WO2017152667A1 - 隔离接地开关机构、开关设备及其导向触头座 - Google Patents

隔离接地开关机构、开关设备及其导向触头座 Download PDF

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Publication number
WO2017152667A1
WO2017152667A1 PCT/CN2016/108144 CN2016108144W WO2017152667A1 WO 2017152667 A1 WO2017152667 A1 WO 2017152667A1 CN 2016108144 W CN2016108144 W CN 2016108144W WO 2017152667 A1 WO2017152667 A1 WO 2017152667A1
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WO
WIPO (PCT)
Prior art keywords
contact
switch
seat
grounding switch
guiding
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Application number
PCT/CN2016/108144
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English (en)
French (fr)
Inventor
薛红涛
方煜瑛
李健
胡劲涛
张皓祺
彭曼
秦泳
黄刚
Original Assignee
国家电网公司
河南平高电气股份有限公司
平高集团有限公司
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Application filed by 国家电网公司, 河南平高电气股份有限公司, 平高集团有限公司 filed Critical 国家电网公司
Publication of WO2017152667A1 publication Critical patent/WO2017152667A1/zh

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • H01H31/023Base and stationary contacts mounted thereon
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • H01H31/026Movable parts and contacts mounted thereon
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • H02B13/075Earthing arrangements

Definitions

  • the invention relates to the field of high voltage switchgear, in particular to an isolated earthing switch mechanism, a switch device and a guide contact seat thereof.
  • the current transformer connection position and the bus connection position of the isolated grounding switch mechanism of the gas insulated metal-enclosed switchgear (hereinafter referred to as GIS) of the 3/2 wiring are generally left and right, as shown in Fig. 1, and the grounding switch mechanism is isolated during use. 101 can only be installed in a straight line with the current transformer 102, the bus bar 104, and the circuit breaker 103, which results in a long 3/2 wiring interval, which causes the current 3/2 wiring GIS to occupy a large area.
  • the prior art has adopted an L-type main conductive loop to reduce the footprint of the GIS electrical equipment.
  • the switch mechanism includes a housing and an isolating switch and a grounding switch mounted on the housing, wherein a contact portion of the isolating switch and the grounding switch is disposed inside the housing, and the driving portion is disposed on the housing.
  • the isolating switch comprises an isolating switch moving contact and an isolating switch static contact
  • the grounding switch comprises a grounding switch moving contact and a grounding switch static contact.
  • a transformer connection terminal for electrically connecting with the transformer is disposed between the isolation switch and the grounding switch, and the transformer connection terminal is integrated with the isolation switch static contact and the grounding switch static contact to form a connection contact seat.
  • the integrated contact design of the external contact terminal and the isolating switch movable contact seat realizes that the main conductive loop of the isolated grounding switch mechanism is arranged in an "L" shape, but in the main conductive loop of the L-shaped arrangement, the main The insertion direction of the loop-connecting conductive structure and the moving direction of the movable contact may not be in the same direction, which causes most of the main circuit to be connected to the conductive structure in the horizontal direction, and the switchgear of the isolating switch is in the up and down direction when in use.
  • the embodiment of the present invention is intended to provide a guide contact base to solve the problem that the current guide contact seat is easy to cause a large space occupied by the isolated ground switch mechanism and the durability of the component is poor;
  • the above-mentioned highly integrated guiding contact seat has an isolated grounding switch mechanism and a switching device.
  • An isolated grounding switch mechanism provided by an embodiment of the present invention includes a casing, an isolating switch, and a grounding switch.
  • the isolating switch includes an isolating switch moving contact and an isolating switch dynamic and static contact arranged side by side along a set axial direction, and the grounding
  • the switch comprises a grounding switch moving contact and a grounding switch dynamic and static contact, wherein the outer casing is provided with a transformer connection terminal for electrically connecting with the transformer, and an external terminal for connecting with the main circuit to connect the conductive structure, and the outer casing is provided in the outer casing.
