CN106783093A - A kind of oil-filled transformer is with hermetically sealed combined type 1kV grades of sleeve pipe - Google Patents
A kind of oil-filled transformer is with hermetically sealed combined type 1kV grades of sleeve pipe Download PDFInfo
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- CN106783093A CN106783093A CN201710065690.2A CN201710065690A CN106783093A CN 106783093 A CN106783093 A CN 106783093A CN 201710065690 A CN201710065690 A CN 201710065690A CN 106783093 A CN106783093 A CN 106783093A
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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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- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a kind of oil-filled transformer hermetically sealed combined type 1kV grades of sleeve pipe, including conducting rod, external insulation sleeve, fuel tank cap of transformer and interior insulation sealing shroud；The interior insulation sealing shroud bottom is provided with lower cavity, and by being nested with metal trim ring and nut outside conducting rod to the spacing fixation of fuel tank cap of transformer, the outside of conducting rod is equipped with upper sealing gasket at the top of external insulation sleeve；The bottom surface of the metal trim ring is fitted with the upper surface of external insulation sleeve, and upper sealing gasket isolation is enclosed in into inside pipe casing；The bottom of the external insulation sleeve is provided with downward outer back-up ring.This oil-filled transformer is simple, easy for installation with hermetically sealed combined type 1kV grades of sleeve structure, and realize the hermetically sealed internal oil-free function of sleeve pipe, completely avoid encapsulant and be placed in solar ulatraviolet radiation, the component part of sleeve pipe is few simultaneously, so as to greatly reduce manufacturing cost, and on the basis of original bushing shell for transformer assembly technology is not changed, it is ensured that production efficiency.
Description
Technical field
The present invention relates to oil-filled transformer sleeve pipe, more particularly to a kind of hermetically sealed combined type of oil-filled transformer
1kV grades of sleeve pipe.
Background technology
The Main Function of bushing shell for transformer is to guide to outside fuel tank inside transformer high-low voltage leads, serves not only as lead
Insulation against ground, but also the effect of anchor leg is responsible for, in Transformer, for a long time by load current, work as transformer
Pass through short circuit current during short-circuited outside.Combined type 1kV grades of sleeve pipe currently on the market adds conduction using three porcelain pieces
Bar is constituted, and this combined type 1kV grades of bobbin seal face is small, and porcelain piece is broken, oil leakage phenomenon easily occurs, and manufacturing process is multiple
Miscellaneous, production cost is high, and combination part is more, and installation procedure is complicated.
For combined type 1kV grades of sleeve pipe present on above-mentioned market, through retrieval, for the existing bushing shell for transformer
And the technical scheme being improved is disclosed, such as Patent No. ZL201320543430.9, authorized announcement date is 2 months 2014 19
Day, a kind of entitled combined type 1kV grades of bushing shell for transformer, it includes conducting rod, nut, insulator and sealing plain washer, also includes
Metal backup shoe, wedge-type seal skin pearl and base, one end of conducting rod carry external screw thread, and the other end is flat wire head, and base is
Rigid plastics insulation pouring body, and base and conducting rod be combined into one structure near one end of flat wire head, seals plain cushion
Circle, insulator, wedge-type seal skin pearl and metal backup shoe are sheathed on conducting rod successively, and nut matches with the external screw thread on conducting rod
Close, and located at the upper end of metal backup shoe.But the major defect of this application case is as follows：
Shortcoming 1 is that seal is placed in air UV sunlight, necessarily causes seal surface to be cracked after certain hour, is influenceed close
Envelope, and then transformer quality is influenceed, it is a very big hidden danger；
Shortcoming 2 is that its base material is PA, is a kind of Maranyl, is a kind of highly polar material, and hygroscopicity is strong, causes size
Stability difference and electrical property are unstable；Anti-seismic design is poor simultaneously, and antistatic behaviour is bad.Be placed in transformer oil is by substantially suction
The moisture in transformer is received, insulating properties are had a strong impact on；
Shortcoming 3 is that the base is provided with logical oil groove, without sealing function, has oil and air, influences the electric property of sleeve pipe；And
So that inside pipe casing is connected with inside transformer.
