WO2019006814A1 - Functional module for implementing extension of gis busbar with no power outage and extension method - Google Patents

Functional module for implementing extension of gis busbar with no power outage and extension method Download PDF

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Publication number
WO2019006814A1
WO2019006814A1 PCT/CN2017/096381 CN2017096381W WO2019006814A1 WO 2019006814 A1 WO2019006814 A1 WO 2019006814A1 CN 2017096381 W CN2017096381 W CN 2017096381W WO 2019006814 A1 WO2019006814 A1 WO 2019006814A1
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Prior art keywords
contact
gis
movable contact
double
switch device
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PCT/CN2017/096381
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French (fr)
Chinese (zh)
Inventor
张长虹
庞准
王海军
李万民
李帅
李洁珊
Original Assignee
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
上海思源高压开关有限公司
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Application filed by 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, 上海思源高压开关有限公司 filed Critical 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
Priority to JP2017568336A priority Critical patent/JP6634457B2/en
Publication of WO2019006814A1 publication Critical patent/WO2019006814A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • 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
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing

Definitions

  • the invention relates to the field of equipment of a converter station/substation of a voltage level of 220 kV and above, and particularly relates to a function module and an expansion method for a GIS non-blackout expansion bus.
  • 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 first phase of the completed GIS bus has no special expansion interface module, only to reserve the corresponding basis for the second phase expansion bus installation, but the second phase bus expansion project.
  • the original running busbar should be powered off, and the SF6 gas in the butt section busbar air chamber should be recovered before it can be docked.
  • the power frequency withstand voltage test should be carried out. Because the new and old busbar sections have no special fracture design, the old GIS busbar also needs to withstand the power frequency test voltage. Its insulation has a cumulative damage effect.
  • 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 cumulative damage of the insulation due to the repeated evaluation of the old busbars subjected to the power frequency withstand voltage test, the cumulative damage of the insulation The potential risks of the effect on its operation are also incalculable.
  • the object of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide a functional module and an expansion method for a GIS non-power-off expansion busbar that can expand the busbar end without power failure.
  • the GIS does not power off and expand the function module for the busbar, including the casing, the double-break switch device, the drive device, and the temporary grounding switch device;
  • the casing is a columnar body, and the conduction direction is at both ends of the casing;
  • Three sets of double-break switch devices are installed in the casing, and each set of double-break switch devices is matched with a set of driving devices and a set of temporary grounding switch devices;
  • the inner cavity of the casing is air-tight and is formed into a first air chamber;
  • the three sets of double-break switch devices are not in contact with each other and are disposed in parallel with each other in the conduction direction in the first air chamber for realizing synchronous closing or opening of the two ends of the housing; a first break and a second break are provided, and the double-break switch device can be turned on by the driving device to simultaneously turn on the first break and the second break to make the two ends of the casing conductive;
  • the temporary ground switch The device is mounted on the housing
  • the double-fracture switch device includes a center conductor, a moving contact, a static contact, and a transmission mechanism;
  • the center conductor is a columnar body, and the axial center position thereof is provided with a central passage in the axial direction, The outer peripheral position of the center conductor is provided with a side passage communicating with the central passage; and the first spring finger for holding the movable contact and conducting the center conductor and the movable contact is provided on the side wall of both ends of the central passage
  • the outer circumference of the moving contact is in a clearance fit with the central passage, and an axially threaded hole is provided at one end of the movable contact;
  • the axial position of the static contact is provided with a contact hole of the movable contact, wherein a second spring finger for clamping the movable contact and allowing the static contact and the movable contact to be connected is disposed on an inner wall of the contact hole;
  • the transmission mechanism includes Drive screw, first bevel gear, second bevel gear, insulating rod;
  • the structure is mainly used for the extension of the end of the three-phase common box busbar, and is a three-phase common box structure, and the transmission mainly adopts the transmission mode of the screw rod and the bevel gear.
  • the support insulator is further included, and the support insulator is used to support the center conductor to be mounted inside the casing.
  • the two ends of the casing are basin insulators, and the static contacts are mounted on the basin insulators.
  • the temporary grounding switch device is disposed inside the casing as a swing lever mechanism, and the center conductor is electrically connected to the casing by manually setting the position of the swing lever to realize the grounding operation.
  • the insulating rod is made of epoxy resin.
  • the GIS does not power off and expand the busbar method, and includes the GIS first-phase running bus port connected in sequence, the GIS non-power-off expansion busbar functional module according to any one of claims 1 to 6, the second air chamber and the second air chamber.
  • the grounding knife gate, the third air chamber and the GIS second-stage expansion port installed in the third air chamber, the specific method steps are as follows:
  • the first air chamber is filled with the rated pressure gas; the second gas chamber is reduced to the safe air pressure; the third gas chamber is recovered; the GIS second-stage expansion port is connected to the line, and after the docking is completed, The loop test signal is collected by the grounding knife gate.
  • the pressure test is carried out, and the second gas chamber is filled with the rated pressure gas; the double-break switch device is in the open state, the temporary earthing switch device is in the closing state, and the grounding knife gate is in the open state.
  • GIS non-blackout expansion busbar function module is simple in structure, greatly reducing the default cost of the expansion end, suitable for a wide range of applications.
  • FIG. 1 is a schematic view showing a structure of a casing with a function module of a GIS non-power-off expansion busbar according to the present invention.
  • FIG. 2 is a schematic cross-sectional view showing a functional module for a GIS non-power-off expansion busbar according to the present invention.
  • Figure 3 is a partially enlarged schematic view of the area A of Figure 2.
  • FIG. 4 is a schematic diagram of the principle of the GIS busbar without power failure expansion.
  • the GIS does not power off and expand the function module for the bus bar, including the housing 1, the double-break switch device 2, the drive device 3, the temporary ground switch device 4, and the support insulator 5; a columnar body having a conduction direction at both ends of the casing 1; three sets of double-fracture switches are installed in the casing 1 Device 2, each set of double-break switch device 2 is correspondingly matched with a group of driving devices 3, a group of temporary grounding switch devices 4; the inner cavity of the casing 1 is air-tight and is formed into a first air chamber 6; The double-break switch device 2 is not in contact with each other and is disposed in parallel with each other in the conduction direction in the first air chamber 6 for realizing synchronous closing or opening of the two ends of the housing 1; the double-break switch device The two ends of the housing are provided with a first breaking port 7 and a second breaking port 8.
