CN110933792A - Transformer fire-extinguishing true test insulating oil heating system and method - Google Patents
Transformer fire-extinguishing true test insulating oil heating system and method Download PDFInfo
- Publication number
- CN110933792A CN110933792A CN201911226231.3A CN201911226231A CN110933792A CN 110933792 A CN110933792 A CN 110933792A CN 201911226231 A CN201911226231 A CN 201911226231A CN 110933792 A CN110933792 A CN 110933792A
- Authority
- CN
- China
- Prior art keywords
- oil
- heating
- preheating
- tank
- oil tank
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/78—Heating arrangements specially adapted for immersion heating
- H05B3/82—Fixedly-mounted immersion heaters
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a transformer fire-extinguishing true-type test insulating oil heating system which comprises a uniform heating/constant temperature device, a preheating device, an oil supplementing device and a heating control module, wherein the uniform heating/constant temperature device is arranged in a true-type test transformer oil tank, the preheating device is used for preheating cold oil and then injecting the cold oil into the oil tank, the oil supplementing device is used for supplementing the cold oil, the heating control module is used for providing power for the uniform heating/constant temperature device and the preheating device and controlling heating power, the uniform heating/constant temperature device and the preheating device are both connected to the heating control module through power lines and control lines, a backflow pipe is communicated between the preheating device and the oil tank and provided with a backflow oil pump, the oil supplementing device is communicated with the preheating device through the preheating oil pump, and the oil. The method can uniformly heat the insulating oil to the temperature under the actual working condition, so that the true fire extinguishing test data of the transformer oil is more accurate, and the research level of the transformer fire extinguishing technology is improved; meanwhile, the insulating oil can be recycled, and the test economy is high.
Description
Technical Field
The invention relates to the technical field of disaster prevention and reduction of a power system, in particular to a system and a method for uniformly heating insulating oil in a transformer fire extinguishing true test.
Background
The power transformer is a power junction of a power energy internet, tens of tons of hydrocarbon insulating mineral oil are contained in the power transformer, and once a fire disaster happens, a large-area and long-time power failure accident can be caused, so that major property loss and even casualties are caused. In order to research the fire extinguishing performance of a transformer fire extinguishing means and improve the fire prevention level of the transformer, a large number of transformer true fire extinguishing tests are required to be developed. The existing test platform injects normal temperature transformer oil into the transformer to carry out ignition and fire extinguishing tests, however, the temperature of the internal insulating oil reaches 90-120 ℃ because the actual transformer operates for a long time after oil is filled. The combustion heat release and gas release of the insulating oil at high temperature and normal temperature are greatly different from the fire-fighting and fire-extinguishing characteristics, and the test carried out by using the normal temperature oil is difficult to accurately simulate the real working condition and obtain accurate test data.
Furthermore, the distribution of the iron core, the winding and other connecting parts inside the transformer is irregular, which hinders the heat conduction of the insulating oil. In order to ensure that the temperature rises uniformly in the heating process of tens of tons of insulating oil, the temperature is kept constant in the test process, and a heating medium needs to be distributed uniformly throughout the whole oil tank as far as possible.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects in the prior art and providing the system and the method for uniformly heating the insulating oil for the transformer fire-extinguishing true test, wherein the insulating oil in the true test transformer can be uniformly heated to the temperature under the actual working condition, so that the true fire-extinguishing test data of the transformer oil is more accurate, and the research level of the transformer fire-extinguishing technology is improved; meanwhile, the insulating oil can be recycled, and the test economy is high.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a transformer fire-extinguishing true-type test insulating oil heating system comprises a uniform heating/constant temperature device which is arranged in an oil tank of a true-type test transformer and can uniformly heat insulating oil to the temperature under the actual working condition, a preheating device which is used for preheating cold oil and then injecting the preheated cold oil into the oil tank, an oil supplementing device which is used for supplementing cold oil to the preheating device and the oil tank, and a heating control module which is used for providing a power supply for the uniform heating/constant temperature device and the preheating device and controlling the heating power, the uniform heating/constant temperature device and the preheating device are both connected to the heating control module through a power line and a control line, a return pipe is communicated between the preheating device and the oil tank, and a return oil pump is arranged, the oil supplementing device is communicated with the pre-heating device through a pre-heating oil pump, and the oil supplementing device, the pre-heating device and an oil conservator of the true test transformer are communicated through an oil conservator oil pump.
