CN202034300U - Breaker of gas insulated metal enclosed switchgear - Google Patents
Breaker of gas insulated metal enclosed switchgear Download PDFInfo
- Publication number
- CN202034300U CN202034300U CN2011201263627U CN201120126362U CN202034300U CN 202034300 U CN202034300 U CN 202034300U CN 2011201263627 U CN2011201263627 U CN 2011201263627U CN 201120126362 U CN201120126362 U CN 201120126362U CN 202034300 U CN202034300 U CN 202034300U
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- contact
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- main contact
- quiet
- connecting lever
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Abstract
The utility model discloses a breaker of gas insulated metal enclosed switchgear. The breaker comprises a fixed contact, a movable contact and an insulating pull rod, wherein the fixed contact and the movable contact can be oppositely combined or separated; one end of the insulating pull rod is connected with the movable contact, and the other end of the insulating pull rod is connected with an external controller; the fixed contact comprises a fixed main contact and a fixed arcing contact; the rod-like fixed arcing contact is axially fixed in the cylindrical fixed main contact; the movable contact comprises a cylindrical movable main contact, a movable arcing contact and a tubular movable contact seat; and after the insulating pull rod penetrates through a pull rod pipeline, one end of the insulating pull rod is fixedly connected with a cylinder bottom in the movable main contact, and the other end of the insulating pull rod is connected with the external controller. Through the breaker, rated loop current and open circuit fault current can be quickly turned off, and arc extinguishing can be effectively performed when a circuit is turned off; and the breaker has a better protection effect on relay equipment.
Description
Technical field
The utility model relates to a kind of circuit switch equipment, relates in particular to a kind of circuit breaker that is used for Cubicle Gas-Insulated Switchgear.
Background technology
In recent years, China SF6 Cubicle Gas-Insulated Switchgear (being called for short GIS) industry fast development, GIS equipment have occupation of land less, advantage such as complete property is strong, be easy to install construction, anti-harsh and unforgiving environments, reliability height, maintenance are little, build high pressure, superhigh pressure transformer station under damp and hot, high height above sea level, harsh and unforgiving environments condition such as high and cold, GIS equipment will be first-selected product.In conjunction with the reality of big city land used anxiety, each country and domestic developed regions are more in the past than construction and the application of whenever all more paying attention to the totally enclosed type modular station.GIS will become most advanced and the most competitive equipment in the domestic and international power transmission and distribution industry switchgear.
Circuit breaker is as the core component of GIS; can cut off or the closed high circuit in no-load current and load current; and the effect by relay protection when system breaks down; can cut off overload electric current and short circuit current, and it have quite perfect arc extinguishing structure and enough cutout abilities.
The utility model content
The purpose of this utility model is to provide a kind of Cubicle Gas-Insulated Switchgear circuit breaker; this circuit breaker can cut-off specified loop current and open circuit fault electric current rapidly; and effective arc extinguishing when circuit disconnects plays the better protect effect to the adaptive polarizing memory voltage time constant device.
The purpose of this utility model can realize by following technical measures:
A kind of Cubicle Gas-Insulated Switchgear circuit breaker comprises combination relatively or the fixed contact and the moving contact that separate, and the insulated tension pole that an end is connected with moving contact, the other end links to each other with peripheral control unit, it is characterized in that:
Described fixed contact comprises quiet main contact and quiet arc contact, and shaft-like quiet arc contact is axially fixed in the quiet main contact of tubular;
Described moving contact comprises the movable contact headstock of moving main contact cylindraceous, moving arcing contact and tubulose, moving its peripheral sliding bearing of main contact of nozzle tubular backwards is on the moving main contact seat front end mouth of pipe of tubulose, described moving main contact seat inwall is provided with bulge loop, described bulge loop is provided with the pull bar pipeline, the mouth of pipe outer rim of described pull bar pipeline is provided with the disk of protrusion, and the inwall of described moving main contact is slidably supported on the described disk outer; Constitute plenum chamber between the inner chamber of described moving main contact and the described disk, have hole (from then on gas discharged arc extinguishing when plenum chamber was calmed the anger) at the bottom of the moving main contact seat tube; Described moving arcing contact is packed in the outer tube of described moving main contact highlightedly at the end, and the diameter of the internal diameter of described moving arcing contact and described quiet arc contact is slidingly matched; After described insulated tension pole ran through described pull bar pipeline, the tube end in an end and the described moving main contact, be fixedly linked, and the other end links to each other with peripheral control unit.
