EP3494583A1 - Elektrisches gerät mit unterschiedlich stark gekühlten kapselungsräumen - Google Patents
Elektrisches gerät mit unterschiedlich stark gekühlten kapselungsräumenInfo
- Publication number
- EP3494583A1 EP3494583A1 EP17767832.3A EP17767832A EP3494583A1 EP 3494583 A1 EP3494583 A1 EP 3494583A1 EP 17767832 A EP17767832 A EP 17767832A EP 3494583 A1 EP3494583 A1 EP 3494583A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- electrical device
- insulating fluid
- temperature
- barrier system
- 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.)
- Pending
Links
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
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- 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
- H01F27/02—Casings
- H01F27/025—Constructional details relating to 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
- H01F27/10—Liquid 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/322—Insulating of coils, windings, or parts thereof the insulation forming channels for circulation of the fluid
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
Definitions
- the invention relates to an electrical device for connection to a high-voltage network with a vessel which is filled with an insulating lierfluid, arranged in the vessel active part having a magnetizable core and partial windings for generating a magnetic field in the core, and with ei ⁇ ner cooling device for cooling the insulating fluid.
- transformers or chokes which are connected to a high-voltage network each have a vessel, which is usually filled with a mineral insulating oil as insulating fluid.
- a transformer an undervoltage and a high voltage winding are arranged in the vessel. Both windings are inductively coupled to each other via a magnetizable core.
- the insulating fluid is used to insulate the windings but also to cool the transformer.
- the insulating fluid heated during operation is conducted to dissipate the heat via a cooling device attached to the outside of the vessel. The cooling is set so that a maximum temperature of the insulating fluid is not exceeded, as otherwise the solid insulation of the transformer could be damaged.
- insulating fluids such as ester or silicone oils
- This ⁇ al ternatives Isolierfluide ensure a higher reliability Brandsi ⁇ and are also biodegradable.
- An improved Environmental compatibility of insulating fluids is particularly required for off-shore applications. Due to the improved thermal stability of these alternative insulating fluids, the transformer can be operated at higher temperatures. In this connection reference is made to standard IEEE 1276 (1997).
- the object of the invention is therefore to provide an electrical device of the type mentioned, which can be operated at higher temperatures, but at the same time remains inexpensive.
- the invention solves this problem by at least one
- encapsulated winding spaces which are referred to in the following encapsulation spaces, at least partially limited, in each of which at least one sub-winding is arranged ⁇
- a barrier system in interaction with the correspondingly designed cooling device, ensures that at least two partial windings can be operated in different temperature sections, which are designated here as encapsulation room temperatures.
- the barrier system provides other words that have the Kapselungs Congress isolator and winding different temperatures ⁇ .
- the Kapselungsraumtemperatur ie the temperature range of the winding part and / or the isolator in the JE . . Kapselungsraum is expediently ⁇ is turned so that a predetermined this Kapselungsraum ma ⁇ ximum operating temperature is not exceeded. In this way it is possible to use different insulating materials in the encapsulation spaces.
- the partial winding which is arranged in an encapsulation space in which sets a higher Kapselungsraumtemperatur during normal operation of the electrical device, be designed Isolierstoffarm.
- the use of net conductor windings is possible.
- Copper enamel wires coated with various insulating lacquers that can withstand even high temperatures are available on the market. This also applies, for example, to a wire with a coating of Pyre-ML-polyimide, which is thermally stable up to 220 ° C. Due to the small thickness of its lacquer layer a good heat transfer of the wire is guaranteed to the insulating fluid.
- partial windings which are arranged in an encapsulation space in which the insulating fluid has a lower encapsulation space temperature, are expediently equipped with the customary conventional, that is, not high-temperature-resistant, partial winding isolations or barrier systems.
- the material of the barrier system may be different from encapsulation space to encapsulation space.
- the encapsulation spaces are interconnected within the scope of the invention so that a hydraulic coupling is provided between them.
- the drive of the flow of the insulating fluid preferably takes place via a pump (OD cooling).
- the barrier system expediently guides the insulating fluid through the encapsulation spaces one after the other or in other words in succession.
- the cooled and therefore cold insulating fluid thus flows first into the first encapsulation space and there ensures the cooling of the partial winding arranged there.
- the insulating fluid is heated and thus passes into the subsequent so in the flow direction second encapsulation chamber.
- the insulating fluid flows from the second into the third encapsulation space and so on. In each encapsulation space, the insulating fluid heats up a little so that the encapsulation space temperature rises. In the last encapsulation chamber, the insulating fluid therefore has the highest encapsulation space temperature.
