CN106935375A - A kind of SF6 gas-insulated transformer - Google Patents
A kind of SF6 gas-insulated transformer Download PDFInfo
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- CN106935375A CN106935375A CN201510995621.2A CN201510995621A CN106935375A CN 106935375 A CN106935375 A CN 106935375A CN 201510995621 A CN201510995621 A CN 201510995621A CN 106935375 A CN106935375 A CN 106935375A
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- iron core
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- 229910018503 SF6 Inorganic materials 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims abstract description 3
- WRQGPGZATPOHHX-UHFFFAOYSA-N ethyl 2-oxohexanoate Chemical compound CCCCC(=O)C(=O)OCC WRQGPGZATPOHHX-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 38
- 239000000178 monomer Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000002826 coolant Substances 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract description 2
- 238000010304 firing Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 62
- 230000009466 transformation Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/20—Cooling by special gases or non-ambient air
-
- 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
- H01F27/025—Constructional details relating to cooling
-
- 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
- H01F27/24—Magnetic cores
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention provides a kind of SF6 gas-insulated transformer, including：Iron core, is wrapped in low-voltage coil on the iron core, is sleeved on the high-tension coil outside the low-voltage coil；The iron core, the low-voltage coil and the high-tension coil are carried, and it is internal filled with cooling dielectric sulfur hexafluoride (SF6) gas hermetically sealed gas tank.The present invention provide SF6 gas-insulated transformer using sulfur hexafluoride gas as insulate and cooling medium, it is ensured that the excellent insulating properties of transformer and firing and explosion prevention.
Description
Technical field
The present invention relates to transformer technology field, and in particular to a kind of SF6 gas-insulated transformer.
Background technology
At present, 10kV grades of traditional structure oil immersion-type distribution transformer has serviced power system for many years, parametric
The requirement in market can have been lagged behind, meanwhile, with the development of society, distribution system is for power transformation safety
It is required that also increasingly stricter, traditional oil-filled transformer is occurring as a result of transformer oil
It may happen that the dangerous situation catch fire, explode etc., jeopardizes society and public security during failure.
Therefore, a kind of nonflammable power transformer of new type of safe of research and development is needed badly.
The content of the invention
In view of this, the present invention provides a kind of SF6 gas-insulated transformer, using sulfur hexafluoride gas
Body is used as insulation and cooling medium, it is ensured that the excellent insulating properties of transformer and firing and explosion prevention.
To achieve the above object, the present invention provides following technical scheme：
A kind of SF6 gas-insulated transformer, including：
Iron core；
It is wrapped in the low-voltage coil on the iron core；
It is sleeved on the high-tension coil outside the low-voltage coil；
The iron core, the low-voltage coil and the high-tension coil are carried, and it is internal filled with cooling insulation
Medium sulfur hexafluoride (SF6) gas hermetically sealed gas tank.
Preferably, the iron core is synthesized by three physical dimension identical coiled iron core monomer frame splicings,
And with symmetrical triangle stereochemical structure；The iron circuit is full symmetric.
Preferably, the gas tank cross section is axisymmetric hexagonal structure.
Preferably, also include：
The upper clamping piece and lower clamping piece of the fixation iron core：
It is arranged on the coil pressure plate at the top of the low-voltage coil and the high-tension coil；
The low-voltage coil and the high-tension coil bottom are arranged on, it is corresponding vertically with the coil pressure plate
Coil supporting plate；
The low-voltage coil is fixed on institute by the coil pressure plate with the coil supporting plate with the high-tension coil
State between upper clamping piece and the lower clamping piece.
Preferably, also include：
Low-voltage insulation cylinder between the iron core and the low-voltage coil；
It is sleeved on the High-Voltage Insulation cylinder between the low-voltage coil and the high-tension coil；
The outer screen of high-tension coil on the outside of the high-tension coil.
Preferably, also include：
One end is arranged on the low-voltage insulation cylinder, and the other end is inserted in the low-voltage coil in the low-voltage coil
Interior guiding；
One end is arranged on the High-Voltage Insulation cylinder, and the other end is inserted in the low-voltage coil in the low-voltage coil
Outer guiding.
Preferably, also include：
One end is arranged on the High-Voltage Insulation cylinder, and the other end is inserted in the high-tension coil in the high-tension coil
Interior guiding；
One end is arranged on the outer screen of the high-tension coil, and the other end is inserted in the high pressure in the high-tension coil
It is oriented to outside coil.
Preferably, also include：Installed in the gas tank case along upper multiple gas radiators.