As a further improvement of the above technical solution:
preferably, the uniform heating/constant temperature device comprises three groups of three solid heating resistors which are arranged around an iron core and a winding in the oil tank and can be uniformly covered with insulating oil, and the solid heating resistors are connected to the heating control module through power lines and control lines.
Preferably, the preheating device comprises a preheating oil tank and a preheating resistor arranged in the preheating oil tank; preheating resistance is connected to through power cord and control line heating control module, the conservator oil pump with preheat the oil tank intercommunication, preheat and be equipped with first valve on the pipeline between oil tank and the conservator oil pump.
Preferably, the oil supplementing device is an oil storage tank, the conservator oil pump is communicated with the oil storage tank, and a second valve is arranged on a pipeline between the conservator oil pump and the oil storage tank.
Preferably, a third valve is arranged on the return pipe between the return oil pump and the oil tank.
Preferably, the lower end of the oil tank is provided with an oil drain valve.
Preferably, the heating power of the three-dimensional heating resistor and the resistance wire of the preheating resistor is determined according to the mass, specific heat, heating time and heating temperature of the heated insulating oil:
the heating power of the resistance wire x the heating time is equal to the specific heat of the insulating oil x the quality of the insulating oil x the heating temperature x the heating efficiency.
Preferably, the length of the resistance wire of the three-dimensional heating resistor needs to be determined according to the internal actual condition of the oil tank, and then the power of the resistance wire in unit length is determined according to the power of the resistance wire, and the calculation method is as follows:
the heating power of the resistance wire per unit length is equal to the heating power of the resistance wire/the length of the resistance wire.
The invention also provides a method for heating the insulating oil by using the insulating oil heating system for the transformer fire-extinguishing true test, which comprises a uniform heating/constant-temperature heating mode in the oil tank and a preheating and oil-tank-injecting mode outside the oil tank;
when the mode of uniform heating/constant temperature heating in the oil tank is adopted, cold oil is injected into the oil conservator by the oil storage tank through the second valve and the oil conservator oil pump, then is injected into the oil tank, and is uniformly heated through the three-dimensional heating resistor; the heating power is adjusted through the heating control module, so that the temperature is kept constant; after the test is finished, if the insulating oil can be reused, the insulating oil is left in the oil tank for storage, or is pumped back into the preheating oil tank for storage through a backflow oil pump through a backflow pipe and a third valve; if the waste water can not be reused, the waste water is discharged through an oil discharge valve;
when the mode of preheating outside the oil tank and then injecting the oil tank is adopted, the oil storage tank pumps cold oil into the preheating oil tank through the oil pump for preheating, and the heating power is adjusted through the heating control module, so that the temperature is kept constant; then the oil is pumped into an oil conservator through a first valve and an oil conservator oil pump and then is injected into the oil tank; after the test is finished, if the insulating oil can be reused, the insulating oil is left in the oil tank for storage, or is pumped back into the preheating oil tank for storage through a backflow oil pump through a backflow pipe and a third valve; if the waste water cannot be reused, the waste water is discharged through an oil discharge valve.
Compared with the prior art, the invention has the advantages that:
according to the uniform heating system and method for the insulating oil in the transformer fire-extinguishing true test, the insulating oil in the true test transformer can be uniformly heated to the temperature (90-120 ℃) under the actual working condition, the temperature is kept constant and uniformly distributed, the true fire-extinguishing test data of the transformer oil is more accurate, and the research level of the transformer fire-extinguishing technology is improved; meanwhile, the invention can provide two heating modes, whether the constant temperature needs to be kept or not is selected according to the test conditions, the insulating oil can be recycled, and the test economy is high. When the fire extinguishing test has low requirements on the constant oil temperature, the insulating oil can be preheated and then injected into the transformer oil tank. The invention simulates the running state of the transformer under the real working condition for the fire extinguishing test, greatly improves the accuracy of the fire extinguishing test and guides the research of the fire extinguishing technology of the transformer.
