WO2013133734A1 - Method for explosion protection of an oil-filled transformer and oil-filled transformer with explosion protection - Google Patents
Method for explosion protection of an oil-filled transformer and oil-filled transformer with explosion protection Download PDFInfo
- Publication number
- WO2013133734A1 WO2013133734A1 PCT/RU2012/000862 RU2012000862W WO2013133734A1 WO 2013133734 A1 WO2013133734 A1 WO 2013133734A1 RU 2012000862 W RU2012000862 W RU 2012000862W WO 2013133734 A1 WO2013133734 A1 WO 2013133734A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oil
- tank
- transformer
- pipeline
- sulphur hexafluoride
- Prior art date
Links
- 238000004880 explosion Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 9
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 9
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract 11
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract 7
- 238000005086 pumping Methods 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 3
- 229910018503 SF6 Inorganic materials 0.000 claims 5
- 239000002826 coolant Substances 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 238000004870 electrical engineering Methods 0.000 abstract description 2
- 239000011369 resultant mixture Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 16
- 238000013016 damping Methods 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
-
- 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
- H01F27/20—Cooling by special gases or non-ambient air
Definitions
- damper layer allows to reduce the loading of the walls of the tank by the blast wave, to make it smoother, to prevent vibration of the walls.
- the disadvantage of the prototype is low reliability and short service life of explosion protection. This disadvantage is due to the fact that the use of foam rubber or polyurethane foam, which is sufficiently soft, can lead to premature compression of the damper layer, as well as the possibility of damage to the packages of the damper layer from the oil-resistant film during long-term operation.
- the objective of the invention is to remedy this drawback. ->
- the technical result of the invention is to increase the reliability and service life of explosion protection.
- the subject of the invention is a method of protecting an oil-filled transformer from explosion, which consists in injecting SF6 gas into the oil filling the transformer tank and pumping the resulting mixture of oil and SF6 gas from the upper part of the transformer tank to the lower one through an external pipeline with a speed equal to or faster than the free ascent rate SF6 gas bubbles dissolved in oil.
- the subject of the invention is also an explosion-proof oil-filled transformer, containing a tank filled with a cooler, in which the active part of the transformer is located, characterized in that the upper part of the tank is made tapering and communicates with its lower part through a pipeline with a pump located outside the tank, while a mixture of oil and SF6 gas was used as a cooler, and the pump is capable of pumping this mixture from the top of the tank to the bottom with a speed equal to or greater than the speed of free surfacing of SF6 gas bubbles dissolved in oil.
- FIG. 1 shows a tank 1 filled with a cooler, in which the active part 2 of the transformer is located.
- the upper part 3 of the tank 1 is made tapering up. It is in communication with the lower part 4 of the tank 1 through a pipe 5 provided with a pump 6.
- the pipe 5 is located outside the tank 1.
- a cooler of the active part filling the tank 1 a mixture of oil and SF6 gas, previously introduced into the transformer oil, partially filling the tank 1, is used.
- Pump 6 pumps the mixture of oil and gas from the upper part 3 of the tank 1 to its lower part 4 at a speed equal to or greater than the speed of free floating of the gas bubbles dissolved in the oil.
- the pipeline 5 is equipped with a dispensing injector 7 located in the lower part 4 of the tank 1, and can also be equipped with a heat exchanger, which in FIG. 1 is not shown.
- Explosion protection in the device implementing the proposed method is provided as follows.
- the tank 1 is partially filled with transformer oil, then SF6 is introduced into the oil, completely filling the interior of the tank 1 with a cooling mixture of oil and SF6.
- the pump 6 continuously pumps the cooling mixture through the pipeline 5 from the upper part 3 to the lower part 4 of the tank 1.
- the power of the pump 6 provides such a speed of movement of the cooling mixture in the pipeline 5, which allows for uniform distribution of SF6 gas in the form of bubbles in the oil volume and to avoid accumulation in the upper part 3 of the pipeline 5 of SF6 gas, brought by the bubbles dissolved in the oil, freely floating up from the lower part 4 of the tank 1 to its upper part.
- the narrowing of the top of the tank 3] also contributes to this.
- the pipe 5 is equipped with a dispensing injector 7.
