WO2018090549A1 - 一种超高压电网隔离开关 - Google Patents
一种超高压电网隔离开关 Download PDFInfo
- Publication number
- WO2018090549A1 WO2018090549A1 PCT/CN2017/080206 CN2017080206W WO2018090549A1 WO 2018090549 A1 WO2018090549 A1 WO 2018090549A1 CN 2017080206 W CN2017080206 W CN 2017080206W WO 2018090549 A1 WO2018090549 A1 WO 2018090549A1
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- WO
- WIPO (PCT)
- Prior art keywords
- movable contact
- transmission
- contacts
- pair
- movable
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- 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
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- 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
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
Definitions
- the invention relates to the field of equipment of a converter station/substation of a voltage level of 220 kV and above, and more particularly to an overvoltage grid disconnecting switch.
- Isolation switch (commonly known as "knife gate”), generally refers to the high-voltage isolating switch, that is, the isolating switch with rated voltage above 1kV, usually referred to as the isolating switch, is the most used one of the high-voltage switchgear, its own work
- the principle and structure are relatively simple, but due to the large amount of use and high reliability requirements, the impact on the design, establishment and safe operation of substations and power plants is large.
- the main feature of the isolating switch is that it has no arc extinguishing capability and can only divide and close the circuit without load current.
- the isolating switch is used for voltages at various stages. It is used to change the circuit connection or to isolate the line or equipment from the power supply.
- GIS products rely on their own structure, small footprint, low operating failure rate, light weight, maintenance-free and other advantages have been more and more applications.
- the busbar is operated to perform power failure treatment to avoid personal injury caused by the isolation and breakdown of the disconnection during the docking installation, and at the same time prevent the occurrence of equipment safety accidents caused by the reverse superposition of overvoltage at both ends of the isolation fracture at the junction test.
- coordinating the power outage of the substation bus line means delays in the progress of the project, waste of manpower and material resources, and direct or indirect economic losses caused by power outages.
- the single-disconnector switch module (DS: Disconnector Switch) used in traditional GIS will not be suitable for the needs of today's industry.
- An ultra-high voltage power network isolating switch comprises a casing, a double-fracture switch device and a driving mechanism, wherein the casing is provided with n closed cavities connected in sequence, each of which is provided with a set of double-fracture switch devices and a set of drives
- the double-break switch device comprises a movable contact seat, a pair of moving contacts and a pair of static contacts; the movable contact seat is arranged in the middle of the cavity; a pair of static contacts are respectively arranged on opposite sides of the movable contact seat a pair of moving contacts are disposed inside the movable contact seat and can protrude from the opposite direction, and the movable contact seat is in contact with the corresponding static contact, and the pair of moving contacts are synchronously reciprocating linear motion through the driving mechanism, and static
- the contacts are simultaneously contacted or separated at the same time; the pair of movable contacts are electrically connected to each other; the double-break switch device in each cavity is synchronously closed or opened by the drive mechanism.
- the movable contact base comprises a movable contact seat body and a plurality of spring contacts; the movable contact seat body is internally provided with an inner cavity, and the opposite sides of the movable contact seat body are provided with a guiding hole communicating with the inner cavity, The inner wall of the guiding hole cooperates with the outer circumference of the movable contact, and the inner wall of the guiding hole is provided with a plurality of annular grooves arranged axially for mounting the spring contacts, and each annular groove is correspondingly mounted with a spring contact; the inner cavity and two The guiding holes form an accommodating space for accommodating a pair of moving contacts.
- the double-side isolation fracture opening and closing can be realized simultaneously by the ultra-high voltage power grid isolating switch.
- the grounding knife gate mounted on the outer casing and the static side contact seat mounted on the surface of the movable contact seat and the grounding knife gate are further included.
- the double-break switch device and the grounding switch are controlled by two operating mechanisms respectively. This design is beneficial to optimize and simplify the timing of the knife gate operation and avoid misoperation.
- an axial arrangement and a driving machine are arranged at one end of the movable contact away from the static contact Fit the rack.
- the moving contact is a cylinder, and an L-shaped slit is provided in a radial direction on a side facing away from the static contact, and the rack is flat on a radial plane on the L-shaped slit, and the rack drive direction It is consistent with the axial direction of the moving contact.
- the driving mechanism comprises an insulating transmission rod, a transmission gear, a transmission shaft and a transmission insert;
- the transmission shaft is a spline shaft; and the shaft position of the transmission insert is provided with a spline blind matching with the outer circumference of the spline shaft a hole;
- a shaft center of the transmission gear is provided with a spline through hole that cooperates with an outer circumference of the spline shaft, and an outer circumference of the transmission gear is an external gear portion that cooperates with the rack; both ends of the insulation transmission rod are coaxially fixed and a transmission is embedded.