Shortcoming 4 is that the compression sealing function of its seal depends entirely on the compression degree of seal, is existed in structure
Although upper wedge seal has been compacted, because pressure cannot ensure on the seal that is passed in the fuel tank cap of bottom, gesture
Seal must be caused to compress degree not enough, have a strong impact on sealing；Another aspect its underpart seal is not blocked and is exposed to
In air Yanguan Pass ultraviolet, seal because be heated the reason ageing failures such as ultraviolet irradiation when, rainwater by inside sleeve pipe,
Because base does not have sealing function, rainwater will enter inside transformer, cause a serious accident along susceptor surface；
Shortcoming 5 is that the bottom of its insulator structure employs inner shield ring structure, sealing ring is placed in into outside, exposed to UV sunlight
In air, the easy aging cracking of sealing ring is caused.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of good seal performance, and internal oil-free can be avoided close completely
Closure material is placed in the hermetically sealed combined type 1kV grades of sleeve pipe of the oil-filled transformer of solar ulatraviolet radiation.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：A kind of oil-filled transformer
With hermetically sealed combined type 1kV grades of sleeve pipe, including conducting rod, external insulation sleeve, fuel tank cap of transformer and interior insulation sealing shroud；It is described outer
Insulation sleeve is insulator or epoxy resin set, and outside is in umbrella-shaped structure, is internally provided with vestibule, and vestibule is upper and lower two parts, wherein
Bottom is cone structure, and external insulation sleeve bottom is provided with downward outer back-up ring；Described conducting rod one end is for installing external connection
The column termination of plate, the other end is provided with flat board connector lug；The interior insulation sealing shroud is by the material with insulation and sealing function
Material is made, with elasticity, it is easy to install compression seal, and its bottom is provided with lower cavity, the flat board on the lower cavity and conducting rod
Connector lug coordinates；The interior insulation sealing shroud is nested with the outside of conducting rod, and its bottom is by the flat board that is fixed on conducting rod
Connector lug is spacing and is pressed on sealing fixation on oil tank of transformer；The oil tank of transformer is covered and is provided with and interior insulation sealing shroud
The mounting hole of cooperation, interior insulation sealing shroud inserts external insulation sleeve inner chamber through the mounting hole of fuel tank cap of transformer；The conducting rod
Interior insulation sealing shroud is passed through from the lower section of fuel tank cap of transformer, and it is spacing solid by the metal trim ring and nut at the top of external insulation sleeve
Determine and be clamped in oil tank of transformer to cover, wherein nut coordinates with the external screw thread screw thread for being arranged on conducting rod upper end, the conduction
The outside of bar is to be equipped with upper sealing gasket inside external insulation sleeve upper end, and the upper sealing gasket is compressed by metal trim ring and is sealed in
Between external insulation sleeve upper end inside and conducting rod, sealing is constituted, the bottom surface of the metal trim ring is pasted with the upper surface of external insulation sleeve
Close.
The structure preferably, the flat board connector lug is square, the equal bevelling in its corner.
Preferably, being provided with wiring hole on the flat board connector lug.
Preferably, the interior insulation sealing shroud is made up of base sleeve, the lower seal pad being arranged in base sleeve and upper sealing gasket；
The outer upper ends of the base sleeve are cone structure, and its sleeve joint hole for being provided centrally with up/down perforation, the conducting rod is located in set
Connect in hole；The lower seal pad is located at the bottom of base sleeve, and upper sealing gasket is located at the top of lower seal pad, and upper sealing gasket positioned at outer
In back-up ring, the bottom of the lower seal pad is provided with lower cavity, and the lower cavity coordinates with the flat board connector lug on conducting rod, described
Interval trough is formed between lower seal pad and upper sealing gasket, the fuel tank cap of transformer is nested with the interval trough, the lower sealing
Pad and upper sealing gasket are integrally formed with base sleeve, constitute double end inverted " t " type structure, the interior insulation sealing of the double end inverted " t " type structure
Set is sealed with the top and bottom of the external diameter, external insulation sleeve lumen orifice internal diameter and lower surface and fuel tank cap of transformer of conducting rod matches somebody with somebody
Close.
