CN109148204A - A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch - Google Patents

A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch Download PDF

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Publication number
CN109148204A
CN109148204A CN201710501784.XA CN201710501784A CN109148204A CN 109148204 A CN109148204 A CN 109148204A CN 201710501784 A CN201710501784 A CN 201710501784A CN 109148204 A CN109148204 A CN 109148204A
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CN
China
Prior art keywords
isolation
phase
grounding switch
static contact
contact
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Granted
Application number
CN201710501784.XA
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Chinese (zh)
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CN109148204B (en
Inventor
刘帅
刘彦军
高延峰
唐晓
黄腾飞
茹晓光
武敬艳
刘亚辉
龙红军
孙丹丹
沈学银
张亚垒
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Henan Pingzhi High Voltage Switchgear Co Ltd
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Original Assignee
Henan Pingzhi High Voltage Switchgear Co Ltd
State Grid Corp of China SGCC
Pinggao Group Co Ltd
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Application filed by Henan Pingzhi High Voltage Switchgear Co Ltd, State Grid Corp of China SGCC, Pinggao Group Co Ltd filed Critical Henan Pingzhi High Voltage Switchgear Co Ltd
Priority to CN201710501784.XA priority Critical patent/CN109148204B/en
Publication of CN109148204A publication Critical patent/CN109148204A/en
Application granted granted Critical
Publication of CN109148204B publication Critical patent/CN109148204B/en
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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
    • 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
    • H01H31/023—Base and stationary contacts mounted thereon
    • 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
    • H01H31/026—Movable parts and contacts mounted thereon

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  • Gas-Insulated Switchgears (AREA)

Abstract

The present invention relates to a kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch, three-station isolating grounding switch includes shell, isolation static contact, intermediate moving contact and grounding static contact are in axial direction disposed in shell, shell includes straight barrel and the insulating basin for being set to straight barrel both ends, isolation static contact is set on the insulating basin of one end by quiet collateral support conductor, intermediate moving contact is set on the insulating basin of the other end by moving collateral support conductor, and grounding static contact insulation set is on the barrel of straight barrel.The shell it is relatively simple for structure, shell is easy to process, does not need in addition to open up port, improve the intensity of shell, and such arrangement makes integral installation more convenient, and be conducive to three-station isolating grounding switch integral miniaturization design.

