CN208706425U - A kind of energy supply transformer of isolation over the ground - Google Patents
A kind of energy supply transformer of isolation over the ground Download PDFInfo
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- CN208706425U CN208706425U CN201821540624.2U CN201821540624U CN208706425U CN 208706425 U CN208706425 U CN 208706425U CN 201821540624 U CN201821540624 U CN 201821540624U CN 208706425 U CN208706425 U CN 208706425U
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- transformer
- energy supply
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- upper mounted
- isolation over
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Abstract
The utility model relates to a kind of energy supply transformers of isolation over the ground, including upper cover plate, pedestal and the composite bushing being arranged between, and the more than one transformer device in composite bushing is set in the way of plural serial stage, transformer device includes upper mounted plate and bottom plate, and the transformer and equalizing capacitance of setting parallel connection between the two, more than two insulated pull rods are provided between upper mounted plate and bottom plate, the side of the upper mounted plate of the top is evenly arranged with several top braces components, and grading shield is provided between adjacent transformers component, multiple support slippers are connected on the outside of grading shield.The tandem type structure that the utility model uses effectively prevent breakdown fault over the ground, at different levels to be supported in internal surface of sleeve pipe, transports its reliable easy for installation, stage transformers parallel equalizing capacitor, reduces each step voltage nonuniformity coefficient.
Description
Technical field
The utility model belongs to isolating transformer technical field, and in particular to a kind of energy supply transformer of isolation over the ground.
Background technique
In the application fields such as high voltage DC breaker, high-voltage AC breaker and fault current limiter, high-speed switch, energy storage
Device and some other equipment are in high potential, these equipment high potential energy collectings can use capacitance type potential transformer
(CVT), this mode is by being coupled out voltage in main network system, can be according in order to solve that CVT takes the disadvantage is that main power grid can be relied on by taking
Rely property problem, needs to provide power supply from ground potential to high potential using a kind of independently stable power-supply system.
Utility model content
The purpose of the utility model is to provide a kind of energy supply transformer of isolation over the ground, with solve transformer be difficult to independently to
The high potential function of a voltage class the problem of.
A kind of energy supply transformer of isolation over the ground of the utility model is achieved in that
A kind of energy supply transformer of isolation over the ground, including upper cover plate, pedestal and the composite bushing being arranged between, and
More than one transformer device in composite bushing is set in the way of plural serial stage, and the transformer device includes upper
Fixed plate and bottom plate, and the transformer and equalizing capacitance of setting parallel connection between the two, fixed plate and lower fixation
More than two insulated pull rods are provided between plate, the side of the fixed plate of the top is evenly arranged with several tops
Support component, and grading shield is provided between adjacent transformers component, multiple support slippers are connected on the outside of the grading shield.
Further, shield is provided at the top of the upper cover plate, bottom is provided with the drying in composite bushing
Box is placed with adsorbent of molecular sieve in the drying box.
Further, the top braces component includes holding nut and is connected to across the holding nut described solid
The studdle of fixed board side, and it is connected to the support nut of the studdle outer end；
The side of fixed plate is provided with the threaded hole to match with studdle.
Further, the studdle and holding nut are Vaccum Permeating glue stick, and the support nut is self-lubricating material.
Further, the both ends of the insulated pull rod pass through respectively screw thread and its where transformer device upper mounted plate and
Bottom plate is connected.
Further, transformer device where the top of the transformer and equalizing capacitance is fixed on it by soft aluminium sheet
The bottom of upper mounted plate.
Further, the grading shield cover in two neighboring transformer device the bottom plate of higher level's transformer device and
The outside of the upper mounted plate of junior's transformer device；
The grading shield is aluminium sheet.
Further, the support slipper is arranged in the outside of the grading shield, and using sequentially pass through support slipper and
The insulated bolt of grading shield is connected on the side wall of the bottom plate on the inside of the grading shield and upper mounted plate；
The support slipper is self-lubricating material.
Further, the bottom of the composite bushing is connected by adapter flange with pedestal, and the adapter flange is arranged
There are triple valve and elaterometer, passes through triple valve in the composite bushing filled with SF6 gas.
It is further, adjacent in the upper cover plate, composite bushing, adapter flange and pedestal that be provided with O shape between the two close
Seal.