- the spline blind hole of the transmission insert is facing outward; the transmission gear is disposed inside the movable contact seat and the external gear portion cooperates with the rack of the pair of moving contacts; the transmission shaft passes through the spline through hole of the transmission gear, and the transmission One end of the shaft is connected to the drive insert at one end of the insulated transmission rod, and the other end is connected to the drive insert at one end of the insulating drive rod of the other set of drive mechanisms.
- the double-break switch device is stable and reliable through a simple and compact mechanical linkage structure.
- the insulating transmission rod is made of epoxy resin.
- the transmission gear is made of 40Cr.
- the movable contact seat and the static contact are both mounted to the housing through the basin insulator.
- the material of the movable contact seat is cast aluminum ZL101A-T6.
- the super-high voltage power grid isolating switch adopts three-phase linkage mechanical transmission structure, and the transmission is stable and reliable.
- the built-in transmission structure design without exposed connecting rod enhances the weather resistance of key components of the product, reduces the transmission link, and improves the transmission efficiency of the separation and operation of the isolated knife gate.
- FIG. 1 is a perspective view of an ultra-high voltage power network isolation switch according to the present invention.
- FIG. 2 is a front cross-sectional view of an ultra-high voltage power network disconnecting switch of the present invention.
- Fig. 3 is a partially enlarged schematic view showing the area A of Fig. 2;
- FIG. 4 is a top cross-sectional view of an ultra-high voltage power network disconnecting switch of the present invention.
- Fig. 5 is a partially enlarged schematic view showing a region B of Fig. 4;
- an ultra-high voltage power network isolating switch comprises a casing 1, a double-fracture switch device and a driving mechanism 2.
- the casing 1 is provided with three sealed chambers 3 connected in sequence, each cavity.
- the body 3 is provided with a set of double-break switch devices and a set of drive mechanisms 2;
- the double-break switch device comprises a movable contact seat 4, a pair of movable contacts 5 and a pair of static contacts 6;
- the movable contact seat 4 is arranged at a middle portion of the cavity 3;
- a pair of static contacts 6 are respectively disposed at opposite sides of the movable contact base 4;
- a pair of movable contacts 5 are disposed inside the movable contact base 4 and can protrude from the opposite direction to the movable contact base 4 and
- Corresponding static contact 6 is in contact with each other, and the pair of movable contacts 5 are synchronously reciprocating linear motion by the driving mechanism 2, and simultaneously or simultaneously separated from the static contact 6;
- the ultra-high voltage power grid isolating switch further includes a grounding knife gate 7 mounted on the housing 1 and a static side contact seat 8 mounted on the surface of the movable contact housing 4 and mating with the grounding knife gate 7.
- An end of the movable contact 5 facing away from the stationary contact 6 is provided with an axially arranged rack 9 that cooperates with the drive mechanism 2.
- the movable contact 5 is a cylinder, and an L-shaped slit 10 is provided in a radial direction on a side facing away from the static contact 6, and the rack 9 is flat on a radial plane on the L-shaped slit 10, and the rack 9 is driven in the direction It coincides with the axial direction of the movable contact 5.
- the driving mechanism 2 includes an insulating transmission rod 11, a transmission gear 12, a transmission shaft 13, and a transmission insert 14; the transmission shaft 13 is a spline shaft; and the shaft position of the transmission insert 14 is provided with a spline that cooperates with the outer circumference of the transmission shaft 13.
- the blind hole 15; the axial position of the transmission gear 12 is provided with a spline through hole 16 that cooperates with the outer circumference of the transmission shaft 13, the outer circumference of the transmission gear 12 is an external gear portion 17 that cooperates with the rack 9, and the two of the insulating transmission rod 11
- a transmission insert 14 is coaxially fixed to the end, and the spline blind hole 15 of the transmission insert 14 faces outward;
- the transmission gear 12 is disposed inside the movable contact seat 4 and the outer gear portion 17 and the pair of movable contacts 5 are provided with racks 9 mating;
- the transmission shaft 13 passes through the spline through hole 16 of the transmission gear 12, one end of the transmission shaft 13 is connected to the transmission insert 14 at one end of the insulating transmission rod 11, and the other end is connected to the end of the insulating transmission rod 11 of the other group of driving mechanisms 2.
- the drive insert 14 is connected.
- the material of the insulating transmission rod 11 is epoxy resin.
