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WO2013097175A1 - Dispositif de verrouillage mutuel mécanique entre une porte à câbles, une porte arrière et un commutateur de mise à la terre - Google Patents

Dispositif de verrouillage mutuel mécanique entre une porte à câbles, une porte arrière et un commutateur de mise à la terre Download PDF

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Publication number
WO2013097175A1
WO2013097175A1 PCT/CN2011/085018 CN2011085018W WO2013097175A1 WO 2013097175 A1 WO2013097175 A1 WO 2013097175A1 CN 2011085018 W CN2011085018 W CN 2011085018W WO 2013097175 A1 WO2013097175 A1 WO 2013097175A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
rear door
shaft
earthing switch
outer shaft
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.)
Ceased
Application number
PCT/CN2011/085018
Other languages
English (en)
Inventor
Shengxian YUE
Yunhui JIA
Jiabiao HUANG
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 Technology AG
Original Assignee
ABB Technology 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 Technology AG filed Critical ABB Technology AG
Priority to CN201180075891.1A priority Critical patent/CN104025230B/zh
Priority to PCT/CN2011/085018 priority patent/WO2013097175A1/fr
Publication of WO2013097175A1 publication Critical patent/WO2013097175A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/04—Interlocking mechanisms
    • H01H31/06—Interlocking mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating 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
    • H02B11/28—Earthing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • 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
    • H02B11/127—Withdrawal mechanism
    • H02B11/133—Withdrawal mechanism with interlock