After above-mentioned technical proposal, the utility model is had the beneficial effect that
(1) the utility model uses tandem type structure, independently can provide power supply, and satisfaction pair from ground potential to high potential
The requirement that ground is become attached to effectively prevent breakdown fault over the ground；
(2) at different levels in the utility model to be supported on composite bushing inner wall, guarantee the stability of radial supports at different levels, transports
It is defeated reliable and easy for installation；
(3) stage transformers parallel equalizing capacitor in the utility model reduces each step voltage nonuniformity coefficient.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure chart of the energy supply transformer of isolation over the ground of the preferred embodiment in the utility model；
Fig. 2 is the internal structure chart of the energy supply transformer of isolation over the ground of the preferred embodiment in the utility model；
Fig. 3 is the enlarged drawing of part A in Fig. 2；
Fig. 4 is the enlarged drawing of part B in Fig. 2；
In figure: upper cover plate 1, pedestal 2, composite bushing 3, upper mounted plate 4, bottom plate 5, transformer 6, equalizing capacitance 7, absolutely
Edge pull rod 8, top braces component 9, holding nut 91, studdle 92 support nut 93, grading shield 10, and support slipper 11 is prevented
Shield 12, drying box 13, through hole 14, adapter flange 15.
Specific embodiment
It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this
Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment is fallen within the protection scope of the utility model.
Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the utility model of protection is sought, but is merely representative of the selected embodiment of the utility model.Based on the utility model
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Mode is fallen within the protection scope of the utility model.
It please refers to Fig. 1-4, a kind of energy supply transformer of isolation over the ground, including upper cover plate 1, pedestal 2 and is arranged between
Composite bushing 3, and the more than one transformer device being arranged in the way of plural serial stage in composite bushing 3 becomes
Depressor component includes upper mounted plate 4 and bottom plate 5, and transformer 6 and equalizing capacitance 7 in parallel between the two is arranged, on
More than two insulated pull rods 8 are provided between fixed plate 4 and bottom plate 5, the side of the upper mounted plate 4 of the top is uniformly set
Several top braces components 9 are equipped with, and are provided with grading shield 10 between adjacent transformers component, the outside connection of grading shield 10
There are multiple support slippers 11.
The top of upper cover plate 1 is provided with shield 12, and the setting of shield 12 can be to the top of isolation energy supply transformer
Connecting terminal plays protection and sealing function.
Isolation energy supply inside transformer needs to keep insulation, but it is internal it is possible that micro after prolonged use
Water, can be such that the insulation performance of equipment substantially reduces, and will lead to the major accidents such as insulation breakdown, burning apparatus when serious, therefore
1 bottom of upper cover plate is provided with the drying box 13 in composite bushing 3 in the present embodiment, and molecular sieve suction is placed in drying box 3
Attached dose.Adsorbent of molecular sieve has stronger adsorption capacity, and selective strong, can targetedly adsorb isolation energy supply transformation
Micro- water in device, and when isolation energy supply transformer work generates big calorimetric, it also will not influence its adsorption capacity, guarantee inside it
Insulation effect.
The setting of top braces component 9 is to be used to support transformer device, is firmly mounted to the transformer device multiple
Inside trap pipe 3, in order to guarantee the stability of support, which can be according to transformer device and composite bushing
The distance between be adjusted its bearing length, in the present embodiment, top braces component 9 includes holding nut 91 and passes through support
Nut 91 is connected to the studdle 92 of 4 side of upper mounted plate, and is connected to the support nut 93 of 92 outer end of studdle；On
The side of fixed plate 4 is provided with the threaded hole to match with studdle 92.
Specifically, studdle 92 is that both ends are respectively provided with threaded screw rod, need first support spiral shell when installation
Female 91 sets, in one end, then screw in the end in the threaded hole of upper mounted plate 4, in the other end connection of studdle 92
Nut 93 is supported, studdle 92 is then adjusted according to the distance between transformer device and composite bushing and is screwed in threaded hole
Holding nut 91 after the completion of adjustment, is screwed the side wall against upper mounted plate 4 by distance, supports nut 93 to hold out against compound sleeve at this time
3 inner wall of pipe, plays a supporting role to transformer device.
When energy supply transformer traverse will be isolated, studdle 92 is played to the main supporting role of transformer device, because
This studdle 92 needs intensity with higher, and studdle 92 and holding nut 91 are Vaccum Permeating glue stick in the present embodiment,
Vaccum Permeating glue stick not only high mechanical strength, but also good insulation preformance, it is ensured that the fastness of the fixation of transformer device.
Support nut 93 is directly contacted with the inner wall of composite bushing 3, in order to reduce between remaining composite bushing 3 during installation
Frictional force, therefore support nut 93 be self-lubricating material.
Insulated pull rod 8 is connected between upper mounted plate 4 and bottom plate 5 and plays a supporting role, reduce transformer 6 and
The stress condition of voltage capacitance 7, and for convenience between the dismounting and its both ends upper mounted plate 4 and bottom plate 5 of insulated pull rod 8
The adjustment of distance, the both ends of insulated pull rod 8 pass through the upper mounted plate 4 and bottom plate of screw thread and transformer device where it respectively
5 are connected.
