CN107449997A - A kind of ring main unit defect model analogue means - Google Patents
A kind of ring main unit defect model analogue means Download PDFInfo
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- CN107449997A CN107449997A CN201710943220.1A CN201710943220A CN107449997A CN 107449997 A CN107449997 A CN 107449997A CN 201710943220 A CN201710943220 A CN 201710943220A CN 107449997 A CN107449997 A CN 107449997A
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- 238000009413 insulation Methods 0.000 claims abstract description 72
- 230000005611 electricity Effects 0.000 claims abstract description 24
- 239000012212 insulator Substances 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 239000003822 epoxy resin Substances 0.000 claims description 16
- 229920000647 polyepoxide Polymers 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
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- 229910001220 stainless steel Inorganic materials 0.000 description 13
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- 238000000034 method Methods 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1281—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of liquids or gases
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a kind of ring main unit defect model analogue means, the electric discharge sealed air chamber of insulation defect model is included by structure, and insulation defect model is powered by ground electrode bar and positive electricity pole bar, solve in the prior art, be not directed to the technical problem of the defects of different defect models are built in ring main unit model.
Description
Technical field
The present invention relates to partial discharge test field, more particularly to a kind of ring main unit defect model analogue means.
Background technology
It is widely applied by the ring main unit of dielectric of SF6 gases in 10kV distribution switch cubicle kind equipments, but
Ring main unit is during manufacture, transport, installation, maintenance and operation etc., internal inevitably various insulation defects, such as
The something lost after the air gap to be formed, maintenance is peeled off in metallic bur power, superstructure loosening or loose contact, conductor and supporting insulator on conductor
Metal particle in thing and cavity etc. is stayed, these can all make being internally formed not using SF6 gases as the ring main unit of dielectric
With the insulation defect of degree, so as to cause inside switch cabinet electric field to be distorted, most cause at last switch cubicle interior insulation destroy and
Trigger security incident, huge economic loss is brought to electricity power enterprise.
Different types of insulation defect causes the characteristic of shelf depreciation to have obvious difference, and then makes SF6 in different type
Resolution characteristic under the effect of insulation defect shelf depreciation is directed to difference in ring main unit there is also obvious difference by establishing
Insulation defect model, can further tracing detection SF6 ring main units built-in electrical insulation gas gas component, content and its change
Rule, more accurately understand and grasp the property and feature of SF6 ring main unit built-in electrical insulation defect types.
In the prior art, the defects of not being directed to different defect model structures in ring main unit also model, therefore it provides one
The ring main unit defect model that kind is used to study resolution characteristics of the SF6 under the effect of different type insulation defect shelf depreciation simulates dress
It is those skilled in the art's technical issues that need to address to put.
The content of the invention
The invention provides a kind of ring main unit defect model analogue means, for providing a kind of research SF6 in different type
The ring main unit defect model analogue means of resolution characteristic under the effect of insulation defect shelf depreciation.
A kind of ring main unit defect model analogue means provided by the invention, including：
Electric discharge sealed air chamber and the insulation defect model being arranged in the electric discharge sealed air chamber；
The electric discharge sealed air chamber includes：Disc base, gas chamber outer wall, disk footstock, ground electrode bar and positive electricity pole bar；
The disc base, the gas chamber outer wall and the disk footstock are fixedly connected sequentially；
First power side of the insulation defect model is fixedly connected with the ground electrode bar, the ground electrode bar with it is described
Disc base is fixedly connected, and the second power side of the insulation defect model is fixedly connected with the positive electricity pole bar, the positive electricity
Pole bar electrically connects through the disk footstock and with external power source.
Preferably, the insulation defect model is：Insulator void defects model；
The insulator void defects model includes spool insulator and plate electrode；
First circular surface of the spool insulator is the first power side of the insulation defect model；
The first of the plate electrode surveys the second power side for the insulation defect model；
Second circular surface of the spool insulator is relative with being surveyed on the plate electrode with the first of the plate electrode
The second side between be provided with space；
The center indent of second circular surface of the spool insulator.