Preferably, the interior insulation sealing shroud is made up of base sleeve and lower seal pad；The outer upper ends of the base sleeve are cone
Shape structure, its sleeve joint hole for being provided centrally with up/down perforation, the conducting rod is located in sleeve joint hole；The lower seal pad is located at
The bottom of base sleeve, it is integrally formed with base sleeve, constitutes inverted " t " type structure, interior insulation sealing shroud and the conduction of the inverted " t " type structure
Sealing coordinates below the external diameter of bar, external insulation sleeve hole internal diameter and fuel tank cap of transformer；The bottom of the lower seal pad sets
Lower cavity is equipped with, the lower cavity coordinates with the flat board connector lug on conducting rod；Lower sealing is equipped with the interior insulation sealing shroud
Circle, the lower seal is located above fuel tank cap of transformer and the lower surface of external insulation sleeve between, and is placed in outer back-up ring.
Preferably, the interior insulation sealing shroud is made up of base sleeve, the lower seal pad being arranged in base sleeve and upper sealing gasket；
The outer upper ends of the base sleeve are cone structure, and its sleeve joint hole for being provided centrally with up/down perforation, the conducting rod is located in set
Connect in hole；The lower seal pad and upper sealing gasket are located at the outside of base sleeve, wherein upper sealing gasket is located at the top of lower seal pad, under
Interval trough is formed between sealing gasket and upper sealing gasket, the fuel tank cap of transformer is nested with the interval trough, the end of the base sleeve
End extends in the bottom part down of lower seal pad, constitutes clamping joint, and base, the bottom surface of the base are equipped with outside the clamping joint
With the top surface palette of flat board connector lug, and cavity is provided with the top of the base, the lower seal pad is located at fovea superior
In chamber；The lower seal pad and upper sealing gasket are integrally formed with base sleeve, or upper insulated enclosure pad is separately provided, the interior insulation
Sealing shroud is sealed with the top and bottom of the external diameter, external insulation sleeve lumen orifice internal diameter and lower surface and fuel tank cap of transformer of conducting rod
Coordinate, wherein upper sealing gasket is located in outer back-up ring.
Preferably, the upper sealing gasket is wedge-type seal circle or circular seal ring or T-shape cross section sealing circle or half
O-ring.
Preferably, the lower seal is T-shape sealing ring or plain washer.
Preferably, the outside of the outside of the metal trim ring or insulation sleeve is in yellow, green, red and black, respectively
Correspondence power system a, b, c and o phase connection mark.
Compared with prior art, usefulness of the present invention is：This oil-filled transformer is with hermetically sealed combined type 1kV grades
Sleeve structure is simple, easy for installation, and realizes the hermetically sealed internal oil-free function of sleeve pipe, it is entirely avoided encapsulant is put
In solar ulatraviolet radiation, while the component part of sleeve pipe is few, so as to greatly reduce manufacturing cost, and do not changing original
On the basis of bushing shell for transformer assembly technology, it is ensured that production efficiency.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 to Figure 14 is a kind of hermetically sealed combined type 1kV grades of sleeve structure schematic diagram of oil-filled transformer of the invention；
Figure 15 is that a kind of oil-filled transformer of the invention conducting rod in hermetically sealed combined type 1kV grades of sleeve pipe connects with flat board connector lug
The structural representation of scheme one for connecing；
Figure 16 is that a kind of oil-filled transformer of the invention conducting rod in hermetically sealed combined type 1kV grades of sleeve pipe connects with flat board connector lug
The structural representation of scheme two for connecing；
Figure 17 is that a kind of oil-filled transformer of the invention seals sets of plan one with interior insulation in hermetically sealed combined type 1kV grades of sleeve pipe
Structural representation；
Figure 18 is that a kind of oil-filled transformer of the invention seals sets of plan two with interior insulation in hermetically sealed combined type 1kV grades of sleeve pipe
Structural representation；
Figure 19 is that a kind of oil-filled transformer of the invention seals sets of plan three with interior insulation in hermetically sealed combined type 1kV grades of sleeve pipe
Structural representation；
Figure 20 is a kind of external structure of the oil-filled transformer of the invention with hermetically sealed combined type 1kV grades of sleeve pipe middle plateform connector lug
Schematic diagram.