- each Kapse ⁇ ment space is thus connected to a further encapsulation space, so that in the flow direction of the insulating fluid in series series of encapsulation chambers is formed, wherein the first encapsulation of said row an inlet and the last encapsulation of said row an outlet opening formed.
- the encapsulation spaces thus form a hydraulic series connection.
- the insulating fluid enters the series-connected capsule chambers through the inlet opening and out through the outlet opening.
- the opening between two encapsulation spaces is called a connection opening here.
- the inlet opening and each connecting opening may be followed by a meandering channel system, which is formed by a labyrinth-like barrier system.
- the barrier system forms ⁇ advantageous way enough, in the area of the inlet and / or joint opening a labyrinth structure.
- the barrier system encloses a partial winding at least in sections.
- the barrier system is for example formed hohlzylind ⁇ driven part and this part arranged concentrically to at least one part winding.
- the barrier system consists, for example, in part of pressboard, paper or other pulp. According to this variant of the invention, the barrier system serves both as a thermal and as an electrical barrier.
- an electrically required portion of the barrier system as encapsulation or Isolationsabschitt is included in the formation of the Kapse- spaces. Therefore, essential components of the encapsulation are formed by the corresponding design of the cylindrical, disc-shaped and curved sections of the electrical barriers. For this purpose, the usual meandering horizontal barriers are closed to the outside, so that the inflow and outflow of the insulating fluid to the encapsulation chambers can only take place via defined inlet and outlet openings. Furthermore, in this embodiment, the encapsulation spaces are fluidically connected to one another by the gap between the cylindrical sections of the barriers forming the encapsulation being used as a return flow channel for the insulating fluid.
- the deflecting and guiding the flow of Isolierfluides is carried out at the ⁇ ser execution by appropriate design and connection of the curved portions of the barrier with each subsequent cylindrical and disc-shaped portions of the barrier system. In regions and transitions at which the number and the design of the electrically necessary barriers lierfluides does not allow a guiding and deflecting the flow of iso-, additional flow will be leading and the flow channel sealing curved zy ⁇ -cylindrical or disc-shaped barrier sections turned ⁇ added.
- the one component of the electrical ⁇ rule barrier arrangement form gaps between the barriers of Kapselungswort, which are used liquid in this embodiment as Strö ⁇ mung channels for the diversion and return of insulating, to increase the electrical resistance at least in part by further within the flow channels lying electrical barriers divided into narrower sub-column.
- the partial winding with the size ⁇ ren high voltage stress, ie with the higher proportion of insulating materials in the respective fluidically upstream, ie the region with the colder insulating fluid is now arranged.
- the first partial winding an underlay ⁇ voltage winding and a second winding part are a high-voltage winding.
- the two windings are concentric with one another and, for example, also arranged to a core section extending through the inner low-voltage winding.
- the electrical device ge ⁇ Häss this embodiment of the invention is a transformer with concentric upper and lower voltage windings as part windings.
- the partial windings are advantageously out as circumferentially closed cylindrical windings out ⁇ .
- the cooling device it is advantageous in the context of the invention for the cooling device to have a feed line which forms an outlet opening arranged, for example, below the first part-winding and in particular below the high-voltage winding.
- the cooled insulating fluid from the cooling device is fed via the supply line directly into the enclosure space of the first part winding, so that the first part winding is cooled more than the other part windings, which are arranged downstream of the first part winding in the flow direction of the insulating fluid.
- insulations of different insulating materials are arranged in the encapsulation spaces. Insulation means here both the insulation of the partial winding arranged in the respective encapsulation space and the barrier system itself.
- the partial windings for example, different conductor insulation.
- the first part winding is equipped with a high temperature insulation, while a second part winding and all other part windings have common insulation made of materials that are designed for lower temperatures.
- the materials of the barrier system may be different from encapsulation space to encapsulation space. Even within a Kapselungsraums may be installed in the context of the invention differing ⁇ ches insulating material.
- the partial windings are designed for different operating voltages, wherein the temperature-temperature of the insulating fluid and / or the part-winding in the Kapselungsraum in which a designed for higher voltage part winding is arranged during normal operation of erfindungsge ⁇ MAESSEN electrical device is smaller, as the temperature of the insulating fluid and / or the partial winding in the Kapse- space, in which a designed for a comparatively lower voltages partial winding is arranged.
