CN105632719B - A kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection and preparation method thereof - Google Patents
A kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection and preparation method thereof Download PDFInfo
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- CN105632719B CN105632719B CN201610181592.0A CN201610181592A CN105632719B CN 105632719 B CN105632719 B CN 105632719B CN 201610181592 A CN201610181592 A CN 201610181592A CN 105632719 B CN105632719 B CN 105632719B
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- 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
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
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- 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
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- 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
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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
- 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
- H01F41/10—Connecting leads to windings
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Abstract
The invention provides a kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection and preparation method thereof.The assembling structure of the high-voltage connection includes three-phase high voltage coil and the shunting switch being placed in above high-tension coil and three high-voltage conductive rods；Formation high pressure first head lead, tap lead and high pressure end leads respectively are directly led out per the copper cash of lifting one's head of phase high-tension coil；Shunting switch be provided with several tap sleeve, the every tap lead end insertion correspondence position tap sleeve in and pass through be cold-pressed connection；Two connecting ears are connected with each high-voltage conductive rod；The first head lead of high pressure and high pressure end leads of the three-phase high voltage coil are inserted in corresponding connecting ear and connected by being cold-pressed respectively by end to end order successively.Advantage of the invention is that the copper cash of lifting one's head of high-tension coil needs not move through heating welding, easily, cost is low, safe for simple in construction, preparation directly as lead.
Description
Technical field
The present invention relates to the technical field of high-voldage, and in particular to a kind of amorphous alloy oil immersion type distribution
Assembling structure of high-voltage lead of transformer and preparation method thereof.
Background technology
It is that existing amorphous alloy oil immersion type distribution transformer high-voltage connection has that soldering connects, phosphor-copper is welded to connect and cold
Pressure connection.It is Type of Welding by heating that soldering connection and phosphor-copper, which are welded to connect,.Many producers are welded using phosphor-copper at present
Joining Technology is connect, this method has many drawbacks, is mainly manifested in：Copper is metal, and the good conductor of heat, so during welding
Insulation near Winding tap can inevitably receive damage, and change carbide can be also dehydrated even if without on fire burn；If plus
It is hot excessively, the performance of copper material can become fragile it is easily broken, it is unfavorable to production and the operation of transformer.And existing cold pressing connection needs additionally
One section of copper cash is sheared by a connecting tube to realize the connection of winding and shunting switch, adds an operation, increases by one
Connection will increase the risk of a bad connection, and process more numerous and diverse.
Such as Publication No. CN104157448A Chinese patent, a kind of assembling of oil-filled transformer high-voltage connection is disclosed
Structure, although the upper head of its tap lead is connected by going deep into being cold-pressed in the lead sleeve pipe in shunting switch, tap is drawn
The lower end of line and the winding protruding head lead of transformer are welded together, although being set with wrinkle outside welding position
Pipe, but above-mentioned hidden danger still be present.
The content of the invention
It is an object of the present invention to provide one kind to need not move through heating welding, directly lifting one's head directly with dividing by coil
A kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection of switch connection is connect, and further provides this
The preparation method of assembling structure, with overcome the deficiencies in the prior art, the installation step and tap part of high-voltage connection are reduced, is optimized
The method of high-voltage connection assembling, reduce the potential safety hazard of high-voltage connection junction.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection, including three-phase high voltage coil and
The shunting switch being placed in above high-tension coil and three high-voltage conductive rods；Especially：The copper cash of lifting one's head per phase high-tension coil
Directly lead out formation high pressure first head lead, tap lead and high pressure end leads respectively；The shunting switch is provided with several
Tap sleeve, the every tap lead end insertion correspondence position tap sleeve in and pass through be cold-pressed connection；Described three
The first head lead of the respective high pressure of high-tension coil and high pressure end leads of phase are cold-pressed with connecting ear connect respectively；According to three height
Conducting rod is pressed to connect two connecting ears, three-phase high voltage coils as three as three end points, each high-voltage conductive rod of triangle
The principle on three angular sides, it is connected to the connecting ear for being respectively connected with the first head lead of high pressure or high pressure end leads in turn high pressure
On conducting rod；The filling rate of bare copper wire is 60%~85% in each tap sleeve；Bare copper wire in each connecting ear
Filling rate also be 60%~85%.
