CN107689286A - The outlet shielding construction and its installation method of a kind of 500kV high-power transformers high-voltage connection - Google Patents
The outlet shielding construction and its installation method of a kind of 500kV high-power transformers high-voltage connection Download PDFInfo
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- CN107689286A CN107689286A CN201710531412.1A CN201710531412A CN107689286A CN 107689286 A CN107689286 A CN 107689286A CN 201710531412 A CN201710531412 A CN 201710531412A CN 107689286 A CN107689286 A CN 107689286A
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- equalizing ball
- voltage equalizing
- pipe
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000009434 installation Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052802 copper Inorganic materials 0.000 claims abstract description 42
- 239000010949 copper Substances 0.000 claims abstract description 42
- 239000012212 insulator Substances 0.000 claims abstract description 30
- 230000004888 barrier function Effects 0.000 claims abstract description 23
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 12
- 238000009826 distribution Methods 0.000 abstract description 5
- 230000005684 electric field Effects 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 244000227633 Ocotea pretiosa Species 0.000 description 1
- 235000004263 Ocotea pretiosa Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulators (AREA)
Abstract
The outlet shielding construction and its installation method of a kind of 500kV high-power transformers high-voltage connection, are related to field transformer.Traditional 500kV lead outlets, complicated, space-consuming is big, easily triggers partial discharge.Present invention additionally comprises balance pipe, sleeve pipe voltage equalizing ball and bushing, the bottom of sleeve pipe voltage equalizing ball is stretched into the upper end of balance pipe, and the top of sleeve pipe voltage equalizing ball is stretched into the bottom of bushing；Sleeve pipe voltage equalizing ball is externally provided with 3 formable layer insulating parts, and stay curtain is provided between every two layers of molded insulator；Balance pipe includes shielding copper pipe, insulating barrier, and insulating barrier is externally provided with 2 formable layer insulating parts, and stay curtain is equipped between inside and outside two layers of molded insulator and between insulating barrier and internal layer molded insulator, and shielding copper pipe is provided with end molded insulator；Lead top, shielding copper pipe are connected with sleeve pipe voltage equalizing ball by equipotential line.The technical program reduces space hold, improves the Electric Field Distribution on lead and sleeve pipe voltage equalizing ball surface, significantly reduces insulation distance in lead oil.
Description
Technical field
The present invention relates to field transformer, especially a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection
And its installation method.
Background technology
Traditional 500kV leads outlet uses the graceful insulation systems of Wei De, this structure using multilayer square ring and multilayer paper web come
Split oil clearance, its is complicated, and space-consuming is big and is not easy to operate, while electric field is concentrated at lead and voltage equalizing ball, easily triggers
Partial discharge.
The content of the invention
The technical problem to be solved in the present invention and the technical assignment proposed are prior art to be improved with being improved,
A kind of outlet shielding construction of 500kV high-power transformers high-voltage connection is provided, to improve the electric field in the middle part of 500kV around outlet
Distribution, shorten in oil for the purpose of insulation distance.Therefore, the present invention takes following technical scheme.
A kind of outlet shielding construction of 500kV high-power transformers high-voltage connection, described lead include lead bottom and drawn
Line top, described lead bottom are connected with high-tension coil leading-out terminal, including balance pipe located at lead lower exterior face, located at drawing
The sleeve pipe voltage equalizing ball and bushing of line exterior upper portion, the bottom of sleeve pipe voltage equalizing ball is stretched into the upper end of described balance pipe, described
The bottom of bushing stretch into the top of sleeve pipe voltage equalizing ball；Described sleeve pipe voltage equalizing ball is externally provided with 3 formable layer insulating parts, and every two
Stay curtain is provided between formable layer insulating part to form oil-gap；Described balance pipe include shielding copper pipe outside the lead,
Insulating barrier outside shielding copper pipe, described insulating barrier are externally provided with 2 formable layer insulating parts, between inside and outside two layers of molded insulator
And stay curtain is equipped between insulating barrier and internal layer molded insulator to form oil-gap, shielding copper pipe is located at high-tension coil outlet
The end of side is provided with end molded insulator；Described lead top, shielding copper pipe and sleeve pipe voltage equalizing ball passes through equipotential line
Connect to keep same current potential.This insulation screen structure reduces space hold, improves lead and the electricity on sleeve pipe voltage equalizing ball surface
Field distribution, makes it more uniform, significantly reduces insulation distance in 500kV lead oil.
As further improving and supplementing to above-mentioned technical proposal, present invention additionally comprises following additional technical feature.
Inner flange is provided with described sleeve pipe voltage equalizing ball, the end that described shielding copper pipe is located in sleeve pipe voltage equalizing ball is provided with
End flanges, described shielding copper pipe and sleeve pipe voltage equalizing ball pass through end flanges and inner flange and bolt connection.Pass through flange adapter sleeve
Pipe voltage equalizing ball and shielding copper pipe, sound construction, and by the conduction of flange, sleeve pipe voltage equalizing ball and shielding copper pipe is in and is waited electricity
Position connection.
Every two one group insulating wrapping layer for being provided with sub-thread of described lead.By to every 2 one group of progress of high-voltage connection
Independent insulating wrapping, it can effectively lift electric property and insulation.
It is cold by cold-pressed joint and the cable connector in bushing after described equipotential line receives circle connection with lead
Pressure connection；Described lead and lifting one's head for high-tension coil is cold-pressed connection by cold-pressed joint.It is easy to connect to be cold-pressed connected mode, just
Crimped in scene.
Described shielding copper pipe is located at the equal round-corner transition of crest line inside and outside the end of high-tension coil outgoing line side.After crest line fillet,
It is easy to end molded insulator to be inserted into bottom.
The length of the bottom of sleeve pipe voltage equalizing ball is stretched between 40 ~ 60mm in the upper end of described balance pipe；Described high pressure
Sleeve pipe stretches into the depth on the top of sleeve pipe voltage equalizing ball between 50 ~ 70mm.It is equal by the way that balance pipe and bushing are stretched into sleeve pipe
Pressure ball is to certain depth, and relatively more firmly, insulating properties is more preferable for connection.
Described shielding copper pipe and the distance of high-tension coil are more than 10mm.Larger distance installation carry and use when not
Close contact can occur because of collision, be not in the short circuit of high-tension coil and shielding copper pipe.
Described bolt is stainless steel hexagon socket head cap screw.Stainless steel hexagon socket head cap screw is not only connected firmly conveniently, Er Qie
More difficult oxidation in circuit.
It is a further object to provide a kind of peace of the outlet shielding construction of 500kV high-power transformers high-voltage connection
Dress method, it comprises the following steps：
1）To shielding copper pipe mounting end molded insulator, insulating barrier is then wrapped up；
2）First layer stay curtain is set outside insulating barrier, then first layer molded insulator is set outside stay curtain, then exist successively
Second layer stay curtain and second layer molded insulator are set gradually outside first layer molded insulator；
3）Balance pipe is stretched into the bottom of sleeve pipe voltage equalizing ball and fixed with sleeve pipe voltage equalizing ball；
4）Lead is pressed 2 one group of carry out sub-thread insulating wrappings, then 2 one group of the sub-thread lead wrapping bandaged is integral
Lead, the lower end of equipotential line is fixed at the shielding copper pipe equipotential in sleeve pipe voltage equalizing ball, the upper end of equipotential line
Circle connection is received with lead, and is connected by being cold-pressed connected mode with the cable connector in bushing；
5）Lifting one's head for high-tension coil is cold-pressed connection with lead；
6）The square ring of high-tension coil outlet is installed, and outlet shielding construction device is fixed.Installation process is convenient and swift, work
Skill is simple.
Wrap up insulating barrier in the outer surface of the inside and outside 2 formable layer insulating part of described balance pipe.Lift insulation effect and knot
Structure intensity.
