CN206610722U - A kind of 110KV dry-type three-phase transformers - Google Patents
A kind of 110KV dry-type three-phase transformers Download PDFInfo
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- CN206610722U CN206610722U CN201720425156.3U CN201720425156U CN206610722U CN 206610722 U CN206610722 U CN 206610722U CN 201720425156 U CN201720425156 U CN 201720425156U CN 206610722 U CN206610722 U CN 206610722U
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Abstract
A kind of 110KV dry-type three-phase transformers, are related to field transformer.Current 110KV transformers often use oil-immersed type transformer, there is disaster hidden-trouble.The utility model includes iron core, support, high-tension coil, low-voltage coil, board-like insulation folder, arm-tie, upper portion insulating and bottom insulator, and insulating cylinder is provided between high-tension coil and low-voltage coil, iron core casing is provided between low-voltage coil and iron core；The lower end of high-tension coil is sequentially provided with downwards solid insulation end circle and solid insulation backing plate, the lower section of solid insulation backing plate is provided with board-like insulation folder and bottom insulator, the lower end of bottom insulator is located on steel plate, and branch is set up in the lower section of steel plate and board-like insulation folder and is fastenedly connected with steel plate；Provided with board-like insulation folder and upper portion insulating above solid insulation backing plate, metal reinforcing plates are provided with above board-like insulation folder and upper portion insulating.The technical program realizes the miniaturization of 110kv transformers, improves flameproof effect, reduces transformer and supporting cost of preventing fires.
Description
Technical field
The utility model is related to field transformer, especially a kind of 110KV dry-type three-phase transformers.
Background technology
At present in the world, the 110kv dry-type transformers still without commercialized running, but its market demand is vigorous,
Such as each metropolitan subway underground power main transformer be all 110kv oil-immersed type transformer, costliness and oil immersion based on the underground space
The fireproof complexity of transformer, disaster hidden-trouble is had using 110kv oil-immersed type transformer, it is necessary to which supporting high standard is prevented
Fire measure, it is huge to this input, moreover be placed on underground 110kv oil-immersed type transformers and typically independently take straight-through ground
Vertical Well, and equipped with skylight, space waste is serious, constrains the minimizing of 110kv underground substations, intensive and popularization.
Utility model content
The technical problems to be solved in the utility model and propose technical assignment be to prior art carry out improve with
Improve there is provided a kind of 110KV dry-type three-phase transformers, to realize miniaturization and the supporting cost of reduction fire prevention of 110KV transformer stations
For the purpose of.Therefore, the utility model takes following technical scheme.
A kind of 110KV dry-type three-phase transformers, including iron core, support, high-tension coil, low-voltage coil, board-like insulation folder,
Arm-tie, upper portion insulating and bottom insulator, between described high-tension coil and low-voltage coil be provided with insulating cylinder, low-voltage coil with
Iron core casing is provided between iron core；The lower end of high-tension coil is sequentially provided with downwards solid insulation end circle and solid insulation backing plate, Gu
The lower section of body insulating pad is provided with board-like insulation folder and bottom insulator, and the lower end of bottom insulator is located on steel plate, described
Branch be set up in the lower section of steel plate and board-like insulation folder and be fastenedly connected with steel plate；The upper end of high-tension coil is sequentially provided with upwards
Solid insulation end is enclosed and solid insulation backing plate, provided with board-like insulation folder and upper portion insulating, plate above solid insulation backing plate
Metal reinforcing plates are provided with above formula insulation folder and upper portion insulating, described metal reinforcing plates compress board-like insulating blanked clamper part,
And be fastenedly connected by nail pressing with upper portion insulating；The bottom of described arm-tie is connected with support, and the top of arm-tie passes through metal
Reinforcing plate is simultaneously fixed with metal reinforcing plates, and position of the top higher than metal reinforcing plates of arm-tie is provided with horizontal device body lifting eye.