Drawings
FIG. 1 is a schematic diagram of a transformer fire-extinguishing true test insulating oil uniform heating system.
Fig. 2 is a top view of a three-dimensional heating resistor arrangement in the present invention.
Illustration of the drawings:
1. a true type test transformer; 1-1, an oil tank; 1-2, iron core; 1-3, winding; 1-4, conservator; 2-1, a three-dimensional heating resistor; 2-2, preheating a resistor; 3. a heating control module; 4. preheating the oil tank; 5-1, a first valve; 5-2, a second valve; 5-3, a third valve; 6-1, an oil conservator oil pump; 6-2, preheating an oil pump; 6-3, a reflux oil pump; 7. a return pipe; 8. an oil storage tank; 9. an oil discharge valve.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
As shown in fig. 1 and fig. 2, an embodiment of the uniform heating system for insulating oil in a transformer fire extinguishing true test according to the present invention includes a uniform heating/constant temperature device, a preheating device, an oil supplementing device, and a heating control module 3; the heating control module 3 is used to supply power to the uniform heating/constant temperature device and the preheating device and control heating power.
In this embodiment, the uniform heating/constant temperature device is used for uniformly heating the insulating oil in the oil tank 1-1 of the true test transformer 1, and includes three sets of three-dimensional heating resistors 2-1 arranged in the oil tank 1-1, the three sets of three-dimensional heating resistors 2-1 are arranged around the iron core 1-2 and the winding 1-3 and uniformly covered, and the insulating oil at each corner is covered as much as possible, so as to uniformly heat the insulating oil in the oil tank 1-1 with an irregular space shape, the three-dimensional heating resistors 2-1 are connected to the heating control module 3 through a power line and a control line, so that the insulating oil can be uniformly heated to the temperature under the actual working condition, and during the test, the heating power can be adjusted, so that the temperature is kept constant.
In the embodiment, the preheating device is mainly used for preheating cold oil to test oil temperature and then injecting the cold oil into the oil tank, and can also be used for storing insulating oil which can be reused after the test is finished, and comprises a preheating oil tank 4 and a preheating resistor 2-2 arranged in the preheating oil tank; the preheating resistor 2-2 is connected to the heating control module 3 through a power line and a control line, the preheating oil tank 4 is communicated with the conservator 1-4 of the true test transformer 1 through an conservator oil pump 6-1, and a first valve 5-1 is arranged on a pipeline between the preheating oil tank 4 and the conservator oil pump 6-1. A return pipe 7 is communicated between the transformer oil tank 1-1 and the preheating oil tank 4, a return oil pump 6-3 and a third valve 5-3 are arranged on the return pipe 7, and the third valve 5-3 is positioned between the return oil pump 6-3 and the oil tank 1-1. The lower end of the oil tank 1-1 is provided with an oil discharge valve 9.
In the embodiment, the oil supplementing device is an oil storage tank 8 and is used for supplementing cold oil to the preheating oil tank 4 and the oil tank 1-1 of the transformer, the oil storage tank 8 is communicated with an oil conservator 1-4 of the true type test transformer 1 through an oil conservator oil pump 6-1, and a second valve 5-2 is arranged on a pipeline between the oil conservator oil pump 6-1 and the oil storage tank 8; the oil storage tank 8 is communicated with the preheating oil tank 4 through a preheating oil pump 6-2.