- the designed for higher voltages partial winding has a size ⁇ ren Isolierstoffanteil than the part winding for lower voltages.
- the cooled insulating fluid is first supplied to the sub Wick ⁇ lung, a higher voltage, for example ranging from several hundred kilovolts falls on in normal operation from ⁇ .
- the cooling device has a control ⁇ unit with temperature sensors, wherein the control unit for each temperature range above a threshold value has and the cooling performance of the cooling device in dependence speed of the respective threshold.
- the respective threshold is determined, for example depending on the jeweili ⁇ gen class of insulating materials of the partial windings. He ⁇ reaches the temperature detected by the temperature sensor, the threshold, controls the control unit, for example, a circulation pump of the cooling device and thus increases their cooling capacity.
- each temperature range of a partial winding is equipped with a sensor.
- the temperature sensors are arranged to detect the temperature of a partial winding and / or to detect the temperature of the insulating fluid in a partial winding.
- the barrier system has at least one insulation section which is set up to control electric field strengths.
- the barrier system delimits mutually perpendicular vertical flow channels with opposite flow direction, wherein at least one of the vertical flow channels is arranged as a return channel between each part of a winding surrounding insulation sections.
- the cooled insulating fluid flows, for example, from bottom to top through the first vertical flow channel. His flow is thus caused by warming own movement of the
- Rectified insulating fluids are Rectified insulating fluids.
- a plurality of parallel flow channels can be horizontal or vertical channels.
- the insulating fluid can flow through adjacent flow channels in the same direction.
- the flow channels can be delimited by the insulation sections, or in other words by sections of the barrier system, which serve to electrically insulate the partial windings.
- the outputs staltung of the flow channels is possible in the invention in many ways.
- channels between the barriers which are not required for the targeted fluid flow, are closed by inserts in order to avoid bypass formation.
- the main flow of the insulating liquid takes place within the Kapse- spaces from bottom to top, so is caused by heating proper motion of the insulating liquid rectified. Outside the Kapselungssammlung the Isolierflüs ⁇ stechnik is diverted to a further insulation portion. In these areas without heat source, the flow takes place from top to bottom and then again in a further encapsulation chamber identical to the thermal motion of the insulating liquid to flow from bottom to top.
- a wall of the barrier system between mutually parallel vertical flow channels with opposite flow direction on a thermal insulation is, for example, compared to the remaining components of the barrier system increased wall thickness or a thermal see coating into consideration.
- the insulating materials are associated, for example, depending ⁇ wells different thermal classes.
- each temperature range equipped with different insulating materials is equipped with a thermal sensor for measuring the hotspot temperature of the respective temperature range.
- the sensors are connected to a control unit, wel ⁇ che the hot spot temperature for each temperature range ge disconnects monitored.
- any temperature range matched to the respective insulation materials used Schwellwer ⁇ te are assigned.
- the barrier system is designed such that cooling channels of the magnetic core are included in the forced flow of the insulating fluid.
- Temperature classes for the insulating components according to their thermal load.
- the Porteriso ⁇ lation is designed according to the hot spot temperature of the respective temperature range. Insulating components within the respective temperature range, which, however, maintain a certain distance from the hottest points of the respective partial winding can, if the corresponding Temperaurgradient permits, be carried out in a lower thermal class.
- gradations of thermal resistance may be provided, for example, in the following order:
- Wicklungstei- are preferred isolation procedure le Wicklungsaustechnische particular in the region of the inlet of the insulating liquid in the corresponding Wicklungsab arranged ⁇ cut.
- Partial windings which due to their geometry or technical design are not suitable for integration in the fluidic series connection described, can furthermore form separate concentrically arranged winding blocks.
- the operation at higher temperatures he ⁇ allows, with a costly conversion, for example, the insulating material-rich winding parts of a high-voltage winding ⁇ can be omitted on Hochtemperaturisolierwerkstoffe.
- a higher current density in the winding conductors and thus a significant reduction in size are possible.
- An increase in the temperature of the insulating fluid leads in the context of the invention to a significant increase in the temperature difference to the outer cooling medium such as air or water.
- the Effek ⁇ tivity of the cooling increases considerably, so that the electrical device according to the invention can be made more compact.
- the transformer 1 of the drawing shows an embodiment of the electrical device 1 according to the invention, which is designed as a transformer.
- the transformer 1 has an active part 2, which is formed from a core 3, a low-voltage winding 4 and a high-voltage winding 5.
