WO2020059032A1 - Dispositif pour ouvrir/fermer une ouverture d'insertion de tige d'actionnement d'un engrenage de commutation et engrenage de commutation dans lequel ledit dispositif est utilisé - Google Patents

Dispositif pour ouvrir/fermer une ouverture d'insertion de tige d'actionnement d'un engrenage de commutation et engrenage de commutation dans lequel ledit dispositif est utilisé Download PDF

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Publication number
WO2020059032A1
WO2020059032A1 PCT/JP2018/034544 JP2018034544W WO2020059032A1 WO 2020059032 A1 WO2020059032 A1 WO 2020059032A1 JP 2018034544 W JP2018034544 W JP 2018034544W WO 2020059032 A1 WO2020059032 A1 WO 2020059032A1
Authority
WO
WIPO (PCT)
Prior art keywords
rod insertion
opening
iron plate
operation rod
shaped iron
Prior art date
Application number
PCT/JP2018/034544
Other languages
English (en)
Japanese (ja)
Inventor
達哉 ▲濱▼田
オソン パク
透 木村
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to DE112018007989.9T priority Critical patent/DE112018007989T5/de
Priority to PCT/JP2018/034544 priority patent/WO2020059032A1/fr
Priority to JP2020547508A priority patent/JP6949241B2/ja
Publication of WO2020059032A1 publication Critical patent/WO2020059032A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/14—Shutters or guards for preventing access to contacts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00—Switchgear having carriage withdrawable for isolation
    • H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal

Definitions

  • the present application relates to a switchgear for opening and closing an operation rod insertion opening of a switchgear and a switchgear using the same.
  • the switchgear is a power distribution facility in which high-voltage bus wiring, a circuit breaker, a disconnecting switch, and the like are integrated and housed in a grounded metal housing to improve electrical safety.
  • the switchgear contacts of the switchgear cannot be opened and closed by electric operation due to the loss of control power to the breaker and a short circuit accident while the switchgear breaker is in operation, It is necessary to operate the trip button installed in front of the breaker in order to forcibly release the contacts.
  • a switch gear housing such as a front door is provided with an operation rod insertion port which is a small opening into which an operation rod is inserted for operating a trip button of the circuit breaker.
  • This switchgear has an operating rod insertion port with a shutter that is closed when the breaker is operating normally, and when it is necessary to operate the breaker with the operating rod, pull the shutter in a certain direction.
  • the operation rod insertion port can be opened.
  • the spring attached to the shutter returns to the original position, and the operation rod insertion port can be closed, preventing leakage of hot gas and improving safety when a short circuit accident occurs inside.
  • the present application has been made to solve the above-described problem, and can open and close the operation rod insertion port of the switchgear without using a spring. It is an object of the present invention to prevent the opening from being left open and prevent damage due to hot gas leakage.
  • the opening / closing device for the operation rod insertion opening of the switchgear of the present application opens and closes the operation rod insertion opening formed in the switchgear housing surface with an L-shaped vertical portion to insert the operation rod for operating the circuit breaker inside the switchgear.
  • An L-shaped iron plate, and a slide plate that engages with an L-shaped horizontal portion of the L-shaped iron plate and rotates the L-shaped iron plate by operating up and down, and by raising the slide plate,
  • the L-shaped iron plate is rotated to open the operation rod insertion opening closed by the vertical portion of the L-shape, and the L-shaped iron plate is rotated in the opposite direction as the slide plate descends due to its own weight. Is closed by an L-shaped vertical portion of an L-shaped iron plate.
  • the opening / closing device for the operation rod insertion opening of the switch gear of the present application can open and close the operation rod insertion opening without using a spring, and the operation rod insertion opening remains open due to the breakage of the spring. It is possible to prevent damage due to hot gas leakage.
  • FIG. 2 is a side sectional view of the switchgear according to the first embodiment.
  • FIG. 3 is a perspective view of a front door (front surface) having the opening / closing device according to the first embodiment.
  • FIG. 3 is an enlarged perspective view of the opening and closing device of FIG. 2.
  • FIG. 3 is a perspective view of a front door (rear surface) having the opening / closing device according to the first embodiment.
  • FIG. 5 is an enlarged perspective view of the opening / closing device of FIG. 4.
  • FIG. 1 is a side sectional view of the switchgear 100, and shows the arrangement of the operation rod insertion port 2 and the opening / closing device 6 in the switchgear 100.
  • FIG. 1 is a side sectional view of the switchgear 100, and shows the arrangement of the operation rod insertion port 2 and the opening / closing device 6 in the switchgear 100.
  • the left side of the figure corresponds to the front side of the switchgear 100, and the right side corresponds to the back side.
  • an external cable 17, a zero-phase current device 18, a voltmeter 19, and an ammeter 20 are arranged, and the bus 16 is arranged at an intermediate position.
  • a circuit breaker 15 is arranged inside the front door 1 of the switchgear 100, and a trip button 14 for interrupting current in an emergency is provided on the front of the circuit breaker 15. Further, an operation rod insertion port 2 is formed in the front door 1, and an operation rod 13 is inserted through the operation rod insertion port 2. In an emergency such as a short circuit accident, the trip button 14 on the front of the circuit breaker 15 is operated by using the operation rod 13 to forcibly open the contacts in the circuit breaker 15.
  • the opening / closing device 6 for the operation rod insertion port 2 is attached to the inside of the front door 1 in correspondence with the operation rod insertion port 2 in the drawing, and the opening / closing device 6 used in the present embodiment will be described below. Will be described in detail.
  • the operation rod insertion port 2 for inserting the operation rod 13 from outside the housing of the switchgear 100 is formed in the front door 1 of the switchgear 100.
  • the present invention is not limited to this, and the operation rod insertion port 2 can be formed in any of the door portion of the housing that covers the outside of the switchgear 100 and other portions.
  • FIGS. 3 and 5 show enlarged views of the opening / closing device portion of FIGS.
  • the operation rod insertion port 2 is formed substantially at the center of the front door 1, and the opening / closing device 6 is disposed on the back of the front door 1. Therefore, in the enlarged view shown in FIG. 3, since the opening / closing device 6 is observed through the front door 1, it is indicated by a broken line. However, since the handle 5 for operating the opening / closing device 6 projects from the back surface of the front door 1 to the front surface, it is indicated by a solid line. Although the front door 1 itself is not shown in FIG. 3, a handle extraction hole 9 formed in the front door 1 to make the handle 5 protrude from the front door 1 for description of the opening / closing device 6; The operation rod insertion port 2 formed in the front door 1 is shown using a solid line.
  • FIG. 5 is an enlarged view of the opening / closing device 6 formed on the back surface of the front door 1 shown in FIG. 4, and the opening / closing device 6 includes the holding plate 10 and the front door 1 (the description is omitted as in FIG. 3). Is formed between.
  • the opening / closing device 6 includes an L-shaped iron plate 3 serving as a shutter for opening and closing the operation rod insertion opening 2, and is linked to the L-shaped iron plate 3. It mainly comprises a slide plate 4 for rotating the iron-shaped iron plate 3.
  • the L-shaped iron plate 3 includes an L-shaped vertical portion (hereinafter, a vertical portion) serving as a shutter for closing the operation rod insertion opening 2 and an L-shaped horizontal portion (hereinafter, a horizontal portion) linked to the slide plate 4.
  • the L-shaped iron plate 3 is formed so as to rotate around a rotation shaft inserted into a through hole formed in an L-shaped bent portion of the L-shaped iron plate 3.
  • a handle 5 is fixed to one surface of the slide plate 4 with rivets as shown in FIG. On the other surface, a pin 12 corresponding to the guide hole 11 formed in the holding plate 10 is formed.
  • the curved arrow 7 indicates the rotation direction in which the L-shaped iron plate 3 operates
  • the straight arrow 8 indicates the vertical direction in which the slide plate 4 operates.
  • the L-shaped iron plate 3 is arranged so as to rotate around a rotation axis passing through the L-shaped bent portion, and the slide plate 4 holds the slide plate 4. It is arranged so as to operate in the up and down direction using a projection formed on the holding plate 10 as a guide.
  • FIGS. 3 and 5 show the operation rod insertion port 2 in a closed state, and the operation rod insertion port 2 is closed by a vertical portion of the L-shaped iron plate 3.
  • the horizontal portion of the L-shaped iron plate 3 forms a link structure by engaging with the slide plate 4.
  • the horizontal portion of the L-shaped iron plate 3 also moves in the vertical direction in accordance with the vertical movement of the slide plate 4, and as a result, the L-shaped iron plate 3 rotates in the direction indicated by the curved arrow 7 in the figure. .
  • the handle 5 protruding from the front door 1 is operated upward.
  • the slide plate 4 moves upward in the vertical direction indicated by the straight arrow 8 in the figure, links to the slide plate 4, and the horizontal portion of the L-shaped iron plate 3 also moves upward.
  • the L-shaped iron plate 3 rotates clockwise when viewed from the front, the vertical portion of the L-shaped iron plate 3 closing the operation rod insertion port 2 moves, and the operation rod insertion port 2 is opened.
  • the trip button 14 of the circuit breaker 15 can be operated.
  • the size of the handle extraction hole 9 formed for operating the handle 5 from the front door 1 and the holding plate 10 for guiding the pins attached to the slide plate 4 are provided.
  • the movable distance of the slide plate 4 can be changed, and as a result, the angle of rotation of the L-shaped iron plate 3 can be adjusted.
  • the slide plate 4 After operating the trip button 14 and pulling out the operation rod 13 from the operation rod insertion slot 2, when the handle 5 or the like is not held, the slide plate 4 is moved downward by the weight of the slide plate 4 and the handle 5.
  • the L-shaped iron plate 3 that moves and is simultaneously linked to the slide plate 4 rotates counterclockwise in the opposite direction, that is, rotates counterclockwise when viewed from the front, and is operated by the vertical portion of the L-shaped iron plate 3. Is closed.
  • the operation rod insertion port 2 is closed by the weight of the slide plate 4 or the like, so that an operation error such as forgetting to close the operation rod insertion port 2 can be avoided. This does not occur, and damage to peripheral devices due to leakage of hot gas generated inside when a short circuit occurs in the circuit breaker 15 or the like can be prevented.
  • the cost of the members can be reduced compared to a conventional opening / closing device that closes with a spring or the like like the operation rod insertion opening 2, and furthermore, there is no hot gas leakage due to the deterioration of the spring and the like, and an inexpensive and safe switching device. 6 can be obtained.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