In this embodiment, the resistance wire heating power of the three-dimensional heating resistor 2-1 and the preheating resistor 2-2 is determined according to the mass, specific heat, heating time and heating temperature of the heated insulating oil:
the heating power of the resistance wire x the heating time is equal to the specific heat of the insulating oil x the quality of the insulating oil x the heating temperature x the heating efficiency.
Further, the length of the resistance wire of the three-dimensional heating resistor 2-1 is determined according to the internal actual condition of the transformer oil tank 1-1, and then the power of the resistance wire in unit length is determined according to the power of the resistance wire, and the calculation method is as follows:
the heating power of the resistance wire per unit length is equal to the heating power of the resistance wire/the length of the resistance wire.
The invention is further illustrated below with specific parameters:
the true test transformer 1 adopts a 220kV transformer, and 50 cubes of transformer oil are contained inside the transformer. For convenience of installation, when the transformer is assembled, the arrangement mode, the heating power and the resistance wire length of the required three-dimensional heating resistor 2-1 are calculated. The calculation method is as follows:
according to the insulating oil density of 0.8g/cm3Specific heat 500J/(kg. DEG C), the time for heating the insulating oil from the normal temperature of 20 ℃ to 120 ℃ is 20min, and the heating efficiency is 0.8:
heating power × 1200s is 500 × 40 × 103×100℃×0.8
Heating power is 1333.3kW
The size of the internal space of the transformer oil tank is about 12m multiplied by 3.5m multiplied by 3m, 3-phase windings are arranged in the transformer oil tank, 3 layers of three-dimensional heating resistors are arranged 2-1, the maximum size of the three-dimensional heating resistors is 11 multiplied by 2.5m, the total size of the support and the resistance wire is 62m, the length of the support is subtracted, and the length of the resistance wire is about 35 m. The resistance wire parameter is 38kW/m, and the power frequency is 380V.
Therefore, with the uniform heating/thermostat device in the present embodiment, the three-dimensional heating resistor 2-1 is arranged inside the oil tank 1-1 of the true type test transformer 1 in the above-described manner, and is connected to the heating control module 3 through the power supply line and the control line. The heating control module 3 has a function of adjusting heating power, so that not only heating can be completed, but also the temperature can be controlled to be constant.
For the preheating device, the preheating fuel tank 4 is considered to be 1.2 times of margin, and the volume is 60 cubic. The heating power of the preheating resistor 2-2 is 1600kW by the same calculation. The shape of the interior of the preheating oil tank is regular, the heat conduction is smooth, and heating resistance wires can be arranged according to a conventional method.
The power of the heating control module 3 power supply needs to be more than 1600 kW.
The capacity of the reservoir tank 8 was set to 120m in consideration of the test margin3。
The method for heating the insulating oil by the insulating oil heating system for the transformer fire-extinguishing true test has two heating modes: (1) a mode of uniform heating/constant temperature heating in the oil tank; (2) the mode of preheating and refilling the fuel tank outside the fuel tank.
