CN105225819A - A kind of transformer body heating means and application thereof - Google Patents

A kind of transformer body heating means and application thereof Download PDF

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Publication number
CN105225819A
CN105225819A CN201510747960.9A CN201510747960A CN105225819A CN 105225819 A CN105225819 A CN 105225819A CN 201510747960 A CN201510747960 A CN 201510747960A CN 105225819 A CN105225819 A CN 105225819A
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CN
China
Prior art keywords
transformer
circulation
heating
hot oil
oil spray
Prior art date
Application number
CN201510747960.9A
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Chinese (zh)
Inventor
何恩家
莫生海
邵明
Original Assignee
青海智鑫电力监理咨询有限公司
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by 青海智鑫电力监理咨询有限公司 filed Critical 青海智鑫电力监理咨询有限公司
Priority to CN201510747960.9A priority Critical patent/CN105225819A/en
Publication of CN105225819A publication Critical patent/CN105225819A/en

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Abstract

The present invention relates to power transmission and transforming equipment technical field, a kind of transformer body heating means, it is characterized in that, the method is when transformer Circulation and Hot Oil Spray, by by step down side short circuit in winding, applies rated current to high-pressure side, by the thermal effect of electricity, execute additional power source from the heating of transformer equipment inside, temperature during raising Circulation and Hot Oil Spray in transformer body, to improve the dry treatment effect of heating transformer built-in electrical insulation under special low temperature environment.Described a kind of transformer body heating means, it is characterized in that, described when transformer Circulation and Hot Oil Spray, under high and cold temperature, when carrying out transformer Circulation and Hot Oil Spray, reduce the difference that oil filter exports and enters temperature in transformer body, heat from inside transformer, ensure the efficiency of Circulation and Hot Oil Spray, increase the effect of insulation torrefaction.The application of a kind of transformer body heating means of the present invention, is applicable to high-capacity main transformer depressor under high and cold adverse circumstances, installs built-in electrical insulation drying process.

Description

A kind of transformer body heating means and application thereof

Technical field

The present invention relates to power transmission and transforming equipment technical field, particularly relate to a kind of transformer body heating means and application thereof.

Background technology

Transformer is installed, and needs to carry out Circulation and Hot Oil Spray, carries out insulation torrefaction process to inside transformer.But, at extremely frigid zones, as the Northwest, the extremely frigid zones such as the Northeast, especially winter, outside air temperature is extremely low, adopt conventional Circulation and Hot Oil Spray method, be difficult to reach the temperature of code requirement or need long time just can reach code requirement, there is the engineering time long, the problem of waste of manpower, material resources.

Summary of the invention

The present invention is above-mentioned at extremely frigid zones for solving, as the Northwest, the extremely frigid zones such as the Northeast, especially winter, outside air temperature is extremely low, adopts conventional Circulation and Hot Oil Spray method, is difficult to reach the temperature of code requirement or needs long time just can reach code requirement, there is the engineering time long, the problem of waste of manpower, material resources.A kind of transformer body heating means are provided, when transformer Circulation and Hot Oil Spray, increase a kind of device to transformer body heating, improve transformer body and internal temperature, reduce the hot oil temperature loss entering transformer body, reduce the temperature difference between hot oil outlet and entrance, reach the Circulation and Hot Oil Spray temperature of code requirement fast, shorten the engineering time, save human and material resources, guarantee that the drying process of built-in electrical insulation meets technological requirement under transformer low temperature environment.Meet high-capacity main transformer depressor installation engineering quality under high and cold adverse circumstances.

Technical scheme of the present invention is: a kind of transformer body heating means, it is characterized in that, the method is when transformer Circulation and Hot Oil Spray, by by step down side short circuit in winding, apply rated current to high-pressure side, by the thermal effect of electricity, execute additional power source from the heating of transformer equipment inside, temperature during raising Circulation and Hot Oil Spray in transformer body, to improve the dry treatment effect of heating transformer built-in electrical insulation under special low temperature environment.

Described a kind of transformer body heating means, it is characterized in that, described when transformer Circulation and Hot Oil Spray, under high and cold temperature, when carrying out transformer Circulation and Hot Oil Spray, reduce the difference that oil filter exports and enters temperature in transformer body, heat from inside transformer, ensure the efficiency of Circulation and Hot Oil Spray, increase the effect of insulation torrefaction.