- the Un Tension voltage winding 4 and the high-voltage winding 5 are arranged concentrically to a leg 6 of the core 3, where ⁇ is illustrated in Figure 1, only one side of the windings. It should be noted, however, that both the lower-voltage winding and the upper-voltage winding are circumferentially closed as partial windings, that is to say run around the leg 6 in a wreath-like manner.
- the active part 2 is arranged within a vessel 7, which is filled with an insulating fluid 8, in theticiansbei ⁇ play shown a vegetable ester.
- a cooling device 9 is attached, which has aderegis ⁇ ter 10, a circulating pump 11, a supply line 12 and a return line 13.
- the transformer 1 is provided for connection to a high voltage network, so that during operation of the transformer, the Oberwoodswick ⁇ ment 5 is at a high voltage potential, that is acted upon by a voltage above 50 kV.
- a barrier system 14 which encloses both the low-voltage winding 4 and the high-voltage winding 5 each with one of its insulation sections almost completely.
- the barrier ⁇ system 14 is at least partially made of pressboard or other material based on cellulose and has overall curved portions 15 and cylindrical portions 16 which are arranged to one another such that the upper voltage ⁇ winding 5 and the low-voltage winding 4 each in a Kapselungsraum 17 and 18 are arranged, which are flow ⁇ technically connected to each other.
- the encapsulation chambers 17, 18 are not completely fluid-tight. Some insulating fluid 8 can therefore escape from the barrier system 14 from inside to outside even above the high-voltage winding 5. However, these "unwanted" leaking fluid quantities can be neglected in terms of cooling. The substantial portion of the flow of the insulating fluid is passed through the barrier system 14.
- the barrier system 14 forms below the high-voltage winding 5 an inlet opening 19, through which the from the supply line 12 of the cooling device. 9 exiting cooled insulating fluid enters the barrier system 14.
- the barrier system 14 also forms an outlet opening 21, which is arranged above the low-voltage winding 4 in the example shown.
- the Kapse- lung spaces 17 and 18 are moreover hydraulically MITEI ⁇ Nander coupled.
- the circulation pump 11 ensures that the insulating fluid 8 flows in the direction illustrated by flow arrows 23 through the active part 2 and the vessel 7.
- Each sub-winding 4 and 5 has shield rings 24, which are arranged for field control at its upper and lower ends.
- the insulating fluid 8 ie the ester
- the cooling register 10 wherein cooled cooling insulating fluid 8 emerging from the outlet opening 20 of the supply line 12 enters the barrier system 14 through the inlet opening 19.
- the insulating fluid 8 is deflected several times, so meandering guided until it reaches the lower end of the high-voltage winding 5, are formed in the cooling channels.
- heat loss of the high-voltage winding 5 is applied to the transferdeka ⁇ ducts flowing through isolator. 8 This leads to a constant warming of the insulating 8.
- High-voltage winding 5 forms two temperature ranges 25.1 and 25.2, which are indicated in Figure 1 by a different Mus ⁇ sion.
- the winding 5 is equipped with different insulating materials, which are assigned for example to different thermal ⁇ 's classes.
- the gradually warming insulating fluid 8 enters the encapsulation space 17 of the low-voltage winding 4 from the encapsulation space 17 of the high-voltage winding 5.
- the barrier system 14 then carries the insulating fluid 8 via the low-voltage winding 4, which also has cooling channels and temperature ranges 25.3 and 25.4 with different insulating materials having.
- here again heated insulating fluid 8 passes through the outlet opening 21 into the vessel interior. From there, the isolator 8 via return- ⁇ approximately line 13 and the circulation pump 11 again ter thederegis- 10 is supplied. The cooling circuit starts again.
- Radial and axial spacers include: ten, riders, liners
- Barriers, angle rings, caps, washers, barrier systems includes: insulating cylinders
- the staggering of the thermal performance of insulating materials can also be carried out within the thermal classes according to EN 60085, there are a variety of possibilities, for example, a staggering in temperature steps less than 10 Kelvin is possible.
- Fig. 2 shows a simplifiedandsbei ⁇ game of the electrical device 1 according to the invention, wherein the barrier system 14 is particularly well recognizable.
- the barrier-rensystem 14 is to the effect designed to be used for guiding and deflecting the flow of the Isolierfluides 8 who can ⁇ .
- the barrier system 14 again has cylindrical sections 16, 16.1, 16.2, 16.3, disc-shaped sections 26.1, 26.2, 26.3 and curved sections 15, 15.1, 15.2, 15.3 and 15.4, the latter being also referred to as Winkelrin ⁇ ge or caps.
