WO2017107744A1 - Circuit principal d'appareillage de commutation isolé solide et appareillage de commutation isolé solide utilisant le circuit principal - Google Patents

Circuit principal d'appareillage de commutation isolé solide et appareillage de commutation isolé solide utilisant le circuit principal Download PDF

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Publication number
WO2017107744A1
WO2017107744A1 PCT/CN2016/107645 CN2016107645W WO2017107744A1 WO 2017107744 A1 WO2017107744 A1 WO 2017107744A1 CN 2016107645 W CN2016107645 W CN 2016107645W WO 2017107744 A1 WO2017107744 A1 WO 2017107744A1
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WO
WIPO (PCT)
Prior art keywords
main circuit
module
solid insulated
phase
contact
Prior art date
Application number
PCT/CN2016/107645
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English (en)
Chinese (zh)
Inventor
王海燕
费翔
李小军
袁端磊
朱志豪
杨芳
张永辉
何周
祁海洋
Original Assignee
国家电网公司
平高集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 国家电网公司, 平高集团有限公司 filed Critical 国家电网公司
Publication of WO2017107744A1 publication Critical patent/WO2017107744A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24—Circuit arrangements for boards or switchyards
    • 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
    • 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
    • H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • 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
    • H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
    • 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
    • H02B13/01—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with resin casing
    • 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
    • H02B13/0358—Connections to in or out conductors