- the injector 7 can be made, for example, in the form of a box covering the lower part 4 of the tank 5 from the outside and communicating with the internal cavity of the tank 1 near holes of small (less than 1 cm) diameter.
- the high reliability of the proposed explosion protection is ensured by the use of SF6 bubbles uniformly distributed in the volume of oil, which, unlike the damping packages of the prototype, are not subject to aging as a blast wave damper.
- the indicated properties of the cooling mixture are ensured by its pumping, for which purpose reliable and easily accessible structural elements are used.
- the cooling mixture of oil and SF6 gas during its pumping can be further cooled by passing pipeline 5 through a heat exchanger system.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention relates to the field of electrical engineering and can be used in high-voltage power transformers. The technical result consists in increasing the reliability and service life of explosion protection. Sulphur hexafluoride is introduced into the oil used for filling the tank (1) of the transformer, and the resultant mixture of oil and sulphur hexafluoride is pumped out of the upper part (3) of the tank (1) into the lower part (4) through an external pipeline (5). An active part (2) of the transformer is arranged in the coolant-filled tank (1). The upper part (3) of the tank (1) tapers towards the top. Said upper part is in communication with the lower part (4) of the tank (1) via the pipeline, which is equipped with a pump (6). The pipeline (5) is arranged outside the tank (1). The coolant used for the active part is a mixture of oil and sulphur hexafluoride, with the sulphur hexafluoride having been introduced in advance into the transformer oil which partially fills the tank (1). The pump (6) pumps the mixture of oil and sulphur hexafluoride out of the upper part (3) of the tank (1) into the lower part (4) thereof at a rate equal to or greater than the rate at which the bubbles of sulphur hexafluoride dissolved in the oil rise freely. The pipeline (5) can be equipped with a distributing injector (7) arranged in the lower part (4) of the tank (1), as well as with a cooling heat exchanger.
Description
Способ защиты маслонаполненного трансформатора от взрыва и маслонаполненный трансформатор с защитой от взрыва Method of explosion protection of oil-filled transformer and explosion-proof oil-filled transformer
Область техники Technical field
Изобретение относится к области электротехники и может быть использовано в высоковольтных силовых трансформаторах. The invention relates to the field of electrical engineering and can be used in high voltage power transformers.
Уровень техники State of the art
При коротком замыкании в активной части маслонаполненного трансформатора возникает электрическая дуга. Высокая температура дуги разлагает трансформаторное масло с образованием большого количества газов. В основном это ацетилен и водород, который при высокой температуре и контакте с воздухом самовоспламеняется, что приводит к пожарам и тяжёлым авариям. Процесс развивается в течение нескольких миллисекунд, при этом давление в баке резко возрастает, превышая критические параметры. Устранение последствий таких аварий требует значительных капиталовложений для восстановления оборудования. Поэтому высоковольтные силовые маслонаполненные трансформаторы снабжают средствами защиты от взрыва. When a short circuit occurs in the active part of the oil-filled transformer, an electric arc arises. The high temperature of the arc decomposes transformer oil to form a large amount of gas. Basically, it is acetylene and hydrogen, which self-ignites at high temperature and contact with air, which leads to fires and serious accidents. The process develops within a few milliseconds, while the pressure in the tank rises sharply, exceeding critical parameters. Dealing with the consequences of such accidents requires a significant investment in equipment recovery. Therefore, high-voltage power oil-filled transformers are equipped with explosion protection.
Известен способ обеспечения взрыво- и пожаробезопасности трансформаторов путем использования элегаза в качестве охладителя активной части вместо трансформаторного масла. [Статья «Пожаробезопасные трансформаторы с элегазовой изоляцией» http://leg.co.ua/transformatory/praktika/pozharobezopasnye-transformatory-s- elegazovoy-izolyaciey.html]. A known method of ensuring explosion and fire safety of transformers by using SF6 gas as a cooler of the active part instead of transformer oil. [Article "Fireproof Transformers with Gas Insulation" http://leg.co.ua/transformatory/praktika/pozharobezopasnye-transformatory-s- elegazovoy-izolyaciey.html].