Beneficial effect：This shielding construction occupies little space, and the Electric Field Distribution on lead and sleeve pipe voltage equalizing ball surface is uniform, significantly
Insulation distance in the oil for reducing 500kV leads is spent, reduces manufacturing cost, improves economic benefit.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is A-A schematic cross-sectional views in Fig. 1 of the present invention.
Fig. 3 is close-up schematic view at B in Fig. 1 of the present invention.
Fig. 4 is close-up schematic view at C in Fig. 1 of the present invention.
In figure：1- leads；2- equipotential lines；3- cable connectors；4- sleeve pipe voltage equalizing balls；5- balance pipes；6- inner flanges；7-
End flanges；8- high-tension coils；9- bushings；10- square rings；11- cold-pressed joints；501- shields copper pipe；502- stay curtains；503-
Molded insulator；504- ends molded insulator.
Embodiment
Technical scheme is described in further detail below in conjunction with Figure of description.
As Figure 1-4, a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection, lead 1 include lead 1
Bottom and the top of lead 1, the bottom of lead 1 is connected with the leading-out terminal of high-tension coil 8, including the balance pipe located at the lower exterior face of lead 1
5th, stretched into located at the sleeve pipe voltage equalizing ball 4 and bushing 9 of the exterior upper portion of lead 1, the upper end of balance pipe 5 under sleeve pipe voltage equalizing ball 4
The top of sleeve pipe voltage equalizing ball 4 is stretched into portion, the bottom of bushing 9；Sleeve pipe voltage equalizing ball 4 is externally provided with 3 formable layer insulating parts 503, often
Stay curtain 502 is provided between two layers of molded insulator 503 to form oil-gap；Balance pipe 5 includes the shielding copper outside lead 1
Pipe 501, the insulating barrier outside shielding copper pipe 501, insulating barrier are externally provided with 2 formable layer insulating parts 503, inside and outside two layers of profiled insulation
Stay curtain 502 is equipped between part 503 and between insulating barrier and internal layer molded insulator 503 to form oil-gap, shields copper pipe
501 are provided with end molded insulator 504 positioned at the end of the outgoing line side of high-tension coil 8；The top of lead 1, shielding copper pipe 501 and sleeve pipe
Voltage equalizing ball 4 is connected by equipotential line 2 to keep same current potential.This insulation screen structure reduces space hold, improves and draws
Line 1 and the Electric Field Distribution on the surface of sleeve pipe voltage equalizing ball 4, make it more uniform, significantly reduce in the oil of 500kV leads 1 insulation away from
From.
Inner flange 6 is provided with sleeve pipe voltage equalizing ball 4, the end that shielding copper pipe 501 is located in sleeve pipe voltage equalizing ball 4 is provided with end flanges
7, shield copper pipe 501 and sleeve pipe voltage equalizing ball 4 passes through end flanges 7 and inner flange 6 and bolt connection.Pressed by flange connection sleeve pipe
Ball 4 and shielding copper pipe 501, sound construction, and by the conduction of flange, makes sleeve pipe voltage equalizing ball 4 and shielding copper pipe 501 is in etc.
Current potential connects.
1 every two one group insulating wrapping layer for being provided with sub-thread of lead.By independent to 1 every 2 one group of carry out of high-voltage connection
Insulating wrapping, it can effectively lift electric property and insulation.
It is cold by cold-pressed joint 11 and the cable connector 3 in bushing 9 after equipotential line 2 receives circle connection with lead 1
Pressure connection；Lead 1 is cold-pressed connection with lifting one's head for high-tension coil 8 by cold-pressed joint 11.It is easy to connect to be cold-pressed connected mode, is easy to
Scene crimping.
Shielding copper pipe 501 is located at the equal round-corner transition of crest line inside and outside the end of the outgoing line side of high-tension coil 8.After crest line fillet, just
Bottom is inserted into end molded insulator 504.
