CN109215996B - Ground isolation energy supply transformer - Google Patents
Ground isolation energy supply transformer Download PDFInfo
- Publication number
- CN109215996B CN109215996B CN201811118506.7A CN201811118506A CN109215996B CN 109215996 B CN109215996 B CN 109215996B CN 201811118506 A CN201811118506 A CN 201811118506A CN 109215996 B CN109215996 B CN 109215996B
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- transformer
- fixing plate
- supporting
- upper fixing
- voltage
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- 238000002955 isolation Methods 0.000 title claims abstract description 25
- 239000002131 composite material Substances 0.000 claims abstract description 33
- 239000003990 capacitor Substances 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 5
- 239000003463 adsorbent Substances 0.000 claims description 4
- 239000002808 molecular sieve Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/16—Cascade transformers, e.g. for use with extra high tension
-
- 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
- H01F27/02—Casings
-
- 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
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Insulators (AREA)
Abstract
The invention relates to a ground isolation energy supply transformer which comprises an upper cover plate, a base, a composite sleeve arranged between the upper cover plate and the base, and more than one transformer component arranged in the composite sleeve in a multistage series connection mode, wherein the transformer component comprises an upper fixing plate, a lower fixing plate, and a transformer and a voltage-sharing capacitor which are arranged in parallel connection between the upper fixing plate and the lower fixing plate, more than two insulating pull rods are arranged between the upper fixing plate and the lower fixing plate, a plurality of top supporting components are uniformly arranged on the side face of the upper fixing plate at the uppermost end, a voltage-sharing cover is arranged between the adjacent transformer components, and a plurality of supporting sliding blocks are connected to the outer side of the voltage-sharing cover. The cascade structure adopted by the invention effectively prevents ground breakdown faults, each stage is supported on the inner wall of the sleeve, the transportation is reliable, the installation is convenient, each stage of transformers are connected with the voltage-equalizing capacitor in parallel, and the voltage non-uniformity coefficient of each stage is reduced.
Description
Technical Field
The invention belongs to the technical field of isolation transformers, and particularly relates to a ground isolation energy supply transformer.
Background
In the application fields of high-voltage direct-current circuit breakers, high-voltage alternating-current circuit breakers, fault current limiters and the like, a fast switch, an energy storage device and other devices are in high potential, and a Capacitive Voltage Transformer (CVT) can be adopted for high-potential energy taking of the devices.
Disclosure of Invention
The invention aims to provide a ground isolation energy supply transformer so as to solve the problem that the transformer is difficult to independently supply high potential functions of various voltage classes.
The invention relates to a ground isolation energy supply transformer, which is realized by the following steps:
The utility model provides an keep apart energy supply transformer to ground, includes upper cover plate, base and the compound sleeve pipe of setting between the two to and set up the transformer subassembly more than one in compound sleeve pipe according to multistage series connection's mode, the transformer subassembly includes fixed plate and lower fixed plate, and sets up parallelly connected transformer and voltage-sharing electric capacity between the two, be provided with the insulating pull rod more than two between upper fixed plate and the lower fixed plate, the top the side of upper fixed plate evenly is provided with a plurality of top supporting component, and is provided with the equalizing cover between the adjacent transformer subassembly, the outside of equalizing cover is connected with a plurality of supporting sliders.
Further, the top of upper cover plate is provided with the protection casing, and the bottom is provided with the dry box that is located the composite sleeve pipe, molecular sieve adsorbent has been placed in the dry box.
Further, the top support assembly comprises a support nut, a support screw rod connected to the side surface of the upper fixing plate through the support nut, and a support screw cap connected to the outer end of the support screw rod;
The side of the upper fixing plate is provided with a threaded hole matched with the supporting screw.
Further, the supporting screw rod and the supporting nut are vacuum gum dipping rods, and the supporting nut is made of self-lubricating materials.
Further, two ends of the insulation pull rod are respectively connected with an upper fixing plate and a lower fixing plate of the transformer assembly where the insulation pull rod is located through threads.
Further, the top of the transformer and the voltage-sharing capacitor is fixed at the bottom of the upper fixing plate of the transformer assembly where the transformer and the voltage-sharing capacitor are located through a soft aluminum plate.
Further, the voltage equalizing cover covers the outer sides of the lower fixing plate of the upper-stage transformer assembly and the upper fixing plate of the lower-stage transformer assembly in the adjacent two transformer assemblies;
The pressure equalizing cover is an aluminum plate.