  • the guide contact seat package a seat body and an isolating switch movable contact seat disposed on the seat body, the transformer connection terminal being disposed on the seat body and connected to the housing of the outer casing, wherein the housing is further provided with a connecting contact seat of the guiding contact seat arranged horizontally and horizontally in the axial direction, wherein the isolation switch static contact is disposed at a position of the connecting contact seat facing the guiding contact seat, and the external terminal is disposed at the connection a position on the contact base capable of connecting the main circuit into the conductive structure in the axial direction, the seat body is provided with a guiding hole horizontally disposed in the isolated grounding switch mechanism, and the opening at one end of the guiding hole is connected to the main circuit In the access direction of the conductive structure, the movable switch of the isolating switch is horizontally inserted into the guiding hole in the axial direction, the movable switch of the isolating switch has a closing work station, and the movable contact of the isolating
  • the embodiment of the present invention provides a transformer connection terminal on the base of the guide contact base and a guide hole for horizontally disposed in the isolated ground switch mechanism, compared with the prior art guide contact holder.
  • the guiding contact seat in the technology integrates the external terminal and the isolating switch moving contact seat, and the opening and closing action of the isolating switch moving contact is used for breaking the transformer and the main circuit to access the conductive structure.
  • FIG. 1 is a schematic structural view of a gas insulated metal-enclosed switchgear
  • FIG. 2 is a schematic structural diagram of a switch device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an isolated grounding switch mechanism of another switch device according to an embodiment of the present invention.
  • Figure 4 is a cross-sectional view along line A-A of Figure 3;
  • Figure 5 is a cross-sectional view along line B-B of Figure 3;
  • Figure 6 is a bottom view of Figure 3;
  • Figure 7 is a left side view of Figure 6.
  • the switch device provided by the embodiment of the present invention is a gas insulated metal-enclosed switch device with a 3/2 connection, including an isolated ground switch mechanism 1, a circuit breaker 3, a current transformer 2, and a bus bar 4.
  • the isolated grounding switch mechanism 1 includes a housing 19, an isolating switch 12 mounted on the housing 19, and a grounding switch 11.
  • the isolating switch 12 includes an isolating switch mechanism transmission box 121, an isolating switch moving contact 124, an isolating switch static contact 123, and a grounding switch.
  • 11 includes a grounding switch mechanism transmission box 111, a grounding switch moving contact 112, and a grounding switch static contact 113.
  • the outer casing 19 is a cylindrical structure, and an insulating support cylinder 13 is disposed therein, and the isolating switch moving contact 124 is coaxially inserted in the insulation.
  • the inside of the support cylinder 13 is provided with a guide contact holder 14 for electrically connecting with the current transformer 2, and a connection contact holder 15 for electrically connecting with the busbar 4.
  • the guide contact holder 14 includes The sleeve 140 fixedly connected to the insulating support cylinder 13 and the grounding switch static contact seat 141 fixed on the sleeve 140, the current transformer connecting terminal 145, and the isolation switch moving contact 124 are electrically connected and guided to isolate Switching the contact holder 142.
  • the sleeve 140 is also referred to as a seat.
  • a guiding hole for horizontally disposed in the isolated grounding switch mechanism is disposed on the base body, and an opening at one end of the guiding hole is used to access the access direction of the conductive structure toward the main circuit, and an opening at the other end of the guiding hole is provided.
  • the movable switch of the isolating switch is horizontally inserted, and the base is further provided with a transformer connection terminal.
  • the sleeve body 140 is provided with a guiding hole for horizontally disposed in the isolated grounding switch mechanism, and an opening at one end of the guiding hole is used for accessing the conductive structure toward the main loop, and the other end of the guiding hole is The opening is for horizontal insertion of the isolating switch moving contact, and the base body is further provided with a transformer connection terminal.
  • the sleeve body 140 is provided with a guiding hole horizontally disposed in the isolated grounding switch mechanism. One end of the guiding hole is fixed to the isolating switch moving contact seat 142, and the other end is horizontally inserted by the isolating switch moving contact 124 and the insulating rod 122.
  • the opening of one end of the isolating switch moving contact seat is set toward the access direction of the bus bar.
  • the sleeve body 140 is further provided with a grounding switch static contact seat mounting hole for fixing the grounding switch static contact seat 141, and a grounding switch disposed opposite to the grounding switch static contact seat mounting hole for facilitating the grounding switch moving contact to be worn.
  • the movable contact wear hole 143 The grounding switch static contact seat mounting hole and the current transformer connecting terminal 145 are circumferentially spaced apart from each other, and the other side opposite to the current transformer connecting terminal 145 in the radial direction of the sleeve body is provided with a spare grounding switch static contact seat.
  • the mounting hole 144 can be installed with different orientations as needed.