Возникновение взрыва в элегазовых трансформаторах не приводит к их полному разрушению, а выброс в атмосферу элегаза, в отличие от масла, не приводит к возникновению пожара - в этом их основное преимущество
по сравнению с масляными трансформаторами. Однако, масляные трансформаторы стоят дешевле, причем эта разница в цене с повышением напряжения становится существенной. Недостатком элегазовых трансформаторов также является меньшее значение тепловой постоянной времени по сравнению с маслонаполненными трансформаторами, следствием этого является меньшая допустимая длительность перегрузок элегазовых трансформаторов. The occurrence of an explosion in SF6 transformers does not lead to their complete destruction, and the release of SF6 into the atmosphere, unlike oil, does not cause a fire - this is their main advantage compared to oil transformers. However, oil transformers are cheaper, and this difference in price with increasing voltage becomes significant. The disadvantage of SF6 transformers is also a lower value of the thermal time constant in comparison with oil-filled transformers, which results in a shorter duration of overloading of SF6 transformers.
Известны, выбранные в качестве прототипов, способ защиты от взрыва и конструкция защищенного от взрыва маслонаполненного трансформатора, использующие демпферный принцип гашения гидродинамической волны, возникающей в его баке при КЗ. [Мишуев А. В. и др. Демпферная система защиты трансформаторов и высоковольтного маслонаполненного электрооборудования от взрыва и пожара при коротком замыкании, журнал "Электро" 2009г. Ν» 2 стр. 23-26; патент RU2334332]. Согласно прототипам защита от взрыва обеспечивается тем, что на внутренней поверхности стенки трансформаторного бака равномерно размещается демпферный слой в виде пакетов из маслостойкой пленки, заполненных упругим материалом типа поролона или пенополиуретана. Known, selected as prototypes, a method of protection against explosion and the design of the explosion-protected oil-filled transformer, using the damper principle of damping the hydrodynamic wave that occurs in its tank during short circuit. [Mishuev A.V. et al. Damper protection system for transformers and high-voltage oil-filled electrical equipment from explosion and fire during short circuits, Electro magazine 2009. Ν " 2 pp. 23-26; Patent RU2334332]. According to the prototypes, explosion protection is provided by the fact that on the inner surface of the wall of the transformer tank the damper layer is uniformly placed in the form of oil-resistant film packets filled with an elastic material such as foam or polyurethane foam.
Наличие демпферного слоя позволяет снизить нагружение стенок бака взрывной волной, сделать его более плавным, предотвратить вибрацию стенок. The presence of the damper layer allows to reduce the loading of the walls of the tank by the blast wave, to make it smoother, to prevent vibration of the walls.
Недостаток прототипа - низкая надежность и малый срок службы средств защиты от взрыва. Это недостаток обусловлен тем, что применение поролона или пенополиуретана - достаточно мягких материалов, может привести к преждевременному сжатию демпферного слоя, а также тем, что при длительной эксплуатации возможны повреждения пакетов демпферного слоя из маслостойкой пленки. The disadvantage of the prototype is low reliability and short service life of explosion protection. This disadvantage is due to the fact that the use of foam rubber or polyurethane foam, which is sufficiently soft, can lead to premature compression of the damper layer, as well as the possibility of damage to the packages of the damper layer from the oil-resistant film during long-term operation.
Задача изобретения - устранение указанного недостатка.
-> The objective of the invention is to remedy this drawback. ->
J J
Раскрытие изобретения Disclosure of invention
Технический результат изобретения состоит в повышении надежности и срока службы защиты от взрыва. The technical result of the invention is to increase the reliability and service life of explosion protection.
Предметом изобретения является способ защиты маслонаполненного трансформатора от взрыва, заключающийся в том, что вводят элегаз в масло, заполняющее бак трансформатора, и перекачивают полученную смесь масла и элегаза из верхней части бака трансформатора в нижнюю через наружный трубопровод со скоростью, равной или превышающей скорость свободного всплытия пузырьков элегаза, растворенных в масле. The subject of the invention is a method of protecting an oil-filled transformer from explosion, which consists in injecting SF6 gas into the oil filling the transformer tank and pumping the resulting mixture of oil and SF6 gas from the upper part of the transformer tank to the lower one through an external pipeline with a speed equal to or faster than the free ascent rate SF6 gas bubbles dissolved in oil.
