CN205564482U - Assembly structure of oily formula distribution transformer high tension lead of metallic glass - Google Patents
Assembly structure of oily formula distribution transformer high tension lead of metallic glass Download PDFInfo
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- CN205564482U CN205564482U CN201620252275.9U CN201620252275U CN205564482U CN 205564482 U CN205564482 U CN 205564482U CN 201620252275 U CN201620252275 U CN 201620252275U CN 205564482 U CN205564482 U CN 205564482U
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Abstract
The utility model provides an assembly structure of oily formula distribution transformer high tension lead of metallic glass. The assembly structure of high tension lead includes three -phase high -pressure coil and arranges the tapping switch and the three high -pressure conducting rod of high -pressure coil top in, every looks high -pressure coil's a little over copper line is directly drawn forth and is formed the terminal lead wire of the first first lead wire of high pressure, branching lead wire and high pressure respectively, the last a plurality of shunting sleeve that is equipped with of tapping switch, every branching lead wire's tip inserts in the shunting sleeve of corresponding position and passes through the cold pressed joint, be connected with two wiring ears on every high -pressure conducting rod, three -phase high -pressure coil's high -pressure first head lead wire and the terminal lead wire of high pressure insert in the corresponding wiring ear respectively according to end to end's order in proper order and pass through the cold pressed joint. The utility model has the advantages of high -pressure coil's a little over copper line directly as the lead wire, need not to connect through adding hot welding, and simple structure, the preparation is easy, with low costs, the security is high.
Description
Technical field
This utility model relates to the technical field of high-voldage, is specifically related to the assembling structure of a kind of amorphous alloy oil immersion type distribution transformer high-voltage connection.
Background technology
Existing amorphous alloy oil immersion type distribution transformer high-voltage connection has that soldering connects, phosphor-copper is welded to connect and colds pressing and connect.It is all the Type of Welding through heating that soldering connection and phosphor-copper are welded to connect.The most a lot of producers use phosphor-copper welded connection technology, there is many drawbacks in this method, is mainly manifested in: copper is metal, is also the good conductor of heat, so the insulation near Winding tap can inevitably receive damage, even if not having on fire burning also can be dehydrated change carbide during welding；If over-heating, the performance of copper material can become fragile easily broken, and the operation to production and transformator is unfavorable.And existing connection of colding pressing is needed additionally to shear one section of copper cash and realized the connection of winding and shunting switch by a connecting tube, add an operation, increase a connection and will increase the risk of a bad connection, and processing is more numerous and diverse.
Chinese patent such as Publication No. CN104157448A, disclose the assembling structure of a kind of oil-filled transformer high-voltage connection, although the upper head of its tap lead is by going deep into colding pressing in the lead-in wire sleeve pipe in shunting switch connection, but the lower end of tap lead is welded together with the winding protruding head lead-in wire of transformator, although being set with bellows outside welding position, but still there is above-mentioned hidden danger.
Utility model content
The purpose of this utility model is, there is provided one to need not move through and add thermal weld, directly by the assembling structure lifting one's head a kind of amorphous alloy oil immersion type distribution transformer high-voltage connection being directly connected with shunting switch of coil, to overcome the deficiencies in the prior art, reduce installation step and the tap part of high-voltage connection, the method optimizing high-voltage connection assembling, reduces the potential safety hazard of high-voltage connection junction.
For achieving the above object, this utility model adopts the following technical scheme that
The assembling structure of a kind of amorphous alloy oil immersion type distribution transformer high-voltage connection, including three-phase high voltage coil and be placed in the shunting switch above high-tension coil and three high-voltage conductive rods；Especially: the copper cash of lifting one's head of described every phase high-tension coil directly leads out formation high pressure first head lead-in wire, tap lead and high pressure end leads respectively；Described shunting switch is provided with several tap sleeves, in the tap sleeve of the end insertion correspondence position of described every tap lead and by colding pressing connection；The high-tension coil respective high pressure first head lead-in wire of described three-phase and high pressure end leads are colded pressing connection with connecting ear respectively；According to using three high-voltage conductive rods as three end points of triangle, each high-voltage conductive rod two connecting ears of connection, three-phase high voltage coil as the principle of three sides of a triangle, each connection have the connecting ear of high pressure first head lead-in wire or high pressure end leads be connected in turn on high-voltage conductive rod；In described each tap sleeve, the filling rate of bare copper wire is 60%～85%；In described each connecting ear, the filling rate of bare copper wire is also 60%～85%.