In figure：1st, conducting rod；2nd, nut；3rd, metal trim ring；4th, flat board connector lug；41st, wiring hole；5th, external insulation sleeve；6、
Upper sealing gasket；7th, fuel tank cap of transformer；8th, interior insulation sealing shroud；81st, lower seal pad；82nd, upper sealing gasket；83rd, interval trough；
84th, lower cavity；85th, sleeve joint hole；86th, base sleeve；87th, clamping joint；9th, outer back-up ring；10th, lower seal；11st, base；111st, fovea superior
Chamber.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention will be described in detail：
A kind of oil-filled transformer shown in Fig. 1 to Figure 14 hermetically sealed combined type 1kV grades of sleeve pipe, including conducting rod 1, external insulation sleeve
5th, fuel tank cap of transformer 7 and interior insulation sealing shroud 8；The external insulation sleeve 5 is insulator or epoxy resin set, and outside is in umbrella knot
Structure, is internally provided with vestibule, and vestibule is upper and lower two parts, and its middle and lower part is cone structure, and bottom is provided with downward outer back-up ring
9；The one end of the conducting rod 1 is the column termination for installing external terminal board, and the other end is provided with flat board connector lug 4, such as Figure 20
Shown, the flat board connector lug 4 is square structure, the equal bevelling in its corner；The interior insulation sealing shroud 8 by with insulation and it is close
The material for sealing function is made, with elasticity, it is easy to install compression seal；The interior insulation sealing shroud 8 is nested with the outer of conducting rod 1
Portion, the bottom of interior insulation sealing shroud 8 is spacing by the flat board connector lug 4 being fixed on conducting rod 1 and is pressed on oil tank of transformer 7
Upper sealing is fixed；The mounting hole coordinated with interior insulation sealing shroud 8, interior insulation sealing shroud 8 are provided with the fuel tank cap of transformer 7
Through mounting hole insertion external insulation sleeve 5 inner chamber of fuel tank cap of transformer 7.The external diameter of interior insulation sealing shroud 8 and conducting rod 1, it is outer absolutely
The top and bottom that edge covers the internal diameter, the bottom of external insulation sleeve 5 and fuel tank cap of transformer 7 in 5 holes constitute sealing.The conducting rod 1 is from change
The lower section of depressor fuel tank cap 7 passes through interior insulation sealing shroud 8, and spacing by the metal trim ring 3 and nut 2 at the top of external insulation sleeve 5
Fix and be clamped on fuel tank cap of transformer 7, wherein nut 2 coordinates with the external screw thread screw thread for being arranged on the upper end of conducting rod 1, described
The outside of conducting rod 1 is to be equipped with upper sealing gasket 6 inside the upper end of external insulation sleeve 5, and the upper sealing gasket 6 passes through metal trim ring 3
Compression is sealed between the upper end of external insulation sleeve 5 inside and conducting rod 1, constitutes sealing, and the upper sealing gasket 6 can be close for wedge shape
Seal or circular seal ring or T-shape sealing ring or semi-circular cross-section sealing ring, and the selection of the structure type of upper sealing gasket 6 must
Must be corresponding with the structure type mutual cooperation of the lower surface of metal trim ring 3 and the centre bore upper-end part of driving internal diameter wall of external insulation sleeve 5,
Ensure that upper sealing gasket 6 and conducting rod 1, external insulation sleeve 5 and the sealing of metal trim ring 3 coordinate, as shown in Figure 1, Figure 2, shown in Fig. 9 and 10
Sleeve pipe, the upper sealing gasket 6 that it is used is wedge-type seal circle；Sleeve pipe shown in Fig. 3, Fig. 4, Figure 11 and Figure 12, its institute
The upper sealing gasket 6 for using is circular seal ring, and the sleeve pipe shown in Fig. 5 and Fig. 6, the upper sealing gasket 6 that it is used is
T-shape sealing ring, the sleeve pipe shown in Fig. 7, Fig. 8, Figure 13 and Figure 14, the upper sealing gasket 6 that it is used is semi-circular cross-section
Sealing ring；Fitted with the upper surface of external insulation sleeve 5 bottom surface of the metal trim ring 3.
