CN204302314U - Lightweight grading ring is used in a kind of high voltage electric equipment test - Google Patents

Lightweight grading ring is used in a kind of high voltage electric equipment test Download PDF

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Publication number
CN204302314U
CN204302314U CN201420760726.0U CN201420760726U CN204302314U CN 204302314 U CN204302314 U CN 204302314U CN 201420760726 U CN201420760726 U CN 201420760726U CN 204302314 U CN204302314 U CN 204302314U
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CN
China
Prior art keywords
lightweight
support bar
cyclic skeleton
grading ring
fixed block
Prior art date
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Expired - Fee Related
Application number
CN201420760726.0U
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Chinese (zh)
Inventor
赵建利
张鹏
陈波
于鲜莉
白全新
赵雷
曹斌
王琼
李波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRANCH Co OF INNER MONGOLIA ELECTRIC POWER SCIENCE SEARCH INSTITUTE INNER MONGOLIA POWER (GROUP) Co Ltd
Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
Original Assignee
BRANCH Co OF INNER MONGOLIA ELECTRIC POWER SCIENCE SEARCH INSTITUTE INNER MONGOLIA POWER (GROUP) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201420760726.0U priority Critical patent/CN204302314U/en
Application granted granted Critical
Publication of CN204302314U publication Critical patent/CN204302314U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of high voltage electric equipment test lightweight grading ring, comprise cyclic skeleton and center support; Described center support comprises support bar and fixed block, and one end and the fixed block of described support bar are hinged, apical grafting inside the other end of described support bar and cyclic skeleton, and cyclic skeleton is supported to ring-type, and the quantity of described support bar is at least 3; Described fixed block is connected with electrical equipment; The length of described support bar is greater than the inside radius of annular support and is less than the outer radius of annular support; One deck skin material is covered outside described lightweight grading ring; Described skin material is carbon fiber textile cloth or aramid fiber stainless steel fibre blended cloth.Adopt the cyclic skeleton of lightweight and the support bar that can draw in, lightweight, launch convenient, mounting means is flexible, not only reduce operation easier, and save the operating time; Meanwhile, reduce the space requirement to conveying arrangement, and decrease the dependence to boom hoisting.