Further, the supporting slide block is arranged at the outer side of the pressure equalizing cover and is connected to the side walls of the lower fixing plate and the upper fixing plate at the inner side of the pressure equalizing cover by utilizing insulating bolts which sequentially penetrate through the supporting slide block and the pressure equalizing cover;
The supporting sliding block is made of self-lubricating materials.
Further, the bottom of the composite sleeve is connected with the base through the adapter flange, the adapter flange is provided with a three-way valve and a gas densimeter, and SF6 gas is filled in the composite sleeve through the three-way valve.
Furthermore, an O-shaped sealing ring is arranged between two adjacent upper cover plates, the composite sleeve, the adapter flange and the base.
After the technical scheme is adopted, the invention has the following beneficial effects:
(1) The invention adopts a cascade structure, can independently provide power from the ground potential to the high potential, meets the requirements on the ground junction edge, and effectively prevents the breakdown fault of the ground;
(2) According to the invention, each stage is supported on the inner wall of the composite sleeve, so that the stability of radial support of each stage is ensured, and the composite sleeve is reliable in transportation and convenient to install;
(3) In the invention, the transformers at all levels are connected with the voltage equalizing capacitor in parallel, so that the voltage non-uniformity coefficient of each level is reduced.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a block diagram of a ground isolation power transformer in accordance with a preferred embodiment of the present invention;
FIG. 2 is an internal block diagram of a ground isolation power transformer in accordance with a preferred embodiment of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 2;
In the figure: the transformer comprises an upper cover plate 1, a base 2, a composite sleeve 3, an upper fixing plate 4, a lower fixing plate 5, a transformer 6, a voltage-sharing capacitor 7, an insulating pull rod 8, a top supporting component 9, a supporting nut 91, a supporting screw 92, a supporting nut 93, a voltage-sharing cover 10, a supporting slide block 11, a protective cover 12, a drying box 13, a through hole 14 and an adapter flange 15.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Referring to fig. 1-4, a ground isolation energy supply transformer comprises an upper cover plate 1, a base 2, a composite sleeve 3 arranged between the upper cover plate and the base, and more than one transformer component arranged in the composite sleeve 3 in a multistage series connection mode, wherein the transformer component comprises an upper fixing plate 4, a lower fixing plate 5, a transformer 6 and a voltage-sharing capacitor 7 which are arranged in parallel between the upper fixing plate 4 and the lower fixing plate 5, more than two insulating pull rods 8 are arranged between the upper fixing plate 4 and the lower fixing plate 5, a plurality of top supporting components 9 are uniformly arranged on the side face of the upper fixing plate 4 at the uppermost end, a voltage-sharing cover 10 is arranged between the adjacent transformer components, and a plurality of supporting sliding blocks 11 are connected to the outer side of the voltage-sharing cover 10.
The top of upper cover plate 1 is provided with protection casing 12, and the setting of protection casing 12 can play protection and sealed effect to isolating the top binding post of energy supply transformer.
The insulation energy supply transformer needs to be kept insulated, but after long-time use, trace water can be generated in the insulation energy supply transformer, so that the insulation performance of equipment is greatly reduced, and serious accidents such as insulation breakdown and equipment burning can be caused, so that the bottom of the upper cover plate 1 in the embodiment is provided with a drying box 13 positioned in the composite sleeve 3, and a molecular sieve adsorbent is placed in the drying box 3. The molecular sieve adsorbent has strong adsorption capacity and strong selectivity, can pertinently adsorb micro water in the isolation energy supply transformer, and can not influence the adsorption capacity of the isolation energy supply transformer when the isolation energy supply transformer works to generate a large amount of heat, thereby ensuring the insulation effect in the isolation energy supply transformer.
The top support assembly 9 is provided for supporting the transformer assembly so that the transformer assembly is stably mounted inside the composite bushing 3, and in order to ensure the stability of the support, the top support assembly 9 may be adjusted in its support length according to the distance between the transformer assembly and the composite bushing, and in this embodiment, the top support assembly 9 includes a support nut 91 and a support screw 92 connected to the side of the upper fixing plate 4 through the support nut 91, and a support nut 93 connected to the outer end of the support screw 92; the side of the upper fixing plate 4 is provided with a screw hole matched with the supporting screw 92.