Preferably, also include：
On the case lid of the gas tank, the burst pressure relay that afterbody gos deep into inside the gas tank；
High-tension insulating bushing and low-voltage insulation sleeve pipe on the gas tank case lid；
Off circuit tap changer on the gas tank case lid.
Preferably, also include：
Terminal box on the gas tank casing side；
Thermometer on the gas tank case lid.
Relative to prior art, the beneficial effects of the invention are as follows：
The present invention sets iron core in gas tank, and low-voltage coil is wound on iron core, is set with low-voltage coil
High-tension coil, it is ensured that the normal operation of transformer；Simultaneously by iron core, low-voltage coil and high-tension coil are equal
It is arranged in gas tank, filling sulfur hexafluoride gas in gas tank are used as transformation by using sulfur hexafluoride gas
Device insulate and cooling medium, it is ensured that the situation that will not be burnt when transformer breaks down or exploded,
Personal security is ensure that, there is unique advantage compared with oil-filled transformer in terms of security performance.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to reality
The accompanying drawing to be used needed for example or description of the prior art is applied to be briefly described, it should be apparent that, below
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation of SF6 gas-insulated transformer that Fig. 1 is provided for the present invention；
The structural representation of iron core in a kind of SF6 gas-insulated transformer that Fig. 2 is provided for the present invention；
The top view of gas tank in a kind of SF6 gas-insulated transformer that Fig. 3 is provided for the present invention；
The structural representation inside a kind of SF6 gas-insulated transformer gas tank that Fig. 4 is provided for the present invention
Figure.
Specific embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is carried out clearly and completely
Description, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole realities
Apply example.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work
Under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
Fig. 1 is a kind of structural representation of the SF6 gas-insulated transformer for providing of the invention, and Fig. 2 is
The structural representation of iron core in a kind of SF6 gas-insulated transformer that the present invention is provided；Fig. 3 is this hair
The top view of gas tank in a kind of SF6 gas-insulated transformer of bright offer；Fig. 4 is provided for the present invention
A kind of structural representation inside SF6 gas-insulated transformer gas tank.
Please referring also to Fig. 1, Fig. 2, Fig. 3, Fig. 4, sulfur hexafluoride (SF6) gas that the present invention is provided is exhausted
Edge transformer can include following structure：
Iron core 1；Low-voltage coil 2；High-tension coil 3；Gas tank 4；
Wherein, low-voltage coil 2 is wound in the outside of iron core 1, high-tension coil 3 is sleeved on low-voltage coil 2,
Above structure is fully sealed packaging by gas tank 4, the filling sulfur hexafluoride gas in the gas tank 4, at the same by iron core 1,
Low-voltage coil 2, high-tension coil 3 are immersed in sulfur hexafluoride gas.Gas tank 4 is used and is welded all-sealed structure, with
Pressure container standard is manufactured, it is ensured that the sealing property of gas tank 4, transformer gas leakage rate well below
Related standard requirement.
Sulfur hexafluoride gas have good electric insulating quality and excellent arc extinction performance, and its electric strength is
2.5 times of nitrogen under same pressure, breakdown voltage is 2.5 times of air, and arc extinguishing ability is 100 times of air,
It is a kind of super-pressure insulating dielectric materials of new generation better than between air and oil.
Therefore, the present invention uses sulfur hexafluoride gas as transformer insulated and cooling medium, it is ensured that
The situation that transformer will not burn or explode when breaking down, it is ensured that personal security.
Fig. 2 is referred to, Fig. 2 shows the structural representation of iron core 1.Iron core 1 in the present invention is several by three
What size identical coiled iron core monomer frame splicing synthesis, and with symmetrical triangle stereochemical structure.Spell
Equilateral triangle stereochemical structure good stability after conjunction, iron core high mechanical strength, three-phase stress is consistent, and three
Phase magnetic circuit is full symmetric, strengthens device body anti-short circuit capability, and magnetic resistance greatly reduces, exciting current, zero load
Loss is significantly lowered.Iron core three-phase magnetic circuit links up, most short compared with laminated core structure and plane reeling iron core magnetic circuit,
Ensure that Three-Phase Transformer is powered balance.
Fig. 3 is referred to, Fig. 3 shows the overlooking structure figure of gas tank 4.In the present embodiment, gas tank 4 is weldering
Dead all-sealed structure, the cross section of gas tank 4 is axisymmetric hexagon, including three symmetrical sides long and three
The symmetrical short side of bar.Wherein three symmetrical long corresponding in three with iron core respectively, and three short sides are used
In connection transition.
