CN110133453A - It is a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process - Google Patents

It is a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process Download PDF

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Publication number
CN110133453A
CN110133453A CN201910279448.4A CN201910279448A CN110133453A CN 110133453 A CN110133453 A CN 110133453A CN 201910279448 A CN201910279448 A CN 201910279448A CN 110133453 A CN110133453 A CN 110133453A
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CN
China
Prior art keywords
paper
oil
fixed
paper tape
electrode
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Application number
CN201910279448.4A
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Chinese (zh)
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CN110133453B (en
Inventor
倪鹤立
杨智
文韬
张乔根
郑一鸣
何文林
李晨
詹江杨
郭冲
赵毅
靳铭凯
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Xian Jiaotong University
Zhejiang Electric Power Research Institute
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Xian Jiaotong University
Zhejiang Electric Power Research Institute
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Priority to CN201910279448.4A priority Critical patent/CN110133453B/en
Publication of CN110133453A publication Critical patent/CN110133453A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing 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
    • G01R31/1227Testing 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
    • G01R31/1263Testing 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

Abstract

The invention discloses a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process, discharging gap is formed between bar electrode and plate electrode, differential head adjusts discharging gap according to the number of plies of oil-paper paper tape.The corresponding unidirectional roll of every layer of oil-paper paper tape and a two-way roller, one end are wound on unidirectional roll, and the other end is wound on two-way roller.Per two adjacent laminates for fixing one layer of oil-paper paper tape, and every laminate make it is spaced apart between per two layers adjacent of oil-paper paper tape.The present invention can be realized the continuous transmission or replacement of oil-paper paper tape, and relaxation degree is adjustable, can guarantee experiment in each layer oil-paper be in tighten, horizontality, and region of discharge is not necessarily to backing material, be conducive to discharge in insulation process observation and experimental study that multilayer oil-paper is carried out with the optical devices such as camera, photomultiplier tube or means, have many advantages, such as that flexibility is high, at low cost, simple and easy, experiment consistency is good, convenient for being widely popularized.