Described a kind of transformer body heating means, it is characterized in that, described additional power source of executing is from the heating of transformer equipment inside, temperature during raising Circulation and Hot Oil Spray in transformer body, comprising capital equipment and connected mode is: construction power supply connects the portable compensation condenser group of step-up transformer connection TB8-8300 and connects main transformer to be heated.

Described a kind of transformer body heating means, is characterized in that, described transformer body heating means step is:

(1), before Circulation and Hot Oil Spray, first at the other installation of main transformer one group of heater, be made up of construction power supply step-up transformer, TB8-8300 compensation condenser group and main transformer body is heated;

(2) simultaneously, hot oil circulating device heats transformer oil;

(3) thermometer is utilized to measure main transformer body temperature, until main transformer body and internal temperature thereof reach, the temperature that Circulation and Hot Oil Spray specifies;

(4), while carrying out Circulation and Hot Oil Spray, continue to heat main transformer body, guarantee that transformer body temperature constant remains on Circulation and Hot Oil Spray temperature, until Circulation and Hot Oil Spray end-of-job.

The application of a kind of transformer body heating means of the present invention, is characterized in that, the application of described a kind of transformer body heating means, is applicable to high-capacity main transformer depressor under high and cold adverse circumstances, installs built-in electrical insulation drying process.

Beneficial effect of the present invention

A kind of transformer body heating means of the present invention, solve at extremely frigid zones, as the Northwest, the extremely frigid zones such as the Northeast, especially winter, outside air temperature is extremely low, adopts conventional Circulation and Hot Oil Spray method, is difficult to reach the temperature of code requirement or needs long time just can reach the problem of code requirement.A kind of transformer body heating means, when transformer Circulation and Hot Oil Spray, increase a kind of device to transformer body heating, improve transformer body and internal temperature, reduce the hot oil temperature loss entering transformer body, reduce the temperature difference between hot oil outlet and entrance, reach the Circulation and Hot Oil Spray temperature of code requirement fast, shorten the engineering time, save human and material resources, guarantee that the drying process of built-in electrical insulation meets technological requirement under transformer low temperature environment.Meet high-capacity main transformer depressor installation engineering quality under high and cold adverse circumstances.

Accompanying drawing explanation

Below in conjunction with embodiment, the present invention is described in further detail.

Fig. 1 is that a kind of transformer body heating means of the present invention comprise capital equipment and connected mode structural representation.

Embodiment

With reference to shown in accompanying drawing 1, wherein: 1 is construction power supply; 2 is step-up transformers; 3 is the portable compensation condenser groups of TB8-8300; 4 is connect main transformer to be heated.

A kind of transformer body heating means of the present invention, it is characterized in that, the method is when transformer Circulation and Hot Oil Spray, by by step down side short circuit in winding, apply rated current to high-pressure side, by the thermal effect of electricity, execute additional power source from the heating of transformer equipment inside, temperature during raising Circulation and Hot Oil Spray in transformer body, to improve the dry treatment effect of heating transformer built-in electrical insulation under special low temperature environment.

Described a kind of transformer body heating means, it is characterized in that, described when transformer Circulation and Hot Oil Spray, under high and cold temperature, when carrying out transformer Circulation and Hot Oil Spray, reduce the difference that oil filter exports and enters temperature in transformer body, heat from inside transformer, ensure the efficiency of Circulation and Hot Oil Spray, increase the effect of insulation torrefaction.

Described a kind of transformer body heating means, it is characterized in that, described additional power source of executing is from the heating of transformer equipment inside, temperature when improving Circulation and Hot Oil Spray in transformer body, comprising capital equipment and connected mode is: construction power supply 1 connects step-up transformer 2 and connects the portable compensation condenser group 3 of TB8-8300 and connect main transformer 4 to be heated.

Specific implementation method:

A kind of transformer body heating means step of the present invention is:

(1), before Circulation and Hot Oil Spray, first at the other installation of main transformer 4 one group of heater, be made up of construction power supply 1 step-up transformer 2, TB8-8300 compensation condenser group 3 and main transformer body is heated;

(2) simultaneously, hot oil circulating device heats transformer oil;

(3) thermometer is utilized to measure main transformer body temperature, until main transformer body and internal temperature thereof reach, the temperature that Circulation and Hot Oil Spray specifies;

(4), while carrying out Circulation and Hot Oil Spray, continue to heat main transformer body, guarantee that transformer body temperature constant remains on Circulation and Hot Oil Spray temperature, until Circulation and Hot Oil Spray end-of-job.