The length of the bottom of sleeve pipe voltage equalizing ball 4 is stretched between 40 ~ 60mm in the upper end of balance pipe 5；Bushing 9 stretches into set
The depth on the top of pipe voltage equalizing ball 4 is between 50 ~ 70mm.Arrived by the way that balance pipe 5 and bushing 9 are stretched into sleeve pipe voltage equalizing ball 4
Certain depth, relatively more firmly, insulating properties is more preferable for connection.
The distance of shielding copper pipe 501 and high-tension coil 8 is more than 10mm.Larger distance will not when installation is carried and is used
Be not in the short circuit of high-tension coil 8 and shielding copper pipe 501 because close contact occurred in collision.
Bolt is stainless steel hexagon socket head cap screw.Stainless steel hexagon socket head cap screw is not only connected firmly conveniently, and in circuit
More difficult oxidation.
A kind of installation method of the outlet shielding construction of 500kV high-power transformers high-voltage connection, specifically includes procedure below：
1）First cotton be stained with alcohol to shielding the surfaces externally and internally of copper pipe 501 repeatedly sassafras wipe, confirm surface cleaning, then to shield copper pipe
501 mounting end molded insulators 504, then wrap up insulating barrier, thickness of insulating layer 8mm；
2）First layer stay curtain 502 is set outside insulating barrier, then first layer molded insulator 503 is set outside stay curtain 502,
Set gradually second layer stay curtain 502 and second layer molded insulator 503 outside first layer molded insulator 503 successively again, support
The seam crossing of bar curtain 502 is smooth, and the seam of stay curtain 502 will avoid the interface position of outside molded insulator 503, every layer into
Insulating barrier is wrapped up in the outer surface of type insulating part 503, and stay curtain 502 is replaced with corrugated board in the bending place of stay curtain 502；
3）The bottom that balance pipe 5 is stretched into sleeve pipe voltage equalizing ball 4, and by 8 stainless steel hexagon socket head cap screws by the end of balance pipe 5
Flange 7 is fixedly connected with the inner flange 6 of sleeve pipe voltage equalizing ball 4；
4）Lead 1 is pressed 2 one group of carry out sub-thread insulating wrappings, then 2 one group of the sub-thread lead 1 bandaged wrapped up into whole
Body lead 1, the lower end of equipotential line 2 is fixed on the inner flange 6 of sleeve pipe voltage equalizing ball 4 by stainless steel bolt, equipotential connects
Circle connection is received in the upper end of line 2 with lead 1, and is cold-pressed and connected by the cable connector 3 in cold-pressed joint 11 and bushing 9；
5）The lifting one's head of high-tension coil 8 carries out cold pressing by cold-pressed joint 11 with lead 1 and is connected；
6）The square ring 10 of the outlet of high-tension coil 8 is installed, and this shielding construction device is occurred by wooden piece and is fixed on transformer
Near high-voltage terminal.
In this example, insulating barrier is that crimped paper half is repeatedly wrapped up, and wrapping degrees of tensions will reach 167% ~ 200%;Shaping is exhausted
The insulating barrier of the outer surface of edge part 503 is that 8 ~ 10 layers of crimped paper half are repeatedly wrapped up；Lead 1 and equipotential link are copper litz wire；It is interior
Flange 6 and end flanges 7 are copper flange；2 one group of sub-thread lead 1 and the insulating wrapping of equipotential line 2 are tape half
Repeatedly wrap up two layers, lead 1 is overall repeatedly to be wrapped up together with tape half.
The outlet shielding construction and its installation method of a kind of 500kV high-power transformers high-voltage connection shown in figure 1 above -4
Be the present invention specific embodiment, embodied substantive distinguishing features of the present invention and progress, can according to reality use needs,
Under the enlightenment of the present invention, carry out the equivalent modifications of shape, structure etc. to it, this programme protection domain row.
Claims (10)
1. a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection, described lead（1）Including lead（1）Bottom
And lead（1）Top, described lead（1）Bottom and high-tension coil（8）Leading-out terminal connects, it is characterised in that：Also include being located at
Lead（1）The balance pipe of lower exterior face（5）, located at lead（1）The sleeve pipe voltage equalizing ball of exterior upper portion（4）And bushing（9）, institute
The balance pipe stated（5）Upper end stretch into sleeve pipe voltage equalizing ball（4）Bottom, described bushing（9）To stretch into sleeve pipe equal for bottom
Pressure ball（4）Top；Described sleeve pipe voltage equalizing ball（4）It is externally provided with 3 formable layer insulating parts（503）, every two layers of molded insulator
（503）Between be provided with stay curtain（502）To form oil-gap；Described balance pipe（5）Including located at lead（1）Outer shielding copper
Pipe（501）, located at shielding copper pipe（501）Outer insulating barrier, described insulating barrier are externally provided with 2 formable layer insulating parts（503）, it is inside and outside
Two layers of molded insulator（503）Between and insulating barrier and internal layer molded insulator（503）Between be equipped with stay curtain（502）With shape
Into oil-gap, copper pipe is shielded（501）Positioned at high-tension coil（8）The end of outgoing line side is provided with end molded insulator（504）；It is described
Lead（1）Top, shielding copper pipe（501）With sleeve pipe voltage equalizing ball（4）Pass through equipotential line（2）Connect to keep same current potential.
2. a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection according to claim 1, its feature exist
In：Described sleeve pipe voltage equalizing ball（4）It is interior to be provided with inner flange（6）, described shielding copper pipe（501）Positioned at sleeve pipe voltage equalizing ball（4）It is interior
End be provided with end flanges（7）, described shielding copper pipe（501）With sleeve pipe voltage equalizing ball（4）Pass through end flanges（7）And inner flange
（6）And bolt connection.
3. a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection according to claim 1, its feature exist
In：Described lead（1）The every two one group insulating wrapping layer for being provided with sub-thread.
4. a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection according to claim 1, its feature exist
In：Described equipotential line（2）With lead（1）After receiving circle connection, pass through cold-pressed joint（11）With bushing（9）In electricity
Cable joint（3）Cold pressing connection；Described lead（1）With high-tension coil（8）Lift one's head and pass through cold-pressed joint（11）Cold pressing connection.
5. a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection according to claim 1, its feature exist
In：Described shielding copper pipe（501）Positioned at high-tension coil（8）The equal round-corner transition of crest line inside and outside the end of outgoing line side.
6. a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection according to claim 1, its feature exist
In：Described balance pipe（5）Upper end stretch into sleeve pipe voltage equalizing ball（4）Bottom length between 40 ~ 60mm；Described high pressure
Sleeve pipe（9）Stretch into sleeve pipe voltage equalizing ball（4）Top depth between 50 ~ 70mm.
7. a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection according to claim 1, its feature exist
In：Described shielding copper pipe（501）With high-tension coil（8）Distance be more than 10mm.
8. a kind of outlet shielding construction of 500kV high-power transformers high-voltage connection according to claim 2, its feature exist
In：Described bolt is stainless steel hexagon socket head cap screw.
9. the installation method of the outlet shielding construction using a kind of 500kV high-power transformers high-voltage connection described in claim 1,
It is characterized in that comprise the following steps：
1) to shielding copper pipe（501）Mounting end molded insulator（504）, then wrap up insulating barrier；
2) first layer stay curtain is set outside insulating barrier（502）, then in stay curtain（502）Outer setting first layer molded insulator
（503）, then successively in first layer molded insulator（503）Set gradually second layer stay curtain outside（502）It is exhausted with the second formable layer
Edge part（503）；
3) by balance pipe（5）Stretch into sleeve pipe voltage equalizing ball（4）Bottom and with sleeve pipe voltage equalizing ball（4）It is fixed；
4) lead（1）By 2 one group of carry out sub-thread insulating wrappings, then 2 one group of the sub-thread lead bandaged（1）Wrapping
Integral lead（1）, equipotential line（2）Lower end be fixed on sleeve pipe voltage equalizing ball（4）Interior shielding copper pipe（501）Equipotential
Place, equipotential line（2）Upper end and lead（1）Circle connection is received, and by being cold-pressed connected mode and bushing（9）Interior electricity
Cable joint（3）Connection；
5) high-tension coil（8）Lift one's head and lead（1）Cold pressing connection；
6) high-tension coil is installed（8）The square ring of outlet（10）, and outlet shielding construction device is fixed.
