CN202957109U - Power transformer - Google Patents
Power transformer Download PDFInfo
- Publication number
- CN202957109U CN202957109U CN 201220592059 CN201220592059U CN202957109U CN 202957109 U CN202957109 U CN 202957109U CN 201220592059 CN201220592059 CN 201220592059 CN 201220592059 U CN201220592059 U CN 201220592059U CN 202957109 U CN202957109 U CN 202957109U
- Authority
- CN
- China
- Prior art keywords
- power transformer
- oil
- iron yoke
- transformer
- core limb
- 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.)
- Expired - Fee Related
Links
- 238000004804 winding Methods 0.000 claims abstract description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000741 silica gel Substances 0.000 claims abstract description 8
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 239000002775 capsule Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000002274 desiccant Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 4
- 235000015927 pasta Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
Provided is a power transformer. The core of the power transformer is composed of a low-voltage winding (1) and a high-voltage winding (2) in a group mode, and meanwhile the power transformer further comprises an iron yoke and a core limb (3), wherein the iron yoke is specifically divided into an upper iron yoke (4) and a lower iron yoke (5). The upper iron yoke (4) and the lower iron yoke (5) are connected through the core limb (3) to form a frame type structure. The low-voltage winding (1) and the high-voltage winding (2) are wound on the core limb (3). The low-voltage winding (1), the high-voltage winding (2), the iron yoke and the core limb (3) are all arranged in a barrel type transformer shell body (7) which is filled with transformer oil. Oil conservator capsule type oil conservators (7) are installed on the top of the power transformer. The power transformer is characterized in that each oil conservator (7) is communicated with a dryer (8) through the top of the dryer (8) through a pipe, wherein silica gel is contained inside the dryer (8) and is used as drying agents. The power transformer has the advantages of being capable of effectively reducing defects and faults inside, long in service life, high in reliability, and good in maintainability.
Description
Technical field
The utility model relates to structure of power transformer design and applied technical field, and a kind of power transformer is provided especially.
Background technology
Transformer is a kind of static electrical equipment, and it converts a kind of AC energy of electric pressure to the AC energy of the another kind of electric pressure of same frequency by the electromagnetic induction between coil.The kind of transformer is a lot, can classify by differences such as its purposes, structure, the number of phases, the types of cooling.
Transformer is in operation, and along with the variation of oil temperature, the volume of oil can expand and shrink, in order to reduce oil and the contact area of outside air, reduces that transformer makes moist and the probability of oxidation, usually at a transformer top installation oil conservator (being commonly called as conservator).But its technique effect is still comparatively limited, in urgent need to be improved.People wish to obtain a kind of people and urgently wish to obtain the good power transformer of a kind of technique effect, especially mainly are applicable to the power transformer of 110kV job requirement.
The utility model content
The purpose of this utility model is to provide the good power transformer of a kind of technique effect, especially mainly is applicable to the power transformer of 110kV job requirement.
The utility model provides a kind of power transformer, and its core is made of the low pressure winding 1 that is arranged in groups and high pressure winding 2, also includes simultaneously iron yoke and core limb 3; Wherein the iron yoke has and specifically is divided into upper yoke 4 and lower yoke 5, and upper yoke 4 and lower yoke 5 connect and compose tower structure by core limb 3, and low pressure winding 1 and high pressure winding 2 are wound on core limb 3; Above-mentioned a few part all is arranged in the bucket formula transformer shell 6 that transformer oil is housed; Housing 6 is bucket formula structure, and the conservator 7 that is provided with the conservator capsule-type is installed on the top of described power transformer; It is characterized in that: make oil deteriorated in order to make moisture can not enter conservator, be communicated with an in-built silica gel from top as the drier 8 of drier by a pipe on conservator 7, drier 8 is commonly called as respirator, silica gel has very strong suction-operated to moisture in air, it is blue that drying regime is, and the saturated rear pulverize of the moisture absorption is red.The silica gel of the moisture absorption can be regenerated.