Definitions

  • the invention relates to the technical field of electric power products, particularly relates to an interlock device to be applied among a cable door, a rear door and an earthing switch on an air insulated switchgear.
  • the device is particularly suitable for a high voltage switchgear with a ST1 -UG earthing switch.
  • an operation shaft 111 is rotated to drive a pressure piece 114 sleeved on the operation shaft 111 to rotate, a pressure shaft 115 is driven to move downwards to push a push rod 120 to move downwards, a rotation piece 122 is rotated to drive a tongue piece 118 to move leftwards, and the tongue piece 118 cannot be inserted into a lower slide piece 116 capable of moving up and down, so that the cable door 117 can be opened;
  • the operation shaft 111 is rotated to drive the pressure piece 114 sleeved on the operation shaft 111 to rotate, the pressure shaft 115 on the pressure piece 114 is driven to move away from the push rod 120,the push rod 120 moves upwards under the action of a spring 123, the rotation piece 122 is rotated to drive the tongue piece 118 to move rightwards, the tongue piece 118 is inserted into the lower slide piece 116 capable of moving up and down
  • the mechanical interlock is only available between the cable door and the earthing switch in the conventional air insulated switchgear. There is no mechanical interlock aiming at inter-control among the rear door, the cable door and the earthing switch.
  • the earthing switch can be operated by opening the rear door and the closing the cable door, so that both the operator and the switchgear are vulnerable to safety hazards.
  • the mechanical interlock between the rear door and the earthing switch is particularly important.
  • the present invention provides a reliable mechanical interlock device, which ensures that the cable door and the rear door of the switchgear cannot be opened when the earthing switch is switched off, so that the operator can be prevented from entering a live interval by mistake.
  • the mechanical interlock device can ensure that the earthing switch can only be operated when the cable door and the rear door of the switchgear are both closed, so that the personal safety of the operator can be ensured.
  • a mechanical interlock device among a cable door, a rear door and an earthing switch comprises a rear door locking device for locking the rear door of an air insulated switchgear, a rear shaft space-providing component for providing a space-providing space to a rear outer shaft, an intermediate force transfer device for transferring the acting force of rear door closure to an unlock pin, and an unlock pin control device for controlling the locking and unlocking of the unlock pin.
  • the rear door locking device of the mechanical interlock device comprises a rear door lock hook positioned on the rear outer shaft and a rear door lock groove positioned on the rear door, the rear door lock hook and the rear door lock groove can interact to lock the rear door.
  • the rear shaft space-providing component of the mechanical interlock device is a C-shaped component which is used for providing space to the rear outer shaft when the earthing switch is switched off.
  • the rear shaft space-providing component can also be a C-shaped component.
  • the intermediate force transfer device of the mechanical interlock device comprises the rear outer shaft and a rear inner shaft, the rear outer shaft is so installed and arranged that the rear outer shaft can rotate with an operation shaft, a pin is fixed on the rear inner shaft and used for limiting or permitting the insertion of the operation shaft.
  • the rear outer shaft is so installed and arranged that the rear outer shaft can rotate with the operation shaft, that is, when the operation shaft is rotated, the rear outer shaft rotates to drive the rear door lock hook on the rear outer shaft to be clamped into the rear door lock groove so as to lock the rear door.
  • the unlock pin control device comprises the unlock pin and a rotation piece, the rotation piece is fixedly connected with the unlock pin and can drive the unlock pin to move between an earthing switch locking position and an earthing switch unlocking position.
  • the intermediate force transfer device further comprises a spring for restoring the rear inner shaft.
  • the intermediate force transfer device further comprises a pressure piece positioned on the operation shaft.
  • the pressure piece is used for controlling whether to lock the cable door through a cable door interlock device.
  • the cable door interlock device comprises a moving pressure shaft, a push rod, a rotation piece and a tongue piece, the moving pressure shaft is in close contact with the push rod and can move downwards to push the push rod to move downwards, one end of the push rod is rotationally and axially connected with one end of the rotation piece, and the other end of the rotation piece is rotationally and axially connected with the tongue piece.
  • a gas insulated switchgear comprises any one of the preceding lock device among the cable door, the rear door and the earthing switch.
  • Figure 1 depicts the interlock between the cable door and the earthing switch in the conventional air insulated switchgear when the earthing switch is switched on;
  • Figure 2 depicts the interlock between the cable door and the earthing switch in the conventional air insulated switchgear when the earthing switch is switched off;
  • Figure 3 depicts the position of the unlock pin in the conventional air insulated switchgear when the cable door is closed;
  • Figure 4 depicts the position of the unlock pin in the conventional air insulated switchgear when the cable door is opened;
  • Figure 5 depicts the general structure of the mechanical interlock device of the present invention among the cable door, the rear door and the earthing switch of the conventional air insulated switchgear;
  • Figure 6 depicts the structural details of the mechanical interlock device of the present invention.
  • Figure 7 depicts the rear door locking device of the mechanical interlock device of the present invention when the earthing switch is switched on;
  • Figure 8 depicts the rear door locking device of the mechanical interlock device of the present invention when the earthing switch is switched off;
  • Figure 9 depicts the rear shaft space-providing component of the mechanical interlock device of the present invention when the earthing switch is switched off;
  • Figure 10 depicts the rear shaft space-providing component of the mechanical interlock device of the present invention when the earthing switch is switched on;
  • Figure 11 depicts how the intermediate force transfer device of the mechanical interlock device of the present invention transfers an acting force to the operation shaft;
  • Figure 12 depicts how the intermediate force transfer device of the mechanical interlock device of the present invention transfers an acting force to the rear door
  • Figure 13 depicts the position of the unlock pin of the present invention when the earthing switch is inoperable
  • Figure 14 depicts the position of the unlock pin of the present invention when the earthing switch is operable
  • Figure 15 is a structure diagram of the unlock pin control device of the mechanical interlock device of the present invention.
  • Figure 16 depicts the rear door locking device of the mechanical interlock device of the present invention when the rear door is opened
  • Figure 17 depicts the intermediate force transfer device of the mechanical interlock device of the present invention when the rear door is opened
  • Figure 18 depicts the unlock pin mechanism of the mechanical interlock device of the present invention when the rear door is opened.
  • the invention provides a reliable mechanical interlock device, which ensures that the cable door and the rear door of the switchgear cannot be opened when the earthing switch is switched off, so that the operator can be prevented from entering a live interval by mistake.
  • the mechanical interlock device can ensure that the earthing switch can only be operated when the cable door and the rear door of the switchgear are both closed, so that the personal safety of the operator can be ensured.