To strengthen the insulating properties of the lead of high-tension coil, avoid overheating and producing pyrophoric risk, it is preferably described every
The first head lead of high pressure, tap lead and high pressure end leads its each exposed part surface is set with wrinkle paper tube；It is described every
The surface of individual high-voltage conductive rod is also set with wrinkle paper tube.
To ensure that tap lead fully contacts with the tap sleeve of shunting switch, loose contact and interface easy fracture are reduced
Risk, if the end of every tap lead be folded into after dried layer in just insertion tap sleeve make its filling rate reach 60%~
85%., and the length that the end of every tap lead is folded and insertion is tapped in sleeve is no less than 15mm.
Similarly, to ensure that the first head lead of high pressure, high pressure end leads fully contact with connecting ear respectively, contact is reduced
Bad and interface easy fracture risk, if after the first head lead of the high pressure and the respective end of high pressure end leads are folded into dried layer
Its filling rate that makes in connecting ear corresponding to insertion reaches 60%~85%, the first head lead of every high pressure and every high pressure end
End lead its each insert corresponding to length in connecting ear for no less than 15mm.
Present invention also offers a kind of making side of the assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection
Method, specifically include following steps：
(1) copper cash of lifting one's head of the high-tension coil of A, B, C three-phase is each arranged it is straight, after every copper cash bending of lifting one's head,
Reserve enough length and peel off the insulating barrier formation lead of copper line surface；The copper cash of lifting one's head of high-tension coil per phase draws respectively
Go out the first head lead of high pressure, tap lead and high pressure end leads；
(2) part of insulating barrier is not stripped in the copper cash of lifting one's head per phase high-tension coil, is covered by root and loads crimped paper
Guan Zhong, the root as the insulated part of lead, and wrinkle paper tube are cemented using white glue with vinyl；
(3) shunting switch as defined in choosing on request, will divide after the tap lead bending of every phase high-tension coil by root insertion
Connect in switch in corresponding tap sleeve；If the end of tap lead is folded into after dried layer in just insertion tap sleeve, make tap
The filling rate of bare copper wire in sleeve reaches 60%~85%；Then cold pressing company is carried out by root tap sleeve using cold-pressing tools
Connect, each sleeve that taps at least is cold-pressed twice；
The first head lead of the high pressure of every phase high-tension coil is individually cold-pressed connection and per phase high-tension coil with connecting ear
High pressure end leads also individually with connecting ear be cold-pressed connect；The first head lead of every high pressure and every high pressure end leads
If end is just inserted in connecting ear after being folded into dried layer, the filling rate of bare copper wire in connecting ear is set to reach 60%~85%；
(4) each high-voltage conductive rod is installed using crimped paper pipe sleeve, and exposes the connection of copper nut and self-locking nut
Hole position part；Two wiring are connected according to three end points using three high-voltage conductive rods as triangle, each high-voltage conductive rod
The principle of ear, three-phase high voltage coil as three sides of a triangle, the first head of high pressure that will respectively be connected with A, B, C three-phase high voltage coil
Lead or the connecting ear of high pressure end leads are connected in turn on high-voltage conductive rod；Connecting ear is connected to the copper spiral shell of high-voltage conductive rod
On female and self-locking nut；Then the part that each copper nut and self-locking nut are connected with connecting ear is bandaged using crimped paper, and
Cemented using white glue with vinyl；.
To strengthen the insulating properties of the copper cash of lifting one's head of high-tension coil, step (5) is may also include, i.e., in every phase high-tension coil
Lift one's head on copper cash, bare copper wire and the adjoiner wrapped up by insulating barrier, tightened using insulating cloth tape, and white glue with vinyl is coated at knotting
Cement.
Further, it is the contact performance of increase tap lead and shunting switch, and the first head lead of increase high pressure and height
Press the contact performance of end leads and connecting ear, after the step (1), in addition to by the first head lead of high pressure, tap lead and
The process that tin is warded off in the bare copper wire part of high pressure end leads.
In step (1), if the copper cash of lifting one's head of high-tension coil is enamel insulated round copper wire, copper line surface is insulated using stripping lacquerware
Paint removes；If the copper cash of lifting one's head of high-tension coil is enamel-cover flat type copper wire, is heated using welding gun and remove copper line surface insulated paint；It is if high
The copper cash of lifting one's head of line ball circle is film bag flat type copper wire, then removes copper line surface film layer with blade.Generally, it is described every
Naked copper line length after the copper cash stripping insulation layer of lifting one's head of phase high-tension coil be no less than 50mm, so as to shunting switch or
High-voltage conductive rod connects.