By above structure, 110kv dry-type transformers must be realized by facilitating, and can substitute now commonly used 110kv three-phase oil immersions
Transformer, greatly reduces volume, realizes the miniaturization of 110kv transformers, and dry-type transformer becomes compared to oil immersed type
Depressor, flameproof effect is good, and fire prevention auxiliary facility is relatively easy, supporting advantage of lower cost of preventing fires.
As further improving and supplementing to above-mentioned technical proposal, it is special that the utility model also includes following supplementary technology
Levy.
Described high-tension coil is made up of two or more independent windings, and each winding includes adjacent with remaining winding
The conventional line segment in line segment and each winding is entangled with, described conventional line segment is the connection between multi-layer cylindrical line segment, winding
Line is welded in the outside of winding；The built-in shielding cylinder of winding is placed on the outside diameter of two adjacent segments；Each winding
Outside diameter and internal side diameter are equipped with the encapsulated layer of resin-cast, and the end of winding is provided with the insulating barrier of resin-cast.Pass through multilayer
The conventional line segment of drum type brake and winding adjacent regions are entangled with line segment, then by the insulation system of resin-cast, high-tension coil
Structure is reliable and stable, and insulation flameproof effect is good.
Described built-in shielding cylinder is open provided with overlap joint, and insulating materials, described built-in shielding cylinder are provided with overlap joint opening
The metal foil edge rolling provided with array punching for being thickness between 0.5-1mm is formed, and the periphery of metal foil and punching is round edge
Edge.By setting overlap joint opening and array punching on built-in shielding cylinder, not only possess preferable shield effectiveness, and be easy to
Encapsulated layer is combined closely, sound construction.
Described insulating cylinder includes upper insulating cylinder and lower insulating cylinder, and upper insulating cylinder includes upper shell, under lower insulating cylinder includes
In cylinder, described upper shell insertion lower shell.By the way that insulating cylinder is divided into upper insulating cylinder and lower insulating cylinder, it is easy to manufacture, on
In cylinder insertion lower shell, upper shell is inserted compared to lower shell, is more convenient to install, and due to laterally there is 2 layers exhausted
Edge barrel is thick, makes have preferable insulation effect between high-tension coil and low-voltage coil.
The upper end of upper shell and the lower end of lower shell are outwards turned down, and form upper planar rings and lower plane ring respectively, upper flat
The periphery of face ring and lower plane ring separately down with upward bending.By upper planar rings and lower plane ring, it is easy to and solid insulation
End circle is in contact compression, and the bending of the periphery of upper planar rings and lower plane ring enhances structural strength.
Described solid insulation end circle include end face ring, the cushion block body and multiple concentric ring poured into a mould with end face ring one around
Muscle, described cushion block body and circular muscle are respectively positioned on side of the end face ring towards insulating cylinder, the planar rings phase of cushion block body and insulating cylinder
Support, described solid insulation end circle is integrally poured into a mould for resin.The setting of cushion block body is easy to the planar rings with insulating cylinder mutually to compress, many
The setting around muscle is easy to increase insulation effect again.
Described end face ring is provided with multiple through holes for being used to ventilate.It is easy to ventilation.
Described solid insulation backing plate includes A phase solid insulations backing plate, B phase solid insulation backing plates and C phase solid insulation pads
Plate, described B phase solid insulations backing plate is located between A phase solid insulation backing plates and C phase solid insulation backing plates, and with A phase solids
Insulating pad and C phase solid insulation backing plates are connected.It is connected solid and reliable, structural stability is good.
Described solid insulation backing plate is provided with multiple lead to the hole site identical through holes with end face ring.It is easy to ventilation.
On described solid insulation backing plate clamping plate groove, the clamping plate of described board-like insulation folder are provided with towards the side of iron core
Insert in clamping plate groove.By the way that the clamping plate of board-like insulation folder is inserted in clamping plate groove, connect more firm, it is reliable and stable.