For strengthening the insulating properties of lead-in wire of high-tension coil, it is to avoid overheated and produce pyrophoric risk, the most described every high pressure first head lead-in wire, tap lead and high pressure end leads its be each all set with wrinkle paper tube in exposed part surface；The surface of described each high-voltage conductive rod is also set with wrinkle paper tube.
For guaranteeing that tap lead is fully contacted with the tap sleeve of shunting switch, reduce loose contact and the risk of interface easy fracture, if its filling rate that makes that the end of every tap lead is just inserted after being folded into dried layer in tap sleeve reaches 60%～85%, and the end of every tap lead folds and inserts the length in tap sleeve no less than 15mm.
Similarly, for guarantee high pressure first head lead-in wire, high pressure end leads respectively with being fully contacted of connecting ear, reduce loose contact and the risk of interface easy fracture, if its filling rate that makes that described high pressure first head lead-in wire and the respective end of high pressure end leads are inserted after being folded into dried layer in the connecting ear of correspondence reaches 60%～85%, described every high pressure first head lead-in wire with every high pressure end leads its each insert in corresponding connecting ear a length of no less than 15mm.
The assembling structure of a kind of amorphous alloy oil immersion type distribution transformer high-voltage connection described in the utility model, through the following steps that preparation:
(1) copper cash of lifting one's head of the high-tension coil of A, B, C three-phase is the most each arranged straight, lift one's head after copper cash bending for every, reserve enough length and peel off the insulating barrier of copper line surface and form lead-in wire；The copper cash of lifting one's head of the high-tension coil of every phase draws high pressure first head lead-in wire, tap lead and high pressure end leads respectively；
(2) lifting one's head of described every phase high-tension coil is not stripped the part of insulating barrier in copper cash, loads in crimped paper pipe by root set, and as the insulated part of lead-in wire, and the root of wrinkle paper tube uses white glue with vinyl to cement；
(3) choose the shunting switch of regulation on request, will insert in tap sleeve corresponding in shunting switch by root after the tap lead bending of every phase high-tension coil；If the end of tap lead is just inserted in tap sleeve after being folded into dried layer, the filling rate of the bare copper wire in tap sleeve is made to reach 60%～85%；Then using cold-pressing tools to carry out, by root tap sleeve, connection of colding pressing, each tap sleeve is at least colded pressing twice；
The first head of high pressure of every phase high-tension coil being gone between individually colds pressing with connecting ear connects and the high pressure end leads of every phase high-tension coil is the most individually colded pressing connection with connecting ear；If the end of every high pressure first head lead-in wire and every high pressure end leads is just inserted in connecting ear after being folded into dried layer, the filling rate of bare copper wire in connecting ear is made to reach 60%～85%；
(4) each high-voltage conductive rod all uses crimped paper pipe box to install, and exposes the connecting hole bit position of copper nut and self-locking nut；According to using three high-voltage conductive rods as three end points of triangle, each high-voltage conductive rod two connecting ears of connection, three-phase high voltage coil as the principle of three sides of a triangle, each connection have the high pressure first head lead-in wire of A, B, C three-phase high voltage coil or the connecting ear of high pressure end leads are connected in turn on high-voltage conductive rod；Connecting ear is connected on copper nut and the self-locking nut of high-voltage conductive rod；Then use crimped paper to bandage the part that each copper nut and self-locking nut are connected with connecting ear, and use white glue with vinyl to cement；?.
For strengthening the insulating properties lifting one's head copper cash of high-tension coil, may also include step (5), i.e. every phase high-tension coil lift one's head on copper cash, bare copper wire and the adjoiner that wrapped up by insulating barrier, use insulating cloth tape to tighten, and at knotting, coat white glue with vinyl cement.
Further, for increasing the contact performance of tap lead and shunting switch, and increase the contact performance of high pressure first head lead-in wire and high pressure end leads and connecting ear, after described step (1), also include that the bare copper wire part by first for high pressure head lead-in wire, tap lead and high pressure end leads wards off the operation of stannum.
In step (1), if the copper cash of lifting one's head of high-tension coil is enamel insulated round copper wire, then stripping lacquerware is used to be removed by copper line surface insullac；If the copper cash of lifting one's head of high-tension coil is enamel-cover flat type copper wire, then welding gun is used to add heat abstraction copper line surface insullac；If the copper cash of lifting one's head of high-tension coil is film bag flat type copper wire, then remove copper line surface film layer with blade.Generally, described every phase high-tension coil to lift one's head the bare copper wire after copper cash stripping insulation layer a length of no less than 50mm, so as to be connected with shunting switch or high-voltage conductive rod.