  • the grounding switch static contact seat 141, the current transformer connecting terminal 145, and the isolating switch moving contact seat 142 are integrated on the guiding contact seat 14, so that the height of the guiding contact seat 14 is integrated, so that the connecting contact seat only needs to be
  • the integrated busbar connection terminal and the isolating switch static contact seat can reduce the volume of the connecting contact seat, and the highly integrated guiding contact seat saves space inside the casing and reduces the volume of the casing.
  • the connecting contact seat 15 is further provided with an external terminal for connecting the bus bar.
  • the isolating switch static contact 123 is disposed at a position of the connecting contact seat 15 facing the guiding contact seat 14, and the external terminal is disposed at the connecting contact seat.
  • the position of the busbar 4 can be inserted along the axial direction of the outer casing cylinder, and the isolating switch moving contact 124 is axially guided and inserted into the guiding contact seat 14, and the isolating switch moving contact 124 has a closing position.
  • the isolating switch moving contact 124 is in contact with the connecting contact seat 15 at the closing position. Connection touch
  • the headstock 15 and the guide contact holder 14 are juxtaposed horizontally along the axial direction of the casing cylinder.
  • the grounding switch static contact 113 is integrated on the guiding contact seat 14, and the grounding switch moving contact 112 and the grounding switch static contact 113 are correspondingly disposed in a direction perpendicular to the axial direction.
  • the isolating switch moving contact 124 moves left and right in the axial direction of the outer casing cylinder to realize the opening and closing operation of the isolating switch, and the outer casing cylinder is horizontally disposed, so the axial direction of the outer casing cylinder is also arranged in the horizontal direction.
  • the isolating switch moving contact 124 can move left and right in the horizontal direction, and the isolated grounding switch mechanism of the present invention occupies a small space in the vertical direction compared with the technically isolated isolating switch static contact moving up and down in the vertical direction.
  • the current transformer connection terminal 145 is disposed on the guide contact holder 14, and the connection contact holder 15 for breaking the isolation switch movable contact 124 is provided only with the isolation switch static contact 123 and the external terminal, the external terminal It is not easy to be damaged by itself.
  • the transformer connection terminal is disposed on the connection contact seat, the arc and impact force generated when the isolation switch movable contact is closed is not easy to damage the isolation grounding switch of the present invention.
  • a shielding cover is disposed on the guiding contact seat 14, and the shielding cover can optimize the electric field around the guiding contact seat.
  • the isolating switch moving contact 124 is connected to the isolating switch mechanism transmission box 121 through the insulating rod 122.
  • the insulating rod 122 insulates the main circuit from the outer casing 19.
  • the insulating rod 122 and the isolating switch moving contact 124 are disposed on the central axis of the insulating supporting cylinder.
  • the insulating support cylinder is used to support the guide contact holder 14 while ensuring the insulation strength of the guide contact holder 14 to the ground.
  • the outer casing 19 is provided with a busbar connection position for connection with the busbar 4 and a current transformer connection position for connection with the current transformer 2, a current transformer connection position, a busbar connection position, a guide contact seat, and a connection contact seat. "L" type arrangement.
  • a first insulating basin 161 connected to the guiding contact seat 14 is disposed on the current transformer connection of the casing 19, and the first insulating basin 161 is flexibly and electrically connected to the current transformer connecting terminal 145 on the guiding contact holder 14 to avoid installation, The damage of the guide contact seat, the current transformer and the first insulating basin caused by the component error and the excessive impact force of the isolating switch moving contact during the closing and closing.
  • the busbar connection position is provided with a second insulating basin 162 fixedly connected to the connecting contact seat 15, the outer casing 19 is a cylindrical structure, the isolating switch 12 and the second insulating basin 162 are respectively disposed at two ends of the cylinder, the grounding switch 11 and the An insulating basin 161 is disposed on the side wall of the cylinder.
  • the outer casing 19 is provided with an explosion-proof device 17 for releasing pressure when the pressure in the outer casing 19 of the isolated grounding switch mechanism 1 exceeds a set value.
  • the explosion-proof device 17 is a rupture disk, and the main conductive circuit discharges the outer casing 19 of the isolated grounding switch mechanism 1.
  • the explosion-proof device 17 can perform pressure relief protection to prevent the molten metal particles from splashing outward in the outer casing.
  • the outer casing 19 is further provided with a grounding terminal 18 for inflating the grounding terminal 20, and a grounding terminal 18 for grounding the outer casing 19, and the inflating nozzle 20 is for vacuuming, inflating and returning the isolated grounding switch mechanism 1.