Description

A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch
Technical field
The invention belongs to high voltage substation fields, and in particular to a kind of gas-insulating and fully-enclosed combined electrical apparatus and thirdly station Isolation earthing switch.
Background technique
The gas-insulating and fully-enclosed combined electrical apparatus of GIS() China is introduced since the eighties in last century, nowadays in high-voltage transforming The field of station is used widely.With the raising that designer recognizes electric system, to stable power grid environment and maintenance More stringent requirements are proposed for convenience, such as increases isolation fracture and earthing or grounding means, straight line before arrester and voltage transformer Type three-station isolating grounding switch is come into being.The relatively low 110kV GIS of voltage class is mostly used in city and underground power transformation In standing, arrangement space is extremely limited, and this requires the arrangements of GIS entirety to want extremely compact, or even develops into the shape of rebuilding Formula.It how is set not only to have met electrical performance demands but also the space that practices every conceivable frugality, miniaturization is simplified and cost effective, becomes each The important topic of a GIS producer exploitation design.
The structure of current three-station isolating grounding switch, the China if Authorization Notice No. is 203966948 U of CN are practical A kind of novel disclosed three-station isolating grounding switch, including three isolation earthing switch are single-phase, and each isolation earthing switch is single-phase Include the barrel-type casing that extends in left-right direction of axis and be set to the grounding static contact of enclosure interior, intermediate moving contact and Static contact is isolated, isolation static contact is set on the insulating basin of shell one end, and grounding static contact is set to the shell other end On shell flange, another disc insulator is arranged radially on the barrel of shell, intermediate moving contact is set to benzvalene form insulation On son.The Chinese invention patent application that application publication number is CN 106611675A discloses a kind of isolation of three station of compact and connects Ground switch, is three-phase combined type structure, including shell, the left and right ends of shell are respectively arranged with insulating basin, the lower end of shell It is provided with insulating basin, moving contact is set on the insulating basin of lower end by dynamic side conductor, and isolation static contact is led by quiet side Body is set on the insulating basin of left and right ends.The cartridge openings of above three-station isolating grounding switch are more, lead to structure Complexity, casing rigidity reduce, and connection insulating basin is required at cartridge openings, cause shell processing inconvenient, the isolation of three stations Earthing switch overall package is inconvenient.
Summary of the invention
The purpose of the present invention is to provide a kind of easy to process and installation three-station isolating grounding switch；Meanwhile this hair Bright purpose, which also resides in, provides a kind of gas-insulating and fully-enclosed combined electrical apparatus using the three-station isolating grounding switch.
To achieve the above object, a kind of technical solution of three-station isolating grounding switch of the invention is: a kind of three stations It is quiet to be in axial direction disposed with isolation static contact, intermediate moving contact and ground connection in shell for isolation earthing switch, including shell Contact, the shell include straight barrel and the insulating basin for being set to straight barrel both ends, and isolation static contact is led by quiet collateral support Body is set on the insulating basin of one end, and intermediate moving contact is set on the insulating basin of the other end by moving collateral support conductor, Grounding static contact insulation set is on the barrel of straight barrel.
Observation window corresponding with isolation static contact is provided on the barrel of the straight barrel.
The three-station isolating grounding switch is three-phase combined type structure, which includes three and keep apart Close single-phase, single-phase each isolation earthing switch includes isolation static contact, intermediate moving contact and grounding static contact, and each isolation ground connection is opened It closes single-phase isolation static contact parallel interval to be set on quiet collateral support conductor, the single-phase intermediate moving contact of each isolation earthing switch Parallel interval, which is set to, to be moved on collateral support conductor.
It on the quiet collateral support conductor and moves on collateral support conductor including three branch conductors, on quiet collateral support conductor Branch conductors are oppositely arranged two-by-two with the branch conductors moved on collateral support conductor, the single-phase isolation static contact of each isolation earthing switch It is correspondingly arranged in the branch conductors being oppositely arranged two-by-two with intermediate moving contact.
The outside of the shell is provided with operating mechanism, operating mechanism and the single-phase intermediate moving contact of each isolation earthing switch Between be provided with three-phase ganged bar, on three-phase ganged bar setting there are three gear, be provided on each intermediate moving contact for it is right The rack gear for answering gear to engage.
A kind of gas-insulating and fully-enclosed combined electrical apparatus of the invention is that technical solution is: a kind of gas-insulating and fully-enclosed group Close electric appliance, including three-station isolating grounding switch, three-station isolating grounding switch includes shell, in shell in axial direction successively Isolation static contact, intermediate moving contact and grounding static contact, the shell is provided with to include straight barrel and be set to straight barrel both ends Insulating basin, isolation static contact be set on the insulating basin of one end by quiet collateral support conductor, intermediate moving contact pass through moves Collateral support conductor is set on the insulating basin of the other end, and grounding static contact insulation set is on the barrel of straight barrel.
Observation window corresponding with isolation static contact is provided on the barrel of the straight barrel.
The three-station isolating grounding switch is three-phase combined type structure, which includes three and keep apart Close single-phase, single-phase each isolation earthing switch includes isolation static contact, intermediate moving contact and grounding static contact, and each isolation ground connection is opened It closes single-phase isolation static contact parallel interval to be set on quiet collateral support conductor, the single-phase intermediate moving contact of each isolation earthing switch Parallel interval, which is set to, to be moved on collateral support conductor.