  • the double-breaking switch device 2 is driven by the driving device 3 to simultaneously open the first breaking port 7 and the second breaking port 8 to make the two housings 1
  • the terminal is electrically connected;
  • the temporary grounding switch device 4 is mounted on the housing 1 for enabling the double-break switch device 2 to perform a grounding operation.
  • the double-break switch device 2 includes a center conductor 9, a movable contact 10, a static contact 11, and a transmission mechanism 12;
  • the center conductor 9 is a columnar body, and the axial center position thereof is provided with a central passage 13 in the axial direction.
  • a side passage 14 communicating with the center passage 13 is provided at an outer circumferential position of the center conductor 9; a side wall at both ends of the center passage 13 is provided with a movable contact 10 for holding the center conductor 9 and the movable contact 10
  • the first spring contact finger 15 is connected; the outer circumference of the movable contact 10 is in a clearance fit with the central passage 13 , and an inner threaded hole 16 is disposed at an axial center of one end of the movable contact 10;
  • the axial center of the stationary contact 11 is provided with a contact hole 17 that cooperates with the movable contact 10, and an inner wall of the contact hole 17 is provided for clamping the movable contact 10 and the static contact 11 a second spring finger 18 that is electrically connected to the movable contact 10;
  • the transmission mechanism 12 includes a drive screw 19, a first bevel gear 20, a second bevel gear 21, and an insulating rod 22; Both ends of the rod 19 are provided with external threaded portions 23 of the internally threaded holes 16
  • the drive screw 19 extends through the central passage 13 into the center conductor 9, the first bevel gear 20 on the drive screw 19 and the side passage 14
  • a movable contact 10 is inserted into each end of the center conductor 9, and the female screw hole 16 of the movable contact 10 is screwed into the external thread portion 23 of the drive screw 19, and the insulating rod 22 is provided.
  • One end of the second bevel gear 21 extends into the side channel 14, the first bevel gear 20 meshes with the second bevel gear 21, and the other end of the insulating rod 22 is connected to the driving device 3;
  • a static contact 11 is disposed on each of the movable contacts 10 on both sides of the internal conduction direction, and the contact hole 17 of the static contact 11 is disposed opposite to the movable contact 10;
  • the driving device 3 drives the transmission
  • the screw 19 is rotated to clamp the two ends of the first spring finger 15 to move the contact 10 for axial reciprocation, and the movable contact 10 is extended.
  • the center conductor 9 can be inserted into the contact hole 17 of the static contact 11 to achieve conduction or disconnection of the static contacts 11 at both ends.
  • the supporting insulator 5 is used to support the
  • the center conductor 9 is mounted inside the casing 1.
  • the two ends of the casing 1 are basin insulators 25, and the static contacts 11 are mounted on the basin insulators 25.
  • the temporary grounding switch device 4 is disposed inside the casing 1 as a swing lever mechanism 26, and the center conductor 9 is electrically connected to the casing 1 by manually setting the position of the swing lever to realize a grounding operation.
  • the insulating rod 22 is made of epoxy resin.
  • the GIS does not power off and expand the bus bar method, including the GIS first-phase running bus port connected in sequence, the GIS non-power-off expansion bus function module, the second air chamber and the installation according to any one of claims 1 to 6.
  • the grounding knife gate on the second air chamber, the third air chamber and the second stage expansion port of the GIS installed in the third air chamber, the specific method steps are as follows:
  • the first gas chamber 6 When the docking is extended, the first gas chamber 6 is filled with the rated pressure gas; the gas in the second gas chamber is reduced to the safe air pressure; the gas in the third gas chamber is recovered; the line is docked to the GIS phase 2 expansion port, and after the docking is completed, the grounding is completed.
  • the knife gate is used for loop test signal acquisition.
  • the pressure test is carried out, and the second gas chamber is filled with the rated pressure gas; the double-break switch device 2 is in the open state, the temporary ground switch device 4 is in the closed state, and the grounding switch is in the open state.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

A functional module for implementing extension of a GIS busbar with no power outage, comprising a housing, double-break switch means, driving means, and temporary grounding switch means. The housing is in a cylindrical shape, and the conduction direction is arranged from one end of the housing to the other end; three groups of the double-break switch means are mounted in the housing, and each group of the double-break switch means is correspondingly equipped with a group of the driving means and a group of the temporary grounding switch means; an inner cavity of the housing is hermetically sealed to form a first air chamber; the three groups of double-break switch means do not contact with each other, are provided in the first air chamber in parallel with the conduction direction, and are used for achieving synchronous switching-on or switching-off between the two ends of the housing; the temporary grounding switch means are mounted on the housing for allowing the double-break switch means to implement a grounding operation. The functional module is simple, safe and reliable and is able to implement abutting installation with no power outage of an originally-running busbar during extension installation of the GIS busbar.

Description

GIS不停电扩建母线用功能模块及扩建方法Functional module and expansion method for GIS without power failure expansion bus 技术领域Technical field
本发明涉及220kV及以上电压等级的换流站/变电站的设备领域，具体涉及GIS不停电扩建母线用功能模块及扩建方法。The invention relates to the field of equipment of a converter station/substation of a voltage level of 220 kV and above, and particularly relates to a function module and an expansion method for a GIS non-blackout expansion bus.
背景技术Background technique
随着电力行业的发展，发电，输电、变电在国民经济中的重要性变得尤其重要，而在目前在各变电站GIS建设过程中，由于项目前期规划等一系列因素影响，部分GIS母线无法在工程施工中一次性安装完毕，因此需要通过二期扩建工程对母线进行扩建。With the development of the power industry, the importance of power generation, transmission and substation in the national economy has become particularly important. However, in the current GIS construction process of various substations, due to a series of factors such as pre-project planning, some GIS busbars cannot The installation is completed once in the construction, so it is necessary to expand the busbar through the second phase expansion project.
