CN101728780B - Grounding device of metal-clad moveable high-voltage switchgear - Google Patents
Grounding device of metal-clad moveable high-voltage switchgear Download PDFInfo
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- CN101728780B CN101728780B CN2009102514456A CN200910251445A CN101728780B CN 101728780 B CN101728780 B CN 101728780B CN 2009102514456 A CN2009102514456 A CN 2009102514456A CN 200910251445 A CN200910251445 A CN 200910251445A CN 101728780 B CN101728780 B CN 101728780B
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- ground connection
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- guide rail
- grounding
- metal
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Abstract
The invention discloses a grounding device of a metal-clad moveable high-voltage switchgear, which comprises a handcart (1) and guide rails (3) arranged on a body of a switchgear for the handcart (1) to run on, wherein the handcart (1) and the grounding device of the high-voltage switchgear adopt a clamp type connection structure. According to the technical scheme, when the handcart is swung to a work position from a test position by a swing mechanism, the grounded connection structures are tightly occluded together in a gliding process or a work state, so the contact resistance is greatly reduced, the safety of operators is further guaranteed and the requirements on electric grounding safety of the switchgear are completely met. The combined use of a plurality of grounding ways makes the grounding performance of the grounding device of the metal-clad moveable high-voltage switchgear; and the plurality of grounding ways can be freely and flexibly selected.
Description
Technical field
The invention belongs to the technical field of power equipment, relate to the structure of power switch cabinet, more particularly, the present invention relates to a kind of grounding device of metal-clad moveable high-voltage switchgear.
Background technology
In electric power system at present, the development of existing metal-clad moveable formula high voltage switchgear report, its 26S Proteasome Structure and Function also is not quite similar.Its high voltage switchgear all adopts the armored withdraw type of the PT handcart of joining vacuum circuit-breaker, detecting busbar voltage to exchange sealing switch equipment.
Handcart is the critical piece in the withdrawable switch cubicle, and PT handcart and switch (circuit breaker) handcart etc. is generally arranged.Handcart is dolly again, is example with the switch handcart, under the situation of switch disjunction, spread guide rail after available hand it is extracted out from switch cubicle so that overhaul or change.Because of can be with pulling out, and the similar handcart of shape, so be called handcart.Main element on the handcart has electric equipments such as circuit breaker, instrument transformer.It has three positions in switch cubicle: work, test and disconnection.No matter, all require it that good ground connection performance is arranged, ensure safety in production in which kind of position.Particularly in slipping, how to guarantee that good ground connection is an important problems.
But in the prior art, its cabinet earthing device, the structure more complicated has plenty of by four wheels and the contacted mode of cabinet on circuit breaker or the PT handcart chassis, and this earthing mode earth resistance is very big, and operating personnel are constituted potential safety hazard.
Summary of the invention
Problem to be solved by this invention provides a kind of grounding device of metal-clad moveable high-voltage switchgear, its objective is safety, the reliable ground of realizing switch, guarantees production safety.
To achieve these goals, the technical scheme taked of the present invention is:
Grounding device of metal-clad moveable high-voltage switchgear provided by the present invention, comprise the guide rail that is provided for the handcart operation on the cabinet of handcart, described high-tension switch cabinet, the syndeton of employing slippage clamping type between described handcart and the described high-tension switch cabinet earthing device.
One of concrete technical scheme:
Establish guide rail ground connection copper bar on the described guide rail, described guide rail ground connection copper bar is parallel with described guide rail, establish the duck-beak type grounding contact on the described handcart, establish the elastic clip locking structure on the described duck-beak type grounding contact, by described elastic clip locking structure, described duck-beak type grounding contact is clipped on the described guide rail ground connection copper bar.Described handcart is the circuit breaker dolly, and described duck-beak type grounding contact is connected with the circuit breaker dolly by bolt; Described guide rail is connected with main ground connection row by earthing conductor; The end of described guide rail be provided with guide plate; Described guide rail ground connection copper bar and described guide rail adopt the riveted joint syndeton.
Two of concrete technical scheme:
The front end of described handcart is established the moving plug of ground connection, and elasticity duck-beak type contact is set on the cabinet of described high-tension switch cabinet, runs at handcart under the state of service position, and described elasticity duck-beak type contact is clamped the moving plug of ground connection under the effect of elastic force.
Three of concrete technical scheme:
The cabinet handcart chamber of described high-tension switch cabinet is equipped with the middle level dividing plate, on the dividing plate of described middle level, establish dividing plate ground connection row, described dividing plate ground connection row's direction is consistent with the traffic direction of handcart, establish ground connection elastic pressure contact on the described handcart, described ground connection elastic pressure contact is clipped in described dividing plate ground connection row.