For ensureing that the tap lead of high-tension coil inserts in tap sleeve and has enough areas and length, to reduce interface fracture and the risk of loose contact, the end of every tap lead be folded into no less than two-layer and insert in tap sleeve a length of no less than 15mm.Similarly, every high pressure first head lead-in wire and its respective end of high pressure end leads are also folded into no less than two-layer and insert the length in connecting ear also for no less than 15mm.
The assembling structure of the high-voltage connection of prior art, the most separately arranges lead-in wire and weld with lifting one's head of high-tension coil, and for cost-effective, lead-in wire is employing diameter less metal wire, and the filling rate tapping the metal wire in sleeve and connecting ear is about 30%～50%.Generally there is lead-in wire and be connected built on the sand with tap sleeve or connecting ear in the structure of prior art, on the one hand it is easily caused off-line owing to the lead-in wire filling rate in tap sleeve or connecting ear is too small, on the other hand too small due to contact area, the most overheated and coking during work, cause interface to damage.Assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection that the present invention provides and preparation method thereof require that, if the end of the tap lead that high-tension coil is drawn must be inserted in the tap sleeve in shunting switch after being folded into dried layer, the filling rate of the bare copper wire in tap sleeve must reach 60%～85%；If the high pressure first head lead-in wire that high-tension coil is drawn and its respective end of high pressure end leads also must be inserted in connecting ear after being folded into dried layer, the bare copper wire filling rate in connecting ear also must reach 60%～85%.The shortcoming that such design can efficiently solve prior art.
Advantage of the present utility model is: high-tension coil lift one's head copper cash directly as lead-in wire, it is not necessary to through adding thermal weld, it is ensured that lead-in wire insulation environment around is without damage, be also prevented from copper cash because over-heating causes becoming fragile easily broken；Need not wire folder and fix high-voltage connection, save the wire folder cost of high-voltage connection；Need not be accurately positioned the position of shunting switch, with insulant colligation after connection of colding pressing；Improve production efficiency and save the production time, reduce production cost, install during shunting switch simpler fast, the paper bag circular copper wire welding used than tradition is more easily installed, but also has retractility, the most easily broken, it is ensured that the operation safety of transformator.
Accompanying drawing explanation
Fig. 1 is the overall schematic of the assembling structure of the amorphous alloy oil immersion type distribution transformer high-voltage connection of embodiment；
Fig. 2 is the right TV structure figure of the assembling structure of the amorphous alloy oil immersion type distribution transformer high-voltage connection of embodiment；
Fig. 3 is that in Fig. 2, at K, shunting switch taps the connection enlarged diagram of sleeve；
Fig. 4 is the connection enlarged diagram of the tap lead wire of high-tension coil and high-voltage conductive rod at I in Fig. 2；
Reference: 1-A phase high-tension coil；The first head of 11-A phase high pressure goes between；12-A phase tap lead；13-A phase high pressure end leads；2-B phase high-tension coil；The first head of 21-B phase high pressure goes between；22-B phase tap lead；23-B phase high pressure end leads；3-C phase high-tension coil；The first head of 31-C phase high pressure goes between；32-C phase tap lead；33-C phase high pressure end leads；4-shunting switch；41-taps sleeve；5-the first high-voltage conductive rod；6-the second high-voltage conductive rod；7-the 3rd high-voltage conductive rod；71-the 5th connecting ear；72-the 6th connecting ear；8-wrinkle paper tube；9-insulating cloth tape.
Detailed description of the invention
Below in conjunction with accompanying drawing, amorphous alloy oil immersion type distribution transformer high-voltage connection of the present utility model is assembled structure and preparation method thereof and makes detailed elaboration.
As shown in Figures 1 to 4, a kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection, including A phase high-tension coil 1, B phase high-tension coil 2, C phase high-tension coil 3, three-phase high-tension coil be provided above shunting switch the 4, first high-voltage conductive rod the 5, second high-voltage conductive rod 6 and the 3rd high-voltage conductive rod 7.