It on the quiet collateral support conductor and moves on collateral support conductor including three branch conductors, on quiet collateral support conductor Branch conductors are oppositely arranged two-by-two with the branch conductors moved on collateral support conductor, the single-phase isolation static contact of each isolation earthing switch It is correspondingly arranged in the branch conductors being oppositely arranged two-by-two with intermediate moving contact.
The outside of the shell is provided with operating mechanism, operating mechanism and the single-phase intermediate moving contact of each isolation earthing switch Between be provided with three-phase ganged bar, on three-phase ganged bar setting there are three gear, be provided on each intermediate moving contact for it is right The rack gear for answering gear to engage.
The beneficial effects of the present invention are: shell includes straight barrel, isolation static contact and intermediate moving contact are respectively arranged at directly On the insulating basin at cylinder both ends, grounding static contact is set on the barrel of straight barrel, shell it is relatively simple for structure, shell adds Work is convenient, does not need in addition to open up port, improves the intensity of shell, and such arrangement compares integral installation It is convenient, and be conducive to the integral miniaturization design of three-station isolating grounding switch.
Further, it is provided with observation window on the barrel of straight barrel, can checks the installation condition of internal insulation static contact, The opening and closing state of intermediate moving contact and isolation both static contact detect its whether divide-shut brake in place.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of the embodiment one of three-station isolating grounding switch of the invention；
The right view of Fig. 2 bitmap 1；
Fig. 3 is a kind of schematic diagram of internal structure of three-station isolating grounding switch of the invention；
Fig. 4 is cross-sectional view of the Fig. 3 at A-A；
Fig. 5 is structural schematic diagram when three-station isolating grounding switch is on；
Fig. 6 is structural schematic diagram when three-station isolating grounding switch is in isolated bit；
Fig. 7 is structural schematic diagram when three-station isolating grounding switch is in ground connection position.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
A kind of embodiment one of three-station isolating grounding switch of the invention, as shown in Figures 1 to 7, including shell, shell Including straight barrel 1 and the first insulating basin 2 and the second insulating basin 3 that are set to 1 both ends of straight barrel, three station isolation ground connection Switch is three-phase combined type structure, and three-station isolating grounding switch includes that three isolation earthing switch being set in shell are single-phase, Single-phase each isolation earthing switch includes the isolation static contact 7 set gradually along the axis direction of straight barrel 1, intermediate moving contact 6 With grounding static contact 8.The both ends of straight barrel 1 are welded with connecting flange, for installing corresponding insulating basin, the two of straight barrel 1 End can be connected with GIS bus, can be not only used for playing isolated port in main bus-bar, and can be used for arrester and electricity The installation for pressing mutual inductor, reaches the requirement of simplified structure, preferred arrangement.
It is provided with quiet collateral support conductor 12 on first insulating basin 2 of 1 one end of straight barrel, the second of 1 other end of straight barrel It is provided on insulating basin 3 and moves collateral support conductor 13, quiet collateral support conductor 12 includes three branches with collateral support conductor 13 is moved Conductor (14,15), it is quiet it is collateral support conductor 12 on branch conductors 14 with move it is collateral support conductor 13 on 15 liang of two-phases of branch conductors To setting, the single-phase isolation static contact 7 of each isolation earthing switch and intermediate moving contact 6 are correspondingly arranged in point being oppositely arranged two-by-two On branch conductor, intermediate moving contact 6 is horizontal to be slided and is conductively connected on the respective branch conductor 15 for moving collateral support conductor 13.Straight tube Body 1 is welded using the aluminium alloy plate of 10mm thickness, and observation window 5 corresponding with isolation static contact 7 is provided on upper side tube-wall, is seen Examine the installation condition that window 5 is checked for internal insulation static contact 7, the division of 7 the two of intermediate moving contact 6 and isolation static contact Lock state-detection its whether divide-shut brake in place, can effectively find the problem in advance, equipment is avoided to break down.Grounding static contact 8 are set on the barrel of straight barrel 1 by insulation board 10, make grounding static contact 8 and shell insulation set, and grounding static contact 8 has There is the leading-out terminal 16 convenient for measuring device connection for stretching out shell, in order to the measurement etc. of major loop resistance.When equipment is in When operating status, it is connected with separation panel 11 on leading-out terminal 16 and is grounded.
Hull outside is provided with operating mechanism 4, operating mechanism 4 and the single-phase intermediate moving contact 6 of each isolation earthing switch it Between be provided with the three-phase ganged bar 9 of insulation, setting is arranged useful there are three gear on each intermediate moving contact 6 on three-phase ganged bar 9 In the rack gear engaged with gear.It ensure that the single-phase intermediate moving contact 6 of three isolation earthing switch links, it is ensured that three centres The action consistency of moving contact 6.The isolation instruction device and use for being used to indicate isolation static contact working condition are provided on shell In instruction grounding static contact working condition ground connection instruction device, when intermediate moving contact 6 with i.e. three works when static contact 7 contacts are isolated When position isolation earthing switch is on, isolation instruction device is located at " ON " state, when intermediate 6 both ends of moving contact be isolated it is quiet When i.e. three-station isolating grounding switch is located at isolated bit when contact 7 and grounding static contact 8 do not contact, isolation instruction device is located at " OFF " state connects when intermediate moving contact 6 is contacted with grounding static contact 8, i.e. three-station isolating grounding switch is located at ground connection position Ground instruction device is located at " ON " state.
A kind of embodiment two of three-station isolating grounding switch of the invention, the difference with embodiment one is, is not provided with Observation window.
A kind of embodiment three of three-station isolating grounding switch of the invention, the difference with embodiment one is, in shell It is single-phase that one three-station isolating grounding switch is only set.

Claims (10)

1.一种三工位隔离接地开关，包括壳体，壳体内沿轴向方向依次设置有隔离静触头、中间动触头和接地静触头，其特征在于：所述壳体包括直筒体和设置于直筒体两端的绝缘盆子，隔离静触头通过静侧支撑导体设置于一端的绝缘盆子上，中间动触头通过动侧支撑导体设置于另一端的绝缘盆子上，接地静触头绝缘设置于直筒体的筒壁上。1. A three-position isolation grounding switch, comprising a housing, and an isolation static contact, an intermediate moving contact and a grounding static contact are sequentially arranged in the housing along the axial direction, and it is characterized in that: the housing comprises a straight cylindrical body And the insulating pots arranged at both ends of the straight cylinder, the isolation static contact is arranged on the insulating pot at one end through the static side supporting conductor, the middle moving contact is arranged on the insulating pot at the other end through the moving side supporting conductor, and the grounding static contact is insulated. It is arranged on the cylinder wall of the straight cylinder. 2.根据权利要求1所述的三工位隔离接地开关，其特征在于：所述直筒体的筒壁上设置有与隔离静触头对应的观察窗。2 . The three-position isolation grounding switch according to claim 1 , wherein an observation window corresponding to the isolation static contact is arranged on the cylinder wall of the straight cylinder. 3 . 3.根据权利要求1所述的三工位隔离接地开关，其特征在于：该三工位隔离接地开关为三相共箱结构，该三工位隔离接地开关包括三个隔离开关单相，各隔离接地开关单相均包括隔离静触头、中间动触头和接地静触头，各隔离接地开关单相的隔离静触头平行间隔设置于静侧支撑导体上，各隔离接地开关单相的中间动触头平行间隔设置于动侧支撑导体上。3. The three-position isolating grounding switch according to claim 1, wherein the three-position isolating and grounding switch is a three-phase common box structure, and the three-position isolating The single-phase isolation grounding switch includes isolation static contact, intermediate moving contact and grounding static contact. The isolation static contact of each isolated grounding switch single-phase is arranged on the static side support conductor at a parallel interval, and the middle of each isolated grounding switch single-phase The movable contacts are arranged on the movable side support conductors in parallel and spaced apart. 4.根据权利要求3所述的三工位隔离接地开关，其特征在于：所述静侧支撑导体上和动侧支撑导体上均包括三个分支导体，静侧支撑导体上的分支导体与动侧支撑导体上的分支导体两两相对设置，各隔离接地开关单相的隔离静触头和中间动触头对应设置于两两相对设置的分支导体上。4. The three-position isolation grounding switch according to claim 3, wherein the static side support conductor and the moving side support conductor both include three branch conductors, and the branch conductor on the static side support conductor is connected to the moving side support conductor. The branch conductors on the side support conductors are arranged opposite to each other, and the isolated static contacts and the middle moving contacts of the single-phase isolation grounding switches are correspondingly arranged on the opposite branch conductors. 5.根据权利要求3所述的三工位隔离接地开关，其特征在于：所述壳体的外部设置有操动机构，操动机构与各隔离接地开关单相的中间动触头之间设置有三相联动杆，三相联动杆上设置有三个齿轮，各中间动触头上设置有用于与对应齿轮啮合的齿条。5 . The three-position isolating grounding switch according to claim 3 , wherein an operating mechanism is provided outside the casing, and the operating mechanism is provided between the operating mechanism and the single-phase intermediate moving contacts of each isolating grounding switch. 6 . There is a three-phase linkage rod, the three-phase linkage rod is provided with three gears, and each intermediate movable contact is provided with a rack for meshing with the corresponding gear. 6.一种气体绝缘全封闭组合电器，包括三工位隔离接地开关，三工位隔离接地开关包括壳体，壳体内沿轴向方向依次设置有隔离静触头、中间动触头和接地静触头，其特征在于：所述壳体包括直筒体和设置于直筒体两端的绝缘盆子，隔离静触头通过静侧支撑导体设置于一端的绝缘盆子上，中间动触头通过动侧支撑导体设置于另一端的绝缘盆子上，接地静触头绝缘设置于直筒体的筒壁上。6. A gas-insulated fully enclosed combined electrical appliance, comprising a three-position isolation grounding switch, the three-position isolation grounding switch includes a housing, and an isolation static contact, an intermediate moving contact and a grounding static contact are arranged in the housing in sequence along the axial direction. The contact is characterized in that: the casing includes a straight cylinder and insulating basins arranged at both ends of the straight cylinder, the isolation static contact is arranged on the insulating basin at one end through the static side supporting conductor, and the middle moving contact is supported by the moving side. Conductor It is arranged on the insulating pot at the other end, and the grounding static contact is insulated and arranged on the wall of the straight cylinder. 7.根据权利要求6所述的气体绝缘全封闭组合电器，其特征在于：所述直筒体的筒壁上设置有与隔离静触头对应的观察窗。7 . The gas-insulated fully enclosed combined electrical appliance according to claim 6 , wherein an observation window corresponding to the isolation static contact is arranged on the cylinder wall of the straight cylinder. 8 . 8.根据权利要求6所述的气体绝缘全封闭组合电器，其特征在于：该三工位隔离接地开关为三相共箱结构，该三工位隔离接地开关包括三个隔离开关单相，各隔离接地开关单相均包括隔离静触头、中间动触头和接地静触头，各隔离接地开关单相的隔离静触头平行间隔设置于静侧支撑导体上，各隔离接地开关单相的中间动触头平行间隔设置于动侧支撑导体上。8 . The gas-insulated fully enclosed combined electrical appliance according to claim 6 , wherein the three-position isolating grounding switch is a three-phase common box structure, and the three-position isolating grounding switch comprises three isolating switches single-phase, each The single-phase isolation grounding switch includes isolation static contact, intermediate moving contact and grounding static contact. The isolation static contact of each isolated grounding switch single-phase is arranged on the static side support conductor at a parallel interval, and the middle of each isolated grounding switch single-phase The movable contacts are arranged on the movable side support conductors in parallel and spaced apart. 9.根据权利要求8所述的气体绝缘全封闭组合电器，其特征在于：所述静侧支撑导体上和动侧支撑导体上均包括三个分支导体，静侧支撑导体上的分支导体与动侧支撑导体上的分支导体两两相对设置，各隔离接地开关单相的隔离静触头和中间动触头对应设置于两两相对设置的分支导体上。9 . The gas-insulated fully enclosed combined electrical appliance according to claim 8 , wherein the static side supporting conductor and the moving side supporting conductor both comprise three branch conductors, and the branch conductor on the static side supporting conductor is the same as the dynamic side supporting conductor. 10 . The branch conductors on the side support conductors are arranged opposite to each other, and the isolated static contacts and the middle moving contacts of the single-phase isolation grounding switches are correspondingly arranged on the opposite branch conductors. 10.根据权利要求8所述的气体绝缘全封闭组合电器，其特征在于：所述壳体的外部设置有操动机构，操动机构与各隔离接地开关单相的中间动触头之间设置有三相联动杆，三相联动杆上设置有三个齿轮，各中间动触头上设置有用于与对应齿轮啮合的齿条。10 . The gas-insulated fully enclosed combined electrical appliance according to claim 8 , wherein an operating mechanism is provided on the outside of the casing, and the operating mechanism is provided between the operating mechanism and the intermediate moving contacts of the single-phase isolation grounding switches. 11 . There is a three-phase linkage rod, the three-phase linkage rod is provided with three gears, and each intermediate movable contact is provided with a rack for meshing with the corresponding gear.
CN201710501784.XA 2017-06-27 2017-06-27 Gas insulated totally-enclosed combined electrical apparatus and three-station isolation grounding switch thereof Active CN109148204B (en)

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Cited By (4)

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CN109509673A (en) * 2019-01-10 2019-03-22 广东阿尔派电力科技股份有限公司 Novel equal three station double-fracture disconnecting switch of angular displacements
CN112683508A (en) * 2020-12-21 2021-04-20 江苏恒高电气制造有限公司 Gas insulation transmission line contact life test device
CN113917300A (en) * 2021-10-08 2022-01-11 江苏安靠智能输电工程科技股份有限公司 Direct connection device of gas-insulated high-voltage switch and power transformer
CN117477417A (en) * 2023-12-28 2024-01-30 沈阳华德海泰电器有限公司 Environment-friendly gas-insulated closed combined electrical apparatus

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* Cited by examiner, † Cited by third party
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CN109509673A (en) * 2019-01-10 2019-03-22 广东阿尔派电力科技股份有限公司 Novel equal three station double-fracture disconnecting switch of angular displacements
CN109509673B (en) * 2019-01-10 2023-09-12 广东阿尔派电力科技股份有限公司 Novel equiangular displacement three-station double-break isolating switch
CN112683508A (en) * 2020-12-21 2021-04-20 江苏恒高电气制造有限公司 Gas insulation transmission line contact life test device
CN113917300A (en) * 2021-10-08 2022-01-11 江苏安靠智能输电工程科技股份有限公司 Direct connection device of gas-insulated high-voltage switch and power transformer
CN117477417A (en) * 2023-12-28 2024-01-30 沈阳华德海泰电器有限公司 Environment-friendly gas-insulated closed combined electrical apparatus
CN117477417B (en) * 2023-12-28 2024-04-12 沈阳华德海泰电器有限公司 Environment-friendly gas-insulated closed combined electrical apparatus

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