When a mode of uniform heating/constant temperature heating in the oil tank is adopted (1), cold oil is injected into the oil conservator 1-4 and then into the transformer oil tank 1-1 through the second valve 5-2 and the oil conservator oil pump 6-1 by the oil storage tank 8, and is uniformly heated through the three-dimensional heating resistor 2-1; and adjusting the heating power by the heating control module 3 so that the temperature is kept constant; after the test is finished, if the insulating oil can be reused, the insulating oil is left in the oil tank 1-1 for storage, or is pumped into the preheating oil tank 4 for storage through the reflux oil pump 6-3 through the reflux pipe 7 and the third valve 5-3; if the waste water can not be reused, the waste water is discharged through an oil discharge valve 9;
when the mode of preheating outside the oil tank and then injecting the oil tank is adopted (2), the oil storage tank 8 firstly pumps cold oil into the preheating oil tank 4 through the preheating oil pump 6-2 for preheating, and the heating power is adjusted through the heating control module 3, so that the temperature is kept constant; then the oil is pumped into an oil conservator 1-4 through a first valve 5-1 and an oil conservator oil pump 6-1, and then the oil is injected into a transformer oil tank 1-1; after the test is finished, if the insulating oil can be reused, the insulating oil is left in the oil tank 1-1 for storage, or is pumped into the preheating oil tank 4 for storage through the reflux oil pump 6-3 through the reflux pipe 7 and the third valve 5-3; if the waste water cannot be reused, the waste water is discharged through the drain valve 9.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a transformer true type test insulating oil heating system that puts out a fire which characterized in that: the device comprises an even heating/constant temperature device, a preheating device, an oil supplementing device and a heating control module, wherein the even heating/constant temperature device is arranged in an oil tank of the true type test transformer and can evenly heat insulating oil to the temperature under the actual working condition, the preheating device is used for preheating cold oil and then injecting the cold oil into the oil tank, the oil supplementing device is used for supplementing cold oil to the preheating device and the oil tank, the heating control module is used for providing a power supply for the even heating/constant temperature device and the preheating device and controlling the heating power, the even heating/constant temperature device and the preheating device are connected to the heating control module through power lines and control lines, a return pipe is communicated between the preheating device and the oil tank and provided with a return oil pump, the oil supplementing device is communicated with the preheating device through a preheating oil pump, and the oil supplementing device and an.
2. The transformer fire-extinguishing true test insulating oil heating system according to claim 1, characterized in that: the uniform heating/constant temperature device comprises three groups of three-dimensional heating resistors which surround an iron core and a winding in the oil tank and can uniformly cover insulating oil, and the three-dimensional heating resistors are connected to the heating control module through a power line and a control line.
3. The transformer fire-extinguishing true test insulating oil heating system according to claim 2, characterized in that: the preheating device comprises a preheating oil tank and a preheating resistor arranged in the preheating oil tank; preheating resistance is connected to through power cord and control line heating control module, the conservator oil pump with preheat the oil tank intercommunication, preheat and be equipped with first valve on the pipeline between oil tank and the conservator oil pump.
4. The transformer fire-extinguishing true test insulating oil heating system according to claim 3, characterized in that: the oil supplementing device is an oil storage tank, the conservator oil pump is communicated with the oil storage tank, and a second valve is arranged on a pipeline between the conservator oil pump and the oil storage tank.
5. The transformer fire-extinguishing true test insulating oil heating system according to claim 4, characterized in that: and a third valve is arranged between the return oil pump and the oil tank on the return pipe.
6. The transformer fire-extinguishing true test insulating oil heating system according to claim 5, characterized in that: and an oil discharge valve is arranged at the lower end of the oil tank.
7. The transformer fire extinguishing true type test insulating oil heating system according to any one of claims 3 to 5, characterized in that: the heating power of the three-dimensional heating resistor and the resistance wires of the preheating resistor is determined according to the mass, specific heat, heating time and heating temperature of the heated insulating oil:
the heating power of the resistance wire x the heating time is equal to the specific heat of the insulating oil x the quality of the insulating oil x the heating temperature x the heating efficiency.
8. The transformer fire-extinguishing true test insulating oil heating system according to claim 7, characterized in that: the three-dimensional heating resistor needs to determine the length of the resistance wire according to the internal actual condition of the oil tank, and then the resistance wire power of unit length is determined by the resistance wire power:
the heating power of the resistance wire per unit length is equal to the heating power of the resistance wire/the length of the resistance wire.