Specifically, the both ends of insulated pull rod 8 are provided with internal screw thread, peace is respectively arranged on upper mounted plate 4 and bottom plate 5
Hole is filled, the interior spiral shell at 8 both ends of insulated pull rod is connected to by the mounting hole that screw is each passed through on upper mounted plate 4 and bottom plate 5
In line, so that insulated pull rod 8 is fixed between upper mounted plate 4 and bottom plate 5.
When connection, main branch is played in the connection between bottom and bottom plate 5 for transformer 6 and equalizing capacitance 7
Booster action is played in support effect, the connection between top and upper mounted plate 4, and insulated pull rod 8 is to transformer 6 and equalizing capacitance 7
Play a supporting role, but insulated pull rod 8 during installation it is possible that certain deviation, and this deviation can make transformation
Device 6 and equalizing capacitance 7 receive certain pulling force or pressure, be easy to cause it to damage in stress, therefore transformer 6 and press
The bottom of the upper mounted plate 4 of transformer device where the top of capacitor 7 is fixed on it by soft aluminium sheet.The setting of soft aluminium sheet can be with
7 stress of transformer 6 and equalizing capacitance is avoided, prevents it from damaging, guarantees the normal operation of entire isolation energy supply transformer.
Grading shield 10 covers on the bottom plate 5 and junior's transformer of higher level's transformer device in two neighboring transformer device
The outside of the upper mounted plate 4 of component；Grading shield 10 can be to the protrusion cascaded structure of adjacent transformers component connecting portion
Connecting portion plays the role of equal piezoelectric field.And protrusion herein is that insulated pull rod 8 is fixed on 4 He of upper mounted plate
The head etc. of screw on bottom plate 5.
Grading shield 10 is aluminium sheet.
Specifically, thin aluminum sheet can be used in grading shield 10, and while playing the role of pressure, light weight, without other
Working process can have good corrosion proof function.
In addition, in order to guarantee the stability supported between attached transformer component, 5 He of bottom plate of 10 inside of grading shield
It is supported between upper mounted plate 4 using equally distributed supporting studs.
Support slipper 11 is directly contacted with the inner wall of composite bushing 3, can be in isolation features transformer traverse, to transformation
Device assembly is played a supporting role, and the outside of grading shield 10 is arranged in support slipper 11, and utilizes and sequentially pass through 11 He of support slipper
The insulated bolt of grading shield 10 is connected on the bottom plate 5 of 10 inside of grading shield and the side wall of upper mounted plate 4；
Specifically, at least provided with two through holes 14 on each support slipper 11, and it is opposite with through hole 14 equal
Through-hole is also equipped on pressure cover 10, and insulated bolt can sequentially pass through through hole 14 and through-hole is connected to the upper mounted plate on the inside of it
4 and bottom plate 5 side wall on, if setting there are two through hole 14 and insulated bolt, on upper mounted plate 4 and bottom plate 5
It is separately connected one, can guarantee the stability connected between adjacent transformers component in this way.
Support slipper 11 is self-lubricating material.Transformations at different levels can installed in composite bushing 3 using self-lubricating material
When device assembly, reduces the frictional force between support slipper 11 and 3 inner wall of composite bushing, improve the convenience and efficiency of installation.
In order to improve the dielectric strength of isolation energy supply inside transformer, the bottom of composite bushing 3 by adapter flange 15 with
Pedestal 2 is connected, and adapter flange 15 is provided with triple valve and elaterometer, passes through triple valve in composite bushing 3 filled with SF6 gas
Body.And the setting of elaterometer can grasp the density and pressure of SF6 gas in composite bushing 3 in real time.
In order to guarantee the sealing performance of isolation energy supply transformer, its internal insulation effect of SF6 gas leakage contribution is avoided,
It is adjacent in upper cover plate 1, composite bushing 3, adapter flange 15 and pedestal 2 to be provided with O-ring seals between the two.
The specific implementation method of the present embodiment:
(1) when single-stage is installed, insulated pull rod 8 is supported on the upper mounted plate 4 of transformer device where it and lower solid first
Between fixed board 5, then the bottom end of transformer 6 and equalizing capacitance 7 is fixed on the bottom plate 5, top is solid by soft aluminium sheet
It is scheduled on upper mounted plate 4；
(2) it is fixedly connected between adjacent transformers component by studdle, series can be according to actual use demand
It determines；
(3) installation of plural serial stage structure is held out against in composite bushing 3 with composite bushing 3 by top braces component 9
Wall, support slipper 11 at different levels are played a supporting role.
