CN104158102A - Special tool for assisting in replacement of CT in 10kV switch cabinet and using method thereof - Google Patents
Special tool for assisting in replacement of CT in 10kV switch cabinet and using method thereof Download PDFInfo
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- CN104158102A CN104158102A CN201410443542.6A CN201410443542A CN104158102A CN 104158102 A CN104158102 A CN 104158102A CN 201410443542 A CN201410443542 A CN 201410443542A CN 104158102 A CN104158102 A CN 104158102A
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- fixed contact
- specific purpose
- purpose tool
- side fixed
- switch cubicle
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a special tool for assisting in replacement of a CT in a 10kV switch cabinet and a using method of the tool. The special tool comprises a chassis, an insulated supporting body, door opening guiding bodies and at least one sealing body. The bottom of the insulated supporting body is fixed to the chassis, the two door opening guiding bodies are fixed to the two sides of the lower portion of the insulated supporting body respectively, and the sealing bodies are fixedly arranged on the upper portion of the front side of the insulated supporting body. When the tool is pushed toward a movable door through the chassis, the door opening guiding bodies make contact with the movable door in an abutting mode to trigger opening of the movable door and meanwhile a fixed contact box on the busbar side is sealed by the sealing bodies, and thus the CT can be replaced by operating fixed contacts on the line side. After the special tool is adopted, the current CT to be replaced can be safely replaced just by powering off a feeder interval where the current CT to be replaced is located, the power cut range is shrunken, and maintenance cost is reduced; secondly, after the special tool is adopted, the CT can be replaced just by one person, the situation that when two persons perform cooperative operation, the movable door suddenly falls off by accident, and personal injury and equipment damage are caused is avoided, and working safety and working efficiency are improved.
Description
Technical field
The present invention relates to maintenance of high-voltage switch cabinet field, be specifically related to a kind of specific purpose tool and using method thereof for CT in auxiliary replacement 10kV switch cubicle.
Background technology
Along with being on the increase of industry, house, the continuous increase of user power utilization demand, in early stage high-tension switch cabinet, no-load voltage ratio is 200/5,300/5,400/5 CT (current transformer) can not meet consumers' demand even, need to increase CT and change, the CT that replacing no-load voltage ratio is 600/5.At present, changing CT need to be by whole section of 10kV Generatrix cease, and the repair time needs 8 hours, and interruption duration is long, scope is wide, not only to company, causes load loss, also to user, brings puzzlement simultaneously.
Summary of the invention
The invention provides a kind of specific purpose tool and using method thereof for CT in auxiliary replacement 10kV switch cubicle, it has overcome the deficiencies in the prior art described in background technology.
One of technical scheme adopting that the present invention solves its technical problem is:
Specific purpose tool for CT in auxiliary replacement 10kV switch cubicle, CT mono-side lead is arranged in the line side fixed contact box in switch cubicle, comprise chassis vehicle, insulation support body, two for opening switch cabinet valve open a guide way and at least one obturator of closed switch cabinet bus bar side fixed contact box, the bottom of insulation support body is fixed on chassis vehicle, two open a guide way is separately fixed at both sides, insulation support body bottom, and obturator is installed in the front upper of insulation support body; In the process advancing to valve by chassis vehicle, open a guide way and contact valve and trigger valve and open obturator enclosed busbar side fixed contact box simultaneously, and then operating line trackside fixed contact is changed CT.
Among one embodiment: described in open the concave shape guide way that a guide way is adaptive switch cubicle inwall line channel, it has installed surface and two guiding sides, open a guide way and be locked in insulation support body by installed surface, the front end of two guiding sides extends forward respectively and the opposing spoon of unblanking that is formed for contacting and opening valve to ground part bending.
Among one embodiment: the cover member that described obturator connects bus bar side fixed contact box and seals its opening for lid.
Among one embodiment: described groove is for only having the hollow space cylinder of a bottom surface and side.
Among one embodiment: described obturator comprises three, be respectively used to seal the bus bar side fixed contact box of different phase sequences in three-phase line.
Among one embodiment: described insulation support body be one by after the sphenoid that turns forward.
The present invention solve its technical problem the technical scheme adopting two be:
The using method for the specific purpose tool of CT in auxiliary replacement 10kV switch cubicle as described in one of scheme, comprising:
Step 1, is positioned over specific purpose tool on 10kV transport carriage, is pushed into the test position of cabinet in 10kV switch cubicle, and recycling operating handle advances from test position this specific purpose tool to service position;
Step 2, in the process advancing, the lock-connecting piece that specific purpose tool utilization is opened on a guide way contact valve is opened valve, exposes bus bar side fixed contact box and line side fixed contact box;
Step 3, when specific purpose tool is advanced into service position, obturator seals to isolate charged bus bar side by bus bar side fixed contact box, then line side fixed contact is operated to change CT.