The application of these bright a kind of transformer body heating means, is characterized in that, the application of described a kind of transformer body heating means, is applicable to high-capacity main transformer depressor under high and cold adverse circumstances, installs built-in electrical insulation drying process.

The above; be only the present invention's preferably embodiment; protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen within the scope of protection of the present invention.

Claims (5)

1. transformer body heating means, it is characterized in that, the method is when transformer Circulation and Hot Oil Spray, by by step down side short circuit in winding, apply rated current to high-pressure side, by the thermal effect of electricity, execute additional power source from the heating of transformer equipment inside, temperature during raising Circulation and Hot Oil Spray in transformer body, to improve the dry treatment effect of heating transformer built-in electrical insulation under special low temperature environment.
2. a kind of transformer body heating means according to right 1, it is characterized in that, described when transformer Circulation and Hot Oil Spray, under high and cold temperature, when carrying out transformer Circulation and Hot Oil Spray, reduce the difference that oil filter exports and enters temperature in transformer body, heat from inside transformer, ensure the efficiency of Circulation and Hot Oil Spray, increase the effect of insulation torrefaction.
3. a kind of transformer body heating means according to right 1, it is characterized in that, described additional power source of executing is from the heating of transformer equipment inside, temperature during raising Circulation and Hot Oil Spray in transformer body, comprising capital equipment and connected mode is: construction power supply (1) connects portable compensation condenser group (3) of step-up transformer (2) connection TB8-8300 and connects main transformer to be heated (4).
4. a kind of transformer body heating means according to right 1, is characterized in that, described transformer body heating means step is:
(1), before Circulation and Hot Oil Spray, first at the other installation of main transformer (4) one group of heater, be made up of construction power supply (1) step-up transformer (2), TB8-8300 compensation condenser group (3) and main transformer body is heated;
(2) simultaneously, hot oil circulating device heats transformer oil;
(3) thermometer is utilized to measure main transformer body temperature, until main transformer body and internal temperature thereof reach, the temperature that Circulation and Hot Oil Spray specifies;
(4), while carrying out Circulation and Hot Oil Spray, continue to heat main transformer body, guarantee that transformer body temperature constant remains on Circulation and Hot Oil Spray temperature, until Circulation and Hot Oil Spray end-of-job.
5. an application for transformer body heating means, is characterized in that, the application of described a kind of transformer body heating means, is applicable to high-capacity main transformer depressor under high and cold adverse circumstances, installs built-in electrical insulation drying process.
CN201510747960.9A 2015-11-06 2015-11-06 A kind of transformer body heating means and application thereof CN105225819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510747960.9A CN105225819A (en) 2015-11-06 2015-11-06 A kind of transformer body heating means and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510747960.9A CN105225819A (en) 2015-11-06 2015-11-06 A kind of transformer body heating means and application thereof

Publications (1)

Publication Number Publication Date
CN105225819A true CN105225819A (en) 2016-01-06

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001223119A (en) * 2000-02-09 2001-08-17 Fuji Electric Co Ltd Method of drying transformer
CN101908404A (en) * 2010-06-30 2010-12-08 国家电网公司 Method and device for carrying out field drying on convertor transformer
CN103151720A (en) * 2013-02-25 2013-06-12 山东电力设备有限公司 Method and equipment for heating transformer oil from inside of transformer
CN103680912A (en) * 2013-12-24 2014-03-26 天威保变(秦皇岛)变压器有限公司 Post processing technology of transformer products
CN104036939A (en) * 2014-07-02 2014-09-10 山东电力设备有限公司 Direct-current heating drying method and direct-current heating device used for large electric reactor on site

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001223119A (en) * 2000-02-09 2001-08-17 Fuji Electric Co Ltd Method of drying transformer
CN101908404A (en) * 2010-06-30 2010-12-08 国家电网公司 Method and device for carrying out field drying on convertor transformer
CN103151720A (en) * 2013-02-25 2013-06-12 山东电力设备有限公司 Method and equipment for heating transformer oil from inside of transformer
CN103680912A (en) * 2013-12-24 2014-03-26 天威保变(秦皇岛)变压器有限公司 Post processing technology of transformer products
CN104036939A (en) * 2014-07-02 2014-09-10 山东电力设备有限公司 Direct-current heating drying method and direct-current heating device used for large electric reactor on site

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘锐等: "大型变压器现场加热干燥方法的研究与应用", 《中国电机工程学报》 *

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Application publication date: 20160106

RJ01 Rejection of invention patent application after publication