To ensure there is enough areas and length in the tap lead of high-tension coil insertion tap sleeve, broken with reducing interface
The risk with loose contact is split, the end of every tap lead is folded into the length no less than two layers and in insertion tap sleeve
For no less than 15mm.Similarly, the first head lead of every high pressure and its respective end of high pressure end leads are also folded into and are no less than
Two layers and insertion connecting ear in length also be no less than 15mm.
The assembling structure of the high-voltage connection of prior art, the welding of lifting one's head of general another setting lead and high-tension coil, it is
Cost-effective, lead is to use the smaller metal wire of diameter, and the filling rate for tapping sleeve and the metal wire in connecting ear is about
30%~50%.The structure generally existing lead of prior art with tap sleeve or connecting ear be connected built on the sand, on the one hand due to
Lead filling rate in tap sleeve or connecting ear is too small and easily causes off-line, on the other hand because contact area is too small, work
Easily overheated and coking when making, cause interface to damage.Amorphous alloy oil immersion type distribution transformer high-voltage connection provided by the invention
Assembling structure and preparation method thereof in require that, if the end for the tap lead that high-tension coil is drawn must be after being folded into dried layer
Insert in the tap sleeve in shunting switch, 60%~85% must be reached by tapping the filling rate of the bare copper wire in sleeve；High-voltage line
If connecting ear must also be inserted after being folded into dried layer by enclosing the first head lead of high pressure drawn and its respective end of high pressure end leads
In, the bare copper wire filling rate in connecting ear must also reach 60%~85%.Such design can efficiently solve prior art
The shortcomings that.
Advantage of the invention is that：The copper cash of lifting one's head of high-tension coil needs not move through heating welding directly as lead, it is ensured that
Insulation environment around lead is without damage, be also prevented from copper cash because over-heating cause to become fragile it is easily broken；Conductor grip is not needed
Fixed high-voltage connection, has saved the conductor grip cost of high-voltage connection；The position of shunting switch, cold pressing connection need not be accurately positioned
Insulating materials colligation is used afterwards；Improve production efficiency and save the production time, reduce production cost, in installation shunting switch
During it is simpler quick, be more easily installed, but also there is retractility, be not easy than the paper bag circular copper wire welding that tradition uses
It is disconnected, ensure the safe for operation of transformer.
Brief description of the drawings
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 that the right side of the assembling structure of the amorphous alloy oil immersion type distribution transformer high-voltage connection of embodiment regards structure chart；
Fig. 3 is that shunting switch taps the connection enlarged diagram of sleeve at K in Fig. 2；
Fig. 4 is the tap lead wire of high-tension coil and the connection enlarged diagram of high-voltage conductive rod at I in Fig. 2；
Reference：1-A phase high-tension coils；The first head lead of 11-A phase high pressures；12-A phase tap leads；13-A phases high pressure end
Hold lead；2-B phase high-tension coils；The first head lead of 21-B phase high pressures；22-B phase tap leads；23-B phase high pressure end leads；3-C
Phase high-tension coil；The first head lead of 31-C phase high pressures；32-C phase tap leads；33-C phase high pressure end leads；4- shunting switch；
41- taps sleeve；The high-voltage conductive rods of 5- first；The high-voltage conductive rods of 6- second；The high-voltage conductive rods of 7- the 3rd；The connecting ears of 71- the 5th；
The connecting ears of 72- the 6th；8- wrinkle paper tubes；9- insulating cloth tapes.
Embodiment
Below in conjunction with accompanying drawing, assembling structure to the amorphous alloy oil immersion type distribution transformer high-voltage connection of the present invention and its
Preparation method 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 phases high-tension coil 2, C phases high-tension coil 3, be provided with above the high-tension coil of three-phase shunting switch 4,
First high-voltage conductive rod 5, the second high-voltage conductive rod 6 and the 3rd high-voltage conductive rod 7.