- the barrier system 14 is designed in such a way that encapsulated winding spaces are formed, which are designated here as encapsulation spaces 17, 28.
- encapsulation spaces 17, 28 encapsulation spaces 17, 28.
- the übli ⁇ ch true existing outer horizontal, a flow channel for the insulating limiting disc-shaped barriers are replaced by closed discs 26.2, 26.3, so that the inflow and outflow of the isolator 8 in the Kapse- lung spaces 17 and 18 controlled by the inlet - 19 and outlet 21 takes place.
- the encapsulation chambers 17 and 18 are fluidically connected to each other by the gap between the cylindrical sections 16.2 and 16.3 is used as a return flow channel 27 for the insulating fluid.
- the inlet opening 19 is formed in the so-called winding ⁇ substructure.
- the outlet opening 21 is located in the disk-shaped section 26.1.
- the structure of the closed barrier surfaces perpendicular as possible should the field direction to Favor ⁇ gen.
- the rümm ⁇ th barrier gen folic approximately to the course of the equipotential lines.
- the ensuing substantially parallel arrangement, the curved portions 15, 15.2 is the use as Flow channel 27 for deflecting the flow of Isolierflui- 8 counter, so that only minor fluidic changes are necessary.
- the check number allows the electrically required curved barrier sections 15.4, 15.5 no reversal of the flow of Iso ⁇ lier basinkeit additional flow linen ⁇ saving and the winding space are inserted outwardly curved sealing barriers 15.3.
- each angle rings low wall thickness 15.3 are combined at the interface between the curved barriers and the cylindrical barrier and opposite to the cylindrical From ⁇ cut 16.3 arranged.
- Fig. 3 shows an embodiment in which only one of the Kapselungssammlung 17, 18 is a winding part with a plurality of Tempe ratur Schemeen ⁇ 25.1 and 25.2 has.
- the thermal class of the conductor insulation 26 increases from the encapsulation space 17 to the encapsulation space 18 and in the latter again from the temperature range 25.1 to the temperature range 25.2.
- the transition of Temperartur Schemee takes place after reaching a winding ⁇ height Hl.
- the oil column of the insulation structure 27 and horizontal Ka ⁇ ducts 28 are known to be partitioned by the barrier system 14 in narrower vertical channels. According to the invention, these channels 27, 28 are used to conduct the insulating fluid 8 to the partial winding 4 downstream in the flow direction 23.
- a plurality of these channels 27, 28 extend parallel to one another in order to achieve the required for the flow of the insulating fluid 8 cross section.
- the cross-section or more precisely cross-sectional area and the number of connected vertical 27 and horizontal 28 channels may vary within the scope of the invention.
- the partial windings are equipped with so-called hot spots of their respective temperature ranges 5, 25.1 and 25.2 with thermal sensors 31.
- the sensors 31 are connected to a control unit, not shown figuratively.
- a further sensor 32 for measuring the maximum temperature of the insulating liquid 8 is arranged. If necessary, the control of the maximum temperature temperature of the insulating fluid 8 in the upstream part of the winding 5 via the sensor 33 possible.
- Fig. 4 shows an embodiment in which the core 3 is included in the cooling circuit. This is advantageous if a large temperature spread of the insulating fluid 8 is provided.
- the design of the core 3 to higher temperatures requires only a very small effort, since no moldings are required and an electric field stress must not be taken into account. Therefore, the classification of the
- the windings 5 and 4 and then the core 3 from the insulating fluid 8 are successively flowed through.
- the cooling channels of the partial windings 4.5 and cooling channels 34 of the core 3 are thermally and fluidically connected in series.
- the barriers are designed so that the main flow of Isolierfluides is respectively directed 8 in ⁇ nerrenz the Kapselungssammlung 17 and 18 and in the core 3 from bottom to top, so the proper motion produced by heating the isolator 8 is rectified.