9. A method for heating insulating oil by using the transformer fire extinguishing true type test insulating oil heating system according to claim 6, characterized in that: the method comprises a mode of uniform heating/constant temperature heating in the oil tank and a mode of preheating outside the oil tank and then injecting the oil tank;
when the mode of uniform heating/constant temperature heating in the oil tank is adopted, cold oil is injected into the oil conservator by the oil storage tank through the second valve and the oil conservator oil pump, then is injected into the oil tank, and is uniformly heated through the three-dimensional heating resistor; the heating power is adjusted through the heating control module, so that the temperature is kept constant; after the test is finished, if the insulating oil can be reused, the insulating oil is left in the oil tank for storage, or is pumped back into the preheating oil tank for storage through a backflow oil pump through a backflow pipe and a third valve; if the waste water can not be reused, the waste water is discharged through an oil discharge valve;
when the mode of preheating outside the oil tank and then injecting the oil tank is adopted, the oil storage tank pumps cold oil into the preheating oil tank through the oil pump for preheating, and the heating power is adjusted through the heating control module, so that the temperature is kept constant; then the oil is pumped into an oil conservator through a first valve and an oil conservator oil pump and then is injected into the oil tank; after the test is finished, if the insulating oil can be reused, the insulating oil is left in the oil tank for storage, or is pumped back into the preheating oil tank for storage through a backflow oil pump through a backflow pipe and a third valve; if the waste water cannot be reused, the waste water is discharged through an oil discharge valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226231.3A CN110933792B (en) | 2019-12-04 | 2019-12-04 | Transformer fire-extinguishing true test insulating oil heating system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226231.3A CN110933792B (en) | 2019-12-04 | 2019-12-04 | Transformer fire-extinguishing true test insulating oil heating system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110933792A true CN110933792A (en) | 2020-03-27 |
| CN110933792B CN110933792B (en) | 2022-03-08 |
Family
ID=69857865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911226231.3A Active CN110933792B (en) | 2019-12-04 | 2019-12-04 | Transformer fire-extinguishing true test insulating oil heating system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110933792B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121350A (en) * | 2020-08-12 | 2020-12-25 | 国网湖南省电力有限公司 | Environment-friendly transformer multi-fire-type simulation system |
| CN113960399A (en) * | 2021-10-27 | 2022-01-21 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Vacuum arc-extinguishing chamber test system for transformer on-load tap-changer and method thereof |
| CN114129933A (en) * | 2021-11-29 | 2022-03-04 | 国网山东省电力公司电力科学研究院 | Movable heating device and method for transformer oil in fire test of true transformer |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219909A (en) * | 1983-05-30 | 1984-12-11 | Mitsubishi Electric Corp | Life examination device for oil-immersed electric apparatus |
| CN1056928A (en) * | 1990-05-29 | 1991-12-11 | 特兰斯弗勒克斯集团有限公司 | Fluid heating |
| RU61975U1 (en) * | 2006-08-28 | 2007-03-10 | Открытое акционерное общество Специальное проектно-конструкторское и технологическое бюро по погружному электрооборудованию для бурения скважин и добычи нефти "Потенциал" (ОАО СКТБПЭ "Потенциал") | DEVICE FOR PROTECTING ELECTRONIC PRODUCTS FROM COOLING AND MOISTURE PREVENTION |
| CN102360758A (en) * | 2011-10-17 | 2012-02-22 | 兴文县僰力机电工程设备有限公司 | Drying device and drying method of transformer |
| CN102706526A (en) * | 2012-05-14 | 2012-10-03 | 中国电力科学研究院 | Anti-vibration test model and test method for power transformer and casing pipe |