Description

Lightweight grading ring is used in a kind of high voltage electric equipment test
Technical field
The utility model relates to a kind of high voltage electric equipment accessory, particularly a kind of high voltage electric equipment test lightweight grading ring.
Background technology
At present, be all adopt aluminum or stainless steel grading ring to carry out uniform electric field in high voltage electric equipment test, reduce corona interference.Particularly in local discharge test, grading ring must be used; In withstand voltage test, for reducing corona loss, in more than 100kV withstand voltage test, also grading ring will be used.By the restriction of electric field coefficient of uniformity, grading ring must possess certain volume, and with grading ring under general 500kV, diameter is at about 1m, and weight is at 30kg-50kg.The grading ring volume and weight of other more voltage levels is larger.The use point of grading ring is all at the top of electrical equipment, and there is the distance of 3-8 rice on distance ground, and grading ring will be installed on high-altitude-electric equipment, and common experience to be sling grading ring with crane, and installation personnel is taken advantage of bucket arm vehicle deallocation to close and installed.Grading ring volume is large, high-altitude is installed and floated, and makes installation process length consuming time, affects test efficiency, add labour intensity.Special in high-grade voltage test, have a strong impact on the quick response of maintenance, processed in time.Storage floor space greatly, also have impact on the integrated of pilot system and lightweight development, also affects carrying out with safe fast of field trial.
Summary of the invention
The utility model proposes a kind of high voltage electric equipment test lightweight grading ring, its object is to, overcome the problems such as grading ring volume in prior art is large, weight causes greatly installation inconvenient, difficult in maintenance.
Lightweight grading ring is used in a kind of high voltage electric equipment test, comprises cyclic skeleton and center support;
Described center support comprises support bar and fixed block, and one end and the fixed block of described support bar are hinged, apical grafting inside the other end of described support bar and cyclic skeleton, and cyclic skeleton is supported to ring-type, and the quantity of described support bar is at least 3; Described fixed block is connected with electrical equipment;
The length of described support bar is greater than the inside radius of annular support and is less than the outer radius of annular support;
One deck skin material is covered outside described lightweight grading ring;
Described skin material is carbon fiber textile cloth or aramid fiber stainless steel fibre blended cloth.
Carbon fiber textile cloth can tolerate the high temperature of 1000 degrees Celsius, inherent flame retardant and lightweight, and poorly conductive, in metal, is 1/1000 of metallic copper electric conductivity, also more convenient for the buying of screening conductive uniform electric field.
A kind of novel high-tech synthetic fibers of aramid fiber stainless steel fibre blended cloth, the premium properties such as there is superhigh intensity, high-modulus and high temperature resistant, acid-fast alkali-proof, lightweight, insulation, anti-aging, life cycle is long, when the aramid fiber stainless steel fibre blended cloth of content more than 30% of stainless steel fibre, there is good shield effectiveness and anti-flammability is fabulous.
Center support and cyclic skeleton apical grafting, support bar can draw in, is convenient to storage and transport, greatly reduces cost of transportation.
Described cyclic skeleton is inflatable plastic, foam or spring cyclic skeleton.
Inflatable plastic, foam or spring cyclic skeleton all have lightweight advantage, inflatable plastic cyclic skeleton is collapsible, foam cyclic skeleton is easily processed, spring cyclic skeleton adopts small-bore spring steel wire to be coiled into sleeve to make, easy compression, volume is little, greatly reduces the weight and volume of lightweight grading ring, is convenient to installation and maintenance;
Described inflatable plastic cyclic skeleton adopts TPU modified plastics, and is provided with one deck woven dacron outward.
Anti-aging, and breakage-proof.
The quantity of described support bar is 4, is evenly distributed on the surrounding of fixed block.
Described lightweight refers to that grading ring quality is light, makes grading ring weight described in the utility model be about 1/3rd of existing aluminum grading ring weight, be very easy to carrying out of field trial work by above-mentioned design.
Beneficial effect
The utility model provides a kind of high voltage electric equipment test lightweight grading ring, comprises cyclic skeleton and center support; Described center support comprises support bar and fixed block, and one end and the fixed block of described support bar are hinged, apical grafting inside the other end of described support bar and cyclic skeleton, and cyclic skeleton is supported to ring-type, and the quantity of described support bar is at least 3; Described fixed block is connected with electrical equipment; The length of described support bar is greater than the inside radius of annular support and is less than the outer radius of annular support; One deck skin material is covered outside described lightweight grading ring; Described skin material is carbon fiber textile cloth or aramid fiber stainless steel fibre blended cloth.Adopt the cyclic skeleton of lightweight and the support bar that can draw in, lightweight, launch convenient, mounting means is flexible, not only reduce operation easier, and save the operating time; Meanwhile, reduce the space requirement to conveying arrangement, and decrease the dependence to boom hoisting.Inflatable plastic cyclic skeleton adopts TPU modified plastics, and is provided with one deck woven dacron outward, adds the service life of lightweight grading ring, reduces damaged in collision degree.This lightweight grading ring can be in contraction state when depositing.This stores being more conducive to and protection when using.Thus decreasing the use of aluminium, stainless steel metal material, response national energy-saving reduces discharging policy, reduces the material cost of lightweight grading ring.
Accompanying drawing explanation
Fig. 1 is the front view of lightweight grading ring in embodiment;
Fig. 2 is the right view of lightweight grading ring in embodiment;
Fig. 3 is the stereogram of lightweight grading ring in embodiment;
Fig. 4 is support bar rounding state schematic diagram in the utility model;
Label declaration: 1-cyclic skeleton, 2-support bar, 3-fixed block, 4-charging connector.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment one
As shown in Figure 1, Figure 2 and Figure 3, a kind of high voltage electric equipment test lightweight grading ring, comprises cyclic skeleton 1 and center support;
Described center support comprises support bar 2 and fixed block 3, and one end and the fixed block of described support bar are hinged, apical grafting inside the other end of described support bar and cyclic skeleton, and cyclic skeleton is supported to ring-type, and the quantity of described support bar is at least 3; Described fixed block is connected with electrical equipment;
The length of described support bar is greater than the inside radius of annular support and is less than the outer radius of annular support;
One deck skin material is covered outside described lightweight grading ring;
Described skin material is carbon fiber textile cloth or aramid fiber stainless steel fibre blended cloth.
Skin material adopts cycle machine compound, smooth.In the deflated condition, outer surface is mellow and full regular, without projection.All press respond well.
By fixed block, lightweight grading ring is fixed on electrical equipment.
Carbon fiber textile cloth can tolerate the high temperature of 1000 degrees Celsius, inherent flame retardant and lightweight, and poorly conductive, in metal, is 1/1000 of metallic copper electric conductivity, for screening conductive uniform electric field, purchases also more convenient.
A kind of novel high-tech synthetic fibers of aramid fiber stainless steel fibre blended cloth, the premium properties such as there is superhigh intensity, high-modulus and high temperature resistant, acid-fast alkali-proof, lightweight, insulation, anti-aging, life cycle is long, when the aramid fiber stainless steel fibre blended cloth of content more than 30% of stainless steel fibre, there is good shield effectiveness, and anti-flammability is fabulous.
Drawn by a large amount of analysis of experiments, in prior art, normally used activated carbon fiber cloth is without washing, and charcoal easily falls; Stainless steel cloth material is harder, and machine-shaping has soldered, weld seam comparatively hard, can difficult during compression, and then silk screen can become after compressing; Mould aluminium non-woven fabrics on non-woven fabrics, spray aluminium film, the complex process of aluminium-plated plated film, metallic aluminium is not resistance to folding at non-woven fabrics, and compression is unfolded, and metal level easily falls; And carbon fiber textile cloth or aramid fiber stainless steel fibre blended cloth can reach balanced in performance and cost.Therefore, in the utility model, use carbon fiber textile cloth or aramid fiber stainless steel fibre blended cloth as skin material.
Center support and cyclic skeleton apical grafting, and support bar can draw in, as shown in Figure 4, is convenient to storage and transport, greatly reduces cost of transportation.
Described cyclic skeleton is inflatable plastic, foam or spring cyclic skeleton.
Inflatable plastic, foam or spring cyclic skeleton all have lightweight advantage, inflatable plastic cyclic skeleton is collapsible, foam cyclic skeleton is easily processed, spring cyclic skeleton adopts small-bore spring steel wire to be coiled into sleeve to make, easy compression, volume is little, greatly reduces the weight and volume of lightweight grading ring, is convenient to installation and maintenance;
In the present embodiment, cyclic skeleton adopts inflatable plastic cyclic skeleton, and is provided with charging connector 4.Described inflatable plastic cyclic skeleton adopts TPU modified plastics, and is provided with one deck woven dacron outward.TPU modified plastics is anti-aging, and the woven dacron of peripheral hardware can effectively prevent plastic layer from scratching.
The quantity of support bar described in the present embodiment is 4, is evenly distributed on the surrounding of fixed block.Support bar after expansion, for supporting cyclic skeleton, keeps ring-type.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.