Fig. 4 is referred to, Fig. 4 is gas tank internal structure schematic diagram.Also include with lower component inside gas tank 4：
Upper clamping piece 5, lower clamping piece 6, coil pressure plate 7, coil supporting plate 8, low-voltage insulation cylinder 9, High-Voltage Insulation cylinder
10, high-tension coil outer screen 11 is oriented to 12 in low-voltage coil, 13, high-tension coil are oriented to outside low-voltage coil
It is interior to be oriented to 14, it is oriented to 15 outside high-tension coil, gas radiator 16, burst pressure relay 17, high pressure is exhausted
Edge sleeve pipe 18, low-voltage insulation sleeve pipe 19, off circuit tap changer 20, terminal box 21, thermometer 22.
From upper and lower both direction be fixed iron core 1 with lower clamping piece 6 by upper clamping piece 5, in the bottom of upper clamping piece 5
Coil pressure plate 7 is set, and coil pressure plate 7 is located at the top of low-voltage coil 2 and high-tension coil 3.It is corresponding, line
Circle supporting plate 8 is arranged on the bottom of low-voltage coil 2 and high-tension coil 3, corresponding about 7 with coil pressure plate.Pass through
Coil pressure plate 7 can compress admittedly low-voltage coil 2 and high-tension coil 3 with coil supporting plate 8 from upper and lower both direction
It is fixed.Coil pressure plate 7 can be connected by fastener with coil supporting plate 8 with upper clamping piece and lower clamping piece.
In order to ensure the insulating properties between low-voltage coil 2 and iron core 1 and high-tension coil 3, in iron core 1 and low pressure
Low-voltage insulation cylinder 9 is set between coil 2, High-Voltage Insulation cylinder is set between low-voltage coil 2 and high-tension coil 3
10, in high-tension coil outermost, the outer screen 11 of high-tension coil is set.Low-voltage insulation cylinder is with High-Voltage Insulation cylinder
Can be made up of insulating paper, insulation of the achievable low-voltage coil of low-voltage insulation cylinder to iron core, High-Voltage Insulation cylinder can
Insulation of the high-tension coil for low-voltage coil is realized, the outer screen of high-tension coil can improve high-tension coil outside
Dielectric strength.
In order to ensure that low-voltage coil is distributed rapidly with the heat in high-tension coil, it is lithium that the present invention is provided
Sulphur gas-insulated transformer also has radiator structure.
Specifically, being oriented to 12 in many low-voltage coils of lateral connection on low-voltage insulation cylinder 9.In low-voltage coil
It is oriented to 12 one end to be connected with low-voltage insulation cylinder 9, the other end is inserted in inside low-voltage coil 2, many low-voltage coils
Interior guiding is parallel to each other.13 are oriented to outside lateral connection low-voltage coil on 10 on High-Voltage Insulation cylinder.Low-voltage line
Outer 13 one end that are oriented to of circle are connected with High-Voltage Insulation cylinder 10, and the other end is inserted in inside low-voltage coil 2, many low pressure
It is oriented to outside coil and is parallel to each other.
14, high-voltage line are oriented in many high-tension coils being parallel to each other of lateral connection on High-Voltage Insulation cylinder 10
It is oriented to 14 one end in circle to be inserted on High-Voltage Insulation cylinder 10, the other end is inserted in inside high-tension coil 3；In high-voltage line
15 are oriented to outside many high-tension coils being parallel to each other of lateral connection on the outer screen 11 of circle, are oriented to outside high-tension coil
15 one end are inserted on the outer screen 11 of high-tension coil, and the other end is inserted in inside high-tension coil 3.Led in high-tension coil
The heat that high-tension coil is produced can be distributed to guiding outside high-tension coil.
It is corresponding, the outside of gas tank 4 is provided with gas radiator 16, the heat that gas tank 4 itself can be produced
Amount is distributed.
The radiation processes of the SF6 gas-insulated transformer that the present invention is provided are as follows：
It is oriented in low-voltage coil and is contacted with low-voltage insulation cylinder, is oriented to outside low-voltage coil and is contacted with High-Voltage Insulation cylinder,
While be oriented to outside the interior guiding of low-voltage coil and low-voltage coil being inserted into inside low-voltage coil.The structure can be with
Gas is oriented to along low-voltage coil in low-voltage coil, lead outside low-voltage coil, low-voltage insulation cylinder
And into indentation flowing between High-Voltage Insulation cylinder, so as to the heat in low-voltage coil preferably is passed through into gas
Bring out, improve the heat-sinking capability of low-voltage coil；
Similarly, it is oriented in high-tension coil and is contacted with High-Voltage Insulation cylinder, is oriented to and high-tension coil outside high-tension coil
Outer screen contact, while be oriented to outside the interior guiding of high-tension coil and high-tension coil being inserted in high-tension coil.Should
Structure can be such that gas is flowed into indentation in high-tension coil, improve the heat-sinking capability of high-tension coil.