| CN102903482A (en) * | 2012-09-29 | 2013-01-30 | 苏州华电电气股份有限公司 | Self-heating device for on-side transformer oil treatment |
| CN104297648A (en) * | 2014-10-17 | 2015-01-21 | 国网上海市电力公司 | Temperature and flow speed control device used for transformer oil insulation heat ageing test and test method thereof |
| CN104517701A (en) * | 2013-09-27 | 2015-04-15 | 刁俊起 | Fire extinguishing device of transformer |
| KR20150077085A (en) * | 2013-12-27 | 2015-07-07 | 주식회사 효성 | Radiating apparatus for transformer |
| CN204832438U (en) * | 2015-08-18 | 2015-12-02 | 国网江西省电力公司南昌供电分公司 | Transformer internal discharge trouble analogue test device based on signal acquisition discharges |
| CN105259482A (en) * | 2015-10-26 | 2016-01-20 | 西南交通大学 | Traction transformer layered oilpaper insulation dielectric response experiment system |
| CN106504879A (en) * | 2016-10-26 | 2017-03-15 | 国家电网公司 | A kind of oil-filled transformer with automatic heating device |
| KR20170078207A (en) * | 2015-12-29 | 2017-07-07 | 주식회사 케이디파워 | oil immersed transformer |
| CN107390064A (en) * | 2017-08-03 | 2017-11-24 | 中国电力科学研究院 | A kind of ageing test apparatus and application method of insulating oil or paper oil insulation |
| 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 |
| CN109254242A (en) * | 2018-09-18 | 2019-01-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of ablation test circuit and breaker arcing contact ablation state test method |
| CN109765328A (en) * | 2019-01-15 | 2019-05-17 | 国网湖南省电力有限公司 | The analogue test platform and simulation experiment method of transformer fire sprawling behavior |
| CN110275095A (en) * | 2019-06-12 | 2019-09-24 | 国网浙江省电力有限公司电力科学研究院 | Transformer insulated accelerated deterioration simulator and method |
| CN110308357A (en) * | 2019-08-07 | 2019-10-08 | 中车株洲电机有限公司 | A kind of high low temperature cycles test device |
| CN110389045A (en) * | 2019-07-29 | 2019-10-29 | 应急管理部天津消防研究所 | Device for heating transformer oil and heating means for the test of large-scale entity fire |
| CN110501588A (en) * | 2019-08-12 | 2019-11-26 | 国网山东综合能源服务有限公司 | Natural esters Insulation Oil Transformer electric heating combines fault simulation experiment porch and method |
-
2019
- 2019-12-04 CN CN201911226231.3A patent/CN110933792B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219909A (en) * | 1983-05-30 | 1984-12-11 | Mitsubishi Electric Corp | Life examination device for oil-immersed electric apparatus |
| CN1056928A (en) * | 1990-05-29 | 1991-12-11 | 特兰斯弗勒克斯集团有限公司 | Fluid heating |
| RU61975U1 (en) * | 2006-08-28 | 2007-03-10 | Открытое акционерное общество Специальное проектно-конструкторское и технологическое бюро по погружному электрооборудованию для бурения скважин и добычи нефти "Потенциал" (ОАО СКТБПЭ "Потенциал") | DEVICE FOR PROTECTING ELECTRONIC PRODUCTS FROM COOLING AND MOISTURE PREVENTION |
| CN102360758A (en) * | 2011-10-17 | 2012-02-22 | 兴文县僰力机电工程设备有限公司 | Drying device and drying method of transformer |
| CN102706526A (en) * | 2012-05-14 | 2012-10-03 | 中国电力科学研究院 | Anti-vibration test model and test method for power transformer and casing pipe |
| CN102903482A (en) * | 2012-09-29 | 2013-01-30 | 苏州华电电气股份有限公司 | Self-heating device for on-side transformer oil treatment |
| CN104517701A (en) * | 2013-09-27 | 2015-04-15 | 刁俊起 | Fire extinguishing device of transformer |
| KR20150077085A (en) * | 2013-12-27 | 2015-07-07 | 주식회사 효성 | Radiating apparatus for transformer |
| CN104297648A (en) * | 2014-10-17 | 2015-01-21 | 国网上海市电力公司 | Temperature and flow speed control device used for transformer oil insulation heat ageing test and test method thereof |
| CN204832438U (en) * | 2015-08-18 | 2015-12-02 | 国网江西省电力公司南昌供电分公司 | Transformer internal discharge trouble analogue test device based on signal acquisition discharges |
| CN105259482A (en) * | 2015-10-26 | 2016-01-20 | 西南交通大学 | Traction transformer layered oilpaper insulation dielectric response experiment system |
| KR20170078207A (en) * | 2015-12-29 | 2017-07-07 | 주식회사 케이디파워 | oil immersed transformer |
| CN106504879A (en) * | 2016-10-26 | 2017-03-15 | 国家电网公司 | A kind of oil-filled transformer with automatic heating device |