The technical program is compared with background technology, and its tool has the following advantages:
Specific purpose tool for CT in auxiliary replacement 10kV switch cubicle, CT is arranged in the line side fixed contact box in switch cubicle, this specific purpose tool comprise chassis vehicle, insulation support body, two for opening switch cabinet valve open a guide way and at least one obturator of closed switch cabinet bus bar side fixed contact box, in the process advancing to valve by chassis vehicle, open a guide way and contact valve and trigger valve and open obturator enclosed busbar side fixed contact box simultaneously, and then operating line trackside fixed contact is changed CT; Adopt after this specific purpose tool, only need current CT to be replaced place feeder clearance power-off to change safely, dwindled power failure range, the cost of overhaul is reduced, and improves operating efficiency, secondly, adopt after this specific purpose tool, only need one man operation to change, avoid two people's compounding practices accidentally to cause valve landing suddenly to cause the situation of the person, equipment damage, improved job security and operating efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 has illustrated end view of the present invention.
Fig. 2 has illustrated front view of the present invention.
Fig. 3 has illustrated the use figure of the present invention in switch cubicle.
Embodiment
Please refer to Fig. 1 and Fig. 2, specific purpose tool for CT in auxiliary replacement 10kV switch cubicle, CT mono-side lead is arranged in the line side fixed contact box 10 in switch cubicle, this specific purpose tool comprise chassis vehicle 1, insulation support body 2, two for opening switch cabinet valve 30 open a guide way 3 and at least one obturator 4 of closed switch cabinet bus bar side fixed contact box 20.
The bottom of insulation support body 2 is fixed on chassis vehicle 1, and two open a guide way 3 is separately fixed at insulation support body 2 both sides, bottom, and obturator 4 is installed in the front upper of insulation support body 2; In the present embodiment, this insulation support body 2 be one by after the sphenoid that turns forward.
This opens a guide way 3 for the concave shape guide way of adaptive switch cubicle inwall line channel, there are an installed surface 31 and two guiding sides 32, this two opens a guide way 3 and by installed surface 31 separately, is locked in respectively the left and right sides of insulation support body 2 bottoms, and this front end that opens two guiding sides 32 of a guide way 3 extends forward respectively and the opposing spoon 33 of unblanking that is formed for contacting and opening valve to ground part bending.
The cover member that this obturator 4 connects bus bar side fixed contact box and seals its opening for lid, in the present embodiment, this cover member is for only having the hollow space cylinder of an installation bottom surface and all lateral margins.Other structure obturators that can reach sealing isolate bus side fixed contact box also belong to protection scope of the present invention, with cover member, are not limited.In the present embodiment, described obturator 4 comprises three, is respectively used to seal the bus bar side fixed contact box 20 of different phase sequences in three-phase line.
The present invention in use, please refer to Fig. 3, specific purpose tool is positioned on 10kV transport carriage, be pushed into the test position of cabinet in 10kV switch cubicle, utilize operating handle that this specific purpose tool is advanced to service position from test position, the valve 30 to switch cubicle advances, opening a guide way 3 coordinates the guide groove of switch cubicle inwall to advance, in the process advancing, the lock-connecting piece of unblanking on spoon 33 contact valve on a guide way 3 is opened in specific purpose tool utilization, valve is opened, and exposes bus bar side fixed contact box 20 and line side fixed contact box 10; When specific purpose tool is advanced into service position, its obturator 4 will replace valve again by 20 sealings of bus bar side fixed contact box, isolate charged bus bar side, now, line side fixed contact box does not seal, and gets final product the copper bar that operating line trackside fixed contact takes off fixation of C T, changes CT.
Adopt after this specific purpose tool, only need current CT to be replaced place feeder clearance power-off to change safely, dwindled power failure range, it is example that the Yi Guowang Longyan 110kV people of electric company mass uprising 10kV people encircles II line 688 switch gaps, uses after this specific purpose tool, and the operating time that has a power failure can reduce 2 hours, power failure range is by whole section of original bus (average 8 feeder clearances), be reduced to 1 feeder clearance, operating efficiency is improved, and the cost of overhaul is reduced; Secondly, adopt after this specific purpose tool, only need one man operation to change, avoid two people's compounding practices accidentally to cause valve landing suddenly to cause the situation of the person, equipment damage, improved job security and operating efficiency.