Предметом изобретения также является маслонаполненный трансформатор с защитой от взрыва, содержащий заполненный охладителем бак, в котором размещена активная часть трансформатора, отличающийся тем, что верхняя часть бака выполнена сужающейся и сообщена с его нижней частью через трубопровод с насосом, расположенный снаружи бака, при этом в качестве охладителя применена смесь масла и элегаза, а насос выполнен с возможностью перекачки указанной смеси из верхней части бака в нижнюю со скоростью, равной или превышающей скорость свободного всплытия растворенных в масле пузырьков элегаза. The subject of the invention is also an explosion-proof oil-filled transformer, containing a tank filled with a cooler, in which the active part of the transformer is located, characterized in that the upper part of the tank is made tapering and communicates with its lower part through a pipeline with a pump located outside the tank, while a mixture of oil and SF6 gas was used as a cooler, and the pump is capable of pumping this mixture from the top of the tank to the bottom with a speed equal to or greater than the speed of free surfacing of SF6 gas bubbles dissolved in oil.
Развития изобретения предусматривают, что трубопровод может быть снабжен раздаточным инжектором, размещенным в нижней части бака, а также охлаждающим теплообменником. The development of the invention provides that the pipeline can be equipped with a dispensing injector located in the lower part of the tank, as well as a cooling heat exchanger.
Осуществление изобретения с учетом его развитий The implementation of the invention in view of its developments
На фиг. 1 представлен трансформатор с защитой от взрыва, выполненной по предлагаемому способу. In FIG. 1 shows a transformer with explosion protection made by the proposed method.
На фиг. 1 показаны заполненный охладителем бак 1 , в котором размещена активная часть 2 трансформатора. Верхняя часть 3 бака 1 выполнена сужающейся кверху. Она сообщена с нижней частью 4 бака 1 через трубопровод 5, снабженный насосом 6. Трубопровод 5 расположен
снаружи бака 1 . В качестве охладителя активной части, заполняющего бак 1 , применена смесь масла и элегаза, предварительно введенного в трансформаторное масло, частично заполняющее бак 1 . Насос 6 обеспечивает перекачку смеси масла и элегаза из верхней части 3 бака 1 в его нижнюю часть 4 со скоростью, равной или превышающей скорость свободного всплытия растворенных в масле пузырьков элегаза. Трубопровод 5 снабжен раздаточным инжектором 7, размещенным в нижней части 4 бака 1 , а также может быть снабжен олаждающим теплообменником, который на фиг. 1 не показан. In FIG. 1 shows a tank 1 filled with a cooler, in which the active part 2 of the transformer is located. The upper part 3 of the tank 1 is made tapering up. It is in communication with the lower part 4 of the tank 1 through a pipe 5 provided with a pump 6. The pipe 5 is located outside the tank 1. As a cooler of the active part filling the tank 1, a mixture of oil and SF6 gas, previously introduced into the transformer oil, partially filling the tank 1, is used. Pump 6 pumps the mixture of oil and gas from the upper part 3 of the tank 1 to its lower part 4 at a speed equal to or greater than the speed of free floating of the gas bubbles dissolved in the oil. The pipeline 5 is equipped with a dispensing injector 7 located in the lower part 4 of the tank 1, and can also be equipped with a heat exchanger, which in FIG. 1 is not shown.
Защита от взрыва в устройстве, осуществляющем предлагаемый способ, обеспечивается следующим образом. Explosion protection in the device implementing the proposed method is provided as follows.
Бак 1 частично заполняют трансформаторным маслом, затем в масло вводят элегаз, полностью заполняя внутреннее пространство бака 1 охлаждающей смесью масла и элегаза. Насос 6 непрерывно перекачивает по трубопроводу 5 охлаждающую смесь из верхней части 3 в нижнюю часть 4 бака 1. Мощность насоса 6 обеспечивает такую скорость движения охлаждающей смеси в трубопроводе 5, которая позволяет обеспечить равномерное распределение элегаза в виде пузырьков в объеме масла и избежать скапливания в верхней части 3 трубопровода 5 элегаза, приносимого растворенными в масле пузырьками, свободно всплывающими из нижней части 4 бака 1 в его верхнюю часть. Сужение верхней части 3 бака ] также способствует этому. Для ускорения ввода охлаждающей смеси, перекачиваемой по трубопроводу 5 в нижнюю часть 4 бака 1 , трубопровод 5 снабжен раздаточным инжектором 7. Инжектор 7 может быть выполнен, например, в виде короба, охватывающего нижнюю часть 4 бака 5 снаружи и сообщающегося с внутренней полостью бака 1 рядом отверстий малого (менее 1 см) диаметра. The tank 1 is partially filled with transformer oil, then SF6 is introduced into the oil, completely filling the interior of the tank 1 with a cooling mixture of oil and SF6. The pump 6 continuously pumps the cooling mixture through the pipeline 5 from the upper part 3 to the lower part 4 of the tank 1. The power of the pump 6 provides such a speed of movement of the cooling mixture in the pipeline 5, which allows for uniform distribution of SF6 gas in the form of bubbles in the oil volume and to avoid accumulation in the upper part 3 of the pipeline 5 of SF6 gas, brought by the bubbles dissolved in the oil, freely floating up from the lower part 4 of the tank 1 to its upper part. The narrowing of the top of the tank 3] also contributes to this. To accelerate the introduction of the cooling mixture, pumped through the pipe 5 to the lower part 4 of the tank 1, the pipe 5 is equipped with a dispensing injector 7. The injector 7 can be made, for example, in the form of a box covering the lower part 4 of the tank 5 from the outside and communicating with the internal cavity of the tank 1 near holes of small (less than 1 cm) diameter.
Использование в качестве охлаждающей жидкости смеси масла и равномерно распределенных в его объеме пузырьков элегаза придает
охладителю демпфирующую способность. Пузырьки элегаза, равномерно распределенные в объеме масла, сжимаясь под действием гидродинамической взрывной волны, поглощают часть энергии взрыва и увеличивают объем, предоставляемый для расширения масла. В результате этого снижается ударное воздействие взрыва на стенки бака и, тем самым, предотвращается его разрыв. The use of a mixture of oil and evenly distributed SF6 gas bubbles as a coolant gives cooler damping ability. SF6 gas bubbles uniformly distributed in the oil volume, compressed under the action of a hydrodynamic blast wave, absorb part of the explosion energy and increase the volume provided for oil expansion. As a result, the impact of the explosion on the walls of the tank is reduced and, thereby, its rupture is prevented.
Высокая надежность предлагаемой защиты от взрыва обеспечивается за счет использования в качестве демпфера взрывной волны пузырьков элегаза, равномерно распределенных в объеме масла, которые в отличие от демпфирующих пакетов прототипа, не подвержены старению. Указанные свойства охлаждающей смеси обеспечиваются ее перекачиванием, для чего используются надежные и легко доступные для эксплуатационного обслуживания конструктивные элементы. The high reliability of the proposed explosion protection is ensured by the use of SF6 bubbles uniformly distributed in the volume of oil, which, unlike the damping packages of the prototype, are not subject to aging as a blast wave damper. The indicated properties of the cooling mixture are ensured by its pumping, for which purpose reliable and easily accessible structural elements are used.
При необходимости, охлаждающую смесь масла и элегаза при ее перекачке можно дополнительно охлаждать, пропуская трубопровод 5 через систему теплообменников.
If necessary, the cooling mixture of oil and SF6 gas during its pumping can be further cooled by passing pipeline 5 through a heat exchanger system.
Claims
1. Способ защиты маслонаполненного трансформатора от взрыва, заключающийся в том, что вводят элегаз в масло, заполняющее бак трансформатора, и перекачивают полученную смесь масла и элегаза из верхней части бака трансформатора в нижнюю через наружный трубопровод со скоростью, равной или превышающей скорость свободного всплытия пузырьков элегаза, растворенных в масле. 1. A method of protecting an oil-filled transformer from explosion, which consists in injecting SF6 into the oil filling the transformer tank and pumping the resulting mixture of oil and SF6 from the top of the transformer tank to the bottom through the outer pipe at a speed equal to or greater than the speed of free floating bubbles SF6 dissolved in oil.