Beneficial effect：By realizing 110kv dry-type transformer, the miniaturization of 110kv transformers is realized, change is reduced
Depressor space-consuming, improves flameproof effect, simplifies the supporting drop facility of fire prevention, greatly reduce transformer and prevent fires it is supporting into
This, is easy to large-scale promotion.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model high-tension coil principle assumption diagram.
Fig. 3 is shielding cylinder end built in the utility model to structural representation.
Fig. 4 is shielding cylinder lateral structure schematic diagram built in the utility model.
Fig. 5 is insulating barrel structure schematic diagram on the utility model.
Fig. 6 is insulating barrel structure schematic diagram under the utility model.
Fig. 7 is the utility model solid insulation end coil structures schematic diagram.
Fig. 8 is the utility model solid insulation backing structure schematic diagram.
In figure：1- supports；2- arm-ties；3- metal reinforcing plates；4- nail pressings；5- upper portion insulatings；6- iron core casings；On 7-
Insulating cylinder；8- high-tension coils；9- low-voltage coils；10- solid insulations end is enclosed；11- solid insulation backing plates；The board-like insulation folders of 12-；
13- bottoms insulator；14- steel plates；15- iron cores；Insulating cylinder under 16-；201- device body lifting eyes；The upper planar rings of 701-；On 702-
Cylinder；801- routine line segments；802- is entangled with line segment；803- connecting lines；Shielding cylinder built in 804-；805- outside diameters；806- insulate
Layer；807- internal side diameters；808- encapsulated layers；80401- overlap joint openings；80402- punchings；1001- is around muscle；1002- cushion block bodies；
1003- end face rings；1004- through holes；1101-A phase solid insulation backing plates；1102- B phase solid insulation backing plates；1103-C phase solids
Insulating pad；1104- through holes；1105- clamping plate grooves；1601- lower shells；1602- lower plane rings.
Embodiment
The technical solution of the utility model is described in further detail below in conjunction with Figure of description.
As shown in figures 1-8, a kind of 110KV dry-type three-phase transformers, including iron core 15, support 1, high-tension coil 8, low-voltage line
Circle 9, board-like insulation folder 12, arm-tie 2, upper portion insulating 5 and bottom insulator 13, set between high-tension coil 8 and low-voltage coil 9
There is insulating cylinder, iron core casing 6 is provided between low-voltage coil 9 and iron core 15；It is exhausted that the lower end of high-tension coil 8 is sequentially provided with downwards solid
Acies circle 10 and solid insulation backing plate 11, the lower section of solid insulation backing plate 11 is provided with board-like insulation folder 12 and bottom insulator
13, the lower end of bottom insulator 13 is located on steel plate 14, and support 1 is located at the lower section of steel plate 14 and board-like insulation folder 12 and and steel
Plate 14 is fastenedly connected；The upper end of high-tension coil 8 is sequentially provided with solid insulation end circle 10 and solid insulation backing plate 11 upwards, and solid is exhausted
Provided with board-like insulation folder 12 and upper portion insulating 5 above edge backing plate 11, board-like insulation folder 12 and upper portion insulating 5 it is upper
Face is provided with metal reinforcing plates 3, and metal reinforcing plates 3 compress board-like insulating blanked clamper part 12, and are fastened by nail pressing 4 and upper portion insulating 5
Connection；The bottom of arm-tie 2 is connected with support 1, and the top of arm-tie 2 is fixed through metal reinforcing plates 3 and with metal reinforcing plates 3, is drawn
Position device body lifting eye 201 provided with transverse direction of the top of plate 2 higher than metal reinforcing plates 3.
In order to which structure is reliable and stable and flameproof effect is good, high-tension coil 8 is made up of multiple independent windings, and each winding is equal
Including the conventional line segment 801 be entangled with line segment 802 and each winding in adjacent with remaining winding, conventional line segment 801 is justified for multilayer
Connecting line 803 between cartridge type line segment, winding is welded in the outside of winding；The built-in shielding cylinder 804 of winding is placed on two
The outside diameter 805 of individual adjacent segments；The outside diameter 805 and internal side diameter 807 of each winding are equipped with the encapsulated layer of resin-cast
808, the end of winding is provided with the insulating barrier 806 of resin-cast.Pass through the conventional line segment 801 and winding adjacent portions of multi-layer cylindrical
Line segment 802 is entangled with position, then by the insulation system of resin-cast, the structure of high-tension coil 8 is reliable and stable, insulate flameproof effect
It is good.