| CN107390064A (en) * | 2017-08-03 | 2017-11-24 | 中国电力科学研究院 | A kind of ageing test apparatus and application method of insulating oil or paper oil insulation |
| 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 |
| CN109254242A (en) * | 2018-09-18 | 2019-01-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of ablation test circuit and breaker arcing contact ablation state test method |
| CN109765328A (en) * | 2019-01-15 | 2019-05-17 | 国网湖南省电力有限公司 | The analogue test platform and simulation experiment method of transformer fire sprawling behavior |
| CN110275095A (en) * | 2019-06-12 | 2019-09-24 | 国网浙江省电力有限公司电力科学研究院 | Transformer insulated accelerated deterioration simulator and method |
| CN110389045A (en) * | 2019-07-29 | 2019-10-29 | 应急管理部天津消防研究所 | Device for heating transformer oil and heating means for the test of large-scale entity fire |
| CN110308357A (en) * | 2019-08-07 | 2019-10-08 | 中车株洲电机有限公司 | A kind of high low temperature cycles test device |
| CN110501588A (en) * | 2019-08-12 | 2019-11-26 | 国网山东综合能源服务有限公司 | Natural esters Insulation Oil Transformer electric heating combines fault simulation experiment porch and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121350A (en) * | 2020-08-12 | 2020-12-25 | 国网湖南省电力有限公司 | Environment-friendly transformer multi-fire-type simulation system |
| CN113960399A (en) * | 2021-10-27 | 2022-01-21 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Vacuum arc-extinguishing chamber test system for transformer on-load tap-changer and method thereof |
| CN114129933A (en) * | 2021-11-29 | 2022-03-04 | 国网山东省电力公司电力科学研究院 | Movable heating device and method for transformer oil in fire test of true transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110933792B (en) | 2022-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110933792B (en) | Transformer fire-extinguishing true test insulating oil heating system and method | |
| US11118845B2 (en) | Two-layer variable-diameter packed bed heat storage apparatus and heat storage ball preparation method | |
| CN102832424B (en) | Temperature control system for battery packs | |
| CN202548016U (en) | Testing machine | |
| CN109723586B (en) | Solid biofuel supply device for internal combustion engine at normal temperature and normal pressure | |
| CN110600168B (en) | Liquid cooling charging cable and cooling system applied to electric automobile rapid charging | |
| CN202772242U (en) | Battery pack temperature regulation and control system | |
| CN104235929A (en) | Heating system using solar energy and heat stored by fused salt | |
| CN101865450A (en) | Offshore platform thermal recovery fuel oil or fuel gas steam injection boiler | |
| CN206562085U (en) | A kind of heating system of the hot generating fused salt storage tank of solar energy high temperature | |
| CN105115336A (en) | Molten salt thermal storage heater | |
| CN206903783U (en) | Container-type power generation box | |
| CN107199898A (en) | A kind of cell-heated type charging pile and its charge control method | |
| CN2800045Y (en) | Gas or electric heating furnace for oil well pipe | |
| CN210014418U (en) | Intermittent exhaust type high-temperature heat storage system | |
| CN2708175Y (en) | Gas and electricity dual-purpose oil well pipeline heating furnace | |
| CN207080302U (en) | A kind of heating fuel tank | |
| CN207747762U (en) | Charging pile | |
| CN204063230U (en) | A kind of heating system of solar molten salt heat accumulation | |
| CN206973673U (en) | Fused salt accumulation of heat heating equipment | |
| CN101666425B (en) | Liquid carbon five gasification device | |
| CN111457591A (en) | Heat storage device with heating rod and heating method | |
| Padovan et al. | Model development and validation for a tank in tank water thermal storage for domestic application | |
| CN216815146U (en) | Waste heat recovery phase change energy storage vehicle-mounted energy supply system | |
| CN207726060U (en) | The preheating device of large-scale storage tank bottom plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |