CN105513751A - Dry type transformer - Google Patents
Dry type transformer Download PDFInfo
- Publication number
- CN105513751A CN105513751A CN201610033171.3A CN201610033171A CN105513751A CN 105513751 A CN105513751 A CN 105513751A CN 201610033171 A CN201610033171 A CN 201610033171A CN 105513751 A CN105513751 A CN 105513751A
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- CN
- China
- Prior art keywords
- transformer
- fagging
- low
- dry
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- H01F27/085—Cooling by ambient air
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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
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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
- H01F27/325—Coil bobbins
-
- 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
- H01F27/327—Encapsulating or impregnating
-
- 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
- H01F27/402—Association of measuring or protective means
-
- 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
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to the technical field of transformers, in particular to a dry type transformer. The dry type transformer comprises a transformer body. The transformer body comprises an air cooling system and an iron core assembly. The air cooling system is arranged at the bottom of the transformer and provides a cooling medium for the transformer. The iron core assembly comprises a high-voltage coil, a low-voltage coil and a fixing stick. A high-voltage lead is led out of the high-voltage coil and is connected with a high-voltage insulator. A low-voltage lead is led out of the low-voltage coil and is connected with a low-voltage insulator. A transformer body insulating structure is arranged on the transformer body. By means of the dry type transformer, by increasing flow of air, temperature rise of the coils is effectively reduced, heat generated in the running process of the transformer is brought out of the transformer in time, and the aim of cooling is achieved; a temperature alarm device and the insulating structure are added, and therefore damage caused by temperature rise to the transformer is reduced.
Description
Technical field
The present invention relates to transformer technology field, particularly relate to a kind of dry-type transformer.
Background technology
Dry-type transformer relies on cross-ventilation to cool, and is generally used for localized lighting, electronic circuit.The isallobaric device of plant equipment, in electric power system, general steam turbine transformer, boiler transformer, ash disposal transformer, dust removing transformer, desulfurization transformer etc. are all dry-type transformers, and no-load voltage ratio is 6000V/400V and 10KV/400V, for the load with rated voltage 380V.Briefly dry-type transformer just refers to that iron core and winding are not immersed in the transformer in insulating oil.Wherein, dry-type transformer, be rely on cross-ventilation to cool, iron core and winding are not immersed in insulating oil.The safe operation of dry-type transformer and useful life, depend on that Transformer Winding insulate to a great extent safe and reliable, winding temperature exceedes insulation tolerable temperature makes insulation breakdown, be the one of the main reasons causing transformer cisco unity malfunction, and traditional dry-type transformer lacks detection and warning device, and side reflect, insulation processing between high-low pressure is bad, to directly affect the security of operation of transformer, affect the useful life of transformer, affect the power quality of user.
Summary of the invention
In order to solve above technical problem, object is to solve that insulation effect in background technology is bad, the problem of alarm free function, is below concrete technical scheme:
A kind of dry-type transformer, comprise transformer body, wherein transformer body comprises air cooling system and iron core assembly, wherein air cooling system is arranged at transformer bottom, for transformer provides coolant, wherein iron core assembly comprises high-tension coil, low-voltage coil and hold-down bars, wherein high-tension coil is drawn high-voltage connection and is connected with high-tension insulator, low-voltage coil is drawn low-voltage lead and be connected with low tension insulator; Described transformer is also provided with device body insulation structure with it.
Further, upper part of transformer body is provided with the resistance thermometer for detecting resistance temperature, and wherein resistance thermometer comprises temperature sensor and temperature display controller.
Further, high-tension coil, low-voltage coil are that epoxy resin adds quartz sand filling cast, glass fiber reinforced epoxy resin cast, multiply glass fiber epoxy resin-impregnated wound form.
Further, the insulation of device body comprises insulating cylinder, and be wherein provided with fagging in insulating cylinder and regulate whole plate, wherein insulating cylinder top is provided with nail pressing, and bottom is provided with silicagel pad.
Further, insulation pressing comprises insulation pressing and lower insulation pressing, and wherein go up insulation pressing and be arranged on insulating cylinder top, nail pressing top, lower insulation pressing is arranged on the silicagel pad bottom of insulating cylinder bottom.
Further, fagging comprises the first fagging, the second fagging, the 3rd fagging, the 4th fagging, wherein the first fagging is arranged on low-voltage coil side, the second fagging is arranged between low-voltage coil and high-tension coil, 3rd fagging is arranged on high-tension coil side, and wherein the 3rd fagging opposite side is provided with the 4th fagging.
Further, air cooling system comprises blower rack and is arranged on the blower fan on blower rack.
Beneficial effect: dry-type transformer provided by the invention by increase air flowing, effectively reduce the temperature rise of coil and take the heat that transformer produces in running to transformer outside timely, reach the object of cooling, and reduce the injury of temperature increase to transformer itself by increasing temperature alarming device and arranging insulation system.
Accompanying drawing explanation
Fig. 1 is invention machine body structure schematic diagram front view;
Fig. 2 is machine body structure schematic diagram end view of the present invention;
Fig. 3 is device body insulation structure schematic diagram of the present invention;
Fig. 4 is high-pressure side of the present invention winding diagram;
Fig. 5 is low-pressure side winding diagram of the present invention;
Fig. 6 is air cooling system structural representation of the present invention;
Wherein: 1, transformer body 2, iron core assembly 3, air cooling system 4, resistance thermometer 5, device body insulation structure 6, high-tension coil 7, low-voltage coil 8, high-tension insulator 9, low tension insulator 31, blower fan 32, blower rack 51, first fagging 52, second fagging 53, the 3rd fagging 54, the 4th fagging 55, nail pressing 56, silicagel pad 57, upper insulation pressing 58, lower insulation pressing.
Embodiment
Below in conjunction with Figure of description, the invention will be further described.
Embodiment 1
A kind of dry-type transformer, comprise transformer body 1, wherein transformer body comprises air cooling system 3 and iron core assembly 2, wherein air cooling system 3 is arranged at transformer bottom, for transformer provides coolant, wherein iron core assembly comprises high-tension coil 6, low-voltage coil 7 and hold-down bars, wherein high-tension coil 6 is drawn high-voltage connection and is connected with high-tension insulator 8, low-voltage coil 7 is drawn low-voltage lead and be connected with low tension insulator 9; Described transformer body 1 is also provided with device body insulation structure 5, wherein, upper part of transformer body is provided with the resistance thermometer 4 for detecting resistance temperature, resistance thermometer comprises temperature sensor and temperature display controller, wherein, high-tension coil 6, low-voltage coil 7 fill cast, glass fiber reinforced epoxy resin cast, multiply glass fiber epoxy resin-impregnated wound form for epoxy resin adds quartz sand.
Embodiment 2
The insulation of device body comprises insulating cylinder, wherein be provided with fagging in insulating cylinder and regulate whole plate, wherein insulating cylinder top is provided with nail pressing 55, bottom is provided with silicagel pad 56, wherein insulation pressing comprises insulation pressing 57 and lower insulation pressing 58, wherein go up insulation pressing 57 and be arranged on insulating cylinder top, nail pressing 55 top, lower insulation pressing 58 is arranged on silicagel pad 56 bottom of insulating cylinder bottom, its middle supporting plate comprises the first fagging 51, second fagging 52, 3rd fagging 53, 4th fagging 54, wherein the first fagging 51 is arranged on low-voltage coil 7 side, second fagging 52 is arranged between low-voltage coil 7 and high-tension coil 6, 3rd fagging 53 is arranged on high-tension coil 6 side, wherein the 3rd fagging 53 opposite side is provided with the 4th fagging 54.
Embodiment 3
Air cooling system comprises blower rack and is arranged on the blower fan 31 on blower rack 32.
The present invention makes to carry out multi-level insulation processing between high-tension coil and low-voltage coil by device body insulation structure is increased fagging, makes insulation effect better; Can exercise supervision to the temperature of transformer by increasing temperature-detecting device and control, add the ability of process risk.
Claims (7)
1. a dry-type transformer, comprise transformer body, wherein transformer body comprises air cooling system and iron core assembly, it is characterized in that, described air cooling system is arranged at transformer bottom, and for transformer provides coolant, wherein iron core assembly comprises high-tension coil, low-voltage coil and hold-down bars, wherein high-tension coil is drawn high-voltage connection to be connected with high-tension insulator, low-voltage coil is drawn low-voltage lead and be connected with low tension insulator; Described transformer is also provided with device body insulation structure with it.
2. a kind of dry-type transformer according to claim 1, is characterized in that, described upper part of transformer body is provided with the resistance thermometer for detecting resistance temperature, and wherein resistance thermometer comprises temperature sensor and temperature display controller.
3. a kind of dry-type transformer according to claim 1, is characterized in that, described high-tension coil, low-voltage coil are that epoxy resin adds quartz sand filling cast, glass fiber reinforced epoxy resin cast, multiply glass fiber epoxy resin-impregnated wound form.
4. a kind of dry-type transformer according to claim 1, is characterized in that, described device body insulation comprises insulating cylinder, and be wherein provided with fagging in insulating cylinder and regulate whole plate, wherein insulating cylinder top is provided with nail pressing, and bottom is provided with silicagel pad.
5. a kind of dry-type transformer according to claim 1 or 4, it is characterized in that, described insulation pressing comprises insulation pressing and lower insulation pressing, and wherein go up insulation pressing and be arranged on insulating cylinder top, nail pressing top, lower insulation pressing is arranged on the silicagel pad bottom of insulating cylinder bottom.
6. a kind of dry-type transformer according to claim 4, it is characterized in that, described fagging comprises the first fagging, the second fagging, the 3rd fagging, the 4th fagging, wherein the first fagging is arranged on low-voltage coil side, the second fagging is arranged between low-voltage coil and high-tension coil, 3rd fagging is arranged on high-tension coil side, and wherein the 3rd fagging opposite side is provided with the 4th fagging.
7. a kind of dry-type transformer according to claim 1, is characterized in that, described air cooling system comprises blower rack and is arranged on the blower fan on blower rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610033171.3A CN105513751A (en) | 2016-01-19 | 2016-01-19 | Dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610033171.3A CN105513751A (en) | 2016-01-19 | 2016-01-19 | Dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105513751A true CN105513751A (en) | 2016-04-20 |
Family
ID=55721655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610033171.3A Pending CN105513751A (en) | 2016-01-19 | 2016-01-19 | Dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105513751A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914019A (en) * | 2016-05-30 | 2016-08-31 | 江苏国能合金科技有限公司 | 10-KV epoxy cast dry-type transformer |
| US20210241971A1 (en) * | 2018-04-20 | 2021-08-05 | Siemens Aktiengesellschaft | Sensformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01312810A (en) * | 1988-06-10 | 1989-12-18 | Toshiba Corp | Stationary induction apparatus |
| CN1758387A (en) * | 2005-10-17 | 2006-04-12 | 谭勇 | Offshore platform transformer |
| CN201036137Y (en) * | 2007-04-26 | 2008-03-12 | 南京大全变压器有限公司 | The adjustable structure of the cushion block under the transformer coil |
| CN101630582A (en) * | 2009-06-30 | 2010-01-20 | 江西大族电源科技有限公司 | Body insulation structure of dry-type transformer with three-dimensional rolled iron core and manufacturing process thereof |
| CN103971885A (en) * | 2014-04-25 | 2014-08-06 | 江苏天威变压器有限公司 | Dry type transformer |
| CN205487641U (en) * | 2016-01-19 | 2016-08-17 | 聊城昌佳变电设备有限公司 | Dry -type transformer |
-
2016
- 2016-01-19 CN CN201610033171.3A patent/CN105513751A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01312810A (en) * | 1988-06-10 | 1989-12-18 | Toshiba Corp | Stationary induction apparatus |
| CN1758387A (en) * | 2005-10-17 | 2006-04-12 | 谭勇 | Offshore platform transformer |
| CN201036137Y (en) * | 2007-04-26 | 2008-03-12 | 南京大全变压器有限公司 | The adjustable structure of the cushion block under the transformer coil |
| CN101630582A (en) * | 2009-06-30 | 2010-01-20 | 江西大族电源科技有限公司 | Body insulation structure of dry-type transformer with three-dimensional rolled iron core and manufacturing process thereof |
| CN103971885A (en) * | 2014-04-25 | 2014-08-06 | 江苏天威变压器有限公司 | Dry type transformer |
| CN205487641U (en) * | 2016-01-19 | 2016-08-17 | 聊城昌佳变电设备有限公司 | Dry -type transformer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914019A (en) * | 2016-05-30 | 2016-08-31 | 江苏国能合金科技有限公司 | 10-KV epoxy cast dry-type transformer |
| US20210241971A1 (en) * | 2018-04-20 | 2021-08-05 | Siemens Aktiengesellschaft | Sensformer |
| US12020856B2 (en) * | 2018-04-20 | 2024-06-25 | Siemens Energy Global GmbH & Co. KG | Sensformer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |
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| RJ01 | Rejection of invention patent application after publication |