In order to realize preferable shield effectiveness and built-in shielding cylinder 804 is combined closely with encapsulated layer 808, built-in shielding
Cylinder 804 overlaps and insulating materials is provided with opening 80401 provided with overlap joint opening 80401, and built-in shielding cylinder 804 is thickness in 0.5-
The metal foil edge rolling provided with array punching 80402 between 1mm is formed, and the periphery of metal foil and punching 80402 is rounded edges.
By setting overlap joint opening 80401 and array punching 80402 on built-in shielding cylinder 804, not only possess preferable shield effectiveness,
And be easy to combine closely with encapsulated layer 808, sound construction.
In order that having preferable insulation effect between high-voltage coil and low-voltage coil, insulating cylinder includes upper insulating cylinder 7 and lower insulating cylinder
16, upper insulating cylinder 7 includes upper shell 702, and lower insulating cylinder 16 is included in lower shell 1601, the insertion lower shell 1601 of upper shell 702.
By the way that insulating cylinder is divided into upper insulating cylinder 7 and lower insulating cylinder 16, it is easy in manufacture, the insertion lower shell 1601 of upper shell 702, compares
Upper shell 702 is inserted in lower shell 1601, is more convenient to install, and due to laterally there is 2 layers of insulating cylinder wall thickness, makes high pressure
There is preferable insulation effect between coil and low-voltage coil 9.
In order to strengthen the structural strength of upper planar rings 701 and lower plane ring 1602, the upper end of upper shell 702 and lower shell
1601 lower end is outwards turned down, and forms upper planar rings 701 and lower plane ring 1602, upper planar rings 701 and lower plane ring respectively
1602 periphery separately down with upward bending.By upper planar rings 701 and lower plane ring 1602, it is easy to enclose with solid insulation end
10 are in contact compression, and the bending of the periphery of upper planar rings 701 and lower plane ring 1602 enhances structural strength.
In order to be compressed with the planar rings of insulating cylinder and increase insulation effect, solid insulation end circle 10 includes end face ring
1003rd, the weight concentric ring of cushion block body 1002 and 4 with the one cast of end face ring 1003 is around muscle 1001, cushion block body 1002 and around muscle
1001 are respectively positioned on side of the end face ring 1003 towards insulating cylinder, and the planar rings of cushion block body 1002 and insulating cylinder offset, solid insulation
End circle 10 is that resin is integrally poured into a mould.The setting of cushion block body 1002 is easy to the planar rings with insulating cylinder mutually to compress, and 4 again around muscle 1001
Setting be easy to increase insulation effect.
For the ease of ventilation, end face ring 1003 is provided with 12 through holes 1004 for being used to ventilate around array.It is easy to lead to
Wind.
In order that firm and reliable connection, solid insulation backing plate 11 includes A phase solid insulations backing plate 1101, B phase solid insulations
Backing plate 1102 and C phase solid insulations backing plate 1103, B phase solid insulations backing plate 1102 are located at A phase solid insulations backing plate 1101 and C phases
Between solid insulation backing plate 1103, and it is connected with A phase solid insulations backing plate 1101 and C phase solid insulations backing plate 1103.Sting
Firm and reliable connection is closed, structural stability is good.
For the ease of ventilation, through hole 1004 position identical of the solid insulation backing plate 11 provided with 12 with end face ring 1003
Through hole 1104.It is easy to ventilation.