由于扩建母线需和原运行母线进行对接以及交接试验，按照现有主流厂家的GIS结构设计，在该过程均需要对原母线分别停电两次，将给变电站设备运行造成巨大的运行风险并带来较大的停电经济损失。Since the expansion of the busbar needs to be docked and handed over to the original busbar, according to the GIS structure design of the existing mainstream manufacturers, it is necessary to power off the original busbar twice in this process, which will bring huge operational risks to the operation of the substation equipment and bring Large power outage economic losses.
为了消除GIS母线扩建时需依赖整体母线停电的弊端，需设计一种新型GIS结构功能模块，既保证母线扩建过程中运行设备不需停电，又能够降低了对接过程中其他气体隔室内SF6气体的处理时间，有效缩短项目扩建时间和降低扩建过程中给原有设备带来的风险，可极大提高工程施工效率，同时避免由于母线停电带来的经济损失。In order to eliminate the disadvantages of relying on the overall busbar power outage when the GIS busbar expansion is completed, it is necessary to design a new GIS structure function module, which not only ensures that the running equipment does not need power failure during the busbar expansion process, but also reduces the SF6 gas in other gas compartments during the docking process. The processing time can effectively shorten the project expansion time and reduce the risks brought to the original equipment during the expansion process, which can greatly improve the engineering construction efficiency and avoid the economic loss caused by the bus power failure.
随着经济的发展GIS产品在市场上依靠自身结构占地面积小，运行故障率低、重量轻、免维护等一系列优势得到越来越多的应用。With the development of the economy, 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.
从目前GIS设备厂家对于二期扩建结构设计来看，一期安装完成的GIS母线并无专门的扩建接口模块，仅仅为二期扩建母线安装预留相应的基础，但是，二期母线扩建工程中存在以下问题：From the current GIS equipment manufacturers for the second phase of the expansion structure design, the first phase of the completed GIS bus has no special expansion interface module, only to reserve the corresponding basis for the second phase expansion bus installation, but the second phase bus expansion project The following problems exist:
1、GIS母线扩建安装前，需将原运行母线停电，回收对接段母线气室的SF6气体，然后方可对接安装。1. Before the GIS busbar is expanded and installed, the original running busbar should be powered off, and the SF6 gas in the butt section busbar air chamber should be recovered before it can be docked.
2、新对接的GIS母线在带电投运前，按照标准要求，应该进行工频耐压试验考核，由于新旧母线段没有专门的断口设计，导致旧GIS母线也需耐受工频试验电压，对其绝缘存在累积破坏效应。 2. Before the new GIS busbar is put into operation, according to the standard requirements, the power frequency withstand voltage test should be carried out. Because the new and old busbar sections have no special fracture design, the old GIS busbar also needs to withstand the power frequency test voltage. Its insulation has a cumulative damage effect.
对于运行单位说，协调变电站母线停电就意味工程进度的延误、人力物力的浪费以及停电带来的直接或间接的经济损失，同时，由于旧母线重复承受工频耐压试验的考核，绝缘累积破坏效应对其运行的潜在风险也是无法估量的。For the operating unit, 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. At the same time, due to the repeated evaluation of the old busbars subjected to the power frequency withstand voltage test, the cumulative damage of the insulation The potential risks of the effect on its operation are also incalculable.
据粗略估算，对于一个500kV变电站/换流站，停电一天的直接经济损失可达数百万元以上，更有一些变电站，由于上下游客户的特殊性，如大型冶炼工厂、重要政府机关部门等，导致协调母线停电的难度极高，严重影响工程的投运时间，间接造成巨大的经济损失。According to rough estimates, for a 500kV substation/conversion station, the direct economic loss of one day of power outage can reach several million yuan or more, and there are some substations, due to the special characteristics of upstream and downstream customers, such as large smelting plants, important government agencies, etc. The difficulty in coordinating the busbar power outage is extremely high, which seriously affects the commissioning time of the project and indirectly causes huge economic losses.
发明内容Summary of the invention
本发明的目的是克服上述现有技术的缺点，提供一种可在不停电的情况下对母线端部进行扩建的GIS不停电扩建母线用功能模块及扩建方法。The object of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide a functional module and an expansion method for a GIS non-power-off expansion busbar that can expand the busbar end without power failure.
本发明是通过以下技术方案来实现的：The present invention is achieved by the following technical solutions:
GIS不停电扩建母线用功能模块，包括壳体、双断口开关装置、驱动装置、临时接地开关装置；所述的壳体为柱状体，在壳体的两端为导通方向；在所述的壳体内安装有三组双断口开关装置，每组双断口开关装置对应配套一组驱动装置、一组临时接地开关装置；所述的壳体内腔形为气密封并成第一气室；所述的三组双断口开关装置互不接触且沿导通方向相互平行地设置在第一气室内用于实现所述的壳体两端的同步合闸或分闸；所述的双断口开关装置的两端设有第一断口、第二断口，所述的双断口开关装置通过驱动装置带动可同时接通第一断口、第二断口使所述壳体的两端实现导通；所述的临时接地开关装置安装在壳体上用于使双断口开关装置实现接地操作。The GIS does not power off and expand the function module for the busbar, including the casing, the double-break switch device, the drive device, and the temporary grounding switch device; the casing is a columnar body, and the conduction direction is at both ends of the casing; Three sets of double-break switch devices are installed in the casing, and each set of double-break switch devices is matched with a set of driving devices and a set of temporary grounding switch devices; the inner cavity of the casing is air-tight and is formed into a first air chamber; The three sets of double-break switch devices are not in contact with each other and are disposed in parallel with each other in the conduction direction in the first air chamber for realizing synchronous closing or opening of the two ends of the housing; a first break and a second break are provided, and the double-break switch device can be turned on by the driving device to simultaneously turn on the first break and the second break to make the two ends of the casing conductive; the temporary ground switch The device is mounted on the housing for grounding the double-fracture switch device.