  • the isolating switch mechanism transmission box 121 drives the isolating switch moving contact 124 to perform the opening and closing operation of the isolating switch.
  • the isolating switch moving contact 124 When the switch is closed, the isolating switch moving contact 124 is disposed on the isolating switch moving contact 124.
  • the valve-shaped contact finger realizes electrical connection with the guiding contact seat and the connecting contact seat.
  • the opening When the opening is opened, the isolating switch moving contact 124 is separated from the connecting contact seat 15, and the main circuit is disconnected.
  • the circuit breaker 3 is a horizontal circuit breaker, and a current transformer 2 is disposed above each end of the circuit breaker 3.
  • An isolated grounding switch mechanism 1 is disposed above the current transformer 2, and the first insulation of the current transformer 2 and the isolated grounding switch mechanism 1 is provided.
  • the basin 161 is docked, and the second insulating basin 162 of the isolated grounding switch mechanism 1 is docked with the busbar 4.
  • the main conductive loop composed of the isolating switch mechanism 1, the current transformer 2, and the busbar 4 is "L" type, which can avoid the isolated grounding switch mechanism.
  • the current transformer 2 and the circuit breaker 3 are arranged on a line, effectively reducing the current floor space of the gas-insulated metal-enclosed switchgear, and the outer casing 19 of the isolated grounding switch mechanism 1 is a cylinder structure, and the grounding switch mechanism 1 is laterally Provided above the current transformer 2, between the guide contact holder 14 and the connection contact holder 15
  • the set distance can also offset the length of a busbar, reduce the amount of busbars, and save costs.
  • the second insulating basin 162 is connected to the busbar 4 without connecting the bellows, and also reduces the length of the entire gas-insulated metal-enclosed switchgear. Reduced footprint.
  • the isolated grounding switch mechanism in the isolated grounding switch mechanism provided by the embodiment of the present invention has the same structure as the isolated grounding switch mechanism in the specific embodiment of the above-mentioned switchgear device, and details are not described herein.
  • the guide contact seat in the guide contact base provided by the embodiment of the present invention has the same structure as that of the guide contact base in the specific embodiment of the above switch device, and details are not described herein again.
  • the isolated grounding switch mechanism and the switching device using the same, the insulating support device in the above embodiment may also be a support frame.
  • the support frame may not be provided;
  • the explosion-proof device may also be an explosion-proof valve;
  • the petal-shaped finger on the movable contact of the isolating switch may also be a spring finger;
  • the current transformer may also be a voltage transformer according to requirements;
  • the static contact may not be integrated on the guiding contact seat, and a grounding switch static contact seat is additionally disposed on the insulating support cylinder;
  • the movable switch contact seat of the above is also disposed on the insertion end of the insulating pull rod of the sleeve body,
  • the isolated switch moving contact should be adjusted according to the actual situation; the above isolated grounding switch mechanism can also be used in solid insulated switchgear.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

高压开关设备领域中的一种隔离接地开关机构(1)、开关设备及其导向触头座(14)。导向触头座(14)包括座体(140)和设置在座体(140)上的隔离开关动触头座(142),所述座体(140)上设有用于在隔离接地开关机构(1)中水平设置的导向孔,导向孔一端的开口用于朝向主回路接入导电结构的接入方向,另一端的开口用于朝向隔离开关动触头(124)插入的方向,所述座体(140)上还设有互感器连接端子。

Description

隔离接地开关机构、开关设备及其导向触头座 技术领域
本发明涉及高压开关设备领域,特别涉及一种隔离接地开关机构、开关设备及其导向触头座。
背景技术
目前3/2接线的气体绝缘金属封闭开关设备(以下简称GIS)的隔离接地开关机构的电流互感器连接位和母线连接位一般为左右布置,如图1所示,在使用时隔离接地开关机构101只能与电流互感器102、母线104、断路器103安装在一条直线上,这样导致一个完成的3/2接线间隔长,造成了目前的3/2接线的GIS占地面积大的问题。为了解决GIS占地面积大的问题,现有技术有通过使用L型主导电回路以减小GIS电气设备的占地面积,例如公布号为CN105070577A公布日为20151118的中国专利公开的一种隔离接地开关机构,包括外壳和装配在外壳上的隔离开关和接地开关,其中隔离开关和接地开关的接触部分设置在外壳内部,而驱动部分设置在外壳上。隔离开关包括隔离开关动触头和隔离开关静触头,接地开关包括接地开关动触头和接地开关静触头。隔离开关和接地开关之间设有用于与互感器电连接的互感器连接端子,该互感器连接端子与隔离开关静触头、接地开关静触头集成形成连接触头座。该开关设备中还设有用于与主导电回路上的主导电杆连接的外接端子,主导电杆属于主回路接入导电结构的一种,主回路接入导电结构还可以是母线等其他结构。该开关设备中还设有导向触头座,导向触头座包括座体及设置在座体上用于对隔离开关动触头起导向作用的隔离开关动触头座,外接端子集成在导向触头座上,隔离开关动触头导向穿装在导向触头座中,主导电回路呈“L”型布置。虽然上 述导向触头座将外接端子与隔离开关动触头座的集成化设计实现了隔离接地开关机构的主导电回路呈“L”型布置,但是,在该L型布置的主导电回路中,主回路接入导电结构的插入方向与动触头的运动方向不能是同一个方向,这导致大部分主回路接入导电结构为水平方向的开关设备在使用时其隔离开关动触头在上下方向上竖直移动,由于隔离开关动触头上下方向上竖直移动的行程较长,导致隔离开关机构在竖直方向上占用空间大,而且隔离开关动触头拆装不方便,而且隔离开关动触头在合闸时与连接触头座之间易产生电弧,且产生较大的冲击力,容易损坏连接触头座上的互感器连接端子及接地开关静触头,导致该开关设备的零部件耐用性差。
发明内容
本发明实施例期望提供一种导向触头座,以解决目前的导向触头座易造成隔离接地开关机构占用空间大、零部件耐用性差的问题;此外本发明实施例还在提供以一种使用上述高度集成化的导向触头座的隔离接地开关机构及开关设备。
本发明实施例提供的导向触头座,包括座体和设置在座体上的隔离开关动触头座,所述座体上设有用于在隔离接地开关机构中水平设置的导向孔,导向孔一端的开口用于朝向主回路接入导电结构的接入方向,导向孔的另一端的开口供隔离开关动触头水平插入,所述座体上还设有互感器连接端子。
本发明实施例提供给的一种隔离接地开关机构,包括外壳、隔离开关、接地开关,隔离开关包括沿设定的轴向并列设置的隔离开关动触头、隔离开关动静触头,所述接地开关包括接地开关动触头、接地开关动静触头,所述外壳内设有用于与互感器电连接的互感器连接端子、用于与主回路接入导电结构连接的外接端子,外壳内设有导向触头座,所述导向触头座包 括座体和设置在所述座体上的隔离开关动触头座,所述互感器连接端子设置在所述座体上并与所述外壳的壳体连接,所述壳体内还设有与导向触头座沿轴向水平并列布置的连接触头座,所述隔离开关静触头设于所述连接触头座上的朝向所述导向触头座的位置,所述外接端子设于连接触头座上的能够使主回路接入导电结构沿轴向接入的位置,所述座体上设有用于在隔离接地开关机构中水平设置的导向孔,导向孔一端的开口朝向主回路接入导电结构的接入方向,隔离开关动触头沿轴向水平插入所述导向孔中,所述隔离开关动触头具有合闸工位,所述隔离开关动触头在所述合闸工位与所述连接触头座接触配合。
绝缘拉杆绝缘拉杆本发明实施例还提供一种开关设备,包括以上所述隔离接地开关机构。
本发明实施例提供的在导向触头座的座体上设置互感器连接端子和用于在隔离接地开关机构中水平设置的导向孔,与现有技术中的导向触头座相比,现有技术中的导向触头座是将外接端子和隔离开关动触头座集成在一起,而隔离开关动触头的分合闸动作的目的是用来开断互感器和主回路接入导电结构的,因此,在将外接端子集成在导向触头座的情况下,则互感器连接端子必然不能设置在导向触头座上,导致主回路接入导电结构的插入方向与动触头的运动方向不能是同一个方向,而本发明通过将互感器连接端子设置在导向触头座的座体上,并在座体上设置两端分别用于朝向主回路接入导电结构的接入方向和隔离开关动触头插入的方向的导向孔,使用时将主回路接入导电结构的插入方向与动触头的运动方向沿同一水平方向,解决了目前的导向触头座易造成隔离接地开关机构占用空间大、零部件耐用性差的问题。本发明实施例的导向触头座的座体还集成有接地开关静触头座,实现了导向触头座的高度集成化,减小了隔离开关机构的体积。
附图说明
图1为一种气体绝缘金属封闭开关设备的结构示意图;
图2为本发明实施例提供的一种开关设备的结构示意图;
图3为本发明实施例提供的另一种开关设备的隔离接地开关机构的结构示意图;
图4为图3沿A-A的剖视示意图;
图5为图3沿B-B的剖视示意图;
图6为图3的仰视示意图;
图7为图6的左视示意图。
具体实施方式
下面结合附图对本发明的实施实施例进行详细说明,应当理解,以下所说明的优选实施例仅用于说明和解释本发明,并不用于限定本发明。
如图2至图7所示,本发明实施例提供的开关设备为3/2接线的气体绝缘金属封闭开关设备,包括隔离接地开关机构1、断路器3、电流互感器2及母线4。
隔离接地开关机构1包括外壳19、装配在外壳19上的隔离开关12和接地开关11,隔离开关12包括隔离开关机构传动箱121、隔离开关动触头124、隔离开关静触头123,接地开关11包括接地开关机构传动箱111、接地开关动触头112、接地开关静触头113,外壳19为筒体结构,内设有绝缘支撑筒13,隔离开关动触头124同轴插设在绝缘支撑筒13的内部,绝缘支撑筒13上固设有用于与电流互感器2电连接的导向触头座14、用于与母线4电连接的连接触头座15,导向触头座14包括与绝缘支撑筒13固定连接的套体140及固设在套体140上的接地开关静触头座141、电流互感器连接端子145、与隔离开关动触头124电连接并对其进行导向的隔离开关动触头座142。