  • Figures 5 and Figure 6 depict the structure of the mechanical interlock device used among the cable door, the rear door and the earthing switch of the conventional air insulated switchgear, wherein Figure 5 depicts the general structure and Figure 6 depicts the structural specifics.
  • the interlock device of the invention includes four main parts, wherein, part I is the rear door locking device 21 , part II is the rear shaft space-providing component 22, part III is the intermediate force transfer device 23, and part IV is the unlock pin control device 24.
  • the rear door locking device 21 is aimed at locking the rear door of the air insulated switchgear;
  • the rear shaft space-providing component 22 is aimed at providing a space-providing space for the rear outer shaft 211 ;
  • the intermediate force transfer device 23 is aimed at transferring the closing action and force of the rear door to the unlock pin 113, and providing a restoration force to the rear inner shaft 212;
  • the unlock pin control device is aimed at controlling the locking and unlocking of the unlock pin 113.
  • the rear door locking device 21 comprises the rear door lock hook 216 on the rear outer shaft 211 and the rear door lock groove 213 on the rear door.
  • the rear door lock hook 216 and the rear door lock groove 213 can interact to lock the rear door.
  • the rear door lock hook 216 is clamped into the rear door lock groove 213, the rear door is locked and cannot be opened; when the rear door lock hook 216 is separated from the rear door lock groove 213, the rear door can be opened.
  • the rear door locking device 21 has two statuses. As shown in Figure 7, when the earthing switch is switched on, the rear door lock hook 216 is separated from the rear door lock groove 213, so that the rear door can be opened.
  • the rear inner shaft 212 also has two positions, that is, a pressure piece 214 push position and a spring 235 restoration position. As shown in Figure 8, when the earthing switch is switched off, the rear door lock hook 216 is clamped into the rear door lock groove 213, so the rear door cannot be opened.
  • the rear shaft space-providing component 22 has two statuses. As shown in Figure 9, when the earthing switch is switched off, the C-shaped component 221 provides a space-providing space to the rear outer shaft 211 to avoid interference; and Figure 10 shows the status of the rear shaft space-providing component when the earthing switch is switched on.
  • the intermediate force transfer device 23 comprises the rear outer shaft 211 and the rear inner shaft 212, wherein, when the operation shaft 111 is rotated, the rear outer shaft 211 can rotate through the sleeve 232 to enable the rear door lock hook 216 on the rear outer shaft to be clamped into the rear door lock groove 213, so the rear door is locked.
  • the pin 231 is fixed on the rear inner shaft 212, and the rear inner shaft 212 is aimed at transferring the opening action of the rear door to enable the pin 231 to be positioned in the earthing switch locking position P1 , thereby limiting the insertion of the operation shaft, that is, stopping the earthing switch from being operated.
  • the push block 233 drives the rod 234 fixedly connected therewith, the rod 234 drives the slide block 241 fixedly connected therewith, the slide block 241 pushes the rotation piece 245 to rotate, and the unlock pin 113 is further driven to be positioned in the earthing switch locking position P1 to prevent the insertion of the operation shaft 111 , thereby preventing the earthing switch from being operated.
  • the intermediate force transfer device 23 has the following two purposes: firstly, as shown in Figure 11 , when operating the earthing switch, the operation shaft 111 controls the on/off of the earthing switch through the sleeve 232, and the intermediate force transfer device 23 transfers the operating force of the operation shaft 111 to the rear outer shaft 211 which rotates to drive the rear door lock hook 216 thereon to be clamped into the rear door lock groove 213, so the rear door is locked; secondly, as shown in Figure 12, the intermediate force transfer device 23 transfers the closing force of the rear door to the unlock pin 113 through the rear inner shaft 212, the pin 231 , the slide block 233 and the rod 234 in sequence. Moreover, the rear inner shaft 212 can be restored to the original position under the action of the spring 235.
  • the intermediate force transfer device 23 further comprises the pressure piece 114 on the operation shaft 111 , and the pressure piece 114 controls the locking or unlocking of the cable door 117 through the cable door interlock device 10.
  • the cable door interlock device 10 comprises the moving pressure shaft 115, the push rod 120, the rotation piece 122 and the tongue piece 118; the moving pressure shaft 115 is in close contact with the push rod 120 and moves downwards to push the push rod 120 to move downwards; and one end of the push rod 120 is rotationally and axially connected with one end of the rotation piece 122, and the other end of the rotation piece 122 is rotationally and axially connected with the tongue piece 118, so that the movement of the push rod 120 is transferred to the tongue piece 118 to control the lower slide piece 116 capable of moving up and down to control the locking or unlocking of the cable door 117.
  • the unlock pin control device 24 comprises the unlock pin 113 and the rotation piece 245, the rotation piece 245 is fixedly connected with the unlock pin 113 and can drive the unlock pin 113 to move between the earthing switch locking position P1 and the earthing switch unlocking position P2.
  • the earthing switch operating handle cannot be inserted, so the earthing switch cannot be operated.
  • the earthing switch operating handle can be inserted, so the earthing switch can be operated.
  • the position of the unlock pin 113 is determined as the unlock piece 112 of the cable door and the rear door force transferred to the slide block 241 jointly control the rotation piece 245 whether to pull out the unlock pin 113.
  • the rear door and the cable door can only be opened when the earthing switch is switched on; and the rear door and the cable door cannot be opened when the earthing switch is switched off, so as to prevent the operator from entering the live interval by mistake.
  • the earthing switch can only be operated when the rear door and the cable door are closed, and the earthing switch cannot be operated when either the rear door or the cable door is opened, so as to ensure the personal safety of the operator.
  • the rear door and the cable door can only be opened when the earthing switch is switched on, and cannot be opened when the earthing switch is switched off.
  • the earthing switch can only be operated when the rear door and the cable door are both closed, and cannot be operated when either the rear door or the cable door is opened.
  • the unlock pin return spring 244 provides power to the slide block bracket 243 and the slide block 241 fixed thereon.
  • the slide block 241 is also pulled by the rod 234 back to the position shown in Figure 18, the slide block 241 moves away from the rotation piece 245, and the unlock pin 113 is restored to the earthing switch locking position P1 as shown in Figure 13, so that the earthing switch operating handle cannot be inserted, and the earthing switch cannot be operated.
  • a gas insulated switchgear comprises an above described lock device among the cable door, the rear door and the earthing switch.
  • the invention ensures not only that the cable door and the rear door of the switchgear cannot be opened when the earthing switch is switched off, but also that the earthing switch can only be operated when both the cable door and the rear door are closed.
  • the invention achieves the mechanical interlock among the rear door, the cable door and the earthing switch, and greatly improves the safety performance of the air insulated switchgear.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Patch Boards (AREA)