2. Маслонаполненный трансформатор с защитой от взрыва, содержащий заполненный охладителем бак, в котором размещена активная часть трансформатора, отличающийся тем, что верхняя часть бака выполнена сужающейся и сообщена с его нижней частью через трубопровод с насосом, расположенный снаружи бака, при этом в качестве охладителя применена смесь масла и элегаза, а насос выполнен с возможностью перекачки указанной смеси из верхней части бака в нижнюю со скоростью, равной или превышающей скорость свободного всплытия растворенных в масле пузырьков элегаза. 2. An oil-filled transformer with explosion protection, containing a tank filled with cooler, in which the active part of the transformer is located, characterized in that the upper part of the tank is made tapering and communicates with its lower part through a pipeline with a pump located outside the tank, while as a cooler a mixture of oil and SF6 gas was used, and the pump is capable of pumping the specified mixture from the top of the tank to the bottom with a speed equal to or greater than the speed of free ascent of the bubble dissolved in the oil Cove sulfur hexafluoride.
3. Трансформатор по п. 2, отличающийся тем, что трубопровод снабжен раздаточным инжектором, размещенным в нижней части бака. 3. The transformer according to claim 2, characterized in that the pipeline is equipped with a dispensing injector located at the bottom of the tank.
4. Трансформатор по п. 2, отличающийся тем, что трубопровод снабжен охлаждающим теплообменником. 4. The transformer according to claim 2, characterized in that the pipeline is equipped with a cooling heat exchanger.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2012108653/07A RU2516307C2 (en) | 2012-03-07 | 2012-03-07 | Method for protection of oil-filled transformer from explosion and explosion-proof oil-filled transformer |
| RU2012108653 | 2012-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013133734A1 true WO2013133734A1 (en) | 2013-09-12 |
Family
ID=49117101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2012/000862 WO2013133734A1 (en) | 2012-03-07 | 2012-10-23 | Method for explosion protection of an oil-filled transformer and oil-filled transformer with explosion protection |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2516307C2 (en) |
| WO (1) | WO2013133734A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512962A (en) * | 2013-09-23 | 2014-01-15 | 国家电网公司 | Simulation system and method for chromatographic on-line detection of transformer oil gas |
| CN104867669A (en) * | 2015-05-14 | 2015-08-26 | 国家电网公司 | SF 6 sealing pot protective device and using method for electric high-pressure oil-filling mutual inductor |
| KR101828733B1 (en) | 2014-04-23 | 2018-03-22 | 차이나 아카데미 오브 텔레커뮤니케이션즈 테크놀로지 | Method, system and device for measuring channel state information |
| CN113410025A (en) * | 2021-06-09 | 2021-09-17 | 江苏悦成变压器有限公司 | Oil-immersed transformer with explosion-proof protection architecture |
| CN115863006A (en) * | 2023-02-28 | 2023-03-28 | 广东南桂起重机械有限公司 | Energy-saving transformer oil tank with small oil consumption |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU832607A1 (en) * | 1979-02-02 | 1981-05-23 | Харьковский Институт Механизациии Электрификации Сельского Хозяйства | Electric apparatus for cooling device |
| US4296003A (en) * | 1980-06-27 | 1981-10-20 | Electric Power Research Institute, Inc. | Atomized dielectric fluid composition with high electrical strength |
| JPS5720416A (en) * | 1980-07-14 | 1982-02-02 | Toshiba Corp | Oil-immersed electric equipment |
| JPS6070713A (en) * | 1983-09-28 | 1985-04-22 | Toshiba Corp | Stationary induction apparatus |
| JPS60246609A (en) * | 1984-05-22 | 1985-12-06 | Fuji Electric Co Ltd | Gas insulated stationary induction appliance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1099366A (en) * | 1963-11-04 | 1968-01-17 | Marston Excelsior Ltd | A method of cooling transformers and apparatus for performing the method |
-
2012
- 2012-03-07 RU RU2012108653/07A patent/RU2516307C2/en active
- 2012-10-23 WO PCT/RU2012/000862 patent/WO2013133734A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU832607A1 (en) * | 1979-02-02 | 1981-05-23 | Харьковский Институт Механизациии Электрификации Сельского Хозяйства | Electric apparatus for cooling device |