Isolating transformer over the ground provided by the utility model, uses tandem type structure, can independently from ground potential to
High potential provides power supply, and meets the requirement of insulation against ground, while solving the problems, such as multistage transformer radial support.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
In the description of the present invention, it should be understood that indicating position or the term of positional relationship are based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute
The equipment or element of finger must have a particular orientation, is constructed and operated in a specific orientation, therefore should not be understood as to this reality
With novel limitation.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the present invention unless specifically defined or limited otherwise, fisrt feature is on or below second feature
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the
Right above two features and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is in the second spy
Under sign, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of fisrt feature level
Height is less than second feature.
Claims (10)
1. a kind of energy supply transformer of isolation over the ground, it is characterised in that: including upper cover plate (1), pedestal (2) and be arranged between
Composite bushing (3), and the more than one transformer group being arranged in the way of plural serial stage in composite bushing (3)
Part, the transformer device include upper mounted plate (4) and bottom plate (5), and the transformer (6) of setting parallel connection between the two
With equalizing capacitance (7), more than two insulated pull rods (8) are provided between fixed plate (4) and bottom plate (5), most
The side of the fixed plate (4) of upper end is evenly arranged with several top braces components (9), and adjacent transformers component it
Between be provided with grading shield (10), be connected with multiple support slippers (11) on the outside of the grading shield (10).
2. the energy supply transformer of isolation over the ground according to claim 1, it is characterised in that: set at the top of the upper cover plate (1)
It is equipped with shield (12), bottom is provided with the drying box (13) in composite bushing (3), is placed in the drying box (13)
Adsorbent of molecular sieve.
3. the energy supply transformer of isolation over the ground according to claim 1, it is characterised in that: top braces component (9) packet
It includes holding nut (91) and passes through the studdle (92) that the holding nut (91) are connected to fixed plate (4) side,
And it is connected to the support nut (93) of the studdle (92) outer end；
The side of fixed plate (4) is provided with the threaded hole to match with studdle (92).
4. the energy supply transformer of isolation over the ground according to claim 3, it is characterised in that: the studdle (92) and support
Nut (91) is Vaccum Permeating glue stick, and the support nut (93) is self-lubricating material.
5. the energy supply transformer of isolation over the ground according to claim 1, it is characterised in that: the both ends of the insulated pull rod (8)
It is connected respectively by screw thread with the upper mounted plate (4) of transformer device where it and bottom plate (5).
6. the energy supply transformer of isolation over the ground according to claim 1, it is characterised in that: the transformer (6) and equal piezoelectricity
The bottom of the upper mounted plate (4) of transformer device where the top of appearance (7) is fixed on it by soft aluminium sheet.
7. the energy supply transformer of isolation over the ground according to claim 1, it is characterised in that: the grading shield (10) covers on adjacent
The upper mounted plate (4) of the bottom plate (5) and junior's transformer device of higher level's transformer device is outer in two transformer devices
Side；
The grading shield (10) is aluminium sheet.
8. the energy supply transformer of isolation over the ground according to claim 7, it is characterised in that: support slipper (11) setting exists
The outside of the grading shield (10), and utilization sequentially passes through support slipper (11) and the insulated bolt of grading shield (10) is connected to institute
On the side wall for stating the bottom plate (5) and upper mounted plate (4) on the inside of grading shield (10)；
The support slipper (11) is self-lubricating material.
9. the energy supply transformer of isolation over the ground according to claim 1, it is characterised in that: the bottom of the composite bushing (3)
It is connected by adapter flange (15) with pedestal (2), and the adapter flange (15) is provided with triple valve and elaterometer, it is described
By triple valve filled with SF6 gas in composite bushing (3).
10. the energy supply transformer of isolation over the ground according to claim 9, it is characterised in that: the upper cover plate (1), compound sleeve
It is adjacent in pipe (3), adapter flange (15) and pedestal (2) to be provided with O-ring seals between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821540624.2U CN208706425U (en) | 2018-09-19 | 2018-09-19 | A kind of energy supply transformer of isolation over the ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821540624.2U CN208706425U (en) | 2018-09-19 | 2018-09-19 | A kind of energy supply transformer of isolation over the ground |
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| Publication Number | Publication Date |
|---|---|
| CN208706425U true CN208706425U (en) | 2019-04-05 |
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ID=65947128
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821540624.2U Active CN208706425U (en) | 2018-09-19 | 2018-09-19 | A kind of energy supply transformer of isolation over the ground |
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| CN (1) | CN208706425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215996A (en) * | 2018-09-19 | 2019-01-15 | 常州博瑞电力自动化设备有限公司 | A kind of energy supply transformer of isolation over the ground |
-
2018
- 2018-09-19 CN CN201821540624.2U patent/CN208706425U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215996A (en) * | 2018-09-19 | 2019-01-15 | 常州博瑞电力自动化设备有限公司 | A kind of energy supply transformer of isolation over the ground |
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