The copper cash of lifting one's head of A phases high-tension coil 1, which directly leads out to form first 11, the 6 A phases of head lead of A phase high pressures respectively and tap, to be drawn
Line 12 and A phase high pressures end leads 13.The copper cash of lifting one's head of B phases high-tension coil 2 directly leads out the formation first head lead of B phase high pressures respectively
21st, 6 B phases tap leads 22 and B phase high pressures end leads 23.The copper cash of lifting one's head of C phases high-tension coil 3 is directly led out to be formed respectively
31,6 C phases tap leads 32 of the first head lead of C phase high pressures and C phase high pressures end leads 33.Shunting switch 4 is used provided with several
In the tap sleeve 41 for being respectively connected to A phases tap lead 12, B phases tap lead 22 and C phases tap lead 32.The A phases tap
The tap set of insertion correspondence position after bilayer is separately folded into the end of lead 12, B phases tap lead 22 and C phases tap lead 32
In cylinder 41, cold pressing connection.To ensure quality of connection, each intubating length for tapping copper cash in sleeve 41 is at least 15mm and copper cash
Filling rate need to reach 60%~85%.The surface of the exposed part of the every tap lead is set with wrinkle paper tube 8, and
Wrinkle paper tube 8 is cemented by white glue with vinyl and tap lead.
According to delta connection rule wiring：The end of the first head lead 11 of A phase high pressures is inserted in the first connecting ear after folding
Cold pressing connection, inserted after the end folding of C phase high pressures end leads 33 and connection is cold-pressed in second connecting ear, A phase high pressures end is drawn
The end of line 13 is inserted after folding is cold-pressed connection in the 3rd connecting ear, the end of the first head lead 21 of B phase high pressures inserts the after folding
Connection is cold-pressed in four connecting ears, is inserted after the end folding of B phase high pressures end leads 23 and connection, C is cold-pressed in the 5th connecting ear 71
The end of the first head lead 31 of phase high pressure is inserted after folding and connection is cold-pressed in the 6th connecting ear 72.Then by the first connecting ear and second
Connecting ear is connected on the first high-voltage conductive rod 5 by copper nut and self-locking nut, and the 3rd connecting ear and the 4th connecting ear are led to
Cross copper nut and self-locking nut is connected on the second high-voltage conductive rod 6, the 5th connecting ear 71 and the 6th connecting ear 72 are passed through into copper
Nut and self-locking nut are connected on the 3rd high-voltage conductive rod 7.So that A phases high-tension coil 1, B phases high-tension coil 2, C phase high-voltage lines
The 3, first high-voltage conductive rod 5 of circle, the second high-voltage conductive rod 6 and the 3rd high-voltage conductive rod 7 connect into closed-loop path.To ensure to connect
Quality, the intubating length of copper cash is at least 15mm in each connecting ear and the filling rate of copper cash need to reach 60%~85%.
The surface of each high-voltage conductive rod is also set with wrinkle paper tube 8.
A phases tap lead 12 and A phase high pressures end leads 13 are pricking insulating cloth tape 9 at A phases high-tension coil 1 by same
Tighten；B phases tap lead 22 and B phase high pressures end leads 23 are being tied up at B phases high-tension coil 2 by same bundle insulating cloth tape
Tightly；C phases tap lead 32 and C phase high pressures end leads 33 are being tightened at C phases high-tension coil 3 by same bundle insulating cloth tape.
