CN102682957A - Oil-immersed transformer with automatic heating device - Google Patents
Oil-immersed transformer with automatic heating device Download PDFInfo
- Publication number
- CN102682957A CN102682957A CN2012101794521A CN201210179452A CN102682957A CN 102682957 A CN102682957 A CN 102682957A CN 2012101794521 A CN2012101794521 A CN 2012101794521A CN 201210179452 A CN201210179452 A CN 201210179452A CN 102682957 A CN102682957 A CN 102682957A
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- transformer
- heating
- oil
- heating device
- automatic
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 117
- 230000005855 radiation Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000005494 condensation Effects 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 3
- 238000010292 electrical insulation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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Abstract
The invention relates to a transformer, in particular to an oil-immersed transformer with an automatic heating device. Transformer oil serves as an electrical insulation medium of the transformer. When the air temperature is lower than a condensation point of the transformer oil, the transformer cannot be started, and the normal work of a power system is affected. The oil-immersed transformer comprises a transformer box, a transformer body arranged in the transformer box and the transformer oil injected into the transformer body and is characterized in that the oil-immersed transformer is further provided with the automatic heating device. The automatic heating device comprises heating boxes arranged at the bottom of the transformer box, heating elements located in the heating boxes and a first temperature controller controlling the work of the heating elements according to the oil temperature of the transformer box. A plurality of heating boxes arranged at intervals are arranged at the bottom of the transformer box, and the top faces of the heating boxes are tightly adhered to the bottom face of the transformer box. The oil-immersed transformer can heat the transformer oil when the temperature is lower than the condensation point of the transformer oil till the transformer oil is melted and the transformer can be started, thereby ensuring the normal operation of the power system.
Description
Technical field
The present invention relates to a kind of transformer.
Background technology
Oil-filled transformer is the indispensable equipment of electric power system.Transformer oil is as the electric insulation medium of transformer; Its performance directly influences the transformer security of operation, but along with the appearance of extreme weather in recent years, the situation that the lowest temperature is lower than the transformer oil condensation point has appearred in many areas; Transformer can't start, and influences the operate as normal of electric power system.
Summary of the invention
The technical problem that the present invention will solve and the technical assignment of proposition are that the prior art scheme is improved and improved; A kind of oil-filled transformer with automatic heating device is provided; To reach when temperature is low also normally starting transformer, guarantee the purpose that electric power system normally moves.For this reason, the present invention takes following technical scheme.
A kind of oil-filled transformer with automatic heating device; Comprise transformer tank, be located at the transformer body in the transformer tank, the transformer oil in the injection transformer casing; It is characterized in that: oil-filled transformer also is provided with automatic heating device; Described automatic heating device comprises the heating cabinet of being located at transformer tank bottom, the heating element that is arranged in heating cabinet and according to first temperature controller of transformer tank oil temperature control heating element work; The transformer tank bottom is provided with a plurality of spaced heating cabinets, and the end face of heating cabinet and the bottom surface of transformer tank are close to.The present technique scheme can heat to transformer oil when temperature is lower than the transformer oil solidifying point, melts and can starting transformer up to transformer oil, thereby guarantees the normal operation of electric power system.
As the further of technique scheme improved and replenish, the present invention also comprises following additional technical feature.
Described heating element is the finned heating tube of far infrared radiation, is provided with laterally four groups of heating tubes side by side in the heating cabinet, and heating tube is parallel at the bottom of the transformer tank.Heating tube is arranged side by side, and heating cabinet is evenly heated, and prevents local overheating, influences transformer.
Or one be provided with eight groups of heating tubes in the heating cabinet, and eight groups of heating tubes are divided into two rows, and heating tube is parallel at the bottom of the transformer tank.To be rapidly heated, shorten the carburetion time.
The transformer tank bottom is provided with the left and right feet that is higher than heating cabinet, and the transformer tank bottom is provided with three heating cabinets, establishes described feet between the adjacent heating cabinet.Left and right feet is higher than heating cabinet, can avoid heating cabinet to land, and makes things convenient for the installation of heating cabinet.Three heating cabinets make transformer-cabinet bottom homogeneous heating.
Be provided with a temperature sensor in the heating cabinet, described temperature sensor links to each other with second thermostat, the power supply of the information Control heating element that second thermostat obtains according to temperature sensor.Second thermostat avoids heating element, heating cabinet overheated, prevents to damage.
Temperature sensor and heating element are fixed on the fixed head side by side, establish heating element on the fixed head of temperature sensor both sides.
The transformer tank body side surface is provided with heating system binding post case, is provided with the binding post that is electrically connected with heating element in the binding post case.
Beneficial effect: the present technique scheme can heat to transformer oil when temperature is lower than the transformer oil solidifying point, melts and can starting transformer up to transformer oil, thereby guarantees the normal operation of electric power system.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a heating element assembly structure sketch map of the present invention.
Fig. 3 is the plan structure sketch map of Fig. 2.
Among the figure: the 1-transformer tank; The 2-transformer body; The 3-heating cabinet; 4-first temperature controller; The 5-heating element; The 6-feet; The 7-temperature sensor; 8-second thermostat; The 9-fixed head; 10-binding post case.
Embodiment
Below in conjunction with Figure of description technical scheme of the present invention is done further detailed description.
As shown in Figure 1; The present invention includes transformer tank 1, be located at the transformer body 2 in the transformer tank 1, transformer oil, the automatic heating device in injection transformer case 1 body; Described automatic heating device comprises the heating cabinet 3 of being located at transformer tank 1 bottom, the heating element 5 that is arranged in heating cabinet 3 and first temperature controller 4 of working according to transformer tank 1 oily temperature control heating element 5; Transformer tank 1 bottom is provided with a plurality of spaced heating cabinets 3, and the bottom surface of the end face of heating cabinet 3 and transformer tank 1 is close to.Transformer tank 1 bottom is provided with the left and right feet 6 that is higher than heating cabinet 3, and transformer tank 1 bottom is provided with three heating cabinets 3, lays respectively at the left, center, right of transformer tank 1 bottom, establishes described feet 6 between the adjacent heating cabinet 3.
Like Fig. 2, shown in 3, heating element 5 is the finned heating tube of far infrared radiation, is provided with laterally four groups of heating tubes side by side in the heating cabinet 3, and heating tube is parallel to 1 end of transformer tank; Or one be provided with eight groups of heating tubes in the heating cabinet 3, and eight groups of heating tubes are divided into two rows, and heating tube is parallel to 1 end of transformer tank.To be rapidly heated, shorten the carburetion time.Temperature sensor 7 is fixed on the fixed head 9 with heating element 5 side by side, establishes heating element 5 on the fixed head 9 of temperature sensor 7 both sides.Transformer tank 1 body side surface is provided with heating system binding post case 10, is provided with the binding post that is electrically connected with heating element 5 in the binding post case 10.
For avoiding heating element 5, heating cabinet 3 overheated, prevent to damage.In heating cabinet 3, be provided with a temperature sensor 7, described temperature sensor 7 links to each other with second thermostat 8, the power supply of the information Control heating element 5 that second thermostat 8 obtains according to temperature sensor 7.
Thereby when the transformer oil temperature is lower than solidifying point, having second thermostat 8 to send signal supplies power to heating cabinet; Heating cabinet begins transformer had and heats; Transformer oil will begin from the transformer bottom to melt and circulate up and down; All transformer oil all melt in transformer tank 1, and first thermostat 4 obtains heating behind the signal and stops, and transformer just can start.
Claims (7)
1. oil-filled transformer with automatic heating device; Comprise transformer tank (1), be located at the transformer body (2) in the transformer tank (1), the transformer oil in injection transformer case (1) body; It is characterized in that: oil-filled transformer also is provided with automatic heating device; Described automatic heating device comprises first temperature controller (4) of the heating cabinet (3) of being located at transformer tank (1) bottom, the heating element (5) that is arranged in heating cabinet (3) and control heating element (5) work when transformer tank (1) oil temperature is low; Transformer tank (1) bottom is provided with a plurality of spaced heating cabinets (3), and the bottom surface of the end face of heating cabinet (3) and transformer tank (1) is close to.
2. a kind of oil-filled transformer according to claim 1 with automatic heating device; It is characterized in that: described heating element (5) is the finned heating tube of far infrared radiation; Be provided with laterally four groups of heating tubes side by side in one heating cabinet (3), heating tube is parallel to transformer tank (1) end.
3. a kind of oil-filled transformer according to claim 1 with automatic heating device; It is characterized in that: described heating element (5) is the finned heating tube of far infrared radiation; Be provided with eight groups of heating tubes in one heating cabinet (3); Eight groups of heating tubes are divided into two rows, and heating tube is parallel to transformer tank (1) end.
4. a kind of oil-filled transformer according to claim 1 with automatic heating device; It is characterized in that: transformer tank (1) bottom is provided with the left and right feet (6) that is higher than heating cabinet (3); Transformer tank (1) bottom is provided with three heating cabinets (3), establishes described feet (6) between the adjacent heating cabinet (3).
5. according to the described a kind of oil-filled transformer of the arbitrary claim of claim 1-4 with automatic heating device; It is characterized in that: be provided with a temperature sensor (7) in the heating cabinet (3); Described temperature sensor (7) links to each other with second thermostat (8), the power supply of the information Control heating element (5) that second thermostat (8) obtains according to temperature sensor (7).
6. a kind of oil-filled transformer according to claim 5 with automatic heating device; It is characterized in that: temperature sensor (7) is fixed on the fixed head (9) with heating element (5) side by side, establishes heating element (5) on the fixed head (9) of temperature sensor (7) both sides.
7. a kind of oil-filled transformer according to claim 6 with automatic heating device; It is characterized in that: transformer tank (1) body side surface is provided with heating system binding post case (10), is provided with the binding post that is electrically connected with heating element (5) in the binding post case (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179452.1A CN102682957B (en) | 2012-05-30 | 2012-05-30 | Oil-immersed transformer with automatic heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179452.1A CN102682957B (en) | 2012-05-30 | 2012-05-30 | Oil-immersed transformer with automatic heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102682957A true CN102682957A (en) | 2012-09-19 |
| CN102682957B CN102682957B (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210179452.1A Active CN102682957B (en) | 2012-05-30 | 2012-05-30 | Oil-immersed transformer with automatic heating device |
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| Country | Link |
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| CN (1) | CN102682957B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504879A (en) * | 2016-10-26 | 2017-03-15 | 国家电网公司 | A kind of oil-filled transformer with automatic heating device |
| US20180295675A1 (en) * | 2017-04-07 | 2018-10-11 | Abb Schweiz Ag | Insulation fluid heating apparatus and method |
| CN109099579A (en) * | 2018-07-09 | 2018-12-28 | 中国电力科学研究院有限公司 | Device for heating transformer oil for bushing Insulation Test |
| CN111818677A (en) * | 2020-06-18 | 2020-10-23 | 国家电网有限公司 | Geothermal film heating terminal box |
| CN111863412A (en) * | 2020-07-14 | 2020-10-30 | 合肥鑫伟电力设备有限公司 | Oil-immersed transformer with automatic heating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03225808A (en) * | 1990-01-30 | 1991-10-04 | Daihen Corp | Snow-melting apparatus utilizing waste heat of oil-filled electrical equipment |
| CN1390356A (en) * | 1999-11-17 | 2003-01-08 | 特里克斯科有限责任公司 | Apparatus and method for cooling power transformers |
| US8081054B2 (en) * | 2009-12-10 | 2011-12-20 | Guentert Iii Joseph J | Hyper-cooled liquid-filled transformer |
| CN202564019U (en) * | 2012-05-30 | 2012-11-28 | 卧龙电气集团股份有限公司 | Oil-immersed transformer with self-heating device |
-
2012
- 2012-05-30 CN CN201210179452.1A patent/CN102682957B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03225808A (en) * | 1990-01-30 | 1991-10-04 | Daihen Corp | Snow-melting apparatus utilizing waste heat of oil-filled electrical equipment |
| CN1390356A (en) * | 1999-11-17 | 2003-01-08 | 特里克斯科有限责任公司 | Apparatus and method for cooling power transformers |
| US8081054B2 (en) * | 2009-12-10 | 2011-12-20 | Guentert Iii Joseph J | Hyper-cooled liquid-filled transformer |
| CN202564019U (en) * | 2012-05-30 | 2012-11-28 | 卧龙电气集团股份有限公司 | Oil-immersed transformer with self-heating device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504879A (en) * | 2016-10-26 | 2017-03-15 | 国家电网公司 | A kind of oil-filled transformer with automatic heating device |
| US20180295675A1 (en) * | 2017-04-07 | 2018-10-11 | Abb Schweiz Ag | Insulation fluid heating apparatus and method |
| CN108695104A (en) * | 2017-04-07 | 2018-10-23 | Abb瑞士股份有限公司 | Dielectric fluid heating equipment and method |
| US10999897B2 (en) * | 2017-04-07 | 2021-05-04 | Abb Power Grids Switzerland Ag | Insulation fluid heating apparatus and method |
| CN109099579A (en) * | 2018-07-09 | 2018-12-28 | 中国电力科学研究院有限公司 | Device for heating transformer oil for bushing Insulation Test |
| CN109099579B (en) * | 2018-07-09 | 2022-03-04 | 中国电力科学研究院有限公司 | Transformer oil heating device for high-voltage bushing insulation test |
| CN111818677A (en) * | 2020-06-18 | 2020-10-23 | 国家电网有限公司 | Geothermal film heating terminal box |
| CN111863412A (en) * | 2020-07-14 | 2020-10-30 | 合肥鑫伟电力设备有限公司 | Oil-immersed transformer with automatic heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102682957B (en) | 2015-05-27 |
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Effective date of registration: 20190423 Address after: 750000 No. 221 Xingyuan Road, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: WOLONG ELECTRIC YINCHUAN TRANSFORMER Co.,Ltd. Address before: 312300 No. 1801 Renmin West Road, Shangyu City, Shaoxing City, Zhejiang Province Co-patentee before: WOLONG ELECTRIC YINCHUAN TRANSFORMER Co.,Ltd. Patentee before: WOLONG ELECTRIC GROUP Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An oil immersed transformer with an automatic heating device Effective date of registration: 20231127 Granted publication date: 20150527 Pledgee: Ningxia East Guarantee Co.,Ltd. Pledgor: WOLONG ELECTRIC YINCHUAN TRANSFORMER Co.,Ltd. Registration number: Y2023640000044 |