The structure that described quiet arc contact is fixed in the quiet main contact of nozzle tubular forward is: cylindric quiet main contact inwall is provided with the step that ring-type is protruded, and round bar shape quiet arc contact is installed on the described step;
The axis of described quiet main contact, moving main contact, quiet arc contact and described moving arcing contact is located along the same line, described insulated tension pole and peripheral control unit link to each other and controlled drive moving contact in described movable contact headstock, come and go move with fixed contact in conjunction with or separate, described quiet main contact separates earlier with described moving main contact during separation, the quiet arc contact separates with described moving arcing contact afterwards, in conjunction with the time opposite.
Perforate also is provided with nozzle outward at the bottom of the described moving main contact seat tube, and it is horn-like that nozzle is, at the bottom of its bottom is installed on described moving main contact tube, opening is towards described quiet arc contact.
Described nozzle inner walls is provided with the step that ring-type is protruded, and described step internal diameter and described quiet arc contact external diameter are slidingly matched.
Described circuit breaker also comprises support and shell, and described support comprises stationary contact bracket that is used to install described fixed contact and the moving contact rack that is used to install described moving contact, described quiet/moving contact rack is installed on the two ends in the described shell respectively.
Described peripheral control unit comprises motor, connecting lever, connecting rod, outer connecting lever, interior connecting lever and bearing, described connecting lever one end is installed in the rotating shaft of described motor, one end of described connecting rod links to each other with the movable end of described connecting lever, the other end links to each other with described outer connecting lever, described outer connecting lever is in the form of annular discs and have a central rotating shaft, the rotating shaft of described outer connecting lever is installed on the described bearing, an end of connecting lever links to each other with described insulated tension pole tail end in described, in the rotating shaft of other end suit and described outer connecting lever, drive described interior connecting lever when described motor rotates and rotate, finally drive described insulated tension pole and move forward and backward.
The front port place of described quiet main contact is provided with the static contact finger of arranging along port.
The front port place of described moving arcing contact is provided with the static contact finger of arranging along port, and described moving arcing contact periphery is provided with the skim protective sleeve.
The utility model contrast prior art has following advantage:
1, this circuit breaker can cut-off specified loop current and open circuit fault electric current rapidly according to control circuit, and since this circuit breaker disconnect moving/during quiet main contact, the movable contact headstock inner chamber gas of its inner band is compressed, thereby when moving/quiet arc contact disconnects, can produce one gaseous blast and blow to described quiet arc contact, play the effect of effective arc extinguishing, therefore, this circuit breaker can play the better protect effect to the adaptive polarizing memory voltage time constant device;
2, this circuit breaker can be made as single-phase or the Multiphase Parallel structure, thereby turn-offs three road electric currents simultaneously;
3, this circuit breaker has the shell of insulation, prevents electric leakage, and is safer.
Description of drawings
Fig. 1 is the structural representation of Cubicle Gas-Insulated Switchgear circuit breaker of the present utility model when "on" position;
Fig. 2 is the structural representation of Cubicle Gas-Insulated Switchgear circuit breaker of the present utility model when gate-dividing state;
Fig. 3 is the structural representation of the fixed contact part of circuit breaker shown in Figure 1;
Fig. 4 is the front end enlarged diagram of fixed contact shown in Figure 3;
Fig. 5 is the structural representation of the moving contact part of circuit breaker shown in Figure 1;
Fig. 6 is the front end enlarged diagram of moving contact shown in Figure 5;
Fig. 7 is the overall structure end view on circuit breaker installation shown in Figure 1 and the frame;
Fig. 8 is the end view that circuit breaker of the present utility model is configured to three-phase interlock circuit breaker.
Embodiment
Fig. 1 to Fig. 8 shows the overall structure of Cubicle Gas-Insulated Switchgear circuit breaker of the present utility model and this circuit breaker is configured as the overall structure of three-phase interlock circuit breaker, and the structure of a wherein independent circuit breaker comprises fixed contact 1, moving contact 2, insulated tension pole 3 and nozzle 4.
Fixed contact 1 comprises quiet main contact 11 and quiet arc contact 12, and shaft-like quiet arc contact 12 is axially fixed in the quiet main contact 11 of tubular: cylindric quiet main contact 11 inwalls are provided with the step that ring-type is protruded, and round bar shape quiet arc contact 12 is installed on the step 112;
Moving contact 2 comprises the movable contact headstock 23 of moving main contact 21 cylindraceous, moving arcing contact 22 and tubulose, moving main contact 21 its peripheral sliding bearings of nozzle tubular backwards are on the moving main contact seat 23 front end mouths of pipe of tubulose, moving main contact seat 23 inwalls are provided with bulge loop 231, bulge loop 231 is provided with pull bar pipeline 31, the mouth of pipe outer rim of pull bar pipeline 31 is provided with the disk 32 of protrusion, and the inwall of moving main contact 21 is slidably supported on the disk outer; Constitute plenum chamber between the inner chamber of moving main contact and the disk, have hole 212 at the bottom of the moving main contact seat tube, the position in hole 212 is opened between moving arcing contact 21 and the nozzle 4, and gas hole discharging from then on sprayed to quiet arc contact 12 when plenum chamber 210 was calmed the anger, and then arc extinguishing; Moving arcing contact 22 is packed in highlightedly at the end 211 of moving outside the main contact 21, and the diameter of the internal diameter of moving arcing contact 21 and quiet arc contact 12 is slidingly matched; After insulated tension pole 3 ran through pull bar pipeline 31, the tube end 211 in an end and the moving main contact 21, be fixedly linked, and the other end links to each other with peripheral control unit.
The structure that quiet arc contact 12 is fixed in the quiet main contact 11 of nozzle tubular forward is:
Quiet main contact 11, moving main contact 21, quiet arc contact 12 are located along the same line with the axis of moving arcing contact 22, insulated tension pole 3 and peripheral control unit link to each other and controlled drive moving contact in the movable contact headstock 23 come and go move with fixed contact in conjunction with or separate, quiet main contact 11 separates earlier with moving main contact 21 during separation, quiet arc contact 12 separates with moving arcing contact 22 afterwards, in conjunction with the time opposite.
211 perforate 212 is outer at the bottom of 21 of the moving main contacts also is provided with nozzle 4, and nozzle 4 is horn-like, and its bottom is installed at the bottom of the moving main contact tube 211, opening is towards quiet arc contact 12.Nozzle 4 inwalls are provided with the step 41 that ring-type is protruded, and step 41 internal diameters and quiet arc contact 12 external diameters are slidingly matched.
The front port place of quiet main contact 11 is provided with the static contact finger of arranging along port 111, receives in the port of static contact finger 111, can make that conduction was good when moving main contact 21 joined with quiet main contact 11.The front port place of moving arcing contact 22 also is provided with the fingertip of arranging along port 221, receives in the port of fingertip 221, can make that conduction was good when quiet arc contact 12 and moving arcing contact 22 joined.Dynamic and static arcing contact is selected extraordinary copper-tungsten (Cu-W) manufacturing for use, and the restriction that not raise by excessive temperature guarantees excellent conducting performance.Therefore this structure needn't be changed and Awaiting Parts continually, and is provided long useful life.
Moving arcing contact 22 peripheries are provided with skim protective sleeve 222.Nozzle 4 inwalls are provided with the step 41 that ring-type is protruded, and nozzle step 41 internal diameters and quiet arc contact 12 external diameters are slidingly matched.
This circuit breaker also comprises support and shell 6, and support comprises the moving contact rack 52 that is used to that the stationary contact bracket 51 of fixed contact is installed and is used to install moving contact, and quiet/moving contact rack 51,52 is installed on the two ends in the shell 6 respectively.The shell 6 of circuit breaker is made for insulating material.
Circuit breaker also comprises the transmission mechanism 7 that is used to control the insulated tension pole motion, it comprises motor, connecting lever 71, connecting rod 72, outer connecting lever 73, interior connecting lever 74 and bearing 75, motor links to each other with external control circuit, external control circuit is according to the unlatching and the running of real-time condition control motor, connecting lever 71 is set in the rotating shaft of motor, one end of connecting rod 72 links to each other with the movable end of connecting lever 71, the other end links to each other with outer connecting lever 73, outer connecting lever 73 is in the form of annular discs and have a central rotating shaft, the rotating shaft of outer connecting lever 73 is installed on the bearing, one end of interior connecting lever 74 links to each other with insulated tension pole 3 tail ends, in the rotating shaft of other end suit and outer connecting lever 3, connecting lever 2 rotates in driving when motor rotates, the final insulated tension pole 2 that drives moves forward and backward, and in order to make moving contact 2 steadily to move horizontally, can increase by a connecting rod between moving contact 1 and insulated tension pole 3, one end of connecting rod was fixedlyed connected with the tube end 211 of moving main contact 21, and it is hinged with insulated tension pole 3 that the other end passes pull bar pipeline 31.
The circuit breaker course of work of the present utility model is as follows: breaker open operation mainly is the transmission by insulated tension pole, makes moving arcing contact and the disjunction of quiet arc contact, moving main contact and quiet main contact disjunction, and the process of effective arc extinguishing.Be subdivided into following four steps:
1, the pulling of insulated tension pole 3, make moving contact 21 move to movable contact headstock 23 directions, this moment moving main contact 21 and at first disjunction of quiet main contact 11, moving arcing contact 22 still is in the splice grafting state with quiet arc contact 12, moving main contact inner chamber (being plenum chamber 210) forms the effect of air cylinder, and gas begins compression in it;
2, moving arcing contact 22 and 12 disjunctions of quiet arc contact produce electric arc, and quiet arc contact 12 still is inserted in the nozzle 4, and this moment, plenum chamber 210 interior gases significantly compressed;
3, quiet arc contact 12 separates with nozzle 4, and electric arc is vertically blown in the gas ejection in the plenum chamber 210, impels arc extinction;
4, arc extinction, electric current is cut-off, and gas is released in the plenum chamber 210, and circuit breaker is in the separating brake position, and the separating brake action is finished.
Figure 8 shows that the structural representation of three-phase breaker, three circuit breakers 101,102 and 103 of the present utility model are arranged in parallel in circuit, thereby it is electric-linked to carry out three-phase, also can carry out the phase-splitting operation.Branch, combined floodgate by the control of convergence control cabinet independently circuit breaker.
Execution mode of the present utility model is not limited thereto; under the above-mentioned basic fundamental thought of the utility model prerequisite;, all drop within the utility model rights protection scope modification, replacement or the change of the utility model other various ways that content is made according to the ordinary skill knowledge of this area and customary means.
Claims (8)
1. a Cubicle Gas-Insulated Switchgear circuit breaker comprises combination relatively or the fixed contact and the moving contact that separate, and the insulated tension pole that an end is connected with moving contact, the other end links to each other with peripheral control unit, it is characterized in that:
Described fixed contact comprises quiet main contact and quiet arc contact, and shaft-like quiet arc contact is axially fixed in the quiet main contact of tubular;
Described moving contact comprises the movable contact headstock of moving main contact cylindraceous, moving arcing contact and tubulose, moving its peripheral sliding bearing of main contact of nozzle tubular backwards is on the moving main contact seat front end mouth of pipe of tubulose, described moving main contact seat inwall is provided with bulge loop, described bulge loop is provided with the pull bar pipeline, the mouth of pipe outer rim of described pull bar pipeline is provided with the disk of protrusion, and the inwall of described moving main contact is slidably supported on the described disk outer; Constitute plenum chamber between the inner chamber of described moving main contact and the described disk, have the hole at the bottom of the moving main contact seat tube; Described moving arcing contact is packed in the outer tube of described moving main contact highlightedly at the end, and the diameter of the internal diameter of described moving arcing contact and described quiet arc contact is slidingly matched; After described insulated tension pole ran through described pull bar pipeline, the tube end in an end and the described moving main contact, be fixedly linked, and the other end links to each other with peripheral control unit.
2. Cubicle Gas-Insulated Switchgear circuit breaker according to claim 1, it is characterized in that: the structure that described quiet arc contact is fixed in the quiet main contact of nozzle tubular forward is: cylindric quiet main contact inwall is provided with the step that ring-type is protruded, and round bar shape quiet arc contact is installed on the described step; The axis of described quiet main contact, moving main contact, quiet arc contact and described moving arcing contact is located along the same line.
3. Cubicle Gas-Insulated Switchgear circuit breaker according to claim 2, it is characterized in that: perforate also is provided with nozzle outward at the bottom of the described moving main contact seat tube, it is horn-like that nozzle is, at the bottom of its bottom is installed on described moving main contact tube, opening is towards described quiet arc contact.
4. according to claim 2 or 3 described Cubicle Gas-Insulated Switchgear circuit breakers, it is characterized in that: described nozzle inner walls is provided with the step that ring-type is protruded, and described step internal diameter and described quiet arc contact external diameter are slidingly matched.
5. Cubicle Gas-Insulated Switchgear circuit breaker according to claim 4, it is characterized in that: described circuit breaker also comprises support and shell, described support comprises stationary contact bracket that is used to install described fixed contact and the moving contact rack that is used to install described moving contact, described quiet/moving contact rack is installed on the two ends in the described shell respectively.
6. Cubicle Gas-Insulated Switchgear circuit breaker according to claim 5, it is characterized in that: described peripheral control unit comprises motor, connecting lever, connecting rod, outer connecting lever, interior connecting lever and bearing, described connecting lever one end is installed in the rotating shaft of described motor, one end of described connecting rod links to each other with the movable end of described connecting lever, the other end links to each other with described outer connecting lever, described outer connecting lever is in the form of annular discs and have a central rotating shaft, the rotating shaft of described outer connecting lever is installed on the described bearing, an end of connecting lever links to each other with described insulated tension pole tail end in described, in the rotating shaft of other end suit and described outer connecting lever, drive described interior connecting lever when described motor rotates and rotate, finally drive described insulated tension pole and move forward and backward.
7. Cubicle Gas-Insulated Switchgear circuit breaker according to claim 6 is characterized in that: the front port place of described quiet main contact is provided with the static contact finger of arranging along port.
8. according to claim 6 or 7 described Cubicle Gas-Insulated Switchgear circuit breakers, the front port place of the described moving arcing contact of its feature is provided with the static contact finger of arranging along port, and described moving arcing contact periphery is provided with the skim protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201263627U CN202034300U (en) | 2011-04-26 | 2011-04-26 | Breaker of gas insulated metal enclosed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201263627U CN202034300U (en) | 2011-04-26 | 2011-04-26 | Breaker of gas insulated metal enclosed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202034300U true CN202034300U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201263627U Expired - Lifetime CN202034300U (en) | 2011-04-26 | 2011-04-26 | Breaker of gas insulated metal enclosed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202034300U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057568A (en) * | 2016-07-07 | 2016-10-26 | 山东泰开高压开关有限公司 | Composite insulation pillar type SF6 breaker |
| CN107068472A (en) * | 2017-06-07 | 2017-08-18 | 河南森源电气股份有限公司 | The single-phase pole of sulfur hexafluoride breaker, sulfur hexafluoride breaker and switch cubicle |
| US10199189B2 (en) | 2012-02-16 | 2019-02-05 | Siemens Aktiengesellschaft | Switchgear arrangement |
| CN110993390A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Switch structure with switching-on and switching-off assisting and buffering functions |
| CN110993431A (en) * | 2019-10-31 | 2020-04-10 | 特变电工中发上海高压开关有限公司 | Novel arc extinguishing contact structure of high-voltage switch SF6 gas arc extinguishing chamber |
| CN111357074A (en) * | 2017-11-10 | 2020-06-30 | 株式会社东芝 | Gas circuit breaker |
| CN111801757A (en) * | 2017-10-12 | 2020-10-20 | 通贝国际有限公司 | Solid dielectric front side uncharged electrical switching assembly |
| WO2023137644A1 (en) * | 2022-01-19 | 2023-07-27 | Hitachi Energy Switzerland Ag | Fixed contact assembly, arc extinguish chamber, and high voltage circuit breaker |
-
2011
- 2011-04-26 CN CN2011201263627U patent/CN202034300U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10199189B2 (en) | 2012-02-16 | 2019-02-05 | Siemens Aktiengesellschaft | Switchgear arrangement |
| CN106057568A (en) * | 2016-07-07 | 2016-10-26 | 山东泰开高压开关有限公司 | Composite insulation pillar type SF6 breaker |
| CN106057568B (en) * | 2016-07-07 | 2019-04-23 | 山东泰开高压开关有限公司 | A kind of compound inslation column support type SF6 breaker |
| CN107068472A (en) * | 2017-06-07 | 2017-08-18 | 河南森源电气股份有限公司 | The single-phase pole of sulfur hexafluoride breaker, sulfur hexafluoride breaker and switch cubicle |
| CN111801757A (en) * | 2017-10-12 | 2020-10-20 | 通贝国际有限公司 | Solid dielectric front side uncharged electrical switching assembly |
| CN111357074A (en) * | 2017-11-10 | 2020-06-30 | 株式会社东芝 | Gas circuit breaker |
| CN111357074B (en) * | 2017-11-10 | 2021-12-24 | 株式会社东芝 | Gas circuit breaker |
| CN110993431A (en) * | 2019-10-31 | 2020-04-10 | 特变电工中发上海高压开关有限公司 | Novel arc extinguishing contact structure of high-voltage switch SF6 gas arc extinguishing chamber |
| CN110993390A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Switch structure with switching-on and switching-off assisting and buffering functions |
| WO2023137644A1 (en) * | 2022-01-19 | 2023-07-27 | Hitachi Energy Switzerland Ag | Fixed contact assembly, arc extinguish chamber, and high voltage circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |
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| CX01 | Expiry of patent term |