Definitions

  • the invention relates to the field of switchgear, in particular to a main circuit of a solid insulated cabinet and a solid insulated cabinet using the same.
  • solid insulated switchgear is widely used as a green environmental protection switch product.
  • the main circuit structure in the current switchgear cabinet generally adopts a horizontal layout structure, resulting in a cabinet size that is too large.
  • the station switch is vacuum or air insulated, which is not reliable and is susceptible to the external environment.
  • the main circuit structure of the commonly used solid insulated cabinet generally adopts a unipolar structure longitudinally and a three-pole structure is arranged laterally.
  • a three-station solid insulated switchgear disclosed in the publication No. CN103346504A published on 20131009 including A which is assembled side by side.
  • the three-pole main circuit box body monopole structure is longitudinally unfolded, A, B, C phase main circuit box is horizontally arranged, resulting in a large cabinet width, disassembly and commissioning inconvenient.
  • the purpose of embodiments of the present invention is to provide a main circuit of a solid insulated cabinet to solve the problem of the current wide size of the solid insulated cabinet.
  • a first aspect of an embodiment of the present invention provides a main circuit of a solid insulated cabinet, wherein the main circuit includes a three-phase monopole structure, the monopolar structures of the phases are laterally expanded, and the three-phase monopole structure is vertically arranged. .
  • the single-pole structure of each phase comprises a busbar module, a three-station module, an inlet and outlet module, and a breaking module for opening and closing loads and short-circuit currents from the top to the bottom.
  • the three-station module has a coaxial cylindrical electrode structure that seals the air cavity.
  • the three-station module includes an isolated static contact, a conductive contact, a grounded static contact, a movable contact, and the movable contact respectively separates the isolated static contact, the conductive contact, and the grounded static contact
  • the movable conductive connection, the isolated static contact, the conductive contact, and the grounded static contact are fixedly connected by the cast insulating sleeve, and the movable contact is disposed inside the insulating sleeve and is electrically connected with the conductive contact, and the movable contact is connected.
  • the moving contact Under the driving of the three-station operating mechanism, the moving contact is driven up and down in a straight line to complete the gear rack structure with three states of isolation, conduction and grounding.
  • the main circuit is encapsulated by an insulating material, and the outer casing of the insulating material is coated with a ground layer.
  • the inlet and outlet line module comprises an insulating plug, a sealing rubber pad, and a main circuit phase sequence for distributing the busbar side from the front to the rear to convert the phase sequence structure from left to right as seen from the front of the cabinet body.
  • the copper cable, the in-out copper cable and the conductive contact form an electrical connection.
  • the embodiment of the invention also discloses a solid insulation cabinet, comprising a cabinet body and a main circuit, wherein the main circuit comprises a three-phase monopole structure, and the monopolar structures of the phases are laterally unfolded, and the three-phase monopole structure is Arrange vertically.
  • each phase monopolar structure comprises a bus bar module, a three-station module with a coaxial cylindrical electrode structure with a sealed air cavity, an inlet and outlet module, and a breaking module for opening and closing loads and short-circuit currents.
  • the busbar module, the breaking module, the three-station module, and the incoming and outgoing line modules are laterally deployed from top to bottom.
  • the inlet and outlet line module comprises an insulating plug, a sealing rubber pad, and a main circuit phase sequence for distributing the busbar side from the front to the rear to convert the phase sequence structure from left to right as seen from the front of the cabinet body.
  • the copper cable, the in-out copper cable and the conductive contact form an electrical connection.
  • the cabinet includes a pressure relief passage, a main circuit compartment, a cable compartment, and a mechanism Room and instrument room, the main circuit is fixed in the main circuit compartment, the pressure relief channel is fixed on the left side of the main circuit compartment, and the instrument room, the mechanism room and the cable room are arranged from the top to the bottom in the longitudinal direction of the main circuit compartment.
  • the main circuit of the solid insulation cabinet comprises a three-phase monopole structure, the monopolar structures of the phases are laterally unfolded, and the three-phase monopole structure is arranged longitudinally, by making the three-phase monopole of the main circuit
  • the structure is laterally unfolded and arranged longitudinally, which can reduce the cabinet width of the solid insulated cabinet, and solves the problem of the current wide size of the solid insulated cabinet.
  • Figure 1 is a general structural view of an embodiment of a solid insulated cabinet of the present invention
  • Figure 2 is a detailed structural view of the main circuit of Figure 1;
  • Figure 3 is a cross-sectional view showing the structure of the three-position switch module of Figure 2;
  • Figure 4 is a top plan view of the structure of the solid inlet and outlet module of Figure 2;
  • Figure 5 is a cross-sectional view taken along line A-A of Figure 4.
  • Figure 6 is a perspective side view of an embodiment of a solid insulated cabinet of the present invention.
  • the solid insulated cabinet is mainly composed of a main circuit 1 and a cabinet 2, wherein the main circuit 1 includes a bus bar module 11 and is broken.