The specific 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 each arranged it is straight, after every copper cash bending of lifting one's head,
Reserve the length no less than 50mm and peel off the insulating barrier formation lead of copper line surface；The copper cash of lifting one's head of high-tension coil per phase
High pressure first head lead, tap lead and high pressure end leads are drawn respectively；
(2) part of insulating barrier is not stripped in the copper cash of lifting one's head per phase high-tension coil, is covered by root and loads crimped paper
Guan Zhong, the root as the insulated part of lead, and wrinkle paper tube are cemented using white glue with vinyl；
(3) shunting switch as defined in choosing on request, will divide after the tap lead bending of every phase high-tension coil by root insertion
Connect in switch in corresponding tap sleeve；If the end of tap lead is folded into after dried layer in just insertion tap sleeve, make tap
The filling rate of bare copper wire in sleeve reaches 60%~85%；Then cold pressing company is carried out by root tap sleeve using cold-pressing tools
Connect, each sleeve that taps at least is cold-pressed twice；
The first head lead of the high pressure of every phase high-tension coil is individually cold-pressed connection and per phase high-tension coil with connecting ear
High pressure end leads also individually with connecting ear be cold-pressed connect；The first head lead of every high pressure and every high pressure end leads
If end is just inserted in connecting ear after being folded into dried layer, the filling rate of bare copper wire in connecting ear is set to reach 60%~85%；
(4) each high-voltage conductive rod is installed using crimped paper pipe sleeve, and exposes the connection of copper nut and self-locking nut
Hole position part；Two wiring are connected according to three end points using three high-voltage conductive rods as triangle, each high-voltage conductive rod
The principle of ear, three-phase high voltage coil as three sides of a triangle, the first head of high pressure that will respectively be connected with A, B, C three-phase high voltage coil
Lead or the connecting ear of high pressure end leads are connected in turn on high-voltage conductive rod；Connecting ear is connected to the copper spiral shell of high-voltage conductive rod
On female and self-locking nut；Then the part that each copper nut and self-locking nut are connected with connecting ear is bandaged using crimped paper, and
Cemented using white glue with vinyl；
(5) in the lifting one's head on copper cash of every phase high-tension coil, bare copper wire and the adjoiner wrapped up by insulating barrier, using empire cloth
Band tightens, and coats white glue with vinyl at knotting and cement.
Claims (10)
1. a kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection, including A phases high-tension coil, B phase high pressures
Coil, C phases high-tension coil, shunting switch, the first high-voltage conductive rod, the second high-voltage conductive rod and the 3rd high-voltage conductive rod；Institute
State the top that shunting switch is arranged on the A phases, B phases and C phase high-tension coils；First high-voltage conductive rod is located at the A phases
The surface of high-tension coil, second high-voltage conductive rod are located at the surface of the B phases high-tension coil, and the 3rd high pressure is led
Electric pole is located at the surface of the C phases high-tension coil；It is characterized in that：A phases high-tension coil copper cash of lifting one's head is directly led out, point
Xing Cheng not the first head lead of A phase high pressures, A phases tap lead and A phase high pressure end leads；B phases high-tension coil copper cash of lifting one's head is straight
Extraction is connect, forms B phase high pressures first head lead, B phases tap lead and B phase high pressure end leads respectively；The C phases high-voltage line is irised out
Head copper cash is directly led out, and forms C phase high pressures first head lead, C phases tap lead and C phase high pressure end leads respectively；The tap
Switch is provided with several tap sleeves, and the end of the A phases tap lead, the end of B phase tap leads and C phases are tapped and drawn
The end of line is inserted in the tap sleeve of correspondence position and connected by being cold-pressed respectively；The first head lead of the A phases high pressure, B phases are high
The first head lead of first head lead, C phase high pressures, A phase high pressures end leads, B phase high pressure end leads and C phase high pressures end is pressed to draw
Line is cold-pressed with connecting ear connects respectively；According to three end points, each high-pressure conductive using three high-voltage conductive rods as triangle
Bar connects two connecting ears, principle of the three-phase high voltage coil as three sides of a triangle, will respectively be connected with the first head lead of high pressure
Or the connecting ear of high pressure end leads is connected in turn on high-voltage conductive rod；The filling rate of bare copper wire in each tap sleeve
For 60%~85%；The filling rate of bare copper wire is also 60%~85% in each connecting ear.
2. a kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection according to claim 1, it is special
Sign is：The first head lead of described-high pressure, tap lead and high pressure end leads its be each set with wrinkle in exposed part surface
Paper tube.
3. a kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection according to claim 1, it is special
Sign is：The surface of the high-voltage conductive rod is set with wrinkle paper tube.
4. a kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection according to claim 1, it is special
Sign is：The first head lead of the high pressure and every high pressure end leads its each insert corresponding to length in connecting ear be many
In 15mm.
5. a kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection according to claim 1, it is special
Sign is：If the end of the tap lead be folded into after dried layer in insertion tap sleeve make its filling rate reach 60%~
85%.
6. a kind of assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection according to claim 1, it is special
Sign is：If the first head lead of the high pressure and the respective end of high pressure end leads are folded into connecting ear corresponding to insertion after dried layer
In its filling rate is reached 60%~85%.