Specifically, the supporting screw 92 is a screw with threads at two ends, when the transformer is installed, the supporting screw 91 needs to be sleeved at one end of the supporting screw, then the end is screwed into the threaded hole of the upper fixing plate 4, the supporting screw 93 is connected to the other end of the supporting screw 92, then the distance between the supporting screw 92 and the threaded hole is adjusted according to the distance between the transformer component and the composite sleeve, after the adjustment is completed, the supporting screw 91 is screwed tightly against the side wall of the upper fixing plate 4, and at the moment, the supporting screw 93 abuts against the inner wall of the composite sleeve 3, so that the transformer component is supported.
When will keep apart the energy supply transformer transversely put, the supporting screw 92 plays the main supporting role to the transformer subassembly, consequently the supporting screw 92 needs to have higher intensity, and supporting screw 92 and supporting nut 91 are the vacuum impregnation stick in this embodiment, and the vacuum impregnation stick is not only mechanical strength high, and insulating properties is good moreover, can guarantee the fastness of the fixed of transformer subassembly.
The support nut 93 is in direct contact with the inner wall of the composite sleeve 3, so that the support nut 93 is made of a self-lubricating material in order to reduce friction between the remaining composite sleeves 3 during installation.
The insulation pull rod 8 is connected between the upper fixing plate 4 and the lower fixing plate 5 to play a supporting role, so that the stress condition of the transformer 6 and the voltage-sharing capacitor 7 is reduced, and in order to facilitate the disassembly and assembly of the insulation pull rod 8 and the adjustment of the distance between the upper fixing plate 4 and the lower fixing plate 5 at the two ends of the insulation pull rod, the two ends of the insulation pull rod 8 are respectively connected with the upper fixing plate 4 and the lower fixing plate 5 of a transformer assembly where the insulation pull rod is located through threads.
Specifically, the two ends of the insulating pull rod 8 are provided with internal threads, the upper fixing plate 4 and the lower fixing plate 5 are respectively provided with mounting holes, and the screws respectively penetrate through the mounting holes on the upper fixing plate 4 and the lower fixing plate 5 and are connected in the internal threads at the two ends of the insulating pull rod 8, so that the insulating pull rod 8 is fixed between the upper fixing plate 4 and the lower fixing plate 5.
When the transformer 6 and the voltage-sharing capacitor 7 are connected, the connection between the bottom of the transformer 6 and the lower fixed plate 5 plays a main supporting role, the connection between the top of the transformer and the upper fixed plate 4 plays an auxiliary role, the insulating pull rod 8 plays a supporting role on the transformer 6 and the voltage-sharing capacitor 7, but certain deviation can occur in the installation process of the insulating pull rod 8, the deviation can enable the transformer 6 and the voltage-sharing capacitor 7 to receive certain tensile force or pressure, and damage to the transformer 6 and the voltage-sharing capacitor 7 is easily caused when the transformer is stressed, so that the top of the transformer 6 and the voltage-sharing capacitor 7 is fixed at the bottom of the upper fixed plate 4 of a transformer component where the transformer is located through a soft aluminum plate. The soft aluminum plate can avoid the stress of the transformer 6 and the voltage-sharing capacitor 7, prevent the damage of the transformer and ensure the normal operation of the whole isolation energy supply transformer.
The equalizing cover 10 covers the outer sides of the lower fixing plate 5 of the upper transformer assembly and the upper fixing plate 4 of the lower transformer assembly in the adjacent two transformer assemblies; the equalizing cover 10 may serve as an equalizing field for the connection portions of the series structure of the protruding portions of the connection portions of the adjacent transformer assemblies. The protruding portions here are the heads of the screws or the like that fix the insulating tie bar 8 to the upper fixing plate 4 and the lower fixing plate 5.
The pressure equalizing cover 10 is an aluminum plate.
In particular, the pressure equalizing cover 10 may be made of a thin aluminum plate, which has a pressure equalizing effect, and is light in weight, and has a good corrosion preventing function without additional processing.
In addition, in order to ensure the stability of the support between the connected transformer assemblies, the lower fixing plate 5 and the upper fixing plate 4 inside the pressure equalizing cover 10 are supported by uniformly distributed support studs.