  • the module 12, the three-station module 13 and the incoming and outgoing line module 14 have four sub-modules, and the main circuit 1 component adopts a coaxial cylindrical shape to avoid electric field concentration.
  • the busbar module 11 serves as a busbar system of the solid insulated cabinet 2 for collecting and distributing a primary current, and is electrically connected to the breaking module 12 and the busbar module of the adjacent cabinet by means of interface insulation;
  • the breaking module 12 may be a vacuum load switch or Circuit breaker for opening and closing load, short circuit current, and arc extinguishing
  • the chamber is encapsulated by a solid insulating material;
  • the three-station module 13 is a coaxial cylindrical electrode structure having a sealed air cavity, and the breaking module 12 and the three-station module 13 are connected by interface insulation.
  • the three-station module 13 includes an isolated static contact 131, a movable contact 135, a grounding bar 138, a grounding static contact 139, an insulating sleeve 1311, and a transmission rack and pinion structure 1312.
  • a conductive contact shielding ring 136, a ground floating shielding ring 137 and a grounding static contact shielding ring 1310 disposed at the grounding fracture.
  • the isolation static contact 131, the ground static contact 139 and the conduction contact 1313 are respectively sleeved and connected with the movable contact 135, and are fixed by the insulating sleeve 1311 cast by the solid insulating material after the casting mold is positioned, and the solid after casting is formed.
  • the three-position block module has a cylindrical shape and is provided with a cylindrical inner cavity. The two ends of the cylindrical inner cavity are respectively an isolated static contact 131 and a grounded static contact 139.
  • the movable contact 135 is a circular tube structure, and the mating ends of the isolation static contact 131 and the ground static contact 139 and the movable contact 135 are both sleeve structures, and the movable contact 135 is sleeved to cooperate with the conductive, and the movable contact 135 is external.
  • the tube wall is provided with a gear extending along the linear movement direction of the movable contact, and the solid-sealed three-station module is provided with a gear which cooperates with the rack to form the rack-and-pinion structure 1312, and the movable contact 135 and the transmission rack-and-pinion structure 1312 are installed.
  • the movable contact 135 and the conduction contact 1313 are connected by spring fingers to form a dynamic conductive connection, and the transmission rack and pinion structure 1312 is driven by the three-station operating mechanism.
  • the contact 135 moves up and down in a linear direction to complete switching of three working states of isolation, conduction and grounding.
  • the sealing cover 1315 is used to block the solid-sealed three-position switch from the outside conduction to form a closed air cavity, so that the insulation level of the three-station module fracture is not affected by the external environment such as condensation and dust, and the three workers are improved.
  • the reliability of the bit module is improved.
  • the grounding static contact 139 is electrically connected to the grounding bar 138 by bolting and is finally connected to the main grounding circuit of the cabinet 2.
  • the high electric field strength region of the high voltage component to the ground is limited to the inside of the insulating sleeve 1311 with good dielectric properties to reduce the electric field strength assumed by the air, thereby satisfying the requirement of insulation performance with a small fracture distance, the coaxial cylindrical electrode and the shielding component.
  • the use also improves the concentrated distribution of the electric field in the junction area of air, conductor and solid insulating material, thereby limiting the amount of partial discharge.
  • the solid insulating materials described in this embodiment are all epoxy resins, and the surface of the solid insulating material is covered with an aluminum or semi-conductive coating by an electrophoretic coating technique, and is reliably grounded.
  • the incoming and outgoing line module 14 connects the current conducted from the busbar module 11 to the high voltage cable and accessories.
  • 4 is a specific structure of the solid-sealed inlet and outlet module.
  • the inlet and outlet module 14 is mainly composed of an insulating plug 141, a sealing rubber pad 142, a C phase in and out of the copper wire 143, a B phase in and out of the copper wire 144, and an A phase in and out of the copper wire.
  • 145 is constructed of a solid insulating material 146. It can be seen from FIG.
  • the through contact 1313 forms an electrically conductive connection, and converts the main circuit phase sequence of the busbar side from front to back to a phase sequence structure from left to right when viewed from the front of the cabinet, which is in accordance with the current use of the ring network power distribution switch device in the market. habit.
  • the insulating plug 141 and the sealing rubber pad 142 are used to block the exposed portion of the incoming and outgoing wire conductors, and the air should be discharged as much as possible during the sealing process, and a green grounding coating is applied on the outside of the insulating plug 141. Layer to achieve safe and reliable grounding of the enclosure.
  • the breaking module 12 is connected below the bus bar module 11, the pole of the bus bar module 11 is located on the left side of the bus bar module 11, and the conduction contact 1313 of the three-station module 13 includes horizontal horizontal segments and vertical In the straight section, one end of the horizontal transverse section is sleeve-fitted with the movable contact, and the other end is connected with the vertical section.
  • the breaking module 12 is located above the horizontal lateral section of the conduction contact 1313, and the vertical section of the conduction contact 1313