Description

It is a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process
Technical field
The present invention relates to a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process, and it is special to belong to dielectric electric discharge Property experimental study field.
Background technique
Multilayer oil-impregnated paper insulation structure as the Exemplary insulative form inside oil-immersed type power equipment, flash-over characteristic by The concern of numerous scholars.Currently, the construction of multilayer oil-impregnated paper insulation mostly uses the nonmetallic circular ring of required thickness to laminate layer by layer Mode, but this method exists as following drawbacks:
1, each group of test product is required to a set of nonmetallic circular ring, needs for insulating paper to be fixed on annulus before experiment, workload Greatly, at high cost, flexibility is poor, replaces test product complex steps.
2, by nonmetallic circular ring laminate in the way of be difficult to ensure that paper is in tight state, the paper being soaked in liquid , it is often attached mutually because of the space charge generated in the flowing of liquid or discharge process, so that test product is arranged in reality Occurs uncontrollable factor during testing, experiment consistency is poor.
3, due to refractive index, absorptance etc., the presence of the backing materials such as nonmetallic circular ring is unfavorable for using camera, light The discharge process of the optical devices such as electric multiplier tube observation multilayer oil-impregnated paper insulation.
Summary of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of for observing the dress of multilayer oil-impregnated paper insulation discharge process It sets.The present invention mainly adopts the following technical scheme that
It is a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process, including a differential head, a fixed plate, an electrode Seat, a bar electrode, a plate electrode, at least two unidirectional rolls, at least two two-way rollers and at least two layers of oil-paper paper tape.Wherein, The center of fixed plate is equipped with a tapped through hole, and one end of differential head connects after passing through and fixing to tapped through hole with electrode tip holder It connects, bar electrode is fixed on electrode tip holder, and discharging gap is formed between bar electrode and plate electrode.The top of plate electrode and close to unidirectional The fixed device of one group of oil-paper paper tape is respectively set, often in the side of roller and the top of plate electrode and the side of close two-way roller The fixed device of group oil-paper paper tape includes at least three laminates.Being used per two adjacent laminates in the fixed device of oil-paper paper tape In fixing one layer of oil-paper paper tape, and every laminate make it is spaced apart between per two layers adjacent of oil-paper paper tape.Every layer The corresponding unidirectional roll of oil-paper paper tape and a two-way roller, one end are wound on unidirectional roll, and the other end is wound in two-way On roller.
Bring advantageous effects of the present invention are:
The present invention can be realized the continuous transmission or replacement of oil-paper paper tape, and relaxation degree is adjustable, it is ensured that each in experiment Layer oil-paper be in tighten, horizontality, and region of discharge is not necessarily to backing material, is conducive to camera, photomultiplier tube Equal optical devices or means carry out the discharge in insulation process observation of multilayer oil-paper, provide advantage for subsequent experimental research, Have many advantages, such as that flexibility is high, at low cost, simple and easy, experiment consistency is good, convenient for being widely popularized.
Detailed description of the invention
Fig. 1 is provided by one embodiment of the present invention a kind of for observing the device knot of multilayer oil-impregnated paper insulation discharge process Structure schematic diagram;
Fig. 2 is the A of dotted portion shown in Fig. 1 of the present invention to three-dimensional enlarged diagram;
Fig. 3 is the partial structure diagram of unidirectional roll provided by one embodiment of the present invention;
Fig. 4 is the partial structure diagram of two-way roller provided by one embodiment of the present invention.
Specific embodiment
1 to attached drawing 4 and embodiment, the present invention will be described in detail with reference to the accompanying drawing, but not as to limit of the invention It is fixed.