- the material of the transmission gear 12 is 40C
- the movable contact base 4 includes a movable contact seat body 19 and a plurality of spring contacts 18; the movable contact base body 19 is provided with an inner cavity 20, and a communication is provided on opposite sides of the movable contact seat body 19
- the guide hole 21 of the inner cavity 20, the inner wall of the guide hole 21 is engaged with the outer circumference of the movable contact 5, and the inner wall of the guide hole 21 is provided with a plurality of annular grooves 22 axially uniformly arranged for mounting the spring contacts 18, each The annular groove 22 is correspondingly mounted with a spring contact 18; the inner cavity 20 and the two guiding holes 21 form an accommodating space for accommodating the pair of movable contacts 5.
- the two movable contacts 5 respectively insert one end with the rack 9 into the corresponding guiding hole 21, and the rack 9 of the two moving contacts 5 respectively mesh with the external gear portion 17 of the transmission gear 12, and the movable contact 5 faces away from the tooth
- the outer circumference of one end of the strip 9 is engaged with the inner wall of the guide hole 21 and is in contact with the spring contact 18, and the movable contact 5 is driven by the transmission gear 12 to reciprocate linearly in the axial direction of the guide hole 21.
- Both the movable contact base 4 and the stationary contact 6 are mounted to the housing 1 through the basin insulator 23.
- the material of the movable contact base 4 is cast aluminum ZL101A-T6.
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims (9)
- 一种超高压电网隔离开关,其特征在于:包括壳体、双断口开关装置、驱动机构,所述的壳体内设有n个依次连通的密闭的腔体,每个所述的腔体内均设有一组双断口开关装置、一组驱动机构;所述的双断口开关装置包括动触头座、一对动触头和一对静触头;所述的动触头座设在所述的腔体的中部;所述的一对静触头分别设在所述的动触头座的相对两旁;所述的一对动触头设在所述的动触头座内部且能从相对方向伸出动触头座与对应的静触头接触配合,所述的一对动触头通过驱动机构带动作同步的往复直线运动,与静触头同时接触或同时分离;所述的一对动触头相互导通;所述的每个腔体内的双断口开关装置通过驱动机构实现同步合闸或分闸;所述的动触头座包括动触头座本体和数个弹簧触头;所述的动触头座本体的内部设有内腔,在动触头座本体的相对两侧均设有一个连通内腔的导向孔,所述的导向孔的内壁与所述的动触头的外周配合,在导向孔的内壁设有多个轴向均匀排列用于安装弹簧触头的环形槽,每个环形槽对应安装一个弹簧触头;所述的内腔与两个导向孔形成容置一对动触头的容置空间。
- 根据权利要求1所述的一种超高压电网隔离开关,其特征在于:还包括安装在外壳上的接地刀闸和安装在动触头座表面与接地刀闸配合的静侧触头座。
- 根据权利要求1所述的一种超高压电网隔离开关,其特征在于:在所述的动触头背离静触头的一端设有轴向布置的与所述的驱动机构配合的齿条。
- 根据权利要求3所述的一种超高压电网隔离开关,其特征在于:所述的动触头为圆柱体,在背离静触头的一侧在径向方向设有L形切口,所述的齿条平设在L形切口上的径向平面上,齿条传动方向与动触头的轴向一致。
- 根据权利要求3所述的一种超高压电网隔离开关,其特征在于:所述的驱动机构包括绝缘传动杆、传动齿轮、传动轴、传动嵌入件;所述的传动轴为花键轴;所述的传动嵌入件的轴心位置设有与花键轴的外周配合的花键盲孔;所述的传动齿轮的轴心位置设有与花键轴的外周配合的花键通孔,传动齿轮的外周为与所述的齿条配合的外齿轮部;所述的绝缘传动杆的两端均同轴固定一个传动嵌入件,所述的传动嵌入件的花键盲孔朝外;所述的传动齿轮设在所述的动触头座 内部且所述的外齿轮部与一对动触头的齿条配合;所述的传动轴穿过传动齿轮的花键通孔,所述的传动轴一端与绝缘传动杆一端的传动嵌入件连接,另一端与另一组驱动机构的绝缘传动杆一端的传动嵌入件连接。
- 根据权利要求5所述的一种超高压电网隔离开关,其特征在于:所述的绝缘传动杆的材质为环氧树脂。
- 根据权利要求5所述的一种超高压电网隔离开关,其特征在于:所述的传动齿轮的材质为40Cr。
- 根据权利要求1至7任一项所述的一种超高压电网隔离开关,其特征在于:所述的动触头座与静触头均通过盆式绝缘子与壳体安装在一起。
- 根据权利要求8所述的一种超高压电网隔离开关,其特征在于:所述的动触头座的材质为铸铝ZL101A-T6。