The copper cash of lifting one's head of A phase high-tension coil 1 directly leads out 11,6 A phase tap lead 12 and A phase high pressure end leads 13 of formation A phase high pressure first head lead-in wire respectively.The copper cash of lifting one's head of B phase high-tension coil 2 directly leads out 21,6 B phase tap lead 22 and B phase high pressure end leads 23 of formation B phase high pressure first head lead-in wire respectively.The copper cash of lifting one's head of C phase high-tension coil 3 directly leads out 31,6 C phase tap lead 32 and C phase high pressure end leads 33 of formation C phase high pressure first head lead-in wire respectively.Shunting switch 4 is provided with several for being respectively connected to A phase tap lead 12, the tap sleeve 41 of B phase tap lead 22 and C phase tap lead 32.Described A phase tap lead 12, the end of B phase tap lead 22 and C phase tap lead 32 are inserted in the tap sleeve 41 of correspondence position after being folded into bilayer respectively, connection of colding pressing.For guaranteeing quality of connection, in each tap sleeve 41, the intubating length at least 15mm of copper cash and the filling rate of copper cash need to reach 60%～85%.The surface of the exposed part of described every tap lead is all set with wrinkle paper tube 8, and wrinkle paper tube 8 is cemented with tap lead by white glue with vinyl.
According to delta connection rule wiring: connection of colding pressing in the first connecting ear is inserted, after folding, in the end of A phase high pressure first head lead-in wire 11, connection of colding pressing in the second connecting ear is inserted, after folding, in the end of C phase high pressure end leads 33, connection of colding pressing in the 3rd connecting ear is inserted in the end of A phase high pressure end leads 13 after folding, connection of colding pressing in the 4th connecting ear is inserted in the end of B phase high pressure first head lead-in wire 21 after folding, connection of colding pressing in the 5th connecting ear 71 is inserted in the end of B phase high pressure end leads 23 after folding, connection of colding pressing in the 6th connecting ear 72 is inserted in the end of C phase high pressure first head lead-in wire 31 after folding.Then the first connecting ear and the second connecting ear are connected on the first high-voltage conductive rod 5 by copper nut and self-locking nut, 3rd connecting ear and the 4th connecting ear are connected on the second high-voltage conductive rod 6 by copper nut and self-locking nut, the 5th connecting ear 71 and the 6th connecting ear 72 are connected on the 3rd high-voltage conductive rod 7 by copper nut and self-locking nut.A phase high-tension coil 1, B phase high-tension coil 2, C phase high-tension coil the 3, first high-voltage conductive rod the 5, second high-voltage conductive rod 6 and the 3rd high-voltage conductive rod 7 is made to connect into closed-loop path.For guaranteeing quality of connection, in described each connecting ear, the intubating length at least 15mm of copper cash and the filling rate of copper cash need to reach 60%～85%.The surface of described each high-voltage conductive rod is also set with wrinkle paper tube 8.
A phase tap lead 12 and A phase high pressure end leads 13 is being tightened by same bundle insulating cloth tape 9 at A phase high-tension coil 1；B phase tap lead 22 and B phase high pressure end leads 23 is being tightened by same bundle insulating cloth tape at B phase high-tension coil 2；C phase tap lead 32 and C phase high pressure end leads 33 is being tightened by same bundle insulating cloth tape at C phase high-tension coil 3.
The concrete preparation process of the assembling structure of above-mentioned amorphous alloy oil immersion type distribution transformer high-voltage connection is as follows:
(1) copper cash of lifting one's head of the high-tension coil of A, B, C three-phase is the most each arranged straight, lift one's head after copper cash bending for every, reserve the length no less than 50mm and peel off the insulating barrier of copper line surface and form lead-in wire；The copper cash of lifting one's head of the high-tension coil of every phase draws high pressure first head lead-in wire, tap lead and high pressure end leads respectively；
(2) lifting one's head of described every phase high-tension coil is not stripped the part of insulating barrier in copper cash, loads in crimped paper pipe by root set, and as the insulated part of lead-in wire, and the root of wrinkle paper tube uses white glue with vinyl to cement；
(3) choose the shunting switch of regulation on request, will insert in tap sleeve corresponding in shunting switch by root after the tap lead bending of every phase high-tension coil；If the end of tap lead is just inserted in tap sleeve after being folded into dried layer, the filling rate of the bare copper wire in tap sleeve is made to reach 60%～85%；Then using cold-pressing tools to carry out, by root tap sleeve, connection of colding pressing, each tap sleeve is at least colded pressing twice；
The first head of high pressure of every phase high-tension coil being gone between individually colds pressing with connecting ear connects and the high pressure end leads of every phase high-tension coil is the most individually colded pressing connection with connecting ear；If the end of every high pressure first head lead-in wire and every high pressure end leads is just inserted in connecting ear after being folded into dried layer, the filling rate of bare copper wire in connecting ear is made to reach 60%～85%；
(4) each high-voltage conductive rod all uses crimped paper pipe box to install, and exposes the connecting hole bit position of copper nut and self-locking nut；According to using three high-voltage conductive rods as three end points of triangle, each high-voltage conductive rod two connecting ears of connection, three-phase high voltage coil as the principle of three sides of a triangle, each connection have the high pressure first head lead-in wire of A, B, C three-phase high voltage coil or the connecting ear of high pressure end leads are connected in turn on high-voltage conductive rod；Connecting ear is connected on copper nut and the self-locking nut of high-voltage conductive rod；Then use crimped paper to bandage the part that each copper nut and self-locking nut are connected with connecting ear, and use white glue with vinyl to cement；
(5) every phase high-tension coil lift one's head on copper cash, bare copper wire and the adjoiner that wrapped up by insulating barrier, use insulating cloth tape to tighten, and at knotting, coat white glue with vinyl cement.