Preferably, the insulation defect model is：Free metal particle defects model；
The free metal particle defects model includes：Ball-bowl electrode and free metal particulate；
The ball-bowl electrode includes：Ball electrode and bowl electrode；
The bowl electrode outer surface is the first power side of the insulation defect model；
The ball electrode outer surface is the second power side of the insulation defect model；
The free metal particulate is arranged in the bowl electrode.
Preferably, the insulation defect model is：Insulator surface metal filth defect model；
The insulator surface metal filth defect model includes：It is cylindrical epoxy resin insulator, at least one rectangular
Shape copper scale, at least one rectangle copper scale are fixedly connected with the bent side of the cylindrical epoxy resin insulator；
First circular surface of the cylindrical epoxy resin insulator is the first power side of the insulation defect model；
Second circular surface of the cylindrical epoxy resin insulator is the second power side of the insulation defect model.
Preferably, the insulation defect model is：Solid metal thing defect model；
The solid metal thing defect model is needle to board electrode, and the needle to board electrode includes pin electrode and plate electrode；
The plate electrode is the first power side of the insulation defect model；
The pin electrode is the second power side of the insulation defect model.
Preferably, the first power side of the insulation defect model be fixedly connected with the ground electrode bar including：
First power side of the insulation defect model is threadably secured with the ground electrode bar and is connected.
Preferably, the gas chamber outer wall is specially：Hollow cylinder；
The disc base and the disk footstock be provided with match with the bottom surface cylinder ring of the hollow cylinder it is recessed
Groove.
Preferably, air inlet, gas outlet and air pressure test mouth are offered on the disc base；
The air inlet and the first conversion valve are tightly connected, and the gas outlet is tightly connected with the second conversion valve, institute
Air pressure test mouth is stated to be tightly connected with air gauge.
Preferably, in addition to, at least one support bar；
At least one support bar is vertically fixedly connected between the disc base and the disk footstock, for propping up
Hold round disk footstock.
Preferably, the disc base, the gas chamber outer wall and the disk footstock be fixedly connected sequentially including：
The disc base, the gas chamber outer wall are fixedly connected with the disk footstock by flanged connection system.
As can be seen from the above technical solutions, the present invention has advantages below：
A kind of ring main unit defect model analogue means provided by the invention, including：Electric discharge sealed air chamber and it is arranged on described
The insulation defect model to discharge in sealed air chamber；The electric discharge sealed air chamber includes：Disc base, gas chamber outer wall, disk footstock,
Ground electrode bar and positive electricity pole bar；The disc base, the gas chamber outer wall and the disk footstock are fixedly connected sequentially；It is described exhausted
First power side of edge defect model is fixedly connected with the ground electrode bar, and the ground electrode bar is fixed with the disc base to be connected
Connect, the second power side of the insulation defect model is fixedly connected with the positive electricity pole bar, and the positive electricity pole bar runs through the circle
Disk footstock simultaneously electrically connects with external power source.
In the present invention, the electric discharge sealed air chamber of insulation defect model is included by structure, and passes through ground electrode bar and positive electricity
Pole bar is powered to insulation defect model, solves in the prior art, is not directed to different defect model structures in ring main unit
The technical problem of the defects of building model.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of structural representation of one embodiment of ring main unit defect model analogue means provided by the invention；
Fig. 2 is a kind of structural representation of another embodiment of ring main unit defect model analogue means provided by the invention
Figure；
Fig. 3 is a kind of structural representation of another embodiment of ring main unit defect model analogue means provided by the invention
Figure；
Fig. 4 is a kind of structural representation of another embodiment of ring main unit defect model analogue means provided by the invention
Figure；
Fig. 5 is a kind of structural representation of another embodiment of ring main unit defect model analogue means provided by the invention
Figure.
Embodiment
The embodiments of the invention provide a kind of ring main unit defect model analogue means, for solving in the prior art, not having also
There is the technical problem of the defects of being directed to different defect model structures in ring main unit model.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Referring to Fig. 1, a kind of one embodiment of ring main unit defect model analogue means provided by the invention, including：
Electric discharge sealed air chamber 101 and the insulation defect model 102 being arranged in electric discharge sealed air chamber；
Electric discharge sealed air chamber includes：Disc base 103, gas chamber outer wall 104, disk footstock 105, ground electrode bar 106 and just
Electrode stem 107；
It should be noted that disc base 103 can be made up of stainless steel, actual implementation process, in order to cup dolly
Support in the plane, can set a support frame in addition, support frame is by four solid stainless steel bars and the pros of outside weldings
Shape steel ring is formed, and to keep stability, the branch that four diameters are more than stainless steel bar can be connected in the bottom of four stainless steel bars
Disk is held round, forms the support with ground, disc base 103 is located at support frame top；
Disk footstock 105 can be made up of epoxy resin.
Disc base 103, gas chamber outer wall 104 and disk footstock 105 are fixedly connected sequentially；
It should be noted that the air chamber overall structure after combination is cylinder, disclosure satisfy that bear 0 to 0.2Mpa air pressure with
And 96 hours gastight technical requirements.
First power side of insulation defect model 102 is fixedly connected with ground electrode bar 106, ground electrode bar 106 and disk bottom
Seat 103 is fixedly connected, and the second power side of insulation defect model 102 is fixedly connected with positive electricity pole bar 107, and positive electricity pole bar 107 is passed through
Wear disk footstock 105 and electrically connected with external power source.
It should be noted that copper guide rod can be selected as ground electrode bar 106, ground electrode bar 106 and disk footstock 105
Position relationship can select in specific implementation, not limit here；
In actual implementation process, a center hole can be dug out at the center of disk footstock 105 and is used as positive electricity pole bar 107
Hole is stretched into, positive electricity pole bar 107 can be combined by positive electrode cylinder and copper rod and formed, and further, screw thread use is carved with copper rod bottom
It is connected in insulation defect model 102, screw thread is carved with the top of copper rod and is used to electrically connect with positive electrode cylindrical base to realize electrode
The adjustment of distance, positive electrode cylinder center of circle carve have screw thread hole, for being threadedly coupled with guide rod at the top of copper rod, positive electrode
Cylinder is stretched into by the center hole of disk footstock 105, further, can set one in the outside of electric discharge sealed air chamber 101
The epoxy resin annulus to match with positive electrode cylinder, for positive electrode cylinder to be fixed.
A kind of ring main unit defect model analogue means provided in an embodiment of the present invention, including：Electric discharge and is set sealed air chamber 101
Put the insulation defect model 102 in electric discharge sealed air chamber 101；Electric discharge sealed air chamber 101 includes：Outside disc base 103, air chamber
Wall 104, disk footstock 105, ground electrode bar 106 and positive electricity pole bar 107；Disc base 103, gas chamber outer wall 104 and disk footstock
105 are fixedly connected sequentially；First power side of insulation defect model 102 is fixedly connected with ground electrode bar 106, ground electrode bar 106
It is fixedly connected with disc base 103, the second power side of insulation defect model 102 is fixedly connected with positive electricity pole bar 107, positive electrode
Bar 107 electrically connects through disk footstock 105 and with external power source, is sealed by building the electric discharge comprising insulation defect model 102
Air chamber 101, and insulation defect model 102 is powered by ground electrode bar 106 and positive electricity pole bar 107, solve existing skill
In art, the technical problem of the defects of different defect models are built in ring main unit model is not directed to also.
Above is the description carried out to a kind of one embodiment of ring main unit defect model analogue means, below will be to one kind
Another embodiment of ring main unit defect model analogue means is described in detail.
A kind of another embodiment of ring main unit defect model analogue means provided by the invention, including：
Electric discharge sealed air chamber 101 and the insulation defect model 102 being arranged in electric discharge sealed air chamber 101；
Electric discharge sealed air chamber 101 includes：Disc base 103, gas chamber outer wall 104, disk footstock 105, the and of ground electrode bar 106
Positive electricity pole bar 107；
Disc base 103, gas chamber outer wall 104 are fixedly connected with disk footstock 105 by flanged connection system；
It should be noted that 12 circular holes can be evenly distributed in disc base 103 and disk footstock 105, for it is close
Envelope flanged connection system agree with, flange seal system can be made up of stainless steel annulus, stainless steel bar, nut, pad, wherein, no
Rust steel annulus is evenly distributed 12 circular holes in designated area；12 stainless steel bar bodies are carved with screw thread and sequentially pass through stainless steel annulus
Circular hole, after the circular hole of disk footstock 105 and the circular hole of disc base 103, it is tight using 24 matching nuts and pad
Close connection, the air-tightness of air chamber is controlled by the position of stainless steel bar where adjusting nut.
First power side of insulation defect model 102 is fixedly connected with ground electrode bar 106, ground electrode bar 106 and disk bottom
Seat 103 is fixedly connected, and the second power side of insulation defect model 102 is fixedly connected with positive electricity pole bar 107, and positive electricity pole bar 107 is passed through
Wear disk footstock 105 and electrically connected with external power source.
Further, insulation defect model 102 is：Insulator void defects model；
Insulator void defects model includes spool insulator 201 and plate electrode 202；
First circular surface of spool insulator 201 is the first power side of insulation defect model 102；
First power side of plate electrode 202 is the second power side of insulation defect model 102；
Second circular surface of spool insulator 201 is relative with the first power side of plate electrode 202 with plate electrode 202
Opposite side between be provided with space；
The center indent of second circular surface of spool insulator 201；
Reference picture 2, Fig. 2 are an a kind of insulator of ring main unit defect model analogue means provided in an embodiment of the present invention
The structural representation of void defects model, wherein, spool insulator 201 is carried out with ground electrode bar 106 using epoxide-resin glue
Closely connection, it is ensured that, further, plate electrode 202 and spool insulator 201 before both without gap or bubble be present
Upper surface intersection size of gaps about 1~2mm, in order to reflect real air gap situation, the second circle of spool insulator 201
The center indent on surface, air gap edge are in arc line shaped.
Further, insulation defect model 102 is：Free metal particle defects model；
Free metal particle defects model includes：Ball-bowl electrode and free metal particulate 303；
Ball-bowl electrode includes：Ball electrode 301 and bowl electrode 302；
Bowl electrode 302 outer surface is the first power side of insulation defect model 102；
The outer surface of ball electrode 301 is the second power side of insulation defect model 102；
Free metal particulate 303 is arranged in bowl electrode.
Reference picture 3, Fig. 3 are one of a kind of ring main unit defect model analogue means provided in an embodiment of the present invention freely golden
Belong to the structural representation of the defect model of particulate 303, further, the diameter ratio of ball electrode 301 and bowl electrode 302 is about 1:2.7
Bowl electrode 302 can cut to obtain by the ratio of half to stainless steel hollow ball, further, free metal particulate
303 can use the thin bits of aluminium of microsize be simulated, wherein, aluminium skimmings are approximately square, and size is about 1 × 1mm, quantity 50
To 200, it is contemplated that randomized jitter may be occurred by acting on aluminium skimmings under strong electric field, to ensure that experiment normal continuous is carried out,
It is necessary the beating scope of limitation metal aluminium skimmings, the bore of bowl electrode 302 can be arranged to 120mm, the diameter of ball electrode 301 is set
44mm is set to, particulate maximum jitter scope can be to 40mm.
Further, insulation defect model 102 is：Insulator surface metal filth defect model；
Insulator surface metal filth defect model includes：Cylindrical epoxy resin insulator 401, at least one rectangle
Copper scale 402, at least one rectangle copper scale 402 are fixedly connected with the bent side of cylindrical epoxy resin insulator 401；
First circular surface 403 of cylindrical epoxy resin insulator is the first power side of insulation defect model 102；
Second circular surface 404 of cylindrical epoxy resin insulator is the second power side of insulation defect model 102；
Reference picture 4, Fig. 4 are an a kind of insulator of ring main unit defect model analogue means provided in an embodiment of the present invention
The structural representation of surface metal filth defect model, further, insulator surface metal filth defect model use ring
Oxygen resin glue is by the first circular surface 403 and the close adhesion of ground electrode bar 106 of cylindrical epoxy resin insulator 401, and second
Circular surface 404 and the close adhesion of positive electricity pole bar 107, it is ensured that there is no gap or bubble to exist at adhesion.
Further, insulation defect model 102 is：Solid metal thing defect model；
Solid metal thing defect model is needle to board electrode, and needle to board electrode includes pin electrode 501 and plate electrode 502；
Plate electrode 502 is the first power side of insulation defect model 502；
Pin electrode 501 is the second power side of insulation defect model 501；
Reference picture 5, Fig. 5 are an a kind of solid gold of ring main unit defect model analogue means provided in an embodiment of the present invention
Belong to the structural representation of thing defect model, the point radius of curvature of pin electrode 501 is about 0.3mm, and point angle is about 30 °, pin electricity
Pole 501 and the material of the material of plate electrode 502 are stainless steel, and electrode surface carries out good polishing, and pin electrode 501 is used for mould
Intend the abnormal protruding point on high-pressure conductor, plate electrode 502 is used for analog switch cabinet metal shell.
Air inlet, gas outlet and air pressure test mouth are offered on disc base 103；
Air inlet and the first conversion valve are tightly connected, and gas outlet is tightly connected with the second conversion valve, air pressure test mouth
It is tightly connected with air gauge；
It should be noted that in actual implementation process, air inlet, gas outlet and air pressure test mouth can respectively with three not
Become rusty steel-pipe welding, and one in three stainless steel tubes is tightly connected with air gauge, for measuring the gas in the range of 0 to 0.2Mpa
Pressure, two stainless steel tubes and conversion valve sealed connection in addition, for extracting and injection experimentses gas.
Further, ring main unit defect model analogue means also includes, at least one support bar；
At least one support bar is vertically fixedly connected between disc base 103 and disk footstock 105, for supporting disk
Footstock 105.
It is apparent to those skilled in the art that for convenience and simplicity of description, the method for foregoing description
With the specific work process of module, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of ring main unit defect model analogue means, its feature are, including：
Electric discharge sealed air chamber and the insulation defect model being arranged in the electric discharge sealed air chamber；
The electric discharge sealed air chamber includes：Disc base, gas chamber outer wall, disk footstock, ground electrode bar and positive electricity pole bar；
The disc base, the gas chamber outer wall and the disk footstock are fixedly connected sequentially；
First power side of the insulation defect model is fixedly connected with the ground electrode bar, the ground electrode bar and the disk
Base is fixedly connected, and the second power side of the insulation defect model is fixedly connected with the positive electricity pole bar, the positive electricity pole bar
Electrically connect through the disk footstock and with external power source.
2. ring main unit defect model analogue means according to claim 1, it is characterised in that the insulation defect model
For：Insulator void defects model；
The insulator void defects model includes spool insulator and plate electrode；
First circular surface of the spool insulator is the first power side of the insulation defect model；
The first of the plate electrode surveys the second power side for the insulation defect model；
Second circular surface of the spool insulator it is relative with being surveyed on the plate electrode with the first of the plate electrode the
Space is provided between two sides；
The center indent of second circular surface of the spool insulator.
3. ring main unit defect model analogue means according to claim 1, it is characterised in that the insulation defect model
For：Free metal particle defects model；
The free metal particle defects model includes：Ball-bowl electrode and free metal particulate；
The ball-bowl electrode includes：Ball electrode and bowl electrode；
The bowl electrode outer surface is the first power side of the insulation defect model；
The ball electrode outer surface is the second power side of the insulation defect model；
The free metal particulate is arranged in the bowl electrode.
4. ring main unit defect model analogue means according to claim 1, it is characterised in that the insulation defect model
For：Insulator surface metal filth defect model；
The insulator surface metal filth defect model includes：Cylindrical epoxy resin insulator, at least one rectangular copper
Bits, at least one rectangle copper scale are fixedly connected with the bent side of the cylindrical epoxy resin insulator；
First circular surface of the cylindrical epoxy resin insulator is the first power side of the insulation defect model；
Second circular surface of the cylindrical epoxy resin insulator is the second power side of the insulation defect model.
5. ring main unit defect model analogue means according to claim 1, it is characterised in that the insulation defect model
For：Solid metal thing defect model；
The solid metal thing defect model is needle to board electrode, and the needle to board electrode includes pin electrode and plate electrode；
The plate electrode is the first power side of the insulation defect model；
The pin electrode is the second power side of the insulation defect model.
6. ring main unit defect model analogue means according to claim 2, it is characterised in that the insulation defect model
First power side be fixedly connected with the ground electrode bar including：
First power side of the insulation defect model is threadably secured with the ground electrode bar and is connected.
7. ring main unit defect model analogue means according to claim 3, it is characterised in that the gas chamber outer wall is specific
For：Hollow cylinder；
The disc base and the disk footstock are provided with the groove to match with the bottom surface cylinder ring of the hollow cylinder.
8. ring main unit defect model analogue means according to claim 4, it is characterised in that opened up on the disc base
There are air inlet, gas outlet and air pressure test mouth；
The air inlet and the first conversion valve are tightly connected, and the gas outlet is tightly connected with the second conversion valve, the gas
Pressure test mouth is tightly connected with air gauge.
9. ring main unit defect model analogue means according to claim 5, it is characterised in that also include, at least one
Strut；
At least one support bar is vertically fixedly connected between the disc base and the disk footstock, is held round for propping up
Disk footstock.
10. the ring main unit defect model analogue means according to claim 1 to 5, it is characterised in that the disc base,
The gas chamber outer wall and the disk footstock be fixedly connected sequentially including：
The disc base, the gas chamber outer wall are fixedly connected with the disk footstock by flanged connection system.
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| CN201710943220.1A CN107449997B (en) | 2017-10-11 | 2017-10-11 | Ring main unit defect model simulation device |
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| CN201710943220.1A CN107449997B (en) | 2017-10-11 | 2017-10-11 | Ring main unit defect model simulation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490319A (en) * | 2018-03-21 | 2018-09-04 | 广东电网有限责任公司电力科学研究院 | A kind of GIS defects of insulator model and test SF6The method of decomposition product |
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|---|---|---|---|---|
| CN201723807U (en) * | 2010-06-04 | 2011-01-26 | 赵洪东 | Magnetic gas timing valve |
| CN203688728U (en) * | 2013-12-27 | 2014-07-02 | 深圳供电局有限公司 | Model used for simulating air gap defect of GIS equipment |
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| CN201723807U (en) * | 2010-06-04 | 2011-01-26 | 赵洪东 | Magnetic gas timing valve |
| CN203688728U (en) * | 2013-12-27 | 2014-07-02 | 深圳供电局有限公司 | Model used for simulating air gap defect of GIS equipment |
| WO2016033713A1 (en) * | 2014-09-05 | 2016-03-10 | 国家电网公司 | Non-line frequency operation mode gis device partial discharge defect simulation apparatus |
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| CN108490319A (en) * | 2018-03-21 | 2018-09-04 | 广东电网有限责任公司电力科学研究院 | A kind of GIS defects of insulator model and test SF6The method of decomposition product |
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