作为上述方案的改进，所述的双断口开关装置包括中心导体、动触头、静触头、传动机构；所述的中心导体为柱状体，其轴心位置设有轴线方向的中心通道，在中心导体的外周位置设有连通所述的中心通道的侧面通道；在中心通道的两端的侧壁上设有用于夹持动触头且让中心导体与动触头导通的第一弹簧触指；所述的动触头的外周与所述的中心通道为间隙配合，在动触头的一端轴心位置设有内螺纹孔；所述的静触头的轴心位置设有与所述的动触头配合的触头孔，在所述的触头孔的内壁设有用于夹持动触头且让静触头与动触头导通的第二弹簧触指；所述的传动机构包括传动丝杆、第一锥形齿轮、第二锥形齿轮、绝缘杆；所述的传 动丝杆的两端均设有与所述的动触头的内螺纹孔的外螺纹部，其中部为光杆部，所述的第一锥形齿轮同轴安装在光杆部上；所述的第二锥形齿轮同轴安装在所述的绝缘杆的一端；所述的三组中心导体在截面方向呈“品”字形布置在所述的第一气室内；所述的传动丝杆通过中心通道伸入中心导体内部，在传动丝杆上的第一锥形齿轮与所述的侧面通道位置关系对应，在中心导体的两端分别***一个动触头且动触头的内螺纹孔旋入所述的传动丝杆的外螺纹部，所述的绝缘杆设有第二锥形齿轮的一端伸入侧面通道，第一锥形齿轮与第二锥形齿轮啮合，所述的绝缘杆另一端与所述的驱动装置连接；在壳体内部导通方向的两侧上对应每个动触头设置一个静触头，所述的静触头的触头孔正对动触头设置；所述的驱动装置带动传动丝杆转动使两端夹持在第一弹簧触指上动触头进行轴向的往复运动，动触头伸出中心导体后可***静触头的触头孔中，实现两端静触头的导通或断绝。As a modification of the above solution, the double-fracture switch device includes a center conductor, a moving contact, a static contact, and a transmission mechanism; the center conductor is a columnar body, and the axial center position thereof is provided with a central passage in the axial direction, The outer peripheral position of the center conductor is provided with a side passage communicating with the central passage; and the first spring finger for holding the movable contact and conducting the center conductor and the movable contact is provided on the side wall of both ends of the central passage The outer circumference of the moving contact is in a clearance fit with the central passage, and an axially threaded hole is provided at one end of the movable contact; the axial position of the static contact is provided with a contact hole of the movable contact, wherein a second spring finger for clamping the movable contact and allowing the static contact and the movable contact to be connected is disposed on an inner wall of the contact hole; the transmission mechanism includes Drive screw, first bevel gear, second bevel gear, insulating rod; The two ends of the moving rod are provided with external threaded portions of the internal threaded holes of the moving contact, the middle portion of which is a polished rod portion, and the first tapered gear is coaxially mounted on the polished rod portion; a second bevel gear coaxially mounted at one end of the insulating rod; the three sets of center conductors are arranged in a "shape" in the cross-sectional direction in the first gas chamber; the transmission screw passes through the center The passage extends into the center conductor, and the first bevel gear on the drive screw corresponds to the positional relationship of the side passages, and a movable contact is respectively inserted at both ends of the center conductor and the internal threaded hole of the movable contact is screwed into In the external thread portion of the driving screw, the insulating rod is provided with one end of the second bevel gear extending into the side channel, the first bevel gear meshes with the second bevel gear, and the other end of the insulating rod Connected to the driving device; a static contact is disposed on each of the movable contacts on both sides of the internal conduction direction of the housing, and the contact hole of the static contact is disposed opposite to the movable contact; The driving device drives the driving screw to rotate so that both ends are clamped at the first spring contact After the movable contact reciprocating axial movement, the movable contact may be inserted into the contact center conductor projecting fixed contact hole, the conduction is cut off at both ends or the stationary contact.
该结构主要用于三相共箱母线端部扩建，为三相共箱结构，传动主要采用丝杆和锥齿轮的传动方式。The structure is mainly used for the extension of the end of the three-phase common box busbar, and is a three-phase common box structure, and the transmission mainly adopts the transmission mode of the screw rod and the bevel gear.
作为上述方案的改进，还包括支撑绝缘子，所述的支撑绝缘子用于支撑所述的中心导体安装在壳体的内部。As a modification of the above aspect, the support insulator is further included, and the support insulator is used to support the center conductor to be mounted inside the casing.
作为上述方案的改进，所述的壳体两端为盆式绝缘子，所述的静触头安装在盆式绝缘子。As a modification of the above solution, the two ends of the casing are basin insulators, and the static contacts are mounted on the basin insulators.
作为上述方案的改进，所述的临时接地开关装置为一摆杆机构设置在壳体内部，通过手动设置摆杆的位置使所述的中心导体与壳体导通实现接地操作。As a modification of the above solution, the temporary grounding switch device is disposed inside the casing as a swing lever mechanism, and the center conductor is electrically connected to the casing by manually setting the position of the swing lever to realize the grounding operation.
作为上述方案的改进，所述的绝缘杆材质为环氧树脂。As an improvement of the above solution, the insulating rod is made of epoxy resin.
GIS不停电扩建母线方法，包括依次连接的GIS一期运行母线端口、权利要求1至6任一项所述的GIS不停电扩建母线用功能模块、第二气室及安装在第二气室上的接地刀闸、第三气室及设置在第三气室的GIS二期扩建端口，具体的方法步骤如下：The GIS does not power off and expand the busbar method, and includes the GIS first-phase running bus port connected in sequence, the GIS non-power-off expansion busbar functional module according to any one of claims 1 to 6, the second air chamber and the second air chamber. The grounding knife gate, the third air chamber and the GIS second-stage expansion port installed in the third air chamber, the specific method steps are as follows:
S1.母线正常运行时，第一气室、第二气室、第三气室内充入额定压力气体；双断口开关装置处于分闸状态，临时接地开关装置处于分闸状态；接地刀闸处于合闸状态。S1. When the busbar is in normal operation, the first air chamber, the second air chamber and the third air chamber are filled with the rated pressure gas; the double-break switch device is in the open state, the temporary grounding switch device is in the open state; the grounding switch is in the joint state Brake status.