In order to improve range of application, the connected mode between the flat board connector lug 4 and conducting rod 1 has two schemes,
Figure 15 is that shown in scheme one, near the lower end of conducting rod 1, it constitutes " ten " word structure to the flat board connector lug 4 with conducting rod 1,
And the lower end of conducting rod 1 is provided with external screw thread.Figure 16 is that the flat board connector lug 4 is arranged under conducting rod 1 shown in scheme two
End end face, it constitutes inverted " t " type structure, is integrally formed on the terminal plate of structure, and the flat board connector lug 4 and sets with conducting rod 1
It is equipped with wiring hole 41.
In order to improve the sealing between interior insulation sealing shroud 8 and conducting rod 1, insulation sleeve 5 and fuel tank cap of transformer 7, institute
Stating the structure of interior insulation sealing shroud 8 has three kinds of organization plans, as follows：
Scheme one：As shown in figure 17, the interior insulation sealing shroud 8 is by base sleeve 86, the and of the lower seal pad being arranged in base sleeve 86 81
Upper sealing gasket 82 is constituted；The outer upper ends of the base sleeve 86 be cone structure, its sleeve joint hole 85 for being provided centrally with up/down perforation,
The conducting rod 1 is located in sleeve joint hole 85；The lower seal pad 81 is located at the bottom of base sleeve 86, and upper sealing gasket 82 is located at down close
The top of packing 81, and upper sealing gasket 82, in outer back-up ring 9, the bottom of the lower seal pad 81 is provided with lower cavity 84, should
Lower cavity 84 coordinates with the flat board connector lug 4 on conducting rod 1, and interval trough is formed between the lower seal pad 81 and upper sealing gasket 82
83, the fuel tank cap of transformer 7 is nested with the interval trough 83, and the lower seal pad 81 and upper sealing gasket 82 are with base sleeve 86 integrally
Shaping, constitutes double end inverted " t " type structure, the interior insulation sealing shroud 8 of the double end inverted " t " type structure and the external diameter of conducting rod 1, it is outer absolutely
Edge covers 5 lumen orifice internal diameters and the top and bottom of lower surface and fuel tank cap of transformer 7 seal cooperation.
Scheme two：As shown in figure 18, the interior insulation sealing shroud 8 is made up of base sleeve 86 and lower seal pad 81；The base sleeve
86 outer upper ends are cone structure, and its sleeve joint hole 85 for being provided centrally with up/down perforation, the conducting rod 1 is located in sleeve joint hole
In 85；The lower seal pad 81 is located at the bottom of base sleeve 86, and it is integrally formed with base sleeve 86, constitutes inverted " t " type structure, should fall
Under the interior insulation sealing shroud 8 of T-shape structure and the external diameter of conducting rod 1, the hole internal diameter of external insulation sleeve 5 and fuel tank cap of transformer 7
Face seals cooperation；The bottom of the lower seal pad 81 is provided with lower cavity 84, the board joint on the lower cavity 84 and conducting rod 1
The end of a thread 4 coordinates；Lower seal 10 is equipped with the interior insulation sealing shroud 8, the lower seal 10 is located at fuel tank cap of transformer 7
Above between the lower surface of external insulation sleeve 5, and it is placed in outer back-up ring 9；The structure type of the lower seal 10 can be
T-shape sealing ring or plain washer；It is close using T-shape when there is gap between fuel tank cap of transformer 7 and interior insulation sealing shroud 8
Seal, as shown in Figure 9 and Figure 10 in sleeve pipe, the lower seal 10 that it is used is T-shape sealing ring；When fuel tank cap of transformer 7
When not existing gap between base 8, using plain washer, as is illustrated by figs. 11 and 12 in sleeve pipe, the lower seal 10 that it is used
It is plain washer.