A kind of 10. installation side of the outlet shielding construction of 500kV high-power transformers high-voltage connection according to claim 9
Method, it is characterised in that：Described balance pipe（5）Inside and outside 2 formable layer insulating part（503）Outer surface wrap up insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710531412.1A CN107689286A (en) | 2017-07-03 | 2017-07-03 | The outlet shielding construction and its installation method of a kind of 500kV high-power transformers high-voltage connection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710531412.1A CN107689286A (en) | 2017-07-03 | 2017-07-03 | The outlet shielding construction and its installation method of a kind of 500kV high-power transformers high-voltage connection |
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| CN107689286A true CN107689286A (en) | 2018-02-13 |
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ID=61152746
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Cited By (7)
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|---|---|---|---|---|
| CN110993283A (en) * | 2019-12-24 | 2020-04-10 | 保定天威保变电气股份有限公司 | Voltage-regulating outgoing line structure and configuration method thereof |
| CN111986883A (en) * | 2020-06-19 | 2020-11-24 | 阳光电源股份有限公司 | Solid-state transformer and preparation method thereof |
| CN112002544A (en) * | 2020-07-16 | 2020-11-27 | 山东电力设备有限公司 | Design method of novel ultra-high voltage wire outlet device and wire outlet device structure |
| CN112103056A (en) * | 2020-08-10 | 2020-12-18 | 山东电力设备有限公司 | Converter transformer network side wire outlet device |
| CN112863828A (en) * | 2021-01-13 | 2021-05-28 | 山东电力设备有限公司 | 750kV transformer outgoing line device and installation process method |
| CN112908659A (en) * | 2021-03-22 | 2021-06-04 | 保定天威保变电气股份有限公司 | Valve side lead assembling structure and assembling method |
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| CN110993283A (en) * | 2019-12-24 | 2020-04-10 | 保定天威保变电气股份有限公司 | Voltage-regulating outgoing line structure and configuration method thereof |
| CN110993283B (en) * | 2019-12-24 | 2023-11-21 | 保定天威保变电气股份有限公司 | Voltage-regulating outgoing line structure and configuration method thereof |
| CN111986883A (en) * | 2020-06-19 | 2020-11-24 | 阳光电源股份有限公司 | Solid-state transformer and preparation method thereof |
| CN111986883B (en) * | 2020-06-19 | 2022-11-15 | 阳光电源股份有限公司 | Solid-state transformer and preparation method thereof |
| CN112002544A (en) * | 2020-07-16 | 2020-11-27 | 山东电力设备有限公司 | Design method of novel ultra-high voltage wire outlet device and wire outlet device structure |
| CN112103056A (en) * | 2020-08-10 | 2020-12-18 | 山东电力设备有限公司 | Converter transformer network side wire outlet device |
| CN112863828A (en) * | 2021-01-13 | 2021-05-28 | 山东电力设备有限公司 | 750kV transformer outgoing line device and installation process method |
| CN112908659A (en) * | 2021-03-22 | 2021-06-04 | 保定天威保变电气股份有限公司 | Valve side lead assembling structure and assembling method |
| CN113611499A (en) * | 2021-07-23 | 2021-11-05 | 保定天威保变电气股份有限公司 | Detachable network side lead butt joint structure of converter transformer and use method |
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