Four of concrete technical scheme:
On the cabinet of car bottom, described handcart chassis friction-type ground connection copper bar is installed, the direction of described friction-type ground connection copper bar is consistent with the traffic direction of handcart, establish the friction grounding contact on described handcart, described friction grounding contact closely contacts with described friction-type ground connection copper bar under pressure.
The present invention adopts technique scheme, handcart is when shaking that into mechanism shakes the service position with it from test position, the syndeton of ground connection is in sliding process or in the operating state, all be interlocked closely, greatly reduce contact resistance like this, fully ensure operating personnel's safety, satisfy the electrical grounding safety requirements of switch cubicle fully.Being used in combination of above-described multiple ground connection connected mode makes the ground connection performance of metal-clad moveable formula high voltage switchgear more superior, and multiple earthing mode can free as required, selection flexibly.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 adopts the structural representation of guide rail ground connection for the present invention;
Fig. 2 is the guide rail front schematic view among Fig. 1;
Fig. 3 is the side schematic view of structure shown in Figure 2;
Fig. 4 is the circuit breaker dolly schematic diagram among the present invention;
Fig. 5 is flexible coupling and the guide rail connection diagram for of the present invention.
Fig. 6 is preceding dividing plate ground structure schematic diagram for the present invention adopts;
Fig. 7 is the front schematic view of elasticity duck-beak type structure of contact terminal shown in Figure 6;
Fig. 8 is that handcart chassis car front end is installed duck-beak type ground connection moving contact side schematic view among Fig. 6;
Fig. 9 is the middle level diaphragm structure schematic diagram among the present invention;
Figure 10 is the schematic top plan view of structure shown in Figure 9;
Figure 11 is the structural representation of the elastic pressure contact that is connected with dividing plate ground connection row among Figure 10;
Figure 12 is provided with the schematic diagram of friction-type ground structure for the middle level dividing plate among the present invention;
Figure 13 is for being the schematic diagram of structure shown in Figure 12;
Figure 14 is the structural representation of the friction-type ground connection copper bar among the present invention.
Be labeled as among the figure:
1, circuit breaker dolly, 2, the duck-beak type grounding contact, 3, guide rail, 4, guide rail ground connection copper bar, 5, earthing conductor, 6, guide plate, 7, guide plate, 8, main ground connection row, 9, the moving plug of ground connection, 10, elasticity duck-beak type contact, 11, middle level dividing plate, 12, dividing plate ground connection row, 13, the elastic pressure contact, 14, friction-type ground connection copper bar, 15, the friction grounding contact.
Embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and operation principle, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present invention, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present invention structure expressed as Fig. 1 to Figure 14, the present invention is a kind of grounding device of metal-clad moveable high-voltage switchgear, comprises the guide rail 3 that is provided for handcart 1 operation on the cabinet of handcart 1, described high-tension switch cabinet.
To achieve these goals, the technical scheme taked of the present invention is:
Grounding device of metal-clad moveable high-voltage switchgear provided by the present invention, the syndeton of employing slippage clamping type between described handcart 1 and the described high-tension switch cabinet earthing device.
Earthing device adopts the syndeton of slippage clamping type can guarantee that good conductor connects, and reduces to connect resistance, improves the ground connection effect, guarantees safety.Particularly in slipping, remain the excellent contact state, prevent the inefficacy of ground connection.
Be exemplifying embodiment of the present invention below:
Embodiment one:
Extremely shown in Figure 5 as Fig. 1, establish guide rail ground connection copper bar 4 on the guide rail 3 of the present invention, described guide rail ground connection copper bar 4 is parallel with described guide rail 3, establish duck-beak type grounding contact 2 on the described handcart 1, establish the elastic clip locking structure on the described duck-beak type grounding contact 2, by described elastic clip locking structure, described duck-beak type grounding contact 2 is clipped on the described guide rail ground connection copper bar 4.
Duck-beak type grounding contact 2 is for having the pincerlike structure of elastic clip locking structure, and jaw presss from both sides on the guide rail ground connection copper bar 4.It is as follows to have formed a perfect ground path:
Duck-beak type grounding contact 2---the main ground connection row 8 of guide rail ground connection copper bar 4---earthing conductor 5---.
The both sides duck-beak type earthing mode of handcart 1 is cooperated by duck-beak type grounding contact 2 and guide rail ground connection copper bar 4 to be finished, handcart 1 by test position in the sliding process of service position and when arriving the service position, duck-beak type grounding contact 2 and guide rail ground connection copper bar 4 closely are interlocked, and have guaranteed the good earth of switchgear.