The supporting slide block 11 is directly contacted with the inner wall of the composite sleeve 3, can play a role in supporting a transformer assembly when the isolating function transformer is transversely placed, and the supporting slide block 11 is arranged on the outer side of the voltage equalizing cover 10 and is connected to the side walls of the lower fixing plate 5 and the upper fixing plate 4 on the inner side of the voltage equalizing cover 10 by utilizing insulating bolts which sequentially pass through the supporting slide block 11 and the voltage equalizing cover 10;
Specifically, at least two through holes 14 are formed in each supporting slider 11, through holes are formed in the equalizing cover 10 opposite to the through holes 14, insulating bolts can sequentially penetrate through the through holes 14 and the through holes and are connected to the side walls of the upper fixing plate 4 and the lower fixing plate 5 on the inner sides of the through holes, and if two through holes 14 and the insulating bolts are formed, one upper fixing plate 4 and one lower fixing plate 5 are respectively connected, so that the connection stability between adjacent transformer assemblies can be ensured.
The supporting slider 11 is made of self-lubricating material. When the transformer components at all levels can be installed in the reciprocating sleeve 3 by adopting the self-lubricating material, the friction between the supporting sliding block 11 and the inner wall of the composite sleeve 3 is reduced, and the convenience and the efficiency of installation are improved.
In order to improve the insulation strength of the inside of the isolation energy supply transformer, the bottom of the composite sleeve 3 is connected with the base 2 through the adapter flange 15, the adapter flange 15 is provided with a three-way valve and a gas densimeter, and SF6 gas is filled in the composite sleeve 3 through the three-way valve. The density and the pressure of SF6 gas in the composite sleeve 3 can be mastered in real time by the arrangement of the gas densimeter.
In order to ensure the sealing performance of the isolation energy supply transformer and avoid the influence of SF6 gas leakage on the insulation effect inside the isolation energy supply transformer, an O-shaped sealing ring is arranged between the upper cover plate 1, the composite sleeve 3, the adapter flange 15 and the adjacent two of the base 2.
The specific implementation method of the embodiment comprises the following steps:
(1) When in single-stage installation, firstly, an insulating pull rod 8 is supported between an upper fixing plate 4 and a lower fixing plate 5 of a transformer assembly where the insulating pull rod is positioned, then the bottom ends of a transformer 6 and a voltage-sharing capacitor 7 are fixed on the lower fixing plate 5, and the top ends of the transformer 6 and the voltage-sharing capacitor 7 are fixed on the upper fixing plate 4 through a soft aluminum plate;
(2) The adjacent transformer components are fixedly connected through supporting screws, and the number of stages can be determined according to actual use requirements;
(3) The multistage series structure is installed in the composite sleeve 3, the inner wall of the composite sleeve 3 is propped up by the top supporting component 9, and the supporting sliding blocks 11 of each stage play a supporting role.
The ground isolation transformer provided by the invention adopts a cascade structure, can independently provide power from the ground potential to the high potential, meets the requirement of ground insulation, and simultaneously solves the problem of radial support of the multi-stage transformer.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
In the description of the present invention, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Claims (7)
1. An isolated energy supply transformer to ground, characterized in that: the transformer comprises an upper cover plate (1), a base (2) and a composite sleeve (3) arranged between the upper cover plate and the base, and a transformer assembly arranged in the composite sleeve (3) in a multistage series connection mode, wherein the transformer assembly comprises an upper fixing plate (4) and a lower fixing plate (5), and a transformer (6) and a voltage-sharing capacitor (7) which are arranged in parallel between the upper fixing plate and the lower fixing plate, more than two insulating pull rods (8) are arranged between the upper fixing plate (4) and the lower fixing plate (5), a plurality of top supporting assemblies (9) are uniformly arranged on the side face of the upper fixing plate (4) at the uppermost end, a voltage-sharing cover (10) is arranged between adjacent transformer assemblies, and a plurality of supporting sliding blocks (11) are connected to the outer side of the voltage-sharing cover (10);
The top support assembly (9) comprises a support nut (91), a support screw rod (92) connected to the side surface of the upper fixing plate (4) through the support nut (91), and a support screw cap (93) connected to the outer end of the support screw rod (92);
The side surface of the upper fixing plate (4) is provided with a threaded hole matched with the supporting screw rod (92);
The supporting screw rod (92) and the supporting nut (91) are vacuum dipping rods, and the supporting nut (93) is made of self-lubricating materials;
the supporting screw rod (92) is a screw rod with threads at two ends, when the transformer is installed, the supporting screw rod (92) is sleeved with the supporting nut (91) at one end, then the end is screwed into a threaded hole of the upper fixing plate (4), the other end of the supporting screw rod (92) is connected with the supporting nut (93), then the distance of the supporting screw rod (92) screwed into the threaded hole is adjusted according to the distance between the transformer component and the composite sleeve (3), after the adjustment is completed, the supporting nut (91) is screwed tightly against the side wall of the upper fixing plate (4), and at the moment, the supporting nut (93) is tightly propped against the inner wall of the composite sleeve (3), so that the transformer component is supported;
the voltage equalizing cover (10) covers the outer sides of the lower fixing plate (5) of the upper transformer assembly and the upper fixing plate (4) of the lower transformer assembly in the adjacent two transformer assemblies;
The pressure equalizing cover (10) is an aluminum plate;
the support slide block (11) is arranged on the outer side of the pressure equalizing cover (10), and is connected to the side walls of the lower fixing plate (5) and the upper fixing plate (4) on the inner side of the pressure equalizing cover (10) by utilizing insulating bolts which sequentially penetrate through the support slide block (11) and the pressure equalizing cover (10).