Also be provided with strong oil circulation water-cooling device on described power transformer; It specifically is made of the oil pump that is communicated with housing 6 interior hydraulic fluid chambers and the cooler that is arranged on housing 6 outsides.Be characterized in that cooling capacity is large, relatively high but cooling water requires, otherwise easily result in blockage; During operation, require the hydraulic pressure must be lower than oil pressure.
Special supplementary notes:
Strong oil cooled pasta temperature rise is lower, can not judge winding temperature rise with oil surface temperature.Especially strong profit is cold, and winding temperature rise is during near prescribed limits, and the pasta temperature rise is very low.
Also should prevent the Oil flow discharge phenomenon when adopting strong oil cooling but.When oil circuit designs in winding, should prevent the turbulent flow of oil, limit oily Flow Velocity restriction pump speed, select the oil of suitable resistivity, the insulating part surface is smooth, should have enough volumes to make oil discharge electric charge on core limb 3.Prevent that oil flow electrification from developing into Oil flow discharge.Can start to one by one the cooler number that should drop into when starting cooler.
Should notice when selecting high capacity chiller that oily stream can not short circuit, make cooled oil can enter winding.
The lead-out wire of Transformer Winding must pass through insulating sleeve outside fuel tank internal is guided to case the time, making lead-in wire and fuel tank insulation.
Advantage of the present utility model: can effectively reduce transformer internal flaw, fault, the long service life of described power transformer, reliability is high, and is maintainable good.
Description of drawings
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is the structure of power transformer simplified schematic diagram.
Embodiment
Embodiment 1
A kind of power transformer, its core is made of the low pressure winding 1 that is arranged in groups and high pressure winding 2, also includes simultaneously iron yoke and core limb 3; Wherein the iron yoke has and specifically is divided into upper yoke 4 and lower yoke 5, and upper yoke 4 and lower yoke 5 connect and compose tower structure by core limb 3, and low pressure winding 1 and high pressure winding 2 are wound on core limb 3; Above-mentioned a few part all is arranged in the bucket formula transformer shell 6 that transformer oil is housed; Housing 6 is bucket formula structure, and the conservator 7 that is provided with the conservator capsule-type is installed on the top of described power transformer; Key point is: make oil deteriorated in order to make moisture can not enter conservator, be communicated with an in-built silica gel from top as the drier 8 of drier by a pipe on conservator 7, drier 8 is commonly called as respirator, silica gel has very strong suction-operated to moisture in air, it is blue that drying regime is, and the saturated rear pulverize of the moisture absorption is red.The silica gel of the moisture absorption can be regenerated.
Also be provided with strong oil circulation water-cooling device on described power transformer; It specifically is made of the oil pump that is communicated with housing 6 interior hydraulic fluid chambers and the cooler that is arranged on housing 6 outsides.Be characterized in that cooling capacity is large, relatively high but cooling water requires, otherwise easily result in blockage; During operation, require the hydraulic pressure must be lower than oil pressure.
Special supplementary notes:
Strong oil cooled pasta temperature rise is lower, can not judge winding temperature rise with oil surface temperature.Especially strong profit is cold, and winding temperature rise is during near prescribed limits, and the pasta temperature rise is very low.
Also should prevent the Oil flow discharge phenomenon when adopting strong oil cooling but.When oil circuit designs in winding, should prevent the turbulent flow of oil, limit oily Flow Velocity restriction pump speed, select the oil of suitable resistivity, the insulating part surface is smooth, should have enough volumes to make oil discharge electric charge on core limb 3.Prevent that oil flow electrification from developing into Oil flow discharge.Can start to one by one the cooler number that should drop into when starting cooler.
Should notice when selecting high capacity chiller that oily stream can not short circuit, make cooled oil can enter winding.
The lead-out wire of Transformer Winding must pass through insulating sleeve outside fuel tank internal is guided to case the time, making lead-in wire and fuel tank insulation.
The advantage of the present embodiment: can effectively reduce transformer internal flaw, fault, the long service life of described power transformer, reliability is high, and is maintainable good.
Claims (3)
1. power transformer, its core is made of the low pressure winding (1) that is arranged in groups and high pressure winding (2), also includes simultaneously iron yoke and core limb (3); Wherein the iron yoke has and specifically is divided into upper yoke (4) and lower yoke (5), and upper yoke (4) and lower yoke (5) connect and compose tower structure by core limb (3), and low pressure winding (1) and high pressure winding (2) are wound on core limb (3); Above-mentioned a few part all is arranged in the housing (6) that transformer oil is housed, and housing (6) is bucket formula structure, and the conservator (7) that is provided with the conservator capsule-type is installed on the top of described power transformer; It is characterized in that: conservator (7) is upper is being communicated with an in-built silica gel as the drier (8) of drier by a pipe from top.
2. according to the described power transformer of claim 1, it is characterized in that: also be provided with strong oil circulation water-cooling device on described power transformer; It specifically is made of the oil pump that is communicated with the interior hydraulic fluid chamber of housing (6) cooler outside with being arranged on housing (6).
3. according to the described power transformer of claim 1 or 2, it is characterized in that: the housing in described power transformer (6) is the full seal type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592059 CN202957109U (en) | 2012-11-11 | 2012-11-11 | Power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592059 CN202957109U (en) | 2012-11-11 | 2012-11-11 | Power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957109U true CN202957109U (en) | 2013-05-29 |
Family
ID=48462668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220592059 Expired - Fee Related CN202957109U (en) | 2012-11-11 | 2012-11-11 | Power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202957109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945730A (en) * | 2012-11-11 | 2013-02-27 | 国家电网公司 | Power transformer |
| CN105374517A (en) * | 2015-11-25 | 2016-03-02 | 国网河南社旗县供电公司 | Respirator structure for transformer tank |
-
2012
- 2012-11-11 CN CN 201220592059 patent/CN202957109U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945730A (en) * | 2012-11-11 | 2013-02-27 | 国家电网公司 | Power transformer |
| CN105374517A (en) * | 2015-11-25 | 2016-03-02 | 国网河南社旗县供电公司 | Respirator structure for transformer tank |
| CN105374517B (en) * | 2015-11-25 | 2017-07-14 | 国网河南社旗县供电公司 | A kind of oil tank of transformer respiratory organ structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103390485B (en) | A kind of strong cold transformer of liquid nitrogen and refrigerating method thereof | |
| CN105513763B (en) | Transformer Cooling loop construction | |
| CN105790485A (en) | Motor housing cooling structure for electric car | |
| CN107424758B (en) | Energy-saving oil immersed transformer | |
| CN202957109U (en) | Power transformer | |
| CN205428646U (en) | Oil -immersed transformer | |
| CN104157434B (en) | 220kV electric pressure gas-insulated transformer | |
| CN205542294U (en) | Water -cooling dry -type testing transformer device | |
| CN203950642U (en) | Oil-filled transformer | |
| CN203377060U (en) | Liquid nitrogen severe-cold transformer | |
| CN205645447U (en) | Testing transformer with cooling coil | |
| CN105632711B (en) | Extraordinary voltage conversion device | |
| CN205645471U (en) | Coil heat abstractor of transformer | |
| CN102592785A (en) | Cooling device for high voltage parallel compensation reactor windings | |
| CN103117156A (en) | Special-structure epoxy resin encapsulated dry-type transformer | |
| CN204537803U (en) | With SF 6and N 2mist is the gas-insulated transformer of dielectric | |
| CN102945730A (en) | Power transformer | |
| CN105761904B (en) | A kind of transformer with cooling structure | |
| CN103208349A (en) | Winding water-cooling gas insulating transformer | |
| CN210984466U (en) | Cooling structure of non-encapsulated dry-type transformer | |
| CN204303515U (en) | With the dry type phase-shifting rectifier transformer of function of shielding insulating cylinder | |
| CN210325463U (en) | Transformer for station | |
| CN204360870U (en) | A kind of Novel reactor | |
| CN205542295U (en) | Oily formula testing transformer with cooling structure | |
| CN103433129B (en) | Low-power self-loopa oil cooling tramp iron separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20201111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |