 341 rotates as the second bevel gear 32 rotates.
  • the auxiliary switch 34 is adapted to generate a first signal in response to the rod 341 rotating by the first predetermined angular degree.
  • the first signal indicates a first status of the HV switch.
  • the first predetermined angular degree may be 50 angular degrees
  • the first signal indicates a semi-closing and semi-opening status of the HV switch. It is to be understood that other angular degrees apply as well.
  • the auxiliary switch 34 transmits the first signal to a receiving device (not shown) in case that rotation of the rod 341 arrives at the predetermined angular degree, and the first signal is in a form of electrical signal.
  • the receiving device may be a remote monitoring device. The receiving device upon receiving the first signal acknowledges that the HV switch in a first position, such as the action state.
  • the auxiliary switch 34 is adapted to generate a second signal in response to the rod 341 rotating by the second predetermined angular degree.
  • the second signal indicates a second status of the HV switch.
  • the second signal indicates a closed status of the HV switch.
  • the auxiliary switch 34 may generate the second signal and the first signal successively.
  • the auxiliary switch 34 is illustrated, this is only for illustration without suggesting any limitations as to the scope of the subject matter described here. It is to be understood that other approaches applies as long as they can generate different signals in response to the rotation of the first and second bars 42 and 44.
  • the apparatus 20 may comprise a position indicator 38.
  • the position indicator 38 may be coupled to the rod 341 to indicate the positions of the HV switch in response to the rotation of the rod 341.
  • the position indicator 38 may be adapted to indicate a first position pattern in case that the pin is in the first groove, and indicate a second position patter in case that the pin is in the second groove.
  • the other driving unit of the apparatus 20 may have a similar or same configuration and operate in a similar or same manner.
  • the other driving unit of the apparatus 20 may comprises a further pin, a further mechanism assembly comprising a third bar, a further motor.
  • the cam 24 comprises a further cam groove.
  • the further motor is further adapted to cause the further pin to move from a third position to a fourth position in the first direction.
  • the further pin is adapted to move in a third groove of the third bar to cause the third bar to rotate to generate a third signal, the third signal indicating a third status of a further HV switch and enter the further cam groove from the third groove at a third driving position between the third and fourth positions to cause a contact of the further HV switch to move.
  • the third position and the fourth positions may be at positions in the first direction similar to the first and second positions, respectively.
  • the apparatus may further comprise a manual rotation mechanism to operate in a manual mode.
  • manual rotation mechanism may be a long rod, as shown by the long rod 35 of the other driving unit.
  • the manual rotation mechanism may be coupled to the gear 39, and is adapted to cause the pin 22 to move in the first direction in a manual mode.
  • an selection mechanism 36 may be incorporated such that only one of the motor driving mode and the manual mode can be implemented at a time.
  • the selection mechanism 36 comprises an interlocking mechanism.
  • FIG. 3 is a top view illustrating a first stage of the apparatus 20 of Figs. 1 and 2 in accordance with some example embodiments of the present disclosure.
  • the pin 22 is located in the first groove of the first bar 42, and is adapted to move in the first direction to cause the first bar 42 to rotate.
  • the second bar 44 rotates in parallel to the first bar 42 due to translation of the connection bar 46, while the cam 24 stays still in the first stage.
  • the moving contact of the body of the HV switch has not start to move yet, and the auxiliary switch 34 may transmit a first status signal to the remote receiving device to indicate the first status.
  • Fig. 4 is a top view illustrating a second stage of the apparatus 20 of Figs. 1 and 2 in accordance with some example embodiments of the present disclosure.
  • the pin 22 is located in the cam groove, and is adapted to move in the first direction to cause the moving contact of the body of the HV switch via the transmission mechanism 50.
  • the cam rotates in the second stage, while the second bar 44 and the first bar 42 stay still.
  • the moving contact of the body of the HV switch continue to move, and the auxiliary switch may transmit no signal since the mechanism assembly 40 stops moving, causing no movement of the bevel gears 31 and 32, the rod 341 of the auxiliary switch 34.
  • Fig. 5 is a top view illustrating a third stage of the apparatus of Figs. 1 and 2 in accordance with some example embodiments of the present disclosure.
  • the pin 22 is located in the second groove of the second bar 44, and is adapted to move in the first direction to cause the second bar 44 to rotate.
  • the first bar 42 rotates in parallel to the second bar 44 due to translation of the connection bar 46, while the cam 24 stays still in the third stage.
  • the moving contact of the body of the HV switch stops moving, and the auxiliary switch 34 may transmit a second status signal to the remote receiving device to indicate the second status.
  • the indications of the statuses are separated from operation of the body of the HV switch, ensuring that the indications of the statuses are indicated only after the moving contact of the body of the HV switch has reached the opening and closing positions. Also, there is no requirement for modifying the design of the body of the HV switch.
  • the size of the apparatus 20 can be reduced and the apparatus 20 may be arranged in a compact form to fit into a narrow space.
  • Fig. 6 illustrates a flowchart of a method for manufacturing an apparatus for driving a body of a HV switch in accordance with some example embodiments of the present disclosure.
  • the apparatus of Fig. 6 may be the apparatus 20 in an embodiment.
  • the features described with reference to Figs. 1-5 may apply to the method 600 of Fig. 6.
  • a pin At 602, it is provided providing a pin.
  • a mechanism assembly comprising a first bar.
  • a cam comprising a cam groove.
  • a motor adapted to cause the pin to move from a first position to a second position in a first direction.
  • the pin is adapted to move in a first groove of the first bar to cause the first bar to rotate to generate a first signal, the first signal indicating a first status of the HV switch, and enter the cam groove from the first groove at a first driving position between the first and second positions to cause a moving contact of the body of the HV switch to move.
  • the apparatus comprises a pin, a mechanism assembly comprising a first bar, a cam comprising a cam groove, a motor adapted to cause the pin to move from a first position to a second position in a first direction.
  • the pin is adapted to move in a first groove of the first bar to cause the first bar to rotate to generate a first signal, the first signal indicating a first status of the HV switch, and enter the cam groove from the first groove at a first driving position between the first and second positions to cause a moving contact of the body of the HV switch to move.
  • Item 2 The apparatus of Item 1, wherein the mechanism assembly comprising a second bar, and the pin is further adapted to enter a second groove of the second bar from the cam groove at a second driving position between the first and second positions to cause the moving contact of the body of the HV switch to stop moving, and move in the second groove to cause the second bar to rotate to generate a second signal, the second signal indicating a second status of the HV switch.
  • Item 3 The apparatus of Item 1 or 2, further comprising a screw spindle, wherein the pin comprises a pin of nut adapted to move in the first direction in response to rotation of the screw spindle.
  • Item 4 The apparatus of any of Items 1-3, wherein the mechanism assembly comprise a four-bar mechanism comprising the first and second bars.
  • Item 5 The apparatus of any of Items 1-4, wherein the first bar is adapted to stay still in case that the pin moves in the cam groove, and rotate in parallel to rotation of the second bar.
  • Item 6 The apparatus of any of Items 1-5, further comprising a first bevel gear coupled to the first bar and adapted to rotate in response to rotation of the first bar; a second bevel gear coupled to the first bevel gear and adapted to rotate in response to rotation of the first bevel gear; and an auxiliary switch comprising a rod coupled to the second bevel gear, the rod adapted to rotate in response to rotation of the second bevel gear, and the auxiliary switch adapted to generate the first signal in response to the rod rotating by a predetermined angular degree.
  • Item 7 The apparatus of any of Items 1-6, further comprising: a manual rotation mechanism adapted to cause the pin to move in the first direction in a manual mode.
  • Item 8 The apparatus of any of Items 1-7, further comprising a position indicator coupled to the rod and adapted to indicate a first position pattern in case that the pin is in the first groove and indicate a second position patter in case that the pin is in the second groove.
  • Item 9 The apparatus of any of Items 1-8, wherein the cam comprises teeth at a peripheral side or an inner side to drive movement of the moving contact.
  • Item 10 The apparatus of any of Items 1-9, wherein a transmission ratio of the first bevel gear to the second bevel gear is 1: 2.
  • Item 11 The apparatus of any of Items 1-10, wherein the cam comprises a bulge extending from the cam groove to enable the pin to move both in the second groove and along an edge of the bulge.
  • Item 12 The apparatus of any of Items 1-11, further comprising a gear fixedly coupled to the motor and the screw spindle and adapted to be driven by the motor to rotate the screw spindle.
  • Item 13 The apparatus of any of Items 1-12, further comprising: a further pin; a further mechanism assembly comprising a third bar; a further motor.
  • the cam comprises a further cam groove.
  • the further motor is further adapted to cause the further pin to move from a third position to a fourth position in the first direction.
  • the further pin is adapted to move in a third groove of the third bar to cause the third bar to rotate to generate a third signal, the third signal indicating a third status of a further body of a HV switch and enter the further cam groove from the third groove at a third driving position between the third and fourth positions to cause a moving contact of the further body of the HV switch to move.
  • the electric system comprises a body of a HV switch and an apparatus of any of Items 1-14 adapted to drive the body of the HV switch.
  • Item 15 It is provided a method for manufacturing an apparatus for driving a body of a HV switch.
  • the method comprises providing a pin, providing a mechanism assembly comprising a first bar, providing a cam comprising a cam groove, and providing a motor adapted to cause the pin to move from a first position to a second position in a first direction.
  • the pin is adapted to move in a first groove of the first bar to cause the first bar to rotate to generate a first signal, the first signal indicating a first status of the HV switch, and enter the cam groove from the first groove at a first driving position between the first and second positions to cause a moving contact of the body of the HV switch to move.