2. The ground isolation power transformer of claim 1, wherein: the top of upper cover plate (1) is provided with protection casing (12), and the bottom is provided with drying box (13) that are located in compound sleeve pipe (3), molecular sieve adsorbent has been placed in drying box (13).
3. The ground isolation power transformer of claim 1, wherein: the two ends of the insulating pull rod (8) are respectively connected with an upper fixing plate (4) and a lower fixing plate (5) of the transformer assembly where the insulating pull rod is arranged through threads.
4. The ground isolation power transformer of claim 1, wherein: the top of the transformer (6) and the voltage-sharing capacitor (7) are fixed at the bottom of the upper fixing plate (4) of the transformer assembly where the transformer is located through a soft aluminum plate.
5. The ground isolation power transformer of claim 1, wherein: the supporting sliding block (11) is made of self-lubricating materials.
6. The ground isolation power transformer of claim 1, wherein: the bottom of the composite sleeve (3) is connected with the base (2) through the adapter flange (15), the adapter flange (15) is provided with a three-way valve and a gas densimeter, and SF6 gas is filled in the composite sleeve (3) through the three-way valve.
7. The ground isolation power transformer of claim 6, wherein: an O-shaped sealing ring is arranged between two adjacent upper cover plates (1), the composite sleeve (3), the adapter flange (15) and the base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118506.7A CN109215996B (en) | 2018-09-19 | 2018-09-19 | Ground isolation energy supply transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118506.7A CN109215996B (en) | 2018-09-19 | 2018-09-19 | Ground isolation energy supply transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109215996A CN109215996A (en) | 2019-01-15 |
| CN109215996B true CN109215996B (en) | 2024-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811118506.7A Active CN109215996B (en) | 2018-09-19 | 2018-09-19 | Ground isolation energy supply transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN109215996B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337506A (en) * | 2014-08-07 | 2016-02-17 | 南京南瑞继保电气有限公司 | Energy supply device from low voltage to high voltage |
| CN106299579A (en) * | 2016-10-21 | 2017-01-04 | 西安电子工程研究所 | Linear type switch arrays microwave oscillator |
| CN208706425U (en) * | 2018-09-19 | 2019-04-05 | 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1853764A (en) * | 1929-03-27 | 1932-04-12 | Koch & Sterzel Ag | High potential measuring transformer |
| US4607211A (en) * | 1984-12-07 | 1986-08-19 | General Electric Company | Method of correcting inaccurate instrumental potential transformer ratio |
| CN101950926A (en) * | 2010-07-22 | 2011-01-19 | 西北核技术研究所 | High-voltage multi-gap series gas spark switch |
| US10342107B2 (en) * | 2015-11-12 | 2019-07-02 | Kimtron, Inc. | Cascaded filament transformer within a resistive shroud |
| CN107579593B (en) * | 2017-09-22 | 2019-12-10 | 许继电气股份有限公司 | Energy supply system of high-voltage direct-current circuit breaker |
-
2018
- 2018-09-19 CN CN201811118506.7A patent/CN109215996B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337506A (en) * | 2014-08-07 | 2016-02-17 | 南京南瑞继保电气有限公司 | Energy supply device from low voltage to high voltage |
| CN106299579A (en) * | 2016-10-21 | 2017-01-04 | 西安电子工程研究所 | Linear type switch arrays microwave oscillator |
| CN208706425U (en) * | 2018-09-19 | 2019-04-05 | 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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| Publication number | Publication date |
|---|---|
| CN109215996A (en) | 2019-01-15 |
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