S2.扩建对接时，第一气室充入额定压力气体；第二气室内气体降低为安全气压；第三气室内气体回收；对GIS二期扩建端口进行线路对接，对接完成后， 通过接地刀闸来进行回路试验信号采集。S2. When the docking is extended, the first air chamber is filled with the rated pressure gas; the second gas chamber is reduced to the safe air pressure; the third gas chamber is recovered; the GIS second-stage expansion port is connected to the line, and after the docking is completed, The loop test signal is collected by the grounding knife gate.
S3.对扩建后进行耐压试验，第二气室内充入额定压力气体；确保双断口开关装置处于分闸状态，临时接地开关装置处于合闸状态，接地刀闸处于分闸状态。S3. After the expansion, the pressure test is carried out, and the second gas chamber is filled with the rated pressure gas; the double-break switch device is in the open state, the temporary earthing switch device is in the closing state, and the grounding knife gate is in the open state.
S4.耐压试验完成后，将双断口开关装置合闸，临时接地开关装置处于分闸状态，接地刀闸处于分闸状态；扩建完成并正常投入使用。S4. After the pressure test is completed, the double-break switch device is closed, the temporary grounding switch device is in the open state, and the grounding knife gate is in the open state; the expansion is completed and put into normal use.
本发明具有以下有益效果：The invention has the following beneficial effects:
1、提供一种简单安全可靠的GIS不停电扩建母线用功能模块，可在GIS母线扩建安装时，不需将原运行母线停电即可进行对接安装。1. Provide a simple and safe GIS function module for uninterrupted expansion of the busbar. When the GIS busbar is expanded and installed, it is not necessary to power off the original busbar for docking installation.
2、GIS不停电扩建母线用功能模块结构简单，大幅度降低扩建端预设成本，适合大范围推广应用。2, GIS non-blackout expansion busbar function module is simple in structure, greatly reducing the default cost of the expansion end, suitable for a wide range of applications.
3、简化扩建安装的工序，提高工作效率，大大减低扩建成本。3. Simplify the process of expansion and installation, improve work efficiency, and greatly reduce the expansion cost.
附图说明DRAWINGS
图1为本发明的GIS不停电扩建母线用功能模块的壳体带切口结构示意图。1 is a schematic view showing a structure of a casing with a function module of a GIS non-power-off expansion busbar according to the present invention.
图2为本发明的GIS不停电扩建母线用功能模块的剖面示意图。2 is a schematic cross-sectional view showing a functional module for a GIS non-power-off expansion busbar according to the present invention.
图3为图2区域A局部放大示意图。Figure 3 is a partially enlarged schematic view of the area A of Figure 2.
图4为发明的GIS母线不停电扩建原理示意图。FIG. 4 is a schematic diagram of the principle of the GIS busbar without power failure expansion.
附图标记说明：壳体1、双断口开关装置2、驱动装置3、临时接地开关装置4、支撑绝缘子5、第一气室6、一断口7、第二断口8、中心导体9、动触头10、静触头11、传动机构12、中心通道13、侧面通道14、第一弹簧触指15、内螺纹孔16、触头孔17、第二弹簧触指18、传动丝杆19、第一锥形齿轮20、第二锥形齿轮21、绝缘杆22、外螺纹部23、光杆部24、盆式绝缘子25、摆杆机构26。DESCRIPTION OF REFERENCE NUMERALS: housing 1, double-break switch device 2, drive device 3, temporary grounding switch device 4, support insulator 5, first air chamber 6, a fracture 7, second fracture 8, center conductor 9, dynamic touch Head 10, static contact 11, transmission mechanism 12, central passage 13, side passage 14, first spring contact 15, internal threaded hole 16, contact hole 17, second spring contact 18, drive screw 19, A bevel gear 20, a second bevel gear 21, an insulating rod 22, a male screw portion 23, a polished rod portion 24, a basin insulator 25, and a rocker mechanism 26.
具体实施方式Detailed ways
实施例Example
如图1至图3所示，GIS不停电扩建母线用功能模块，包括壳体1、双断口开关装置2、驱动装置3、临时接地开关装置4、支撑绝缘子5；所述的壳体1为柱状体，在壳体1的两端为导通方向；在所述的壳体1内安装有三组双断口开关 装置2，每组双断口开关装置2对应配套一组驱动装置3、一组临时接地开关装置4；所述的壳体1内腔形为气密封并成第一气室6；所述的三组双断口开关装置2互不接触且沿导通方向相互平行地设置在第一气室6内用于实现所述的壳体1两端的同步合闸或分闸；所述的双断口开关装置2的两端设有第一断口7、第二断口8，所述的双断口开关装置2通过驱动装置3带动可同时接通第一断口7、第二断口8使所述壳体1的两端实现导通；所述的临时接地开关装置4安装在壳体1上用于使双断口开关装置2实现接地操作。所述的双断口开关装置2包括中心导体9、动触头10、静触头11、传动机构12；所述的中心导体9为柱状体，其轴心位置设有轴线方向的中心通道13，在中心导体9的外周位置设有连通所述的中心通道13的侧面通道14；在中心通道13的两端的侧壁上设有用于夹持动触头10且让中心导体9与动触头10导通的第一弹簧触指15；所述的动触头10的外周与所述的中心通道13为间隙配合，在动触头10的一端轴心位置设有内螺纹孔16；所述的静触头11的轴心位置设有与所述的动触头10配合的触头孔17，在所述的触头孔17的内壁设有用于夹持动触头10且让静触头11与动触头10导通的第二弹簧触指18；所述的传动机构12包括传动丝杆19、第一锥形齿轮20、第二锥形齿轮21、绝缘杆22；所述的传动丝杆19的两端均设有与所述的动触头10的内螺纹孔16的外螺纹部23，其中部为光杆部24，所述的第一锥形齿轮20同轴安装在光杆部24上；所述的第二锥形齿轮21同轴安装在所述的绝缘杆22的一端；所述的三组中心导体9在截面方向呈“品”字形布置在所述的第一气室6内；所述的传动丝杆19通过中心通道13伸入中心导体9内部，在传动丝杆19上的第一锥形齿轮20与所述的侧面通道14位置关系对应，在中心导体9的两端分别***一个动触头10且动触头10的内螺纹孔16旋入所述的传动丝杆19的外螺纹部23，所述的绝缘杆22设有第二锥形齿轮21的一端伸入侧面通道14，第一锥形齿轮20与第二锥形齿轮21啮合，所述的绝缘杆22另一端与所述的驱动装置3连接；在壳体1内部导通方向的两侧上对应每个动触头10设置一个静触头11，所述的静触头11的触头孔17正对动触头10设置；所述的驱动装置3带动传动丝杆19转动使两端夹持在第一弹簧触指15上动触头10进行轴向的往复运动，动触头10伸出中心导体9后可***静触头11的触头孔17中，实现两端静触头11的导通或断绝。所述的支撑绝缘子5用于支撑所述的 中心导体9安装在壳体1的内部。所述的壳体1两端为盆式绝缘子25，所述的静触头11安装在盆式绝缘子25。所述的临时接地开关装置4为一摆杆机构26设置在壳体1内部，通过手动设置摆杆的位置使所述的中心导体9与壳体1导通实现接地操作。所述的绝缘杆22材质为环氧树脂。