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Abstract

L'invention concerne un appareil (20) permettant d'entraîner un corps d'un commutateur HT. L'appareil (20) comprend : une broche (22) ; un ensemble mécanisme (40) pourvu d'une première barre (42) ; une came (24) dotée d'une rainure de came (241) ; un moteur (26) conçu pour amener la broche (22) à se déplacer d'une première position à une seconde position dans une première direction. La broche (22) est conçue pour : se déplacer dans une première rainure (421) de la première barre (42) afin d'amener la première barre (42) à tourner et produire un premier signal, le premier signal indiquant un premier état du commutateur HT ; et entrer dans la rainure de came (241) depuis la première rainure (421) à une première position d'entraînement entre les première et seconde positions afin d'amener un contact mobile du corps du commutateur HT à se déplacer. L'invention peut assurer une approche améliorée pour indiquer les positions d'ouverture et de fermeture jusqu'à ce que le contact mobile du corps du commutateur HT ait physiquement atteint la position finale d'ouverture et de fermeture.
PCT/CN2020/082584 2020-03-31 2020-03-31 Appareil permettant d'entraîner un corps d'un commutateur haute tension WO2021196024A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/082584 WO2021196024A1 (fr) 2020-03-31 2020-03-31 Appareil permettant d'entraîner un corps d'un commutateur haute tension
CN202080099487.7A CN115362521A (zh) 2020-03-31 2020-03-31 用于驱动高压开关本体的装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/082584 WO2021196024A1 (fr) 2020-03-31 2020-03-31 Appareil permettant d'entraîner un corps d'un commutateur haute tension

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WO2021196024A1 true WO2021196024A1 (fr) 2021-10-07

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997922A2 (fr) * 1998-10-27 2000-05-03 ABBPATENT GmbH Interrupteur avec un indicateur de position ou d'état, notamment pour un disjoncteur
CN102820183A (zh) * 2011-06-09 2012-12-12 西门子公司 用于电气开关的辅助开关
CN204857612U (zh) * 2015-08-06 2015-12-09 温州创富高压电气有限公司 自动重合闸断路器的分断指示机构
CN208142678U (zh) * 2018-04-26 2018-11-23 Abb股份公司 用于开关的抽出式底座模块
CN109599293A (zh) * 2018-12-20 2019-04-09 河南平高电气股份有限公司 一种间歇传动装置及开关电器用操动机构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997922A2 (fr) * 1998-10-27 2000-05-03 ABBPATENT GmbH Interrupteur avec un indicateur de position ou d'état, notamment pour un disjoncteur
CN102820183A (zh) * 2011-06-09 2012-12-12 西门子公司 用于电气开关的辅助开关
CN204857612U (zh) * 2015-08-06 2015-12-09 温州创富高压电气有限公司 自动重合闸断路器的分断指示机构
CN208142678U (zh) * 2018-04-26 2018-11-23 Abb股份公司 用于开关的抽出式底座模块
CN109599293A (zh) * 2018-12-20 2019-04-09 河南平高电气股份有限公司 一种间歇传动装置及开关电器用操动机构

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