Abstract

L'invention concerne un dispositif mécanique entre une porte à câbles, une porte arrière et un commutateur de mise à la terre qui comprend un dispositif de verrouillage de porte arrière (21) pour verrouiller la porte arrière d'un appareillage de commutation isolé hermétiquement ; un composant produisant un espace d'arbre arrière (22) pour produire un espace produisant l'espace pour un arbre extérieur arrière (211) ; un dispositif de transfert de force intermédiaire (23) pour transférer la force d'actionnement d'une fermeture de la porte à une broche de déverrouillage (113) ; et un dispositif de commande de broche de déverrouillage (24) pour commander le verrouillage et le déverrouillage de la broche de déverrouillage (113). Le dispositif de verrouillage de porte arrière (21) comprend un crochet de verrouillage de porte arrière (216) positionné sur l'arbre extérieur arrière (211) et une rainure de verrouillage de porte arrière (213) positionnée sur la porte arrière, le crochet de verrouillage de porte arrière (216) et la rainure de verrouillage de porte arrière (213) peuvent interagir pour verrouiller la porte arrière. Le composant produisant un espace d'arbre arrière (22) est un composant en forme de C (22) qui est utilisé pour produire un espace pour l'arbre extérieur arrière (211) lorsque le commutateur de mise à la terre est déconnecté. Le dispositif de transfert de force intermédiaire (23) comprend l'arbre extérieur arrière (211) et un arbre intérieur arrière (212), l'arbre extérieur arrière (211) est installé et disposé de telle sorte que l'arbre extérieur arrière peut pivoter avec un arbre d'actionnement (111), une broche (231) est fixée à l'arbre intérieur arrière (212) et utilisée pour limiter ou permettre l'insertion de l'arbre d'actionnement (111). L'invention garantit non seulement que la porte à câbles et la porte arrière de l'appareillage de commutation ne peuvent pas être ouvertes lorsque le commutateur de mise à la terre est déconnecté, mais aussi que le commutateur de mise à la terre peut seulement être manœuvré lorsque la porte à câbles et la porte arrière sont toutes deux fermées.
PCT/CN2011/085018 2011-12-30 2011-12-30 Dispositif de verrouillage mutuel mécanique entre une porte à câbles, une porte arrière et un commutateur de mise à la terre Ceased WO2013097175A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201180075891.1A CN104025230B (zh) 2011-12-30 2011-12-30 电缆室门、后门和接地开关之间的机械联锁装置
PCT/CN2011/085018 WO2013097175A1 (fr) 2011-12-30 2011-12-30 Dispositif de verrouillage mutuel mécanique entre une porte à câbles, une porte arrière et un commutateur de mise à la terre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/085018 WO2013097175A1 (fr) 2011-12-30 2011-12-30 Dispositif de verrouillage mutuel mécanique entre une porte à câbles, une porte arrière et un commutateur de mise à la terre