In one embodiment, the disclosure discloses a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process, As shown in Figure 1, the device includes a differential head 1, a fixed plate 2, an electrode tip holder 3, a bar electrode 4, a plate electrode 5, at least two A unidirectional roll 6, at least two two-way rollers 7 and at least two layers of oil-paper paper tape 8.Wherein, the center of fixed plate 2 is equipped with a spiral shell Line through-hole, one end of differential head 1 are connect after passing through and fixing to tapped through hole with electrode tip holder 3, and bar electrode 4 is fixed on electrode tip holder 3 On, discharging gap is formed between bar electrode 4 and plate electrode 5.The side and plate electricity of the top of plate electrode 5 and close unidirectional roll 6 The fixed device 9 of one group of oil-paper paper tape is respectively set in the top of pole 5 and the side of close two-way roller 7.Wherein, every group of oil-paper The fixed device 9 of paper tape includes at least three laminates, is used to fix per two adjacent laminates in the fixed device 9 of oil-paper paper tape One layer of oil-paper paper tape 8, and every laminate makes per spaced apart between two layers adjacent of oil-paper paper tape.Every layer of oil-paper The corresponding unidirectional roll 6 of paper tape 8 and a two-way roller 7, one end are wound on unidirectional roll 6, and the other end is wound in two-way roller 7 On.
The embodiment of the present disclosure is by using single, double continuous transmission and the relaxation degree for realizing multilayer oil-paper paper tape to roller of multiple groups Adjust, the spacing between the oil-paper paper tape of every adjacent two layers by pressing plate control, differential head accurately control it is interelectrode away from From region of discharge is not necessarily to backing material.
The embodiment of the present disclosure at least brings following advantageous effects:
The embodiment of the present disclosure can be realized the continuous transmission or replacement of oil-paper paper tape, and relaxation degree is adjustable, it is ensured that real In testing each layer oil-paper be in tighten, horizontality, and region of discharge is not necessarily to backing material, is conducive to camera, photoelectricity The optical devices such as multiplier tube or means carry out the discharge in insulation process observation and experimental study of multilayer oil-paper, have flexibility It is high, at low cost, simple and easy, experiment consistency it is good the advantages that.
In another embodiment, oil-paper paper tape 8 is two layers, and unidirectional roll 6 and two-way roller 7 are two, every group of oil immersion Pressing plate in the fixed device 9 of paper paper tape is three layers.
In the present embodiment, for the device for realizing the discharge in insulation process observation of two layers of oil-paper, which is only it In one embodiment, the discharge in insulation process of the oil-paper of other numbers of plies can also be carried out in specific experiment according to actual needs Observation and research, details are not described herein.
In another embodiment, device further includes that the first raising seat 10, second increases seat 11 and third raising seat 12, plate The bottom end of electrode 5 is fixed on the first raising seat 10, and a unidirectional roll 6 is fixed on the second raising seat 11, and a two-way roller 7 is solid It is increased on seat 12 due to third.
In the present embodiment, seat 11 and third raising seat 12 are increased by the way that the first raising seat 10, second is respectively set, can be made every The oil-paper paper tape transmitted between group unidirectional roll 6 and two-way roller 7 is in horizontal position.Wherein, the height for respectively increasing seat can root It is adjusted, is not limited thereto according to actual conditions.
In another embodiment, device further includes bottom plate 13, and first, which increases seat 10, second, increases seat 11, third raising Seat 12, another unidirectional roll 6 and another two-way roller 7 are both secured on bottom plate 13.
In another embodiment, device further includes at least four for fixation clip, oil-paper paper tape 8 and fixed plate 2 Screw rod 14, at least four screw rods 14 are individually fixed on the first raising seat 10, are provided with clamp nut 15 on each screw rod 14.
In the present embodiment, by the way that clamp nut 15 is arranged on screw rod 14, it can be realized by clamp nut 15 to each pressing plate The oil-paper paper tape 8 of interlayer is fastened, and every layer of oil-paper paper tape 8 is made to be in horizontal tight state.
In another embodiment, device further includes at least four fixed high sleeves 16, is respectively sleeved at least four screw rods On 14, fixed high sleeve 16 has same height with plate electrode 5.
In the present embodiment, by the way that fixed high sleeve 16 is arranged and is placed on screw rod, to realize that pressing plate is constantly in horizontality.
In another embodiment, unidirectional roll 6 includes the first one start screw bar 17, the first locking nut 18, unilateral bearing 19 and first bearing bracket 20, unilateral bearing 19 is fixed on the spiral shell of 17 one end of the first one start screw bar by the first locking nut 18 It behind line part, then is integrally fastened on first bearing bracket 20, realizes the one-directional rotation of the first one start screw bar 17.
In another embodiment, two-way roller 7 includes the second one start screw bar 21, the second locking nut 22, two-way bearing 23 and second bearing bracket 24, two-way bearing 23 is fixed on the spiral shell of 21 one end of the second one start screw bar by the second locking nut 22 It behind line part, then is integrally fastened on second bearing bracket 24, realizes the Double-directional rotary of the second one start screw bar 21.