Claims (4)

1. a lightweight grading ring is used in high voltage electric equipment test, it is characterized in that, comprises cyclic skeleton and center support;
Described center support comprises support bar and fixed block, and one end and the fixed block of described support bar are hinged, apical grafting inside the other end of described support bar and cyclic skeleton, and cyclic skeleton is supported to ring-type, and the quantity of described support bar is at least 3; Described fixed block is connected with electrical equipment;
The length of described support bar is greater than the inside radius of annular support and is less than the outer radius of annular support;
One deck skin material is covered outside described lightweight grading ring;
Described skin material is carbon fiber textile cloth or aramid fiber stainless steel fibre blended cloth.
2. high voltage electric equipment test lightweight grading ring according to claim 1, is characterized in that, described cyclic skeleton is inflatable plastic, foam or spring cyclic skeleton.
3. high voltage electric equipment test lightweight grading ring according to claim 2, is characterized in that, described inflatable plastic cyclic skeleton adopts TPU modified plastics, and is provided with one deck woven dacron outward.
4. the high voltage electric equipment test lightweight grading ring according to any one of claim 1-3, is characterized in that, the quantity of described support bar is 4, is evenly distributed on the surrounding of fixed block.
CN201420760726.0U 2014-12-05 2014-12-05 Lightweight grading ring is used in a kind of high voltage electric equipment test Expired - Fee Related CN204302314U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420760726.0U CN204302314U (en) 2014-12-05 2014-12-05 Lightweight grading ring is used in a kind of high voltage electric equipment test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420760726.0U CN204302314U (en) 2014-12-05 2014-12-05 Lightweight grading ring is used in a kind of high voltage electric equipment test

Publications (1)

Publication Number Publication Date
CN204302314U true CN204302314U (en) 2015-04-29

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105929314A (en) * 2016-06-01 2016-09-07 国网河北省电力公司电力科学研究院 Ultrahigh frequency transformer partial discharge test grading ring lifting device
CN106067351A (en) * 2016-08-04 2016-11-02 苏州华电电气股份有限公司 A kind of gasbag-type metal scale extreme high voltage grading shield
CN107121567A (en) * 2017-06-05 2017-09-01 李昂 A kind of lightweight grading ring
CN109444695A (en) * 2018-11-30 2019-03-08 国网湖北省电力有限公司电力科学研究院 A kind of grading ring and its installation method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105929314A (en) * 2016-06-01 2016-09-07 国网河北省电力公司电力科学研究院 Ultrahigh frequency transformer partial discharge test grading ring lifting device
CN105929314B (en) * 2016-06-01 2019-01-25 国网河北省电力公司电力科学研究院 A kind of extra-high voltage transformer partial discharge test grading ring hanging apparatus
CN106067351A (en) * 2016-08-04 2016-11-02 苏州华电电气股份有限公司 A kind of gasbag-type metal scale extreme high voltage grading shield
CN107121567A (en) * 2017-06-05 2017-09-01 李昂 A kind of lightweight grading ring
CN109444695A (en) * 2018-11-30 2019-03-08 国网湖北省电力有限公司电力科学研究院 A kind of grading ring and its installation method

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150429

Termination date: 20171205

CF01 Termination of patent right due to non-payment of annual fee