Publications (1)

Publication Number Publication Date
WO2013097175A1 true WO2013097175A1 (fr) 2013-07-04

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Family Applications (1)

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PCT/CN2011/085018 Ceased WO2013097175A1 (fr) 2011-12-30 2011-12-30 Dispositif de verrouillage mutuel mécanique entre une porte à câbles, une porte arrière et un commutateur de mise à la terre

Country Status (2)

Country Link
CN (1) CN104025230B (fr)
WO (1) WO2013097175A1 (fr)

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CN103474269A (zh) * 2013-09-06 2013-12-25 吉林省电力有限公司长春供电公司 10千伏高压电能计量柜防误开闭锁装置
CN103956282A (zh) * 2014-04-02 2014-07-30 常熟永明电气有限公司 带翻排柜的fn12负荷开关环网柜机械联锁
EP2863498A1 (fr) * 2013-10-16 2015-04-22 LSIS Co., Ltd. Dispositif de verrouillage de porte pour compartiment transformateur de disjoncteur à vide
CN105575695A (zh) * 2014-10-08 2016-05-11 向荣集团有限公司 开关柜伞齿机械联锁装配
CN107293427A (zh) * 2017-08-09 2017-10-24 华仪电气股份有限公司 一种接地开关与前后门的联锁装置
CN107947002A (zh) * 2017-11-13 2018-04-20 上海基胜能源股份有限公司 一种新型开关柜
EP3322052A1 (fr) * 2016-11-14 2018-05-16 Schneider Electric Industries SAS Selecteur de fonctionnement d'un sectionneur de mise a la terre
CN108565764A (zh) * 2018-06-19 2018-09-21 青岛特锐德电气股份有限公司 五防联锁及绝缘环网柜
CN108847605A (zh) * 2018-09-06 2018-11-20 华仪电气股份有限公司 一种五防联锁装置及具有其的手车柜
CN110444419A (zh) * 2018-05-04 2019-11-12 伊顿电力设备有限公司 联锁装置和具有该联锁装置的开关柜
CN111415831A (zh) * 2020-03-14 2020-07-14 广东正超电气有限公司 开关柜接地开关与电缆室门机械闭锁控制机构
CN111884118A (zh) * 2020-07-02 2020-11-03 宁夏力成电气集团有限公司 一种铠装移开式金属封闭开关设备电缆室门连锁机构
CN112185745A (zh) * 2019-07-04 2021-01-05 施耐德电器工业公司 用于开关柜的接地开关及开关柜
CN112509835A (zh) * 2020-09-25 2021-03-16 河南平高通用电气有限公司 开关柜中接地开关与前下门的联锁装置及开关柜
CN112713044A (zh) * 2021-01-05 2021-04-27 安徽中电兴发与鑫龙科技股份有限公司 金属铠装移开式高压开关柜接地刀的安全联锁装置
CN112713045A (zh) * 2021-01-05 2021-04-27 安徽中电兴发与鑫龙科技股份有限公司 金属铠装移开式高压开关柜接地系统综合联锁装置
CN113078020A (zh) * 2021-05-18 2021-07-06 上海广电电气(集团)股份有限公司 一种伞齿轮操作的后柜联锁装置
CN114050070A (zh) * 2021-10-13 2022-02-15 许继集团有限公司 一种高压开关柜电缆室门联锁装置
CN115021139A (zh) * 2022-06-27 2022-09-06 山东泰开成套电器有限公司 一种新型35kv铠装金属交流开关设备后门联锁机构
CN108376622B (zh) * 2018-04-28 2023-09-15 无锡市新一代电力电器有限公司 侧装开关柜接地开关联锁装置

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CN110993400B (zh) * 2019-11-08 2021-12-17 河南平高通用电气有限公司 一种开关柜及开关柜电动地刀闭锁控制方法
CN110932155A (zh) * 2019-12-19 2020-03-27 上海纳杰电气成套有限公司 一种配金属铠装移开式开关柜接地开关双向电气机械闭锁机构
CN112670118B (zh) * 2020-12-04 2022-09-30 河南平高通用电气有限公司 一种环网柜用接地连锁装置和环网柜
CN115199157A (zh) * 2022-05-31 2022-10-18 新疆特变电工自控设备有限公司 一种互锁联锁、柜门及电力设备

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CN107293427A (zh) * 2017-08-09 2017-10-24 华仪电气股份有限公司 一种接地开关与前后门的联锁装置
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