As shown in FIG. 1 to FIG. 3, the GIS does not power off and expand the function module for the bus bar, including the housing 1, the double-break switch device 2, the drive device 3, the temporary ground switch device 4, and the support insulator 5; a columnar body having a conduction direction at both ends of the casing 1; three sets of double-fracture switches are installed in the casing 1 Device 2, each set of double-break switch device 2 is correspondingly matched with a group of driving devices 3, a group of temporary grounding switch devices 4; the inner cavity of the casing 1 is air-tight and is formed into a first air chamber 6; The double-break switch device 2 is not in contact with each other and is disposed in parallel with each other in the conduction direction in the first air chamber 6 for realizing synchronous closing or opening of the two ends of the housing 1; the double-break switch device The two ends of the housing are provided with a first breaking port 7 and a second breaking port 8. The double-breaking switch device 2 is driven by the driving device 3 to simultaneously open the first breaking port 7 and the second breaking port 8 to make the two housings 1 The terminal is electrically connected; the temporary grounding switch device 4 is mounted on the housing 1 for enabling the double-break switch device 2 to perform a grounding operation. The double-break switch device 2 includes a center conductor 9, a movable contact 10, a static contact 11, and a transmission mechanism 12; the center conductor 9 is a columnar body, and the axial center position thereof is provided with a central passage 13 in the axial direction. A side passage 14 communicating with the center passage 13 is provided at an outer circumferential position of the center conductor 9; a side wall at both ends of the center passage 13 is provided with a movable contact 10 for holding the center conductor 9 and the movable contact 10 The first spring contact finger 15 is connected; the outer circumference of the movable contact 10 is in a clearance fit with the central passage 13 , and an inner threaded hole 16 is disposed at an axial center of one end of the movable contact 10; The axial center of the stationary contact 11 is provided with a contact hole 17 that cooperates with the movable contact 10, and an inner wall of the contact hole 17 is provided for clamping the movable contact 10 and the static contact 11 a second spring finger 18 that is electrically connected to the movable contact 10; the transmission mechanism 12 includes a drive screw 19, a first bevel gear 20, a second bevel gear 21, and an insulating rod 22; Both ends of the rod 19 are provided with external threaded portions 23 of the internally threaded holes 16 of the moving contact 10, and the middle portion is a polished rod portion 24, the first cone The gear 20 is coaxially mounted on the polished rod portion 24; the second tapered gear 21 is coaxially mounted at one end of the insulating rod 22; and the three sets of center conductors 9 are arranged in a "shape" shape in the cross-sectional direction. In the first plenum 6; the drive screw 19 extends through the central passage 13 into the center conductor 9, the first bevel gear 20 on the drive screw 19 and the side passage 14 Correspondingly, a movable contact 10 is inserted into each end of the center conductor 9, and the female screw hole 16 of the movable contact 10 is screwed into the external thread portion 23 of the drive screw 19, and the insulating rod 22 is provided. One end of the second bevel gear 21 extends into the side channel 14, the first bevel gear 20 meshes with the second bevel gear 21, and the other end of the insulating rod 22 is connected to the driving device 3; A static contact 11 is disposed on each of the movable contacts 10 on both sides of the internal conduction direction, and the contact hole 17 of the static contact 11 is disposed opposite to the movable contact 10; the driving device 3 drives the transmission The screw 19 is rotated to clamp the two ends of the first spring finger 15 to move the contact 10 for axial reciprocation, and the movable contact 10 is extended. The center conductor 9 can be inserted into the contact hole 17 of the static contact 11 to achieve conduction or disconnection of the static contacts 11 at both ends. The supporting insulator 5 is used to support the The center conductor 9 is mounted inside the casing 1. The two ends of the casing 1 are basin insulators 25, and the static contacts 11 are mounted on the basin insulators 25. The temporary grounding switch device 4 is disposed inside the casing 1 as a swing lever mechanism 26, and the center conductor 9 is electrically connected to the casing 1 by manually setting the position of the swing lever to realize a grounding operation. The insulating rod 22 is made of epoxy resin.
如图4所示，GIS不停电扩建母线方法，包括依次连接的GIS一期运行母线端口、权利要求1至6任一项所述的GIS不停电扩建母线用功能模块、第二气室及安装在第二气室上的接地刀闸、第三气室及设置在第三气室的GIS二期扩建端口，具体的方法步骤如下：As shown in FIG. 4, the GIS does not power off and expand the bus bar method, including the GIS first-phase running bus port connected in sequence, the GIS non-power-off expansion bus function module, the second air chamber and the installation according to any one of claims 1 to 6. The grounding knife gate on the second air chamber, the third air chamber and the second stage expansion port of the GIS installed in the third air chamber, the specific method steps are as follows:
S1.母线正常运行时，第一气室6、第二气室、第三气室内充入额定压力气体；双断口开关装置2处于分闸状态，临时接地开关装置4处于分闸状态；接地刀闸处于合闸状态。S1. When the busbar is in normal operation, the first air chamber 6, the second air chamber, and the third air chamber are filled with the rated pressure gas; the double-break switch device 2 is in the open state, and the temporary grounding switch device 4 is in the open state; the grounding knife The brake is in the closed state.