In order that connection is more firm, clamping plate groove 1105 is provided with towards the side of iron core 15 on solid insulation backing plate 11, it is board-like
In the clamping plate insertion clamping plate groove 1105 of insulation folder 12.By the way that the clamping plate of board-like insulation folder 12 is inserted in clamping plate groove 1105,
Connection is more firm, reliable and stable.
110kv dry-type transformers must be realized by facilitating, and can substitute now commonly used 110kv three-phase oil immersion transformations
Device, greatly reduces volume, realizes the miniaturization of 110kv transformers, and dry-type transformer is compared to oil-filled transformer,
Flameproof effect is good, and fire prevention auxiliary facility is relatively easy, supporting advantage of lower cost of preventing fires.
In urban track traffic in the application of 110kv underground substations, significantly subtracted using dry-type transformer space-consuming
Small, the transformer station than original oil immersion 110kv reduces more than one times, and integrated cost reduces by more than 50；In addition, as city is advised
The expansion of mould, the dry-type transformer underground substation that 110kv is set up in center urban district can be the power supply grade in urban district by current
110kv is arrived in common 35kv liftings, so that line loss is substantially reduced on the premise of the places of cultural interest in center urban district are not influenceed,
Be conducive to energy-conserving and environment-protective, safe power supply.
A kind of 110KV dry-type three-phase transformers shown in figure 1 above -8 are specific embodiment of the utility model, body
Reveal the utility model substantive distinguishing features and progress, can be according to actual use needs, under enlightenment of the present utility model, to it
Carry out shape, the equivalent modifications in terms of structure, this programme protection domain row.
Claims (10)
1. a kind of 110KV dry-type three-phase transformers, including iron core（15）, support（1）, high-tension coil（8）, low-voltage coil（9）, plate
Formula insulation folder（12）, arm-tie（2）, upper portion insulating（5）With bottom insulator（13）, it is characterised in that：Described high-voltage line
Circle（8）With low-voltage coil（9）Between be provided with insulating cylinder, low-voltage coil（9）With iron core（15）Between be provided with iron core casing（6）；It is high
Line ball circle（8）Lower end be sequentially provided with downwards solid insulation end circle（10）With solid insulation backing plate（11）, solid insulation backing plate
（11）Lower section be provided with board-like insulation folder（12）With bottom insulator（13）, bottom insulator（13）Lower end be located at steel plate
（14）On, described support（1）Located at steel plate（14）With board-like insulation folder（12）Lower section and and steel plate（14）It is fastenedly connected；
High-tension coil（8）Upper end be sequentially provided with upwards solid insulation end circle（10）With solid insulation backing plate（11）, solid insulation backing plate
（11）Above be provided with board-like insulation folder（12）With upper portion insulating（5）, board-like insulation folder（12）With upper portion insulating（5）
Above be provided with metal reinforcing plates（3）, described metal reinforcing plates（3）Compress board-like insulating blanked clamper part（12）, and pass through nail pressing（4）
With upper portion insulating（5）It is fastenedly connected；Described arm-tie（2）Bottom and support（1）Connection, arm-tie（2）Top through gold
Belong to reinforcing plate（3）And and metal reinforcing plates（3）It is fixed, arm-tie（2）Top be higher than metal reinforcing plates（3）Position provided with laterally
Device body lifting eye（201）.
2. a kind of 110KV dry-type three-phase transformers according to claim 1, it is characterised in that：Described high-tension coil（8）
It is made up of two or more independent windings, each winding is entangled with line segment including adjacent with remaining winding（802）With it is each around
Conventional line segment in group（801）, described conventional line segment（801）For multi-layer cylindrical line segment, the connecting line between winding（803）
Outside in winding is welded；The built-in shielding cylinder of winding（804）It is placed on the outside diameter of two adjacent segments（805）；Often
The outside diameter of individual winding（805）And internal side diameter（807）It is equipped with the encapsulated layer of resin-cast（808）, the end of winding is provided with tree
The insulating barrier of fat cast（806）.