L'objectif de la présente invention est d'obtenir un dispositif d'ouverture/fermeture d'une ouverture d'insertion de tige d'actionnement d'un engrenage de commutation, ledit dispositif empêchant une ouverture d'insertion de tige d'actionnement de rester ouverte. La présente invention est caractérisée en ce qu'elle comprend : une plaque de fer en forme de L (3) qui ouvre/ferme une ouverture d'insertion de tige d'actionnement (2) à l'aide d'une portion verticale en forme de L, l'ouverture d'insertion de tige d'actionnement (2) étant formée dans la surface d'un boîtier d'engrenage de commutation (100), dans le but d'insérer une tige d'actionnement (13) qui actionne un disjoncteur (15) à l'intérieur de l'engrenage de commutation (100) ; et une plaque coulissante (4) qui vient en prise avec une portion horizontale de la forme de L dans la plaque de fer en forme de L (3) et amène la plaque de fer en forme de L (3) à tourner en se déplaçant vers le haut et vers le bas ; la présente invention est également caractérisée en ce que la rotation de la plaque de fer en forme de L (3), en amenant la plaque coulissante (4) à se déplacer vers le haut, ouvre l'ouverture d'insertion de tige d'actionnement (2) qui a été fermée par la portion horizontale de la forme de L et la rotation de la plaque de fer en forme de L (3) dans la direction opposée, conjointement à la descente de la plaque coulissante (4) sous son propre poids, ferme l'ouverture d'insertion de tige d'actionnement (2) à l'aide de la portion verticale de la forme de L de la plaque de fer en forme de L (3).
PCT/JP2018/034544 2018-09-19 2018-09-19 Dispositif pour ouvrir/fermer une ouverture d'insertion de tige d'actionnement d'un engrenage de commutation et engrenage de commutation dans lequel ledit dispositif est utilisé WO2020059032A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112018007989.9T DE112018007989T5 (de) 2018-09-19 2018-09-19 Öffnungs/Schließ-Vorrichtung für ein Schaltstangen-Einführloch einer Schaltanlage und Schaltanlage, die diese verwendet
PCT/JP2018/034544 WO2020059032A1 (fr) 2018-09-19 2018-09-19 Dispositif pour ouvrir/fermer une ouverture d'insertion de tige d'actionnement d'un engrenage de commutation et engrenage de commutation dans lequel ledit dispositif est utilisé
JP2020547508A JP6949241B2 (ja) 2018-09-19 2018-09-19 スイッチギヤの操作ロッド挿入口の開閉装置及びこれを用いたスイッチギヤ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/034544 WO2020059032A1 (fr) 2018-09-19 2018-09-19 Dispositif pour ouvrir/fermer une ouverture d'insertion de tige d'actionnement d'un engrenage de commutation et engrenage de commutation dans lequel ledit dispositif est utilisé

Publications (1)

Publication Number Publication Date
WO2020059032A1 true WO2020059032A1 (fr) 2020-03-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/034544 WO2020059032A1 (fr) 2018-09-19 2018-09-19 Dispositif pour ouvrir/fermer une ouverture d'insertion de tige d'actionnement d'un engrenage de commutation et engrenage de commutation dans lequel ledit dispositif est utilisé

Country Status (3)

Country Link
JP (1) JP6949241B2 (fr)
DE (1) DE112018007989T5 (fr)
WO (1) WO2020059032A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122106U (ja) * 1984-07-12 1986-02-08 富士電機株式会社 閉鎖配電盤のインタロツク装置
JPH09154208A (ja) * 1995-11-28 1997-06-10 Toshiba Corp 金属閉鎖形スイッチギヤ
JPH10188745A (ja) * 1996-12-20 1998-07-21 Nissin Electric Co Ltd 遮断器のインターロック装置
JP2010098776A (ja) * 2008-10-14 2010-04-30 Hitachi Ltd スイッチギヤ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122106U (ja) * 1984-07-12 1986-02-08 富士電機株式会社 閉鎖配電盤のインタロツク装置
JPH09154208A (ja) * 1995-11-28 1997-06-10 Toshiba Corp 金属閉鎖形スイッチギヤ
JPH10188745A (ja) * 1996-12-20 1998-07-21 Nissin Electric Co Ltd 遮断器のインターロック装置
JP2010098776A (ja) * 2008-10-14 2010-04-30 Hitachi Ltd スイッチギヤ

Also Published As

Publication number Publication date
JP6949241B2 (ja) 2021-10-13
DE112018007989T5 (de) 2021-05-27
JPWO2020059032A1 (ja) 2021-08-30

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