S2.扩建对接时，第一气室6充入额定压力气体；第二气室内气体降低为安全气压；第三气室内气体回收；对GIS二期扩建端口进行线路对接，对接完成后，通过接地刀闸来进行回路试验信号采集。S2. When the docking is extended, the first gas chamber 6 is filled with the rated pressure gas; the gas in the second gas chamber is reduced to the safe air pressure; the gas in the third gas chamber is recovered; the line is docked to the GIS phase 2 expansion port, and after the docking is completed, the grounding is completed. The knife gate is used for loop test signal acquisition.
S3.对扩建后进行耐压试验，第二气室内充入额定压力气体；确保双断口开关装置2处于分闸状态，临时接地开关装置4处于合闸状态，接地刀闸处于分闸状态。S3. After the expansion test, the pressure test is carried out, and the second gas chamber is filled with the rated pressure gas; the double-break switch device 2 is in the open state, the temporary ground switch device 4 is in the closed state, and the grounding switch is in the open state.
S4.耐压试验完成后，将双断口开关装置2合闸，临时接地开关装置4处于分闸状态，接地刀闸处于分闸状态；扩建完成并正常投入使用。S4. After the pressure test is completed, the double-break switch device 2 is closed, the temporary ground switch device 4 is in the open state, and the grounding switch is in the open state; the expansion is completed and put into normal use.
上列详细说明是针对本发明可行实施例的具体说明，该实施例并非用以限制本发明的专利范围，凡未脱离本发明所为的等效实施或变更，均应包含于本案的专利范围中。 The detailed description above is a detailed description of the possible embodiments of the present invention, which is not intended to limit the scope of the invention, and the equivalents and modifications of the present invention should be included in the scope of the patent. in.

Claims (7)

  1. GIS不停电扩建母线用功能模块，其特征在于，包括壳体、双断口开关装置、驱动装置、临时接地开关装置；所述的壳体为柱状体，在壳体的两端为导通方向；在所述的壳体内安装有三组双断口开关装置，每组双断口开关装置对应配套一组驱动装置、一组临时接地开关装置；The function module for expanding the busbar of the GIS without power failure is characterized in that it comprises a casing, a double-break switch device, a driving device and a temporary grounding switch device; the casing is a columnar body, and is electrically conductive at both ends of the casing; Three sets of double-break switch devices are installed in the casing, and each set of double-break switch devices is matched with a set of driving devices and a set of temporary grounding switch devices;
    所述的壳体内腔形为气密封并成第一气室；The inner cavity of the housing is airtight and formed into a first air chamber;
    所述的三组双断口开关装置互不接触且沿导通方向相互平行地设置在第一气室内用于实现所述的壳体两端的同步合闸或分闸；所述的双断口开关装置的两端设有第一断口、第二断口，所述的双断口开关装置通过驱动装置带动可同时接通第一断口、第二断口使所述壳体的两端实现导通；The three sets of double-fracture switch devices are not in contact with each other and are disposed in parallel with each other in the conduction direction in the first air chamber for realizing synchronous closing or opening of the two ends of the housing; The two ends of the casing are provided with a first fracture and a second fracture, and the double-breakage switch device is driven by the driving device to simultaneously open the first fracture and the second fracture to realize conduction between the two ends of the casing;
    所述的临时接地开关装置安装在壳体上用于使双断口开关装置实现接地操作。The temporary grounding switch device is mounted on the housing for grounding operation of the double-fracture switch device.
  2. 根据权利要求1所述的GIS不停电扩建母线用功能模块，其特征在于，所述的双断口开关装置包括中心导体、动触头、静触头、传动机构；所述的中心导体为柱状体，其轴心位置设有轴线方向的中心通道，在中心导体的外周位置设有连通所述的中心通道的侧面通道；在中心通道的两端的侧壁上设有用于夹持动触头且让中心导体与动触头导通的第一弹簧触指；所述的动触头的外周与所述的中心通道为间隙配合，在动触头的一端轴心位置设有内螺纹孔；所述的静触头的轴心位置设有与所述的动触头配合的触头孔，在所述的触头孔的内壁设有用于夹持动触头且让静触头与动触头导通的第二弹簧触指；所述的传动机构包括传动丝杆、第一锥形齿轮、第二锥形齿轮、绝缘杆；所述的传动丝杆的两端均设有与所述的动触头的内螺纹孔的外螺纹部，其中部为光杆部，所述的第一锥形齿轮同轴安装在光杆部上；所述的第二锥形齿轮同轴安装在所述的绝缘杆的一端；所述的三组中心导体在截面方向呈“品”字形布置在所述的第一气室内；所述的传动丝杆通过中心通道伸入中心导体内部，在传动丝杆上的第一锥形齿轮与所述的侧面通道位置关系对应，在中心导体的两端分别***一个动触头且动触头的内螺纹孔旋入所述的传动丝杆的外螺纹部，所述的绝缘杆设有第二锥形齿轮的一端伸入侧面通道，第一锥形齿轮与第二锥形齿轮啮合，所述的绝缘杆另一端与所述的驱动 装置连接；在壳体内部导通方向的两侧上对应每个动触头设置一个静触头，所述的静触头的触头孔正对动触头设置；所述的驱动装置带动传动丝杆转动使两端夹持在第一弹簧触指上动触头进行轴向的往复运动，动触头伸出中心导体后可***静触头的触头孔中，实现两端静触头的导通或断绝。The functional module for GIS uninterrupted expansion busbar according to claim 1, wherein the double-break switch device comprises a center conductor, a moving contact, a static contact, and a transmission mechanism; and the center conductor is a columnar body a central passage in the axial direction of the axial center, a side passage communicating with the central passage at a position of the outer circumference of the central conductor; and a movable contact for holding the movable contact on the side wall at both ends of the central passage a first spring contact finger of the central conductor and the movable contact; the outer circumference of the movable contact is in a clearance fit with the central passage, and an inner threaded hole is disposed at an axial center of one end of the movable contact; The axial position of the stationary contact is provided with a contact hole that cooperates with the movable contact, and an inner wall of the contact hole is provided for clamping the movable contact and guiding the static contact and the movable contact a second spring finger; the transmission mechanism includes a drive screw, a first bevel gear, a second bevel gear, and an insulating rod; both ends of the transmission screw are provided with the movement An external threaded portion of the internal threaded hole of the contact, the