Scheme three：As shown in figure 19, the interior insulation sealing shroud 8 is by base sleeve 86, the lower seal pad being arranged in base sleeve 86
81 and upper sealing gasket 82 constitute；The outer upper ends of the base sleeve 86 are cone structure, its socket for being provided centrally with up/down perforation
Hole 85, the conducting rod 1 is located in sleeve joint hole 85；The lower seal pad 81 and upper sealing gasket 82 are located at the outside of base sleeve 86,
Sealing gasket 82 is wherein gone up positioned at the top of lower seal pad 81, interval trough 83, institute are formed between lower seal pad 81 and upper sealing gasket 82
State fuel tank cap of transformer 7 to be nested with the interval trough 83, the end of the base sleeve 86 extends in the bottom part down of lower seal pad 81,
Clamping joint 87 is constituted, base 11, the bottom surface of the base 11 and the top surface of flat board connector lug 4 are equipped with outside the clamping joint 87
Palette, and the top of the base 11 is provided with cavity 111, the lower seal pad 81 is located in upper cavity 111；It is described
Lower seal pad 81 and upper sealing gasket 82 are integrally formed with base sleeve 86, or upper insulated enclosure pad 82 is separately provided, the interior insulation
Sealing shroud 8 is equal with the top and bottom of the external diameter, the lumen orifice internal diameter of external insulation sleeve 5 and lower surface and fuel tank cap of transformer 7 of conducting rod 1
Sealing coordinates, wherein upper sealing gasket 82 is located in outer back-up ring 9.
Sleeve pipe is installed with power system and is connected for convenience, and the outside of the metal trim ring 3 or the outside of insulation sleeve 5 are in Huang
Color, green, red and black, correspond to power system a, b, c and o phase connection mark respectively.
This oil-filled transformer is simple, easy for installation with hermetically sealed combined type 1kV grades of sleeve structure, and realizes set
The hermetically sealed internal oil-free function of pipe, it is entirely avoided encapsulant is placed in solar ulatraviolet radiation, while the composition zero of sleeve pipe
Part is few, so as to greatly reduce manufacturing cost, and on the basis of original bushing shell for transformer assembly technology is not changed, it is ensured that
Production efficiency.
It is emphasized that：The above is only presently preferred embodiments of the present invention, not make any formal to the present invention
Limitation, every any simple modification, equivalent variations and modification made to above example according to technical spirit of the invention,
Still fall within the range of technical solution of the present invention.
Claims (9)
1. a kind of oil-filled transformer hermetically sealed combined type 1kV grades of sleeve pipe, including conducting rod（1）, external insulation sleeve（5）, transformation
Device fuel tank cap（7）With interior insulation sealing shroud（8）；It is characterized in that：The external insulation sleeve（5）It is insulator or epoxy resin set, outward
Portion is in umbrella-shaped structure, is internally provided with vestibule, and vestibule is upper and lower two parts, and its middle and lower part is cone structure, external insulation sleeve（5）Bottom
Portion is provided with downward outer back-up ring（9）；The conducting rod（1）One end is the column termination for installing external terminal board, the other end
It is provided with flat board connector lug（4）；The interior insulation sealing shroud（8）It is made up of the material with insulation and sealing function, with bullet
Property, it is easy to compression seal is installed；The interior insulation sealing shroud（8）It is nested with conducting rod（1）Outside, its bottom is by being fixed on
Conducting rod（1）On flat board connector lug（4）It is spacing and be pressed on oil tank of transformer（7）Upper sealing is fixed；The oil tank of transformer
Lid（7）On be provided with and interior insulation sealing shroud（8）The mounting hole of cooperation, interior insulation sealing shroud（8）Through fuel tank cap of transformer（7）
Mounting hole insertion external insulation sleeve（5）Inner chamber；The conducting rod（1）From fuel tank cap of transformer（7）Lower section through interior insulation it is close
Big envelope（8）, and by external insulation sleeve（5）The metal trim ring at top（3）And nut（2）Spacing fixation is simultaneously clamped in oil tank of transformer
Lid（7）On, wherein nut（2）Be arranged on conducting rod（1）The external screw thread screw thread of upper end coordinates, the conducting rod（1）Outside
That is external insulation sleeve（5）Upper sealing gasket is equipped with inside upper end（6）, the upper sealing gasket（6）By metal trim ring（3）Compress close
It is enclosed in external insulation sleeve（5）Upper end inside and conducting rod（1）Between, constitute sealing, the metal trim ring（3）Bottom surface and external insulation
Set（5）Upper surface laminating.
2. oil-filled transformer according to claim 1 is with hermetically sealed combined type 1kV grades of sleeve pipe, it is characterised in that：It is described
Flat board connector lug（4）Be square structure, the equal bevelling in its corner.
3. oil-filled transformer according to claim 2 is with hermetically sealed combined type 1kV grades of sleeve pipe, it is characterised in that：It is described
Flat board connector lug（4）On be provided with wiring hole（41）.
4. oil-filled transformer according to claim 1 is with hermetically sealed combined type 1kV grades of sleeve pipe, it is characterised in that：It is described
Interior insulation sealing shroud（8）By base sleeve（86）, be arranged on base sleeve（86）On lower seal pad（81）With upper sealing gasket（82）Composition；Institute
State base sleeve（86）Outer upper ends be cone structure, its sleeve joint hole for being provided centrally with up/down perforation（85）, the conducting rod（1）
It is located in sleeve joint hole（85）It is interior；The lower seal pad（81）Positioned at base sleeve（86）Bottom, upper sealing gasket（82）Positioned at lower sealing
Pad（81）Top, and upper sealing gasket（82）Positioned at outer back-up ring（9）It is interior, the lower seal pad（81）Bottom be provided with lower cavity
（84）, the lower cavity（84）With conducting rod（1）On flat board connector lug（4）Coordinate, the lower seal pad（81）With upper sealing gasket
（82）Between form interval trough（83）, the fuel tank cap of transformer（7）It is nested with the interval trough（83）It is interior, the lower seal pad
（81）With upper sealing gasket（82）With base sleeve（86）It is integrally formed, constitutes double end inverted " t " type structure, the double end inverted " t " type structure
Interior insulation sealing shroud（8）With conducting rod（1）External diameter, external insulation sleeve（5）Lumen orifice internal diameter and lower surface and oil tank of transformer
Lid（7）Top and bottom seal cooperation.
5. oil-filled transformer according to claim 1 is with hermetically sealed combined type 1kV grades of sleeve pipe, it is characterised in that：It is described
Interior insulation sealing shroud（8）By base sleeve（86）And lower seal pad（81）Composition；The base sleeve（86）Outer upper ends be cone structure,
Its sleeve joint hole for being provided centrally with up/down perforation（85）, the conducting rod（1）It is located in sleeve joint hole（85）It is interior；The lower seal pad
（81）Positioned at base sleeve（86）Bottom, itself and base sleeve（86）Be integrally formed, constitute inverted " t " type structure, the inverted " t " type structure it is interior
Insulated enclosure set（8）With conducting rod（1）External diameter, external insulation sleeve（5）Hole internal diameter and fuel tank cap of transformer（7）Below it is close
Envelope coordinates；The lower seal pad（81）Bottom be provided with lower cavity（84）, the lower cavity（84）With conducting rod（1）On flat board
Connector lug（4）Coordinate；The interior insulation sealing shroud（8）On be equipped with lower seal（10）, the lower seal（10）Positioned at transformation
Device fuel tank cap（7）Above with external insulation sleeve（5）Lower surface between, and be placed in outer back-up ring（9）It is interior.
6. oil-filled transformer according to claim 1 is with hermetically sealed combined type 1kV grades of sleeve pipe, it is characterised in that：It is described
Interior insulation sealing shroud（8）By base sleeve（86）, be arranged on base sleeve（86）On lower seal pad（81）With upper sealing gasket（82）Composition；Institute
State base sleeve（86）Outer upper ends be cone structure, its sleeve joint hole for being provided centrally with up/down perforation（85）, the conducting rod（1）
It is located in sleeve joint hole（85）It is interior；The lower seal pad（81）With upper sealing gasket（82）Positioned at base sleeve（86）Outside, wherein upper close
Packing（82）Positioned at lower seal pad（81）Top, lower seal pad（81）With upper sealing gasket（82）Between form interval trough（83）,
The fuel tank cap of transformer（7）It is nested with the interval trough（83）It is interior, the base sleeve（86）End extend in lower seal pad（81）
Bottom part down, constitute clamping joint（87）, the clamping joint（87）Outside is equipped with base（11）, the base（11）Bottom surface
With flat board connector lug（4）Top surface palette, and the base（11）Top be provided with cavity（111）, it is described under it is close
Packing（81）Positioned at upper cavity（111）It is interior；The lower seal pad（81）With upper sealing gasket（82）With base sleeve（86）It is integrally formed, or
The upper insulated enclosure pad of person（82）It is separately provided, the interior insulation sealing shroud（8）With conducting rod（1）External diameter, external insulation sleeve（5）It is interior
Lumen pore internal diameter and lower surface and fuel tank cap of transformer（7）Top and bottom seal cooperation, wherein upper sealing gasket（82）Positioned at outer
Back-up ring（9）It is interior.
7. oil-filled transformer according to claim 1 is with hermetically sealed combined type 1kV grades of sleeve pipe, it is characterised in that：It is described
Upper sealing gasket（6）It is wedge-type seal circle or circular seal ring or T-shape cross section sealing circle or semi-circular cross-section sealing ring.
8. oil-filled transformer according to claim 1 is with hermetically sealed combined type 1kV grades of sleeve pipe, it is characterised in that：It is described
Lower seal（10）It is T-shape sealing ring or plain washer.
9. oil-filled transformer according to claim 1 is with hermetically sealed combined type 1kV grades of sleeve pipe, it is characterised in that：It is described
Metal trim ring（3）Outside or insulation sleeve（5）Outside be in yellow, green, red and black, respectively corresponding power system a, b,
C and o phase connections are identified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065690.2A CN106783093B (en) | 2017-02-06 | 2017-02-06 | A kind of hermetically sealed combined type 1kV grades of casings of oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065690.2A CN106783093B (en) | 2017-02-06 | 2017-02-06 | A kind of hermetically sealed combined type 1kV grades of casings of oil-immersed transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107610916A (en) * | 2017-10-10 | 2018-01-19 | 苏州翰为电气科技有限公司 | Liquid immersion type power equipment epoxy resin bushing and its manufacture mould and manufacture method |
| CN111401289A (en) * | 2020-03-24 | 2020-07-10 | 国网上海市电力公司 | Intelligent identification method and device for transformer component |
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| CN206532686U (en) * | 2017-02-06 | 2017-09-29 | 苏州翰为电气科技有限公司 | Oil-filled transformer is with hermetically sealed combined type 1kV grades of sleeve pipes |
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| CN101834062A (en) * | 2010-05-14 | 2010-09-15 | 山东达驰电气有限公司 | Sealing structure of bushing insulator and conducting rod and pouring method thereof |
| CN103413659A (en) * | 2013-09-02 | 2013-11-27 | 丹阳市金诺电器有限公司 | Combined type 1-KV level transformer bushing |
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| CN205582698U (en) * | 2016-03-24 | 2016-09-14 | 河北安美电气设备有限公司 | Compound inslation low pressure transformer bushing |
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| CN107610916A (en) * | 2017-10-10 | 2018-01-19 | 苏州翰为电气科技有限公司 | Liquid immersion type power equipment epoxy resin bushing and its manufacture mould and manufacture method |
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| CN111401289A (en) * | 2020-03-24 | 2020-07-10 | 国网上海市电力公司 | Intelligent identification method and device for transformer component |
| CN111401289B (en) * | 2020-03-24 | 2024-01-23 | 国网上海市电力公司 | Intelligent identification method and device for transformer component |
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| CN106783093B (en) | 2019-03-15 |
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