The above, only for preferred embodiment of the present invention, therefore can not limit according to this scope of the invention process, the equivalence of doing according to the scope of the claims of the present invention and description changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (6)
1. for the specific purpose tool of CT in auxiliary replacement 10kV switch cubicle, CT mono-side lead is arranged in the line side fixed contact box in switch cubicle, it is characterized in that: comprise chassis vehicle, insulation support body, two for opening switch cabinet valve open a guide way and at least one obturator of closed switch cabinet bus bar side fixed contact box, the bottom of insulation support body is fixed on chassis vehicle, two open a guide way is separately fixed at both sides, insulation support body bottom, and obturator is installed in the front upper of insulation support body; In the process advancing to valve by chassis vehicle, open a guide way and contact valve and trigger valve and open obturator enclosed busbar side fixed contact box simultaneously, and then operating line trackside fixed contact is changed CT.
2. the specific purpose tool for CT in auxiliary replacement 10kV switch cubicle according to claim 1, it is characterized in that: described in open the concave shape guide way that a guide way is adaptive switch cubicle inwall line channel, it has installed surface and two guiding sides, open a guide way and be locked in insulation support body by installed surface, the front end of two guiding sides extends forward respectively and the opposing spoon of unblanking that is formed for contacting and opening valve to ground part bending.
3. the specific purpose tool for CT in auxiliary replacement 10kV switch cubicle according to claim 1, is characterized in that: the cover member that described obturator connects bus bar side fixed contact box and seals its opening for lid.
4. according to the specific purpose tool for CT in auxiliary replacement 10kV switch cubicle described in claim 1 or 3, it is characterized in that: described obturator comprises three, be respectively used to seal the bus bar side fixed contact box of different phase sequences in three-phase line.
5. the specific purpose tool for CT in auxiliary replacement 10kV switch cubicle according to claim 1, is characterized in that: described insulation support body be one by after the sphenoid that turns forward.
6. the using method for the specific purpose tool of CT in auxiliary replacement 10kV switch cubicle as claimed in claim 1, is characterized in that: comprising:
Step 1, is positioned over specific purpose tool on 10kV transport carriage, is pushed into the test position of cabinet in 10kV switch cubicle, and recycling operating handle advances from test position this specific purpose tool to service position;
Step 2, in the process advancing, the lock-connecting piece that specific purpose tool utilization is opened on a guide way contact valve is opened valve, exposes bus bar side fixed contact box and line side fixed contact box;
Step 3, when specific purpose tool is advanced into service position, obturator seals to isolate charged bus bar side by bus bar side fixed contact box, then line side fixed contact is operated to change CT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443542.6A CN104158102A (en) | 2014-09-02 | 2014-09-02 | Special tool for assisting in replacement of CT in 10kV switch cabinet and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443542.6A CN104158102A (en) | 2014-09-02 | 2014-09-02 | Special tool for assisting in replacement of CT in 10kV switch cabinet and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104158102A true CN104158102A (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410443542.6A Pending CN104158102A (en) | 2014-09-02 | 2014-09-02 | Special tool for assisting in replacement of CT in 10kV switch cabinet and using method thereof |
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| CN (1) | CN104158102A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067980A (en) * | 2015-08-11 | 2015-11-18 | 平顶山学院 | High-voltage switch GIS withstand voltage test environment real-time monitoring device |
| CN109244912A (en) * | 2018-10-30 | 2019-01-18 | 国网山东省电力公司潍坊供电公司 | 10kV intermediate switchgear cabinet current transformer replaces specific purpose tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396492Y (en) * | 1999-08-27 | 2000-09-13 | 汕头经济特区南粤电器有限公司 | Front-mounted current transformer for switch cubicle |
| CN204046012U (en) * | 2014-09-02 | 2014-12-24 | 国家电网公司 | A kind of specific purpose tool for CT in auxiliary replacement 10kV switch cubicle |
-
2014
- 2014-09-02 CN CN201410443542.6A patent/CN104158102A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396492Y (en) * | 1999-08-27 | 2000-09-13 | 汕头经济特区南粤电器有限公司 | Front-mounted current transformer for switch cubicle |
| CN204046012U (en) * | 2014-09-02 | 2014-12-24 | 国家电网公司 | A kind of specific purpose tool for CT in auxiliary replacement 10kV switch cubicle |
Non-Patent Citations (1)
| Title |
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| 刘飞: "中置柜出线设备检修防触电小车", 《农业电气化》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067980A (en) * | 2015-08-11 | 2015-11-18 | 平顶山学院 | High-voltage switch GIS withstand voltage test environment real-time monitoring device |
| CN109244912A (en) * | 2018-10-30 | 2019-01-18 | 国网山东省电力公司潍坊供电公司 | 10kV intermediate switchgear cabinet current transformer replaces specific purpose tool |
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Application publication date: 20141119 |