The heat that low-voltage coil and high-tension coil are produced finally raises gas temperature in gas tank, now gas tank
Interior gas circulating is：The cold air of gas tank bottom by low-voltage coil and high-tension coil, in low-voltage line
Heat is absorbed at circle and high-tension coil, gas temperature rises；The gas of heat is from low-voltage coil and high-tension coil
Top discharges；Gas temperature at the top of gas tank is higher, and the bottom of gas radiator is arranged in gas tank,
Top high-temperature gas can be radiated by gas radiator；Cooling gas after radiating are delivered to gas again
Bottom portion, into subsequent cycle.
Burst pressure relay 17 is also equipped with the case lid of gas tank 4, the end of burst pressure relay 17 is consolidated
It is scheduled on case lid, afterbody is inserted into the inside of gas tank 4.Transformer is internal when breaking down in the process of running
The trip signal of correlation can be sent to user by burst pressure relay.Also set up on the case lid of gas tank 4
There are the high-tension insulating bushing 18 and low-voltage insulation sleeve pipe 19 being connected with user terminal.Off circuit tap changer 20 is pacified
On case lid, the regulation to transformer voltage is realized.Terminal box 21 is arranged on gas tank outside, and realizing will
Transformer secondary signal is collected, to facilitate the unified connection of user's line.Thermometer 22 is realized to transformation
The monitoring of temperature in device running, sends alarm and the trip signal of correlation when abnormal
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use
The present invention.Various modifications to these embodiments will be for those skilled in the art aobvious and easy
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a kind of SF6 gas-insulated transformer, it is characterised in that including：
Iron core；
It is wrapped in the low-voltage coil on the iron core；
It is sleeved on the high-tension coil outside the low-voltage coil；
The iron core, the low-voltage coil and the high-tension coil are carried, and it is internal filled with cooling insulation
Medium sulfur hexafluoride (SF6) gas hermetically sealed gas tank.
2. SF6 gas-insulated transformer according to claim 1, it is characterised in that described
Iron core is synthesized by three physical dimension identical coiled iron core monomer frame splicings, and with symmetrical triangle
Stereochemical structure；The iron circuit is full symmetric.
3. SF6 gas-insulated transformer according to claim 2, it is characterised in that described
Gas tank cross section is axisymmetric hexagonal structure.
4. SF6 gas-insulated transformer according to claim 3, it is characterised in that also wrap
Include：
The upper clamping piece and lower clamping piece of the fixation iron core；
It is arranged on the coil pressure plate at the top of the low-voltage coil and the high-tension coil；
The low-voltage coil and the high-tension coil bottom are arranged on, it is corresponding vertically with the coil pressure plate
Coil supporting plate；
The low-voltage coil is fixed on institute by the coil pressure plate with the coil supporting plate with the high-tension coil
State between upper clamping piece and the lower clamping piece.
5. SF6 gas-insulated transformer according to claim 4, it is characterised in that also wrap
Include：
Low-voltage insulation cylinder between the iron core and the low-voltage coil；
It is sleeved on the High-Voltage Insulation cylinder between the low-voltage coil and the high-tension coil；
The outer screen of high-tension coil on the outside of the high-tension coil.
6. SF6 gas-insulated transformer according to claim 5, it is characterised in that also wrap
Include：
One end is arranged on the low-voltage insulation cylinder, and the other end is inserted in the low-voltage coil in the low-voltage coil
Interior guiding；
One end is arranged on the High-Voltage Insulation cylinder, and the other end is inserted in the low-voltage coil in the low-voltage coil
Outer guiding.
7. SF6 gas-insulated transformer according to claim 6, it is characterised in that also wrap
Include：
One end is arranged on the High-Voltage Insulation cylinder, and the other end is inserted in the high-tension coil in the high-tension coil
Interior guiding；
One end is arranged on the outer screen of the high-tension coil, and the other end is inserted in the high pressure in the high-tension coil
It is oriented to outside coil.
8. SF6 gas-insulated transformer according to claim 1, it is characterised in that
Also include：Case installed in the gas tank is along upper multiple gas radiators.