在本实施例中所述套体140又称为座体。在所述座体上设有用于在隔离接地开关机构中水平设置的导向孔,且该导向孔一端的开口用于朝向主回路接入导电结构的接入方向,导向孔的另一端的开口供隔离开关动触头水平插入,所述座体上还设有互感器连接端子。相当于所述套体140上设有用于在隔离接地开关机构中水平设置的导向孔,且该导向孔一端的开口用于朝向主回路接入导电结构的接入方向,导向孔的另一端的开口供隔离开关动触头水平插入,所述座体上还设有互感器连接端子。例如,套体140上设有用于在隔离接地开关机构中水平设置的导向孔,导向孔的一端固定隔离开关动触头座142,另一端供隔离开关动触头124和绝缘拉杆122水平插入,设置隔离开关动触头座的一端的开口朝向母线的接入方向。套体140上还设有用于固定接地开关静触头座141的接地开关静触头座安装孔、与接地开关静触头座安装孔相对设置用于方便接地开关动触头穿装的接地开关动触头穿装孔143。接地开关静触头座安装孔与电流互感器连接端子145在套体周向间隔设置,套体径向方向上与电流互感器连接端子145相对的另一侧设有备用接地开关静触头座安装孔144,根据需要可以选择不同的方位安装接地开关。导向触头座14上集成了接地开关静触头座141、电流互感器连接端子145、隔离开关动触头座142,实现了导向触头座14的高度集成化,使得连接触头座仅需要集成母线连接端子及隔离开关静触头座即可,减小了连接触头座的体积,同时高度集成化的导向触头座节省了外壳内的空间、减小了外壳体积。
连接触头座15上还设有用于连接母线的外接端子,隔离开关静触头123设于连接触头座15上的朝向导向触头座14的位置,所述外接端子设于连接触头座15上的能够使母线4沿外壳筒体轴向接入的位置,隔离开关动触头124沿轴向导向穿装在导向触头座14中,隔离开关动触头124具有合闸工位,隔离开关动触头124在合闸工位与连接触头座15接触配合。连接触 头座15与导向触头座14在沿外壳筒体的轴向水平并列设置。接地开关静触头113集成在导向触头座14上,接地开关动触112与接地开关静触头113沿垂直于所述轴向的方向对应设置。
在隔离开关机构使用时,隔离开关动触头124在外壳筒体轴向上左右移动,实现隔离开关的分合闸操作,外壳筒体水平设置,故外壳筒体的轴向也沿水平方向设置,隔离开关动触头124可在水平方向上左右移动,和有技术中的隔离开关静触头在竖直方向上上下移动相比,本发明的隔离接地开关机构在竖直方向上占用空间小,解决了目前的隔离接地开关机构的隔离开关动触头在上下方向上竖直移动造成隔离开关在竖直方向上占用空间大的问题,同时隔离开关动触头在水平方向上左右移动也方便隔离开关动触头的拆装,另外,由于导向触头座14在使用时与电流互感器2连接,连接触头座15与母线4连接,而导向触头座14与连接触头座15之间设有一定的距离,可以减少母线4的使用量。由于电流互感器连接端子145设置在导向触头座14上,而用于与隔离开关动触头124开断的连接触头座15上仅设置有隔离开关静触头123和外接端子,外接端子本身不易损坏,相比现有技术中将互感器连接端子设置在连接触头座上相比,在隔离开关动触头在合闸时产生的电弧及冲击力不容易损坏本发明的隔离接地开关机构的零部件。导向触头座14上设置有屏蔽罩,屏蔽罩可以实现对导向触头座周围电场的优化。
隔离开关动触头124通过绝缘拉杆122与隔离开关机构传动箱121连接,绝缘拉杆122使主回路与外壳19绝缘,绝缘拉杆122和隔离开关动触头124设置在绝缘支撑筒的中心轴线上,绝缘支撑筒用于支撑起导向触头座14同时保证导向触头座14对地绝缘强度。外壳19上设有用于与母线4连接的母线连接位和用于与电流互感器2连接的电流互感器连接位,电流互感器连接位、母线连接位、导向触头座、连接触头座呈“L”型布置。外 壳19上电流互感器连接位设有与导向触头座14连接的第一绝缘盆子161,第一绝缘盆子161与导向触头座14上的电流互感器连接端子145柔性电连接,避免安装、零部件误差及分合闸时隔离开关动触头冲击力过大等原因对导向触头座、电流互感器及第一绝缘盆子造成的破坏。
母线连接位设有与连接触头座15固定连接的第二绝缘盆子162,外壳19为筒体结构,隔离开关12及第二绝缘盆子162分别设置在筒体的两端,接地开关11及第一绝缘盆子161设置在筒体的侧壁。外壳19上设有用于在隔离接地开关机构1的外壳19内压力超过设定值时进行泄压的防爆装置17,防爆装置17为防爆片,主导电回路对隔离接地开关机构1的外壳19放电时,防爆装置17在隔离接地开关机构1的壳体内压力超过设定值时可以进行泄压保护,避免外壳内向外飞溅融化的金属颗粒。外壳19上还设有接地端子18、充气接嘴20,接地端子18用于外壳19的接地,充气接嘴20用于对隔离接地开关机构1抽真空、充气、回气。隔离开关12运行时,由隔离开关机构传动箱121带动隔离开关动触头124进行隔离开断的分合闸操作,合闸时,隔离开关动触头124通过设置在隔离开关动触头124上的瓣形触指实现与导向触头座、连接触头座的电气连接,分闸时隔离开关动触头124与连接触头座15分离,主回路断开。
断路器3为卧式断路器,断路器3两端的上方各设置有一个电流互感器2,电流互感器2上方设置隔离接地开关机构1,电流互感器2与隔离接地开关机构1的第一绝缘盆子161对接,隔离接地开关机构1的第二绝缘盆子162与母线4对接,由隔离开关机构1、电流互感器2、母线4组成的主导电回路呈“L”型,可以避免隔离接地开关机构和电流互感器2与断路器3布置在一条线上,有效降低目前的气体绝缘金属封闭开关设备的占地面积,另外隔离接地开关机构1的外壳19为筒体结构,隔离接地开关机构1横向设置在电流互感器2的上方,导向触头座14与连接触头座15之间的 设定的距离还可以抵消一段母线长度,减少了母线的用量,节省成本,第二绝缘盆子162与母线4连接不需要连接波纹管,也减小了整个气体绝缘金属封闭开关设备的长度,从而减小了占地面积。通过将隔离接地开关设置在断路器的上方,避免了将隔离接地开关直接固定在安装平台上,减少了波纹管的长度,减小了占地面积。