middle portion of which is a polished rod portion, The first bevel gear is coaxially mounted on the polished rod portion; the second tapered gear is coaxially mounted at one end of the insulating rod; and the three sets of central conductors are "product" in the cross-sectional direction a glyph is disposed in the first air chamber; the transmission screw extends into the center conductor through the central passage, and the first bevel gear on the transmission screw corresponds to the positional relationship of the side passage, and the center conductor Inserting a movable contact at each end of the movable contact and screwing the internal threaded hole of the movable contact into the external thread portion of the transmission screw, the insulating rod is provided with one end of the second tapered gear extending into the side passage, the first a bevel gear meshes with the second bevel gear, and the other end of the insulating rod is coupled to the drive a device is connected; a static contact is arranged corresponding to each movable contact on both sides of the inner conduction direction of the casing, and the contact hole of the static contact is opposite to the movable contact; the driving device drives the transmission The screw rotates so that the two ends are clamped on the first spring contact finger, and the movable contact performs axial reciprocating motion. After the movable contact protrudes from the center conductor, the movable contact can be inserted into the contact hole of the static contact to realize the static contact at both ends. Turn on or off.
  3. 根据权利要求2所述的GIS不停电扩建母线用功能模块，其特征在于，还包括支撑绝缘子，所述的支撑绝缘子用于支撑所述的中心导体安装在壳体的内部。The functional module for GIS uninterruptible expansion busbar according to claim 2, further comprising a supporting insulator for supporting said center conductor to be installed inside said casing.
  4. 根据权利要求2所述的GIS不停电扩建母线用功能模块，其特征在于，所述的壳体两端为盆式绝缘子，所述的静触头安装在盆式绝缘子。The functional module for GIS uninterrupted expansion busbar according to claim 2, wherein the two ends of the casing are basin insulators, and the static contacts are mounted on the basin insulators.
  5. 根据权利要求2所述的GIS不停电扩建母线用功能模块，其特征在于，所述的临时接地开关装置为一摆杆机构设置在壳体内部，通过手动设置摆杆的位置使所述的中心导体与壳体导通实现接地操作。The functional module for GIS non-power-off expansion bus bar according to claim 2, wherein the temporary grounding switch device is disposed inside the casing as a swing lever mechanism, and the center is set by manually setting the position of the swing lever. The conductor is electrically connected to the housing for grounding operation.
  6. 根据权利要求2至5任一项所述的GIS不停电扩建母线用功能模块，其特征在于，所述的绝缘杆材质为环氧树脂。The function module for a GIS non-power-off expansion bus bar according to any one of claims 2 to 5, wherein the insulating rod is made of epoxy resin.
  7. GIS不停电扩建母线方法，其特征在于，包括依次连接的GIS一期运行母线端口、权利要求1至6任一项所述的GIS不停电扩建母线用功能模块、第二气室及安装在第二气室上的接地刀闸、第三气室及设置在第三气室的GIS二期扩建端口，具体的方法步骤如下：The GIS non-power-off expansion bus method is characterized in that it comprises a GIS first-phase operation bus port connected in sequence, a functional module for GIS non-power-off expansion bus bar according to any one of claims 1 to 6, a second air chamber, and a first installation. The grounding knife gate on the second air chamber, the third air chamber and the second stage expansion port of the GIS installed in the third air chamber, the specific method steps are as follows:
    S1.母线正常运行时，第一气室、第二气室、第三气室内充入额定压力气体；双断口开关装置处于分闸状态，临时接地开关装置处于分闸状态；接地刀闸处于合闸状态；S1. When the busbar is in normal operation, the first air chamber, the second air chamber and the third air chamber are filled with the rated pressure gas; the double-break switch device is in the open state, the temporary grounding switch device is in the open state; the grounding switch is in the joint state Gate state
    S2.扩建对接时，第一气室充入额定压力气体；第二气室内气体降低为安全气压；第三气室内气体回收；对GIS二期扩建端口进行线路对接，对接完成后，通过接地刀闸来进行回路试验信号采集；S2. When the docking is expanded, the first air chamber is filled with the rated pressure gas; the second gas chamber is reduced to the safe air pressure; the third gas chamber is recovered; the GIS second-stage expansion port is connected to the line, and after the docking is completed, the grounding knife is passed. The gate is used for loop test signal acquisition;
    S3.对扩建后进行耐压试验，第二气室内充入额定压力气体；确保双断口开关装置处于分闸状态，临时接地开关装置处于合闸状态，接地刀闸处于分闸状态；S3. After the expansion test, the pressure test is carried out, and the second gas chamber is filled with the rated pressure gas; the double-break switch device is in the open state, the temporary ground switch device is in the closed state, and the grounding switch is in the open state;
    S4.耐压试验完成后，将双断口开关装置合闸，临时接地开关装置处于分闸状态，接地刀闸处于分闸状态；扩建完成并正常投入使用。 S4. After the pressure test is completed, the double-break switch device is closed, the temporary grounding switch device is in the open state, and the grounding knife gate is in the open state; the expansion is completed and put into normal use.
PCT/CN2017/096381 2017-07-03 2017-08-08 Functional module for implementing extension of gis busbar with no power outage and extension method WO2019006814A1 (en)

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