In another embodiment, pressing plate and the oil-paper paper tape 8 that will be close to 7 side of two-way roller are solid by clamp nut 15 Fixed, rotation unidirectional roll 6 will be close to the pressing plate of 6 side of unidirectional roll again to after can not rotate and oil-paper paper tape 8 passes through clamp nut 15 is fixed, make oil-paper paper tape 8 always in tighten, horizontality.
In the present embodiment, oil-paper paper tape is fixed by this way, oil-paper paper tape 8 can be made to be in always Tight, horizontality, the space charge that will not be generated in flowing because of liquid or discharge process and attach mutually so that electric discharge Region is not necessarily to backing material, and experiment consistency is good.
In another embodiment, the adjustable range of differential head 1 is 0-50mm, according to the number of plies tune of oil-paper paper tape 8 Save discharging gap.The head radius of curvature of bar electrode 4 is 0.25mm, and the radius of plate electrode 5 is 35mm, chamfer radius 5mm.Oil Impregnated paper paper tape 8 with a thickness of 0.075mm, width 80mm.
Some embodiments are to progress such as material, size, type selecting and the compositions of component each in apparatus of the present invention below Illustrate, assembling is flexible, size is small, at low cost, high reliability using having after following technical characteristic for apparatus of the present invention.
In another embodiment, adjustable range is that the differential head 1 of 0-50mm can pass through the M10 of 2 center of fixed plate × 1mm threaded hole is fixed, to realize the accurate adjusting of bar electrode 4 Yu 5 discharge gap distance of plate electrode.The material of fixed plate 2 is Organic glass, having a size of 130mm × 130mm × 5mm.
In another embodiment, the screw rod 14 that four thread standards are M10, length is 200mm is fixed on the first raising On seat 10, fixed plate 2 is fixed on the suitable position on screw rod 14 by M10 routine fixture nut level.Fixture nut and screw rod Material be nylon.
In another embodiment, head radius of curvature be 0.25mm bar electrode 4 be threadably secured in Φ 10mm × On the electrode tip holder 3 of 10mm, electrode tip holder 3 is fixed on differential head 1 by jackscrew.The plate electrode 5 of radius 35mm, chamfer radius 5mm It can be threadably secured the center for increasing seat 10 in first, 150mm × 150mm × 10mm first increases seat 10 and is fixed on On bottom plate 13.Bar electrode 4, plate electrode 5, electrode tip holder 3 material be stainless steel, first, which increases seat 10, second, increases seat 11, the The material of three raising seats 12 and bottom plate 13 is organic glass.It is 50mm that second raising seat 11 and third, which increase the size of seat 12, ×20mm×15mm。
In another embodiment, internal diameter Φ 11mm, outer diameter Φ 13mm, high 15mm fixed high sleeve 16 be placed on screw rod 14 On, to realize that pressing plate is in horizontality.
In another embodiment, Φ 30mm unilateral bearing is fixed on by unidirectional roll 6 by conventional first locking nut of M10 The threaded portion of the first one start screw bar of long 150/180mm, it is whole later to be fixed in 30 first bearing bracket of Φ again, with reality The one-directional rotation of existing first one start screw bar.The material of first bearing bracket is aluminium alloy, and the material of the first one start screw bar is Red copper, the material of the first locking nut are nylon.
In another embodiment, the two-way bearing of Φ 30mm is fixed on by two-way roller 7 by conventional second locking nut of M10 The threaded portion of the second one start screw bar of long 150/180mm, it is whole later to be fixed in 30 second bearing bracket of Φ again, with reality The Double-directional rotary of existing second one start screw bar.The material of second bearing bracket is aluminium alloy, and the material of the second one start screw bar is Red copper, the material of the second locking nut are nylon.
In another embodiment, 8 one ends wound of oil-paper paper tape of thick 0.075mm, wide 80mm are on two-way roller, one end It is wound on unidirectional roll, to realize the continuous transmission of oil-paper paper tape.When clamp nut 15 is by 7 side oil-paper paper of two-way roller After band is fixed, unidirectional roll 6 is rotated to that can not rotate, the clamp nut 15 for tightening 6 side of unidirectional roll can be completely fixed oil-paper paper Band, with realize oil-paper paper tape be in always tighten, horizontality.
In another embodiment, using optical diagnostic devices such as camera or photomultiplier tubes from bilayer or multilayer oil immersion Paper insulated side carries out optical observation.
In conclusion the drawbacks of disclosure is according to current multilayer oil-impregnated paper insulation bracket, provides a kind of for observing The device of multilayer oil-impregnated paper insulation discharge process, the invention are suitable for emphatically optical instrument to be utilized and carry out multilayer oil-impregnated paper insulation The experimental study of discharge process observation, saves experimental cost, simple and easy, convenient for being widely popularized.
The above, only presently preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any ripe Know those skilled in the art in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover Within protection scope of the present invention.