| US4296003A (en) * | 1980-06-27 | 1981-10-20 | Electric Power Research Institute, Inc. | Atomized dielectric fluid composition with high electrical strength |
| JPS5720416A (en) * | 1980-07-14 | 1982-02-02 | Toshiba Corp | Oil-immersed electric equipment |
| JPS6070713A (en) * | 1983-09-28 | 1985-04-22 | Toshiba Corp | Stationary induction apparatus |
| JPS60246609A (en) * | 1984-05-22 | 1985-12-06 | Fuji Electric Co Ltd | Gas insulated stationary induction appliance |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512962A (en) * | 2013-09-23 | 2014-01-15 | 国家电网公司 | Simulation system and method for chromatographic on-line detection of transformer oil gas |
| KR101828733B1 (en) | 2014-04-23 | 2018-03-22 | 차이나 아카데미 오브 텔레커뮤니케이션즈 테크놀로지 | Method, system and device for measuring channel state information |
| CN104867669A (en) * | 2015-05-14 | 2015-08-26 | 国家电网公司 | SF 6 sealing pot protective device and using method for electric high-pressure oil-filling mutual inductor |
| CN113410025A (en) * | 2021-06-09 | 2021-09-17 | 江苏悦成变压器有限公司 | Oil-immersed transformer with explosion-proof protection architecture |
| CN115863006A (en) * | 2023-02-28 | 2023-03-28 | 广东南桂起重机械有限公司 | Energy-saving transformer oil tank with small oil consumption |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2012108653A (en) | 2013-11-20 |
| RU2516307C2 (en) | 2014-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2516307C2 (en) | Method for protection of oil-filled transformer from explosion and explosion-proof oil-filled transformer | |
| JP5416133B2 (en) | System and method for preventing and protecting OLTC from fire and / or preventing and protecting transformer from explosion | |
| US9258917B2 (en) | Gas insulated electrical equipment | |
| CN104218194B (en) | A kind of lithium battery with fireproof anti-explosion device and the electric car using the battery | |
| Abi-Samra et al. | Power transformer tank rupture and mitigation—A summary of current state of practice and knowledge by the task force of IEEE power transformer subcommittee | |
| CN115621845A (en) | Liquid supplementing and strong sealing liquid-electric effect arc extinguishing device and arc extinguishing method thereof | |
| CN103682188A (en) | Flame-retardant explosion-proof battery pack | |
| CN204011530U (en) | A kind of electric motor car that there is the lithium battery of fireproof anti-explosion device and apply this battery | |
| EP2135259A2 (en) | Insulator material and method for manufacturing thereof | |
| CA2947460C (en) | Fault-tolerant power transformer design and method of fabrication | |
| Dastous et al. | Estimating overpressures in pole-type distribution transformers. II. Prediction tools | |
| RU120508U1 (en) | OIL-FILLED TRANSFORMER WITH EXPLOSION PROTECTION | |
| CN201122474Y (en) | Flame-proof anti-explosion protector for surge | |
| KR20100084086A (en) | Device for preventing the explosion of oil-tank using in transformer | |
| CN205248064U (en) | Sulfur hexafluoride gas -insulated transformer | |
| KR20160027659A (en) | Explosion proof type termination connection box | |
| CN110993269B (en) | A method for releasing the self-explosion pressure of an oil-immersed mutual inductor expander | |
| RU118114U1 (en) | POWER TRANSFORMER EXPLOSION PREVENTION DEVICE | |
| Chen et al. | Balance design concept for ultra-high voltage transformer against arc fault explosion and its realization | |
| Darian et al. | Testing of models of explosion protection system for highvoltage oil-filled electrical equipment | |
| CN2472323Y (en) | Gas Insulated Capacitive Voltage Transformer | |
| Xue et al. | Numerical Investigation of Transformer Pressure Relief Valve Operation Characteristics | |
| KR101029294B1 (en) | Small high voltage transformer | |
| CN207781523U (en) | A kind of melt visual type fuse for high-tension apparatus | |
| US6271470B1 (en) | Oil filled power bushing with piston |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12870898 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 12870898 Country of ref document: EP Kind code of ref document: A1 |