Described left and right two guide rails 3 are provided with installing hole, are securely fixed on the cabinet.
Described handcart 1 is the circuit breaker dolly, and described duck-beak type grounding contact 2 is connected with the circuit breaker dolly by bolt.Be fastenedly connected by two Φ 6 bolts and circuit breaker dolly chassis.
As shown in Figure 5, guide rail 3 wherein is connected with main ground connection row 8 by earthing conductor 5.Described earthing conductor 5 is the conductor that is flexible coupling.
As shown in Figure 2, the end of described guide rail 3 is provided with guide plate 6, guide plate 7.Guide plate 6, guide plate 7 are used for supporting the slider roller of circuit breaker dolly.Guide plate 6, guide plate 7 match with location hole on the contact box mounting panel.
Described left and right guide rail 3 rear ends are provided with the handcart location hole.
Location hole matches on the guide locating device provided and contact box mounting panel of guide rail 3 front ends, and the handcart location hole of rear end matches with handcart location hole on the cabinet.
Above-mentioned guide rail ground connection copper bar 4 adopts the riveted joint syndeton with described guide rail 3.Improve the reliability and the electric conductivity that connect.
Embodiment two:
As Fig. 6, Fig. 7 and shown in Figure 8, the present invention adopts preceding duck-beak type earthing mode:
The front end that is described handcart 1 is established the moving plug 9 of ground connection, elasticity duck-beak type contact 10 is set on the cabinet of described high-tension switch cabinet, run at handcart 1 under the state of service position, described elasticity duck-beak type contact 10 is clamped the moving plug 9 of ground connection under the effect of elastic force.
Its preceding duck-beak type earthing mode is cooperated by elasticity duck-beak type contact 10 and the moving plug 9 of ground connection to be finished, and the moving plug 9 of elasticity duck-beak type contact 10 and ground connection adopts two pairs.Handcart 1 is when arriving the service position, and the moving plug 9 of elasticity duck-beak type contact 10 and ground connection closely is interlocked, and has guaranteed the good earth of switchgear.
Embodiment three:
As Fig. 9, Figure 10 and shown in Figure 11, the present invention adopts spring static pressure type earthing mode:
The cabinet handcart chamber that is described high-tension switch cabinet is equipped with middle level dividing plate 11, on described middle level dividing plate 11, establish dividing plate ground connection row 12, described dividing plate ground connection row's 12 direction is consistent with the traffic direction of handcart 1, establish ground connection elastic pressure contact 13 on the described handcart 1, described ground connection elastic pressure contact 13 is clipped in described dividing plate ground connection row 12.
Its spring static pressure type earthing mode is cooperated by ground connection elastic pressure contact 13 and dividing plate ground connection row 12 to be finished, and adopts 12 and two ground connection elastic pressure contacts of two dividing plate ground connection rows 13 to constitute two pairs.Handcart 1 by test position in the sliding process of service position and when arriving the service position, ground connection elastic pressure contact 13 closely overlays with dividing plate ground connection row 12 is in the same place, and has guaranteed the good earth of switchgear.
Four of concrete technical scheme:
As Figure 12, Figure 13 and shown in Figure 14, the present invention adopts copper bar friction grounding mode:
Be on the cabinet of car bottom, described handcart chassis friction-type ground connection copper bar 14 to be installed, the direction of described friction-type ground connection copper bar 14 is consistent with the traffic direction of handcart 1, establish friction grounding contact 15 on described handcart 1, described friction grounding contact 15 closely contacts with described friction-type ground connection copper bar 14 under pressure.
Its copper bar friction grounding mode is cooperated by friction-type ground connection copper bar 14 and friction grounding contact 15 to be finished, and friction-type ground connection copper bar 14 and friction grounding contact 15 respectively are two, constitute two pairs.Handcart 1 by test position in the sliding process of service position and when arriving the service position, friction-type ground connection copper bar 14 closely overlays with friction grounding contact 15 is in the same place, and has guaranteed the good earth of switchgear.
The foregoing description one to embodiment four can be selected one and use, and also can adopt different compound modes to select multiple application simultaneously, improves the ground connection effect.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (8)
1. grounding device of metal-clad moveable high-voltage switchgear, comprise the guide rail (3) that is provided for handcart (1) operation on the cabinet of handcart (1), described high-tension switch cabinet, described handcart (1) and described high-tension switch cabinet earthing device adopt the syndeton of slippage clamping type;
It is characterized in that:
The syndeton of described slippage clamping type is: the front end of described handcart (1) is established the moving plug (9) of ground connection, elasticity duck-beak type contact (10) is set on the cabinet of described high-tension switch cabinet, run under the state of service position at handcart (1), described elasticity duck-beak type contact (10) is clamped the moving plug (9) of ground connection under the effect of elastic force.
2. according to the described grounding device of metal-clad moveable high-voltage switchgear of claim 1, it is characterized in that: establish guide rail ground connection copper bar (4) on the described guide rail (3), described guide rail ground connection copper bar (4) is parallel with described guide rail (3), establish duck-beak type grounding contact (2) on the described handcart (1), establish the elastic clip locking structure on the described duck-beak type grounding contact (2), by described elastic clip locking structure, described duck-beak type grounding contact (2) is clipped on the described guide rail ground connection copper bar (4).
3. according to the described grounding device of metal-clad moveable high-voltage switchgear of claim 1, it is characterized in that: the cabinet handcart chamber of described high-tension switch cabinet is equipped with middle level dividing plate (11), on described middle level dividing plate (11), establish dividing plate ground connection row (12), described dividing plate ground connection row's (12) direction is consistent with the traffic direction of handcart (1), establish ground connection elastic pressure contact (13) on the described handcart (1), described ground connection elastic pressure contact (13) is clipped in described dividing plate ground connection row (12).
4. according to the described grounding device of metal-clad moveable high-voltage switchgear of claim 1, it is characterized in that: on the cabinet of car bottom, described handcart chassis friction-type ground connection copper bar (14) is installed, the direction of described friction-type ground connection copper bar (14) is consistent with the traffic direction of handcart (1), establish friction grounding contact (15) on described handcart (1), described friction grounding contact (15) closely contacts with described friction-type ground connection copper bar (14) under pressure.
5. according to the described grounding device of metal-clad moveable high-voltage switchgear of claim 2, it is characterized in that: described handcart (1) is the circuit breaker dolly, and described duck-beak type grounding contact (2) is connected with the circuit breaker dolly by bolt.
6. according to the described grounding device of metal-clad moveable high-voltage switchgear of claim 2, it is characterized in that: described guide rail (3) is arranged (8) by earthing conductor (5) with main ground connection and is connected.
7. according to the described grounding device of metal-clad moveable high-voltage switchgear of claim 2, it is characterized in that: the end of described guide rail (3) is provided with guide plate (6,7).
8. according to the described grounding device of metal-clad moveable high-voltage switchgear of claim 2, it is characterized in that: described guide rail ground connection copper bar (4) adopts the riveted joint syndeton with described guide rail (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102514456A CN101728780B (en) | 2009-12-21 | 2009-12-21 | Grounding device of metal-clad moveable high-voltage switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102514456A CN101728780B (en) | 2009-12-21 | 2009-12-21 | Grounding device of metal-clad moveable high-voltage switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101728780A CN101728780A (en) | 2010-06-09 |
| CN101728780B true CN101728780B (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102514456A Expired - Fee Related CN101728780B (en) | 2009-12-21 | 2009-12-21 | Grounding device of metal-clad moveable high-voltage switchgear |
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| CN (1) | CN101728780B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290729B (en) * | 2011-04-30 | 2013-09-25 | 山东泰开成套电器有限公司 | Handcart grounding device of switch cabinet |
| CN102882147A (en) * | 2012-09-24 | 2013-01-16 | 无锡双力电力设备有限公司 | Guide rail type grounding device for high-tension switch cabinet |
| CN106129853A (en) * | 2016-07-21 | 2016-11-16 | 新疆特变电工自控设备有限公司 | A kind of breaker of switch cabinet access and exit control mechanism |
| CN108551109B (en) * | 2018-04-27 | 2024-01-05 | 广东电网有限责任公司 | Safety clamp and high-voltage switch cabinet |
| CN110247329A (en) * | 2019-07-21 | 2019-09-17 | 厦门威尔圣电气股份有限公司 | A kind of three spindle guides are to breaker cabinet |
| CN113381330B (en) * | 2021-05-11 | 2024-06-25 | 国网浙江省电力有限公司台州市路桥区供电公司 | Electric shock preventing device for overhauling compartment of breaker of centrally-mounted handcart type switch cabinet |
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2009
- 2009-12-21 CN CN2009102514456A patent/CN101728780B/en not_active Expired - Fee Related
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| CN101728780A (en) | 2010-06-09 |
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Address after: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District Road No. 118 Patentee after: ANHUI ZHONGDIAN XINGFA AND XINLONG TECHNOLOGY CO., LTD. Address before: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District Road No. 118 Patentee before: Xinlong Electric-Appliance Co., Ltd., Anhui |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20171221 |