A kind of 7. assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection as described in claim any one of 1-6
Preparation method, it is characterised in that comprise the following steps：
(1) copper cash of lifting one's head of the high-tension coil of A, B, C three-phase is each arranged it is straight, after every copper cash bending of lifting one's head, reserve
Go out enough length and peel off the insulating barrier formation lead of copper line surface；The copper cash of lifting one's head of high-tension coil per phase draws height respectively
Press first head lead, tap lead and high pressure end leads；
(2) part of insulating barrier is not stripped in the copper cash of lifting one's head per phase high-tension coil, is fitted into by root set in crimped paper pipe,
Root as the insulated part of lead, and wrinkle paper tube is cemented using white glue with vinyl；
(3) shunting switch as defined in choosing on request, will be opened after the tap lead bending of every phase high-tension coil by root insertion tap
In tap sleeve corresponding to the Central Shanxi Plain；If the end of tap lead is folded into after dried layer in just insertion tap sleeve, make tap sleeve
In the filling rate of bare copper wire reach 60%~85%；Then sleeve is tapped one by one using cold-pressing tools and carry out cold pressing connection, often
Individual tap sleeve is at least cold-pressed twice；
The first head lead of the high pressure of every phase high-tension coil is individually cold-pressed connection and the height per phase high-tension coil with connecting ear
Press end leads to be also individually cold-pressed with connecting ear to connect；The end of the first head lead of every high pressure and every high pressure end leads
If just being inserted after being folded into dried layer in connecting ear, the filling rate of bare copper wire in connecting ear is set to reach 60%~85%；
(4) each high-voltage conductive rod is installed using crimped paper pipe sleeve, and exposes the connection hole position of copper nut and self-locking nut
Part；Two connecting ears, three are connected according to three end points using three high-voltage conductive rods as triangle, each high-voltage conductive rod
Principle of the phase high-tension coil as three sides of a triangle, by the first head lead of the high pressure for being respectively connected with A, B, C three-phase high voltage coil
Or the connecting ear of high pressure end leads is connected in turn on high-voltage conductive rod；Connecting ear be connected to high-voltage conductive rod copper nut and
On self-locking nut；Then the part that each copper nut and self-locking nut are connected with connecting ear is bandaged using crimped paper, and used
White glue with vinyl cements.
A kind of 8. making of the assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection according to claim 7
Method, it is characterised in that also including step：(5) wrapped up in the lifting one's head on copper cash of every phase high-tension coil, bare copper wire and by insulating barrier
Adjoiner, tightened using insulating cloth tape, and coat white glue with vinyl at knotting and cement.
A kind of 9. making of the assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection according to claim 7
Method, it is characterised in that：After the step (1), in addition to by the first head lead of high pressure, tap lead and high pressure end leads
The process that tin is warded off in bare copper wire part.
A kind of 10. system of the assembling structure of amorphous alloy oil immersion type distribution transformer high-voltage connection according to claim 7
Make method, it is characterised in that：Naked copper line length after the copper cash stripping insulation layer of lifting one's head of every phase high-tension coil described in step (1)
Spend for no less than 50mm.
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| CN106098319A (en) * | 2016-08-04 | 2016-11-09 | 深圳供电局有限公司 | Axial outlet type transformer |
| CN107705972A (en) * | 2017-11-16 | 2018-02-16 | 国家电网公司 | Transformer lead assembling structure and its assembly method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS61120411A (en) * | 1984-11-16 | 1986-06-07 | Toshiba Corp | Lead wire output port device for winding of oil filled dc electric apparatus |
| CN201975537U (en) * | 2011-01-17 | 2011-09-14 | 袁郭竣 | Metal wiring terminal |
| CN202523523U (en) * | 2012-04-05 | 2012-11-07 | 蓉中电气设备有限公司 | High tension lead for rectifier transformator |
| CN202817223U (en) * | 2012-07-24 | 2013-03-20 | 江苏天翔变压器有限公司 | A high-voltage lead device |
| CN203596264U (en) * | 2013-11-19 | 2014-05-14 | 江苏彭变变压器有限公司 | Lightning-protection low-loss voltage-regulating distribution transformer |
| CN204066975U (en) * | 2014-08-27 | 2014-12-31 | 山东华驰变压器股份有限公司 | A kind of distribution transformer lead link structure |
| CN205564482U (en) * | 2016-03-28 | 2016-09-07 | 佛山市中研非晶科技股份有限公司 | Assembly structure of oily formula distribution transformer high tension lead of metallic glass |
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