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JP2018600158U JP3221535U (ja) | 2016-11-17 | 2017-04-12 | 超高圧電気網分離スイッチ |
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CN201621232690.4U CN206331958U (zh) | 2016-11-17 | 2016-11-17 | 双断口隔离开关模块 |
CN201621232690.4 | 2016-11-17 |
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PCT/CN2017/080206 WO2018090549A1 (zh) | 2016-11-17 | 2017-04-12 | 一种超高压电网隔离开关 |
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Cited By (9)
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CN108648949A (zh) * | 2018-08-16 | 2018-10-12 | 广东电网有限责任公司 | 隔离开关驱动结构及隔离开关 |
CN109192564A (zh) * | 2018-11-14 | 2019-01-11 | 山东电工电气集团智能电气有限公司 | 条形无励磁分接开关及变压器 |
CN109637857A (zh) * | 2018-11-05 | 2019-04-16 | 海鸿电气有限公司 | 一种高效的盘型无励磁分接开关 |
CN109786169A (zh) * | 2018-12-28 | 2019-05-21 | 国家电网公司 | 新型配电网隔离刀闸 |
CN111122662A (zh) * | 2020-01-17 | 2020-05-08 | 福州大学 | 一种基于直线电机的触头材料模拟试验装置及其工作方法 |
CN112599375A (zh) * | 2020-11-13 | 2021-04-02 | 许继(厦门)智能电力设备股份有限公司 | 一种三工位开关的对正工装及装配方法 |
CN113140422A (zh) * | 2020-01-17 | 2021-07-20 | 正泰电气股份有限公司 | 三位置开关 |
CN114464493A (zh) * | 2022-01-20 | 2022-05-10 | 华东交通大学 | 一种接触网隔离开关故障诊断装置 |
CN116884799A (zh) * | 2023-07-17 | 2023-10-13 | 美仪电气有限公司 | 一种带有安全防护装置的柱上开关 |
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CN106373821A (zh) * | 2016-11-17 | 2017-02-01 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 双断口隔离开关模块 |
CN110364957B (zh) * | 2019-07-17 | 2021-01-22 | 西安西电开关电气有限公司 | 一种gis设备的扩建模块 |
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CN108648949A (zh) * | 2018-08-16 | 2018-10-12 | 广东电网有限责任公司 | 隔离开关驱动结构及隔离开关 |
CN109637857A (zh) * | 2018-11-05 | 2019-04-16 | 海鸿电气有限公司 | 一种高效的盘型无励磁分接开关 |
CN109637857B (zh) * | 2018-11-05 | 2023-08-11 | 海鸿电气有限公司 | 一种高效的盘型无励磁分接开关 |
CN109192564A (zh) * | 2018-11-14 | 2019-01-11 | 山东电工电气集团智能电气有限公司 | 条形无励磁分接开关及变压器 |
CN109192564B (zh) * | 2018-11-14 | 2024-04-30 | 山东电工电气集团智能电气有限公司 | 条形无励磁分接开关及变压器 |
CN109786169B (zh) * | 2018-12-28 | 2024-03-01 | 国家电网公司 | 配电网隔离刀闸 |
CN109786169A (zh) * | 2018-12-28 | 2019-05-21 | 国家电网公司 | 新型配电网隔离刀闸 |
CN111122662A (zh) * | 2020-01-17 | 2020-05-08 | 福州大学 | 一种基于直线电机的触头材料模拟试验装置及其工作方法 |
CN111122662B (zh) * | 2020-01-17 | 2024-06-04 | 福州大学 | 一种基于直线电机的触头材料模拟试验装置及其工作方法 |
CN113140422A (zh) * | 2020-01-17 | 2021-07-20 | 正泰电气股份有限公司 | 三位置开关 |
CN112599375B (zh) * | 2020-11-13 | 2023-06-20 | 许继(厦门)智能电力设备股份有限公司 | 一种三工位开关的对正工装及装配方法 |
CN112599375A (zh) * | 2020-11-13 | 2021-04-02 | 许继(厦门)智能电力设备股份有限公司 | 一种三工位开关的对正工装及装配方法 |
CN114464493B (zh) * | 2022-01-20 | 2023-09-15 | 华东交通大学 | 一种接触网隔离开关故障诊断装置 |
CN114464493A (zh) * | 2022-01-20 | 2022-05-10 | 华东交通大学 | 一种接触网隔离开关故障诊断装置 |
CN116884799A (zh) * | 2023-07-17 | 2023-10-13 | 美仪电气有限公司 | 一种带有安全防护装置的柱上开关 |
CN116884799B (zh) * | 2023-07-17 | 2024-01-02 | 美仪电气有限公司 | 一种带有安全防护装置的柱上开关 |
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JP3221535U (ja) | 2019-06-06 |
CN206331958U (zh) | 2017-07-14 |
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