9. SF6 gas-insulated transformer according to claim 1, it is characterised in that also wrap
Include：
On the case lid of the gas tank, the burst pressure relay that afterbody gos deep into inside the gas tank；
High-tension insulating bushing and low-voltage insulation sleeve pipe on the gas tank case lid；
Off circuit tap changer on the gas tank case lid.
10. SF6 gas-insulated transformer according to claim 1, it is characterised in that also
Including：
Terminal box on the gas tank casing side；
Thermometer on the gas tank case lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995621.2A CN106935375A (en) | 2015-12-29 | 2015-12-29 | A kind of SF6 gas-insulated transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995621.2A CN106935375A (en) | 2015-12-29 | 2015-12-29 | A kind of SF6 gas-insulated transformer |
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| Publication Number | Publication Date |
|---|---|
| CN106935375A true CN106935375A (en) | 2017-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510995621.2A Pending CN106935375A (en) | 2015-12-29 | 2015-12-29 | A kind of SF6 gas-insulated transformer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108305768A (en) * | 2018-03-14 | 2018-07-20 | 珠海市新化磁性材料有限公司 | A kind of high voltage isolation transformer and preparation method thereof |
| CN109360721A (en) * | 2018-11-14 | 2019-02-19 | 保定保菱变压器有限公司 | A kind of structure of transformer body of low capacity high voltage |
| CN110211769A (en) * | 2019-06-18 | 2019-09-06 | 四川智翔电器有限公司 | A kind of sulfur hexafluoride phase-shifting transformer |
| CN110797170A (en) * | 2018-08-01 | 2020-02-14 | 特变电工衡阳变压器有限公司 | Converter transformer |
| CN112388140A (en) * | 2020-11-09 | 2021-02-23 | 保定保菱变压器有限公司 | Be applied to SF6Welding method for position correction of full-entanglement winding of gas-insulated transformer |
| CN113611507A (en) * | 2021-09-03 | 2021-11-05 | 国网陕西省电力公司延安供电公司 | Mixed gas insulated transformer |
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| CN101295578A (en) * | 2008-04-30 | 2008-10-29 | 保定天威集团有限公司 | Sulfur hexafluoride gas insulating transformer |
| CN201478079U (en) * | 2009-07-31 | 2010-05-19 | 杭州钱江电气集团股份有限公司 | Amorphous alloy distribution transformer and inner core thereof |
| CN202796349U (en) * | 2012-08-15 | 2013-03-13 | 南宁南特变压器制造有限公司 | Insulation structure of body of amorphous transformer |
| CN203746626U (en) * | 2013-12-30 | 2014-07-30 | 山东泰开互感器有限公司 | Completely-sealed gas insulation type partial-discharge-free testing transformer |
| CN104078214A (en) * | 2014-07-11 | 2014-10-01 | 江苏华鹏变压器有限公司 | Overall sleeved structure of transformer body |
| CN104157434A (en) * | 2014-08-22 | 2014-11-19 | 深圳供电局有限公司 | 220kV voltage class gas-insulated transformer |
| CN104752030A (en) * | 2015-03-10 | 2015-07-01 | 海鸿电气有限公司 | Oil immersion type three-dimensional triangular rolled iron core high-overload transformer |
| CN205248064U (en) * | 2015-12-29 | 2016-05-18 | 保定保菱变压器有限公司 | Sulfur hexafluoride gas -insulated transformer |
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| CN108305768A (en) * | 2018-03-14 | 2018-07-20 | 珠海市新化磁性材料有限公司 | A kind of high voltage isolation transformer and preparation method thereof |
| CN110797170A (en) * | 2018-08-01 | 2020-02-14 | 特变电工衡阳变压器有限公司 | Converter transformer |
| CN109360721A (en) * | 2018-11-14 | 2019-02-19 | 保定保菱变压器有限公司 | A kind of structure of transformer body of low capacity high voltage |
| CN110211769A (en) * | 2019-06-18 | 2019-09-06 | 四川智翔电器有限公司 | A kind of sulfur hexafluoride phase-shifting transformer |
| CN110211769B (en) * | 2019-06-18 | 2024-05-31 | 四川智翔电器有限公司 | Sulfur hexafluoride phase-shifting transformer |
| CN112388140A (en) * | 2020-11-09 | 2021-02-23 | 保定保菱变压器有限公司 | Be applied to SF6Welding method for position correction of full-entanglement winding of gas-insulated transformer |
| CN113611507A (en) * | 2021-09-03 | 2021-11-05 | 国网陕西省电力公司延安供电公司 | Mixed gas insulated transformer |
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