在本发明实施例提供的一种隔离接地开关机构中的的隔离接地开关机构与上述一种开关设备的具体实施例中所述隔离接地开关机构的结构相同,不再赘述。
本发明实施例提供的一种导向触头座中的导向触头座与上述一种开关设备的具体实施例中所述导向触头座的结构相同,不再赘述。
在本发明实施例提供的一种导向触头座中的隔离接地开关机构及使用该隔离开关机构的开关设备其他实施例中,上述实施例中所述绝缘支撑装置还可以是支撑架,当然也可以不设支撑架;防爆装置还可以是防爆阀门;隔离开关动触头上的瓣形触指还可以为弹簧触指;上述电流互感器根据需要还可以是电压互感器;所述接地开关的静触头还可以不集成在导向触头座上,在绝缘支撑筒上另外设置一个接地开关静触头座;上述隔离开关动触头座还可以设置在套体上绝缘拉杆的插入端,此时隔离开关动触头根据实际情况应作出相应的调整;上述隔离接地开关机构也还可以用于固体绝缘开关设备中。
以上所述,仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围。凡按照本发明原理所作的修改,都应当理解为落入本发明的保护范围。

Claims (10)

  1. 一种导向触头座,包括座体和设置在座体上的隔离开关动触头座,所述座体上设有用于在隔离接地开关机构中水平设置的导向孔,导向孔一端的开口用于朝向主回路接入导电结构的接入方向,导向孔的另一端的开口供隔离开关动触头水平插入,所述座体上还设有互感器连接端子。
  2. 根据权利要求1所述的一种导向触头座,其中:所述座体上还设有接地开关静触头座。
  3. 根据权利要求2所述的一种导向触头座,其中:所述座体为圆柱形的套体,所述互感器连接端子与所述接地开关静触头座在所述套体圆周方向上间隔布置。
  4. 根据权利要求3所述的一种导向触头座,其中:所述套体上设有用于安装所述接地开关静触头座的接地开关静触头座安装孔、与所述接地开关静触头座安装孔同轴相对设置用于穿装接地开关动触头的接地开关动触头穿装孔。
  5. 一种隔离接地开关机构,包括外壳、隔离开关、接地开关,隔离开关包括沿设定的轴向并列设置的隔离开关动触头、隔离开关动静触头,所述接地开关包括接地开关动触头、接地开关静触头,所述外壳内设有用于与互感器电连接的互感器连接端子、用于与主回路接入导电结构连接的外接端子,外壳内设有导向触头座,所述导向触头座包括座体和设置在所述座体上的隔离开关动触头座,所述互感器连接端子设置在所述座体上并与所述外壳的壳体连接,所述壳体内还设有与导向触头座沿轴向水平并列布置的连接触头座,所述隔离开关静触头设于所述连接触头座上的朝向所述导向触头座的位置,所述外接端子设于连接触头座上的能够使主回路接入导电结构沿轴向接入的位置,所述座体上设有用于在隔离接地开关机构中水平设置的导向孔,导向孔一端的开口朝向主回路接入导电结构的接入方 向,所述隔离开关动触头沿轴向水平插入导向孔中,所述隔离开关动触头具有合闸工位,所述隔离开关动触头在所述合闸工位与所述连接触头座接触配合。
  6. 根据权利要求5所述一种隔离接地开关机构,其中:所述接地开关静触头设置在所述导向触头座上,所述接地开关动触头与所述接地开关静触头沿垂直于所述轴向的方向对应设置。
  7. 根据权利要求5所述一种隔离接地开关机构,其中:所述外壳内还设有沿轴向延伸用于支撑导向触头座的绝缘支撑筒、与所述隔离开关动触头连接的绝缘拉杆,所述绝缘支撑筒固定在所述外壳上,绝缘拉杆插设在所述绝缘支撑筒内,所述导向触头座固定在所述绝缘支撑筒上。
  8. 根据权利要求7所述一种隔离接地开关机构,其中:所述座体为与绝缘支撑筒固定连接的套体,所述接地开关静触头与互感器连接端子均固设在套体上并沿套体周向间隔设置。
  9. 根据权利要求5至8任一项所述隔离接地开关机构,其中:所述互感器连接端子与壳体柔性电连接。
  10. 一种开关设备,其中:包括权利要求5至9任一项所述隔离接地开关机构。
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CN110335777B (zh) * 2019-07-09 2024-04-30 许继(厦门)智能电力设备股份有限公司 具备开合母线转换电流的隔离开关
CN110473734A (zh) * 2019-08-28 2019-11-19 现代重工(中国)电气有限公司 一种新型船用接地开关
CN113991496A (zh) * 2021-10-29 2022-01-28 广东电网有限责任公司 一种高压配电柱上集成装置
CN113991496B (zh) * 2021-10-29 2023-06-27 广东电网有限责任公司 一种高压配电柱上集成装置

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