Claims (10)

1. it is a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process,
Described device include a differential head (1), a fixed plate (2), an electrode tip holder (3), a bar electrode (4), a plate electrode (5), At least two unidirectional rolls (6), at least two two-way rollers (7) and at least two layers of oil-paper paper tape (8);Wherein,
The center of the fixed plate (2) is equipped with a tapped through hole, and one end of the differential head (1) passes through and fixes to screw thread It is connect after through-hole with electrode tip holder (3), the bar electrode (4) is fixed on electrode tip holder (3);The bar electrode (4) and plate electrode (5) Between form discharging gap;
The top of the plate electrode (5) and close to the side of unidirectional roll (6) and the top of the plate electrode (5) and close to double To the side of roller (7), it is fixed device (9) that one group of oil-paper paper tape is respectively set;Every group of oil-paper paper tape is fixed device (9) Including at least three laminates;
It is used to fix one layer of oil-paper paper tape (8) per two adjacent laminates in the oil-paper paper tape fixed device (9), and Every laminate makes spaced apart between per two layers adjacent of oil-paper paper tape;
The corresponding unidirectional roll (6) of every layer of oil-paper paper tape (8) and a two-way roller (7), one end are wound in unidirectionally On roller (6), the other end is wound on two-way roller (7).
2. the apparatus according to claim 1, wherein it is preferred,
The oil-paper paper tape (8) is two layers, and the unidirectional roll (6) and two-way roller (7) are respectively two, every group of oil-paper Pressing plate in paper tape fixed device (9) is three layers.
3. the apparatus of claim 2, wherein
Described device further includes that the first raising seat (10), the second raising seat (11) and third increase seat (12), the plate electrode (5) Bottom end be fixed on the first raising seat (10), a unidirectional roll (6) is fixed on the second raising seat (11), a two-way roller (7) third is fixed on to increase on seat (12).
4. device according to claim 3, wherein
Described device further includes bottom plate (13), it is described first increase seat (10), second increase seat (11), third increase seat (12), Another unidirectional roll (6) and another two-way roller (7) are both secured on bottom plate (13).
5. device according to claim 4, wherein
Described device further includes at least four screw rods (14) for being used for fixation clip, oil-paper paper tape (8) and fixed plate (2), institute At least four screw rods (14) are stated to be individually fixed on the first raising seat (10).
6. device according to claim 5, wherein
Described device further includes at least four fixed high sleeves (16), is respectively sleeved at least four screw rods (14);It is described Fixed high sleeve (16) and plate electrode (5) have same height.
7. the apparatus according to claim 1, wherein
The unidirectional roll (6) includes the first one start screw bar (17), the first locking nut (18), unilateral bearing (19) and first axle It holds bracket (20), the unilateral bearing (19) is fixed on first one start screw bar (17) one end by the first locking nut (18) It after threaded portion, then is integrally fastened on first bearing bracket (20), realizes the one-directional rotation of the first one start screw bar (17).
8. the apparatus according to claim 1, wherein
The two-way roller (7) includes the second one start screw bar (21), the second locking nut (22), two-way bearing (23) and the second axis It holds bracket (24), the two-way bearing (23) is fixed on second one start screw bar (21) one end by the second locking nut (22) It after threaded portion, then is integrally fastened on second bearing bracket (24), realizes the Double-directional rotary of the second one start screw bar (21).
9. the apparatus according to claim 1, wherein
Pressing plate and the oil-paper paper tape (8) that will be close to two-way roller (7) side are fixed by clamp nut (15), rotate unidirectional roll (6) pressing plate and the oil-paper paper tape (8) that will be close to unidirectional roll (6) side after can not extremely rotating again are solid by clamp nut (15) It is fixed, make oil-paper paper tape (8) always in tighten, horizontality.
10. the apparatus according to claim 1, wherein
The adjustable range of the differential head (1) is 0-50mm, adjusts discharging gap according to the number of plies of oil-paper paper tape (8);Institute The head radius of curvature for stating bar electrode (4) is 0.25mm;The radius of the plate electrode (5) is 35mm, chamfer radius 5mm;Institute State oil-paper paper tape (8) with a thickness of 0.075mm, width 80mm.
CN201910279448.4A 2019-04-09 2019-04-09 Device for observing insulating discharge process of multilayer oil-impregnated paper Active CN110133453B (en)

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