  • the lower extension is connected to the outlet module 14 located below the three-station module 12.
  • the cabinet 2 includes a pressure relief passage 21, a main circuit compartment 22, a cable compartment 23, a mechanism chamber 24, and an instrument room 25.
  • the five functional compartments support and protect the corresponding main circuit, the main circuit is fixed in the main circuit compartment 22, and the pressure relief passage 21 is fixed on the left side in the longitudinal direction of the main circuit compartment 22, the instrument room 25,
  • the mechanism chamber 24 and the cable chamber 23 are arranged on the right side in the longitudinal direction of the main circuit compartment from top to bottom, and the upper and lower longitudinal stacking structures are used between the functional compartments, and the functional compartments of the solid insulated cabinet are vertically arranged vertically.
  • the cabinet width of the solid insulated cabinet is reduced to a greater extent, and the outer shell support and protection system of the solid insulated cabinet is formed from the bottom.
  • the main circuit structure of the switchgear cabinet is located in the main circuit compartment after being modularized as a whole, and the problem that the main circuit structure of the switchgear cabinet is located in a plurality of different compartments causes the structure of the main circuit to be not compact, the cabinet body is solved.
  • Both the main circuit and the main circuit adopt a modular design.
  • the cabinet and the main circuit are arranged in a longitudinal direction, which effectively reduces the width of the solid insulated cabinet, and is convenient for assembly, debugging and maintenance, more compact structure, high modularity and integration. Saves floor space.
  • the main circuit may not adopt a modular design, and only the single-pole structures of each phase are laterally deployed, and the three-phase monopole structure is longitudinally arranged;
  • the spring finger may also be The strap is a finger;
  • the solid insulating material may also be an insulating rubber;
  • the rack may also be disposed on the inner wall of the movable contact, and the gear is disposed in the movable contact, and is disposed on the movable contact There is a guiding hole for connecting the three-station transmission mechanism with the gear;
  • the three-station module can also adopt a screw nut mechanism to drive the moving contact;
  • the three-station module can also adopt other shapes of the coaxial motor
  • the rack is disposed on the movable contact, such as a square or the like, the movable contact may also be a flat shape, and the shape of the static contact and the conductive contact is adapted to the shape of the movable contact.
  • An embodiment of the main circuit of the fixed insulated cabinet the structure of the main circuit of the fixed insulated cabinet is the same as that of the main circuit described in the embodiment of the solid insulated cabinet described above, and details are not described herein.
  • the main circuit of the solid insulated cabinet includes a three-phase unipolar structure, and the monopolar structures of the respective phases are laterally expanded, and the three-phase unipolar structure is vertically arranged, and the main circuit is
  • the three-phase monopole structure of the road is laterally deployed and longitudinally arranged, which can reduce the cabinet width of the solid insulated cabinet, and solves the problem of the current wide size of the solid insulated cabinet.
  • the single-pole structure of each phase comprises a busbar module, a three-station module, an inlet and outlet module, and a breaking module for opening and closing loads and short-circuit currents, which are laterally unfolded from top to bottom, and the modules are self-contained.
  • the top-down lateral unfolding arrangement makes the main circuit compact, reduces the size and footprint of the solid insulation cabinet, and is convenient for disassembly and assembly.
  • the three-station module has a coaxial cylindrical electrode structure for sealing the air cavity, which improves the reliability and stability of the air dielectric medium of the three-station switch fracture.
  • the main circuit is encapsulated by an insulating material, and the outer shell of the insulating material is coated with a grounding layer, which reduces phase-to-phase and short-circuit faults to the ground, and is safe and reliable.
  • the inlet and outlet line module comprises an insulating plug, a sealing rubber pad, and a main circuit phase sequence for distributing the busbar side from the front to the rear to convert the copper wire into and out of the phase sequence structure from the left to the right when viewed from the front of the cabinet.
  • the incoming and outgoing copper cable is electrically connected to the conductive contact through the bolt, and the converted main circuit phase sequence conforms to the usage habit of the incoming and outgoing lines of the ring network power distribution switch device on the market.
  • the cabinet comprises a pressure relief channel, a main circuit compartment, a cable room, a mechanism room and an instrument room, the main circuit is fixed in the main circuit compartment, and the pressure relief channel is fixed on the left side of the main circuit compartment in the longitudinal direction, the instrument room The mechanism room and the cable room are arranged on the right side of the main circuit compartment from the top to the bottom.
  • the main circuit of the solid insulation cabinet comprises a three-phase monopole structure, the monopolar structures of the phases are laterally unfolded, and the three-phase monopole structure is arranged longitudinally, by making the three-phase monopole of the main circuit
  • the structure is laterally unfolded and arranged longitudinally, which can reduce the cabinet width of the solid insulated cabinet, and solves the problem of the current wide size of the solid insulated cabinet.

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

Abstract

L'invention concerne un circuit principal (1) d'un appareillage de commutation isolé solide et un appareillage de commutation isolé solide utilisant le circuit principal (1). Le circuit principal (1) d'un appareillage de commutation isolé solide comprend une structure monoélectrode triphasée. La structure monoélectrode de chaque phase est conçue pour s'étendre horizontalement. La structure monoélectrode triphasée est agencée verticalement. La structure monoélectrode triphasée du circuit principal (1) s'étend horizontalement et est agencée verticalement, de sorte que la largeur de l'appareillage de commutation isolé solide peut être réduite, résolvant ainsi un problème de grande largeur d'un appareillage de commutation isolé solide conventionnel.
PCT/CN2016/107645 2015-12-24 2016-11-29 Circuit principal d'appareillage de commutation isolé solide et appareillage de commutation isolé solide utilisant le circuit principal WO2017107744A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510983845.1 2015-12-24
CN201510983845.1A CN105514817A (zh) 2015-12-24 2015-12-24 一种固体绝缘柜的主回路及使用该主回路的固体绝缘柜

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WO2017107744A1 true WO2017107744A1 (fr) 2017-06-29

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CN (1) CN105514817A (fr)
WO (1) WO2017107744A1 (fr)

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CN107240883A (zh) * 2017-07-03 2017-10-10 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 Gis不停电扩建母线用功能模块及扩建方法
CN107293982A (zh) * 2017-08-24 2017-10-24 协成科技股份有限公司 纵向移开式断路器中置柜
CN109950825A (zh) * 2019-04-25 2019-06-28 上海巴佩开关设备有限公司 一种上下气箱结构的气体绝缘金属封闭开关设备
CN110246722A (zh) * 2019-07-12 2019-09-17 四川汇友电气有限公司 一种电气化铁道固体绝缘双断口隔离开关
CN110364955A (zh) * 2019-08-27 2019-10-22 山西施瑞德电力科技有限公司 一种空气绝缘环网柜
CN112382526A (zh) * 2020-10-22 2021-02-19 北京龙源开关设备有限责任公司 一种环保型三工位上隔离开关一体化断路器
CN112614741A (zh) * 2020-12-14 2021-04-06 北京双杰电气股份有限公司 三工位瞬时直动式固体绝缘断路器
CN112653008A (zh) * 2020-12-15 2021-04-13 北京双杰电气股份有限公司 一种户外一体式sf6环网柜
CN112688223A (zh) * 2020-12-07 2021-04-20 平高集团有限公司 一种充气柜
CN114362027A (zh) * 2021-12-16 2022-04-15 平高集团有限公司 一种充气柜及其气箱
CN114884041A (zh) * 2022-04-07 2022-08-09 西北核技术研究所 一种双极性气动高电压大功率隔离泄放保护装置
CN112382526B (zh) * 2020-10-22 2024-06-07 北京龙源开关设备有限责任公司 一种环保型三工位上隔离开关一体化断路器

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CN108320991A (zh) * 2018-01-06 2018-07-24 北海银河开关设备有限公司 一种电气化机车接地开关极柱

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CN105514817A (zh) * 2015-12-24 2016-04-20 平高集团有限公司 一种固体绝缘柜的主回路及使用该主回路的固体绝缘柜
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CN107240883B (zh) * 2017-07-03 2023-05-23 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 Gis不停电扩建母线用功能模块及扩建方法
CN107240883A (zh) * 2017-07-03 2017-10-10 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 Gis不停电扩建母线用功能模块及扩建方法
CN107293982A (zh) * 2017-08-24 2017-10-24 协成科技股份有限公司 纵向移开式断路器中置柜
CN107293982B (zh) * 2017-08-24 2023-09-26 协成科技股份有限公司 纵向移开式断路器中置柜
CN109950825A (zh) * 2019-04-25 2019-06-28 上海巴佩开关设备有限公司 一种上下气箱结构的气体绝缘金属封闭开关设备
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CN112382526A (zh) * 2020-10-22 2021-02-19 北京龙源开关设备有限责任公司 一种环保型三工位上隔离开关一体化断路器
CN112382526B (zh) * 2020-10-22 2024-06-07 北京龙源开关设备有限责任公司 一种环保型三工位上隔离开关一体化断路器
CN112688223A (zh) * 2020-12-07 2021-04-20 平高集团有限公司 一种充气柜
CN112688223B (zh) * 2020-12-07 2022-12-13 平高集团有限公司 一种充气柜
CN112614741B (zh) * 2020-12-14 2022-07-12 北京双杰电气股份有限公司 三工位瞬时直动式固体绝缘断路器
CN112614741A (zh) * 2020-12-14 2021-04-06 北京双杰电气股份有限公司 三工位瞬时直动式固体绝缘断路器
CN112653008B (zh) * 2020-12-15 2023-09-22 北京双杰电气股份有限公司 一种户外一体式sf6环网柜
CN112653008A (zh) * 2020-12-15 2021-04-13 北京双杰电气股份有限公司 一种户外一体式sf6环网柜
CN114362027A (zh) * 2021-12-16 2022-04-15 平高集团有限公司 一种充气柜及其气箱
CN114362027B (zh) * 2021-12-16 2024-04-09 平高集团有限公司 一种充气柜及其气箱
CN114884041A (zh) * 2022-04-07 2022-08-09 西北核技术研究所 一种双极性气动高电压大功率隔离泄放保护装置

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