Claims (6)
1. an assembling structure for amorphous alloy oil immersion type distribution transformer high-voltage connection, including three-phase high voltage coil and be placed in
Shunting switch above high-tension coil and three high-voltage conductive rods；It is characterized in that: described every phase high-tension coil to lift one's head copper cash straight
Connect extraction and form high pressure first head lead-in wire, tap lead and high pressure end leads respectively；Described shunting switch is provided with several taps
Sleeve, in the tap sleeve of the end insertion correspondence position of described every tap lead and by colding pressing connection；The height of described three-phase
The respective high pressure of line ball circle first head lead-in wire and high pressure end leads are colded pressing connection with connecting ear respectively；According to three high-voltage conductive rods
Two connecting ears, three-phase high voltage coil is connected as three of triangle as three end points of triangle, each high-voltage conductive rod
The principle on limit, has the connecting ear of high pressure first head lead-in wire or high pressure end leads to be connected in turn on high-voltage conductive rod by each connection；Institute
Stating the filling rate of bare copper wire in each tap sleeve is 60%～85%；In described each connecting ear, the filling rate of bare copper wire is also
60%～85%.
The assembling structure of a kind of amorphous alloy oil immersion type distribution transformer high-voltage connection the most according to claim 1, its feature
Be: described every high pressure first head lead-in wire, tap lead and high pressure end leads its be each all set with wrinkle in exposed part surface
Paper tube.
The assembling structure of a kind of amorphous alloy oil immersion type distribution transformer high-voltage connection the most according to claim 1, its feature
It is: the surface of described high-voltage conductive rod is set with wrinkle paper tube.
The assembling structure of a kind of amorphous alloy oil immersion type distribution transformer high-voltage connection the most according to claim 1, its feature
Be: described every high pressure first head lead-in wire with every high pressure end leads its each insert in corresponding connecting ear a length of much
In 15mm.
The assembling structure of a kind of amorphous alloy oil immersion type distribution transformer high-voltage connection the most according to claim 1, its feature
It is: if its filling rate that makes that the end of described tap lead is inserted in tap sleeve after being folded into dried layer reaches 60%～85%.
The assembling structure of a kind of amorphous alloy oil immersion type distribution transformer high-voltage connection the most according to claim 1, its feature
It is: if described high pressure first head lead-in wire and the respective end of high pressure end leads are inserted after being folded into dried layer in the connecting ear of correspondence
Its filling rate is made to reach 60%～85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620252275.9U CN205564482U (en) | 2016-03-28 | 2016-03-28 | Assembly structure of oily formula distribution transformer high tension lead of metallic glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620252275.9U CN205564482U (en) | 2016-03-28 | 2016-03-28 | Assembly structure of oily formula distribution transformer high tension lead of metallic glass |
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| Publication Number | Publication Date |
|---|---|
| CN205564482U true CN205564482U (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620252275.9U Withdrawn - After Issue CN205564482U (en) | 2016-03-28 | 2016-03-28 | Assembly structure of oily formula distribution transformer high tension lead of metallic glass |
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| Country | Link |
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| CN (1) | CN205564482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632719A (en) * | 2016-03-28 | 2016-06-01 | 佛山市中研非晶科技股份有限公司 | High-voltage lead assembly structure for amorphous alloy oil-immersed power distribution transformer and fabrication method of assembly structure |
-
2016
- 2016-03-28 CN CN201620252275.9U patent/CN205564482U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632719A (en) * | 2016-03-28 | 2016-06-01 | 佛山市中研非晶科技股份有限公司 | High-voltage lead assembly structure for amorphous alloy oil-immersed power distribution transformer and fabrication method of assembly structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20180313 |
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| AV01 | Patent right actively abandoned |