3. a kind of 110KV dry-type three-phase transformers according to claim 2, it is characterised in that：Described built-in shielding cylinder
（804）Provided with overlap joint opening（80401）, overlap joint opening（80401）Place is provided with insulating materials, described built-in shielding cylinder（804）
Be thickness is provided with array punching between 0.5-1mm（80402）Metal foil edge rolling form, metal foil and punching（80402）
Periphery be rounded edges.
4. a kind of 110KV dry-type three-phase transformers according to claim 1, it is characterised in that：Described insulating cylinder includes
Upper insulating cylinder（7）With lower insulating cylinder（16）, upper insulating cylinder（7）Including upper shell（702）, lower insulating cylinder（16）Including lower shell
（1601）, described upper shell（702）Insert lower shell（1601）It is interior.
5. a kind of 110KV dry-type three-phase transformers according to claim 4, it is characterised in that：Upper shell（702）Upper end
And lower shell（1601）Lower end outwards turn down, form upper planar rings respectively（701）With lower plane ring（1602）, upper planar rings
（701）With lower plane ring（1602）Periphery separately down with upward bending.
6. a kind of 110KV dry-type three-phase transformers according to claim 1, it is characterised in that：Described solid insulation end
Circle（10）Including end face ring（1003）And end face ring（1003）The cushion block body of one cast（1002）With multiple concentric ring around muscle
（1001）, described cushion block body（1002）With circular muscle（1001）It is respectively positioned on end face ring（1003）Towards the side of insulating cylinder, pad
Block（1002）Offseted with the planar rings of insulating cylinder, described solid insulation end circle（10）Integrally poured into a mould for resin.
7. a kind of 110KV dry-type three-phase transformers according to claim 6, it is characterised in that：Described end face ring
（1003）Provided with multiple through holes for being used to ventilate（1004）.
8. a kind of 110KV dry-type three-phase transformers according to claim 1, it is characterised in that：Described solid insulation pad
Plate（11）Including A phase solid insulation backing plates（1101）, B phase solid insulation backing plates（1102）With C phase solid insulation backing plates（1103）,
Described B phase solid insulation backing plates（1102）Located at A phase solid insulation backing plates（1101）With C phase solid insulation backing plates（1103）It
Between, and with A phase solid insulation backing plates（1101）With C phase solid insulation backing plates（1103）It is connected.
9. a kind of 110KV dry-type three-phase transformers according to claim 8, it is characterised in that：Described solid insulation pad
Plate（11）Provided with multiple and end face ring（1003）Through hole（1004）Position identical through hole（1104）.
10. a kind of 110KV dry-type three-phase transformers according to claim 9, it is characterised in that：Described solid insulation pad
Plate（11）On towards iron core（15）Side be provided with clamping plate groove（1105）, described board-like insulation folder（12）Clamping plate insertion folder
Board slot（1105）In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720425156.3U CN206610722U (en) | 2017-04-21 | 2017-04-21 | A kind of 110KV dry-type three-phase transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720425156.3U CN206610722U (en) | 2017-04-21 | 2017-04-21 | A kind of 110KV dry-type three-phase transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206610722U true CN206610722U (en) | 2017-11-03 |
Family
ID=60167231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720425156.3U Withdrawn - After Issue CN206610722U (en) | 2017-04-21 | 2017-04-21 | A kind of 110KV dry-type three-phase transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206610722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981357A (en) * | 2017-04-21 | 2017-07-25 | 卧龙电气集团股份有限公司 | A kind of 110KV dry-type three-phase transformers |
-
2017
- 2017-04-21 CN CN201720425156.3U patent/CN206610722U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981357A (en) * | 2017-04-21 | 2017-07-25 | 卧龙电气集团股份有限公司 | A kind of 110KV dry-type three-phase transformers |
| CN106981357B (en) * | 2017-04-21 | 2019-04-02 | 卧龙电气集团股份有限公司 | A kind of 110KV dry-type three-phase transformer |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171103 Effective date of abandoning: 20190402 |
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| AV01 | Patent right actively abandoned |