- the return of the insulating fluid 8 takes place in each case in the vertical channels 27 between the barriers of the insulation arrangement, which here as isolation sections of the
- the vertical portions 16 of the barrier system 14 which define channels 27 with Chryslerge ⁇ translated flow directions, provided in areas with a high temperature difference between the Isolierfluides 8 with an additional thermal insulation 35th This can be done in the simple case by increasing the wall thickness. In areas close to the direction reversal of the insulating fluid 8, the temperature difference is low. There, therefore, no action is required.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016219378.3A DE102016219378A1 (de) | 2016-10-06 | 2016-10-06 | Elektrisches Gerät mit unterschiedlich stark gekühlten Kapselungsräumen |
PCT/EP2017/073248 WO2018065188A1 (de) | 2016-10-06 | 2017-09-15 | Elektrisches gerät mit unterschiedlich stark gekühlten kapselungsräumen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3494583A1 true EP3494583A1 (de) | 2019-06-12 |
Family
ID=59859096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17767832.3A Pending EP3494583A1 (de) | 2016-10-06 | 2017-09-15 | Elektrisches gerät mit unterschiedlich stark gekühlten kapselungsräumen |
Country Status (4)
Country | Link |
---|---|
US (1) | US11322289B2 (de) |
EP (1) | EP3494583A1 (de) |
DE (1) | DE102016219378A1 (de) |
WO (1) | WO2018065188A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6969721B2 (ja) * | 2017-12-30 | 2021-11-24 | ヒタチ・エナジー・スウィツァーランド・アクチェンゲゼルシャフトHitachi Energy Switzerland Ag | 変圧冷却回路中でのセンサ利用のためのシステム |
EP3767651A1 (de) * | 2019-07-17 | 2021-01-20 | Siemens Aktiengesellschaft | Verfahren zum betreiben eines kühlsystems eines transformators |
CN110428951B (zh) * | 2019-08-08 | 2021-06-04 | 李辛阳 | 一种基于温度变化的变压器散热设备 |
CN112863813B (zh) * | 2021-02-04 | 2021-11-23 | 台州市康新电容器有限公司 | 一种变压器防水外罩 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3144770A (en) * | 1961-01-30 | 1964-08-18 | Gen Electric | Means for determining an internal condition in electrical apparatus |
DE2016508A1 (de) | 1970-04-07 | 1972-10-19 | Skoda Np | Wicklung einer nichtrotierenden elektromagnetischen Maschine, besonders eines Transformators |
DE2364438B2 (de) | 1973-12-24 | 1979-03-29 | Henkel Kgaa, 4000 Duesseldorf | Verwendung von wäßrigen Klebstofflösungen auf Basis von Polyvinylalkohol |
DE2738398C3 (de) | 1977-08-25 | 1981-08-13 | Transformatoren Union Ag, 7000 Stuttgart | Gestell zur Halterung und Pressung von Wicklungen in flüssigkeitsgekühlten Großtransformatoren |
US3902146A (en) * | 1974-11-27 | 1975-08-26 | Gen Electric | Transformer with improved liquid cooled disc winding |
JPS5296313A (en) | 1976-02-09 | 1977-08-12 | Hitachi Ltd | Oil-filled transformer |
JPS5442620A (en) | 1977-09-12 | 1979-04-04 | Hitachi Ltd | Transformer winding |
JPS5790921A (en) | 1980-11-27 | 1982-06-05 | Toshiba Corp | Oil immersed transformer |
JPS60246608A (ja) | 1984-05-22 | 1985-12-06 | Kitashiba Denki Kk | 油入機器巻線の冷却方法 |
JPS61150309A (ja) | 1984-12-25 | 1986-07-09 | Toshiba Corp | 送油式変圧器巻線 |
JP2853505B2 (ja) * | 1993-03-19 | 1999-02-03 | 三菱電機株式会社 | 静止誘導機器 |
DE19701269A1 (de) * | 1997-01-16 | 1998-07-23 | Ask Antriebs Steuerungs Und In | Transformator mit Flüssigkeitskühlung |
US6494617B1 (en) * | 1999-04-30 | 2002-12-17 | General Electric Company | Status detection apparatus and method for fluid-filled electrical equipment |
US6401518B1 (en) * | 1999-07-29 | 2002-06-11 | General Electric Company | Fluid filled electrical device with diagnostic sensor located in fluid circulation flow path |
-
2016
- 2016-10-06 DE DE102016219378.3A patent/DE102016219378A1/de not_active Ceased
-
2017
- 2017-09-15 WO PCT/EP2017/073248 patent/WO2018065188A1/de unknown
- 2017-09-15 US US16/340,266 patent/US11322289B2/en active Active
- 2017-09-15 EP EP17767832.3A patent/EP3494583A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE102016219378A1 (de) | 2018-04-12 |
US11322289B2 (en) | 2022-05-03 |
US20190259521A1 (en) | 2019-08-22 |
WO2018065188A1 (de) | 2018-04-12 |
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