EP1903583B1 - High current bushing for transformer - Google Patents
High current bushing for transformer Download PDFInfo
- Publication number
- EP1903583B1 EP1903583B1 EP20060020049 EP06020049A EP1903583B1 EP 1903583 B1 EP1903583 B1 EP 1903583B1 EP 20060020049 EP20060020049 EP 20060020049 EP 06020049 A EP06020049 A EP 06020049A EP 1903583 B1 EP1903583 B1 EP 1903583B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductor
- conductors
- transformer
- sub
- sections
- 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.)
- Active
Links
- 239000004020 conductor Substances 0.000 claims description 138
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000615 nonconductor Substances 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000002500 effect on skin Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- H01F27/02—Casings
- H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
Definitions
- the invention relates to a high-current transformer bushing with a fastening means for attachment to a power plant transformer, an electrical conductor for passing through a transformer boiler housing and a guided around the conductor electrical insulator.
- An electrical supply line to a power plant transformer is a high-current supply line, which is designed for the passage of very high currents in conjunction with high voltages. For example, if a generator of a steam power plant supplies a capacity of 600 MW to 900 MW with an output voltage of 21 kV to 27 kV, the result is a current of 18 kA to 25 kA, for which the supply line to the transformer must be designed.
- the skin effect describes the fact that an alternating current flowing through a conductor generates eddy currents in the interior of the conductor, which are directed counter to the generator current. Since the AC-induced magnetic field inside the conductor induces stronger eddy currents than at the edge, the counter-voltage generated thereby inside the conductor is greatest and weakens towards its edge. Due to the large reactance inside the conductor, the current flows essentially at the edge. For a copper conductor, the skin depth at which the current density has dropped below the factor 1 / e is about 9 mm at 50 Hz. Therefore, conduction areas that are below about 20 mm below the radially outer line surface, hardly contribute to the power line.
- a power plant transformer known to perform the supply line as a tubular conductor whose wall thickness is a maximum of 20 mm.
- a pipe conductor can have a diameter of up to 1 m.
- the implementation of three such pipes for the three phases of a three-phase supply through the housing of the power plant transformer is complex in the voltage insulation and unfavorable in terms of space, which is why the implementation is built by the transformer housing with a slimmer pipe.
- the resulting higher current density in the conductor and the associated higher heat development is at least partially compensated by more expensive conductor materials and a cooling of the conductor with transformer oil to the required maximum temperature of 90 ° C for the conductor, maximum to 115 ° C at hot spots.
- the US 4 132 853 A discloses an electrically insulated feedthrough having a multichannel cooling system to solve the problem of heating.
- an insulating bushing is formed with a first channel between a conductor and an insulating layer surrounding the conductor, and a second channel formed by a tubular element arranged concentrically within the conductor and spaced from the conductor.
- An insulating housing is spaced from the outer surface of the layer to form a third longitudinal channel having its ends communicating with the ends of the first channel.
- Circumferentially arranged openings at both ends of the electrical conductor connect the second to the third channel, so that coolant in the first and second channels can rise into an upper part of the passage and can be discharged down again via the third channel.
- US 4 132 853 A discloses the preamble of claim 1.
- the EP 1 411 619 A (Feuerstein Winfried, Schreiner, Franz ) discloses an electrically isolated generator lead having a cylindrical inner conductor and a cylindrical cladding tube connection region disposed concentric with the inner conductor.
- the inner conductor is made of an inner Guide tube and an outer guide tube constructed, and designed so that the current paths in the longitudinal direction of the inner conductor at least once between the outer guide tube and the inner guide tube change. Due to the uniform distribution of the flow of current through the inner guide tube and the outer guide tube of the inner conductor, the current heat losses are divided equally between the two guide tubes.
- a high-current transformer feedthrough of the type mentioned in which the electrical conductor comprises two nested tubular sub-conductors.
- the current to the transformer can be passed through both sub-conductors and a current density in each sub-conductor can be maintained so that heating of the sub-conductors remains to a desired extent.
- the internal resistances of both sub-conductors are the same by appropriate measures, so that a uniform distribution of the total current takes place on both sub-conductors without a corresponding control.
- the two sub-conductors are advantageously connected to one another at their ends, so that the total current can be supplied jointly to both sub-conductors and can be dissipated jointly by the two sub-conductors, and in that the intersection in the axial direction has mutually rotated connecting conductor pairs between inner and outer sections.
- the invention features on the one hand that both sub-conductors along a current path by means of a radial cross-over both an inner portion within the other sub-conductor and an outer portion outside the other sub-conductor have.
- the subconductor arranged in each case in the interior of the other subconductor has a higher internal resistance than the outer subconductor. Since both sub-conductors run both inside and outside, this increased internal resistance is distributed to both sub-conductors, since both sub-conductors are provided with an inner route with increased resistance. This can be done in a simple manner, a uniform current distribution to both sub-conductors.
- a current path is a path along a voltage gradient upon application of an operational voltage to the conductor.
- the invention also features the feature that the intersection in the axial direction has twisted pairs of connecting conductors between inner and outer sections.
- the blindly ending sections can be dispensed with, with the exception of small insulating distances between the connecting conductors, and a large, continuous line cross section can be achieved.
- a uniform distribution of the current flowing through both sub-conductors total current can be particularly easily done when the two sub-conductors are arranged concentrically.
- a radial current displacement through the skin effect can be distributed uniformly in the radial direction on both sub-conductors.
- the two sub-conductors are guided into each other over an axial distance, and the intersection is arranged in the middle of the axial distance.
- the internal resistance of the two sub-conductors can be distributed particularly reliably and independently of operating conditions symmetrically and thus evenly. It is sufficient in this case if a region of the intersection is arranged in the middle of the axial distance.
- the intersection is arranged outside the transformer housing.
- a crossover of the sub-conductors can be associated with a reduction of the cross-section of the conductor and thus with an increased resistance and increased heat development.
- the cooling oil is suitably transformer oil.
- a crossover may be made by an array of interconnecting conductors connecting an inner portion to an outer portion of a subconductor. These connecting conductors may point in the radial direction or be guided at an angle to the axial direction X-shaped.
- a simple production of a mechanically stable and compact crossover can be achieved if the crossover S-shaped curved connecting conductor between an inner and an outer portion.
- an axial distance between inner sections of the sub-conductors is smaller than an axial distance between outer sections of the sub-conductors. It can be made a cross-over in a small space, so that conductor lines with a small cross-section can be kept short and the resistance small.
- a part conductor is passed through the other. This can be carried out particularly easily in the production, if a sub-conductor has tangential sections which terminate blind and where connecting conductors of the other sub-conductor can be passed.
- connecting conductors of the other sub-conductor can be passed.
- connection conductors are easier to manufacture than wider connection conductors. To compensate for a current displacement in the connecting conductor this can be made thicker in its central region than at its axial ends.
- FIG. 1 shows a generator lead 2, which is one of three phases of a three-phase lead of a power plant generator.
- the three-phase dissipation serves to forward the output from the power generator three-phase current to a in FIG. 1 only indicated Kraftwerkstrafo 4.
- the power plant generator has a capacity of 900 MW and the generator lead 2 and 4 Kraftwerkstrafo are designed accordingly.
- the generator lead 2 comprises a tubular conductor 6 made of pure aluminum with a diameter of 0.92 m and a wall thickness of 20 mm, which is surrounded by a cladding tube 8 for encapsulation.
- the conductor 6 terminates at a flange 10, which is connected via flexible copper bands 12 electrically connected to a transformer terminal 14.
- the transformer terminal 14 is connected via a flange contact 16 with a high current transformer feedthrough 18, which is connected to a flange 20 of a transformer box 22 of the power plant transformer 4 and passed through this and the transformer boiler housing 22.
- the cladding tube 8 comprises a flexible compensating piece 24, which, like the copper bands 12, is provided to compensate for oscillations between the power plant transformer 4 and the generator outlet 2.
- the high-current transformer bushing 18 is shown in a longitudinal section. It comprises an outer insulator 26, designed as a porcelain tube with ripples 28 for rollover protection, and separating an electrical conductor 30 from the earthed flange terminal 20 of the boiler ceiling.
- the conductor 30 begins at the top of the flange contact 16 and terminates within the transformer boiler housing 22 on a current carrying fastening means 32 designed as a double conductor flange for indirect attachment to the power station transformer 4.
- the double conductor flange is connected by a screw connection to a busbar 34 of a switching line which electrically connects the conductor 30 a low-voltage winding of the power plant transformer 4 connects.
- a lower insulating plate 36 seals an oil space 38 filled with transformer oil against the transformer interior, wherein the oil space 38 fills most of the interior of the insulator 26 and surrounds most of the conductor 30 and is sealed to the outside by a seal 40.
- the conductor 30 comprises two mutually guided tubular sub-conductors 42, 44 made of copper, of which the sub-conductor 42 has an outer portion 46 and an inner portion 48 and the sub-conductor 44 has an inner portion 50 and an outer portion 52.
- the sections 46 and 50 and the sections 48 and 52 are tubular and each arranged concentrically about a central axis 54 into each other.
- the outer sections 46, 52 have a diameter of 340 mm and the inner sections 48, 50 a diameter of 280 mm, wherein the sections 46, 48, 50, 52 with a wall thickness of 16 mm and a radial distance between them of 14 mm are executed.
- the sections 46, 48, 50, 52 are completely surrounded by the transformer oil serving as cooling oil in the oil chamber 38 and from its radial outer side, the sections 48, 50 are completely and the sections 46, 52 largely completely surrounded by transformer oil.
- a plurality of openings 56 are respectively introduced into the sections 46, 48, 50, 52.
- the transformer oil also flows around a radial intersection 58 of the sub-conductors 42, 44 which electrically connects the outer portion 46 to the inner portion 48 of the sub-conductor 42 and the inner portion 50 to the outer portion 52 of the sub-conductor 44.
- the crossover 58 is disposed in the middle of an axial path 60 between the flange contact 16 and the flange of the fastener 32 so that the inner portions 48, 50 and the outer portions 46, 52 are at least substantially equal in dimension.
- the intersection 58 is shown in FIGS. 3 and 4 in various cross sections.
- Four connecting conductors 62 connect the outer portion 46 to the inner portion 48
- four connecting conductors 64 connect the inner portion 50 to the outer portion 52 so that a current path along the conductor 30 is always through an outer portion 46, 52, a connecting conductor 62, 64th and an inner portion 48, 50 extends.
- Between the connecting conductors 62, 64 is always a small tangential distance 66, which prevents a short circuit of the sub-conductors 42, 44.
- connection conductors 62, 64 are provided with upper and lower axially guided segments 68, 70 for connection to each of the sections 46, 48, 50, 52 and to a radially aligned intermediate segment 72 for connecting the segments 68, 70 Connecting conductors 62, 64 are welded to the sections 46, 48, 50, 52, respectively.
- the internal resistances or alternating current resistances of the outer sections 46, 52 caused by the skin effect are the same and the inner sections 48, 50 equal.
- the same material and the same geometric dimensions of each of the outer portions 46, 52 and the inner portions 48, 50 and the ohmic resistances of the same sections 46, 48, 50, 52 and the connecting conductors 62, 64 are equal.
- each of the sub-conductors 42, 44 has an outer portion 46, 52 and an inner portion 48, 50 and four connection conductors 62, 64, the total resistances of the sub-conductors 42, 44 are equal and they are in operation of the high-current transformer feedthrough 18 of electricity flowing through with the same current.
- FIG. 5 Another embodiment of a conductor 74 for a high current transformer feedthrough is shown in FIG. 5 shown in a perspective view.
- the following description is essentially limited to the differences from the exemplary embodiment in FIGS. 1 to 4, to which reference is made with regard to features and functions that remain the same.
- Substantially identical components are basically numbered with the same reference numerals.
- the conductor 74 is constructed analogously to the conductor 30.
- the sections 46 and 48 and the sections 50 and 52, of which in FIG. 5 However, only the outer portions 46, 52 are visible, are interconnected by connecting conductors 76, 78, which are each guided diagonally and together form an X-shaped cross-over 80.
- This embodiment is particularly easy to manufacture.
- other crosses are also conceivable, such as by S-shaped or more generally: curved connection conductor.
- FIGS. 2-4 the embodiment of FIGS. 2-4 permits a compact construction of the cross-over 58 in the axial direction, which allows an axial distance 82 between inner sections 48, 50 of the sub-conductors 42, 44 to be smaller than one axial distance 84 between outer portions 46, 52 of the sub-conductors 42, 44.
- the distance 82 between the inner portions 48, 50 is only 70 mm and the distance 84 between the outer portions 46, 52 is 100 mm.
- each four connecting conductors 62, 64, 76, 78 is only about 40% of the line cross section of the sections 46, 48, 50, 52. This results in the connecting conductors 62, 64, 76, 78, a slightly higher current density connected to a something Higher heat development than in the sections 46, 48, 50, 52. Due to the small line lengths of the connecting conductors 62, 64, 76, 78, this increased heat can be dissipated by the oil bath with transformer oil, the connecting conductors 62, 64, 76, 78th surrounds. For this purpose, the convection of the transformer oil favored by the openings 56 is advantageous.
- FIG. 6 An embodiment in which the generation of increased heat by a small cross-section of the conductor conductors 62, 64, 76, 78 is kept low, is in FIG. 6 shown in a schematic side view.
- the connecting conductors 90, 92 are at most three times as wide as a radial tube wall thickness of 16 mm of the sections 46, 48, 50, 52nd
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
- Transformers For Measuring Instruments (AREA)
Description
Die Erfindung betrifft eine Hochstrom-Trafodurchführung mit einem Befestigungsmittel zur Befestigung an einem Kraftwerkstrafo, einem elektrischen Leiter zur Durchführung durch ein Trafokesselgehäuse und einem um den Leiter geführten elektrischen Isolator.The invention relates to a high-current transformer bushing with a fastening means for attachment to a power plant transformer, an electrical conductor for passing through a transformer boiler housing and a guided around the conductor electrical insulator.
Eine elektrische Zuleitung zu einem Kraftwerkstransformator ist eine Hochstrom-Zuleitung, die zur Durchleitung sehr hoher Ströme in Verbindung mit hohen Spannungen ausgelegt ist. Liefert beispielsweise ein Generator eines Dampfkraftwerks eine Leistung von 600 MW bis 900 MW bei einer Ausgangsspannung von 21 kV bis 27 kV, so ergibt sich eine Stromstärke von 18 kA bis 25 kA, für die die Zuleitung zum Transformator ausgelegt sein muss.An electrical supply line to a power plant transformer is a high-current supply line, which is designed for the passage of very high currents in conjunction with high voltages. For example, if a generator of a steam power plant supplies a capacity of 600 MW to 900 MW with an output voltage of 21 kV to 27 kV, the result is a current of 18 kA to 25 kA, for which the supply line to the transformer must be designed.
Erschwerend kommt hinzu, dass der Strom durch eine solche Zuleitung durch den Skin-Effekt an den Außenbereich des Leiters drängt, so dass dort sehr hohe Querschnittsströme auftreten, die erhebliche Stromwärmeverluste bewirken. Der Skin-Effekt beschreibt den Umstand, dass ein durch einen Leiter fließender Wechselstrom im Inneren des Leiters Wirbelströme erzeugt, die dem Erzeugerstrom entgegengerichtet sind. Da das vom Wechselstrom induzierte Magnetfeld im Inneren des Leiters stärkere Wirbelströme induziert als am Rand, ist die hierdurch im Inneren des Leiters erzeugte Gegenspannung am größten und schwächt sich zu dessen Rand hin ab. Durch den großen Blindwiderstand im Inneren des Leiters fließt der Strom im Wesentlichen am Rand. Bei einem Kupferleiter ist die Skin-Tiefe, bei der die Stromdichte unter den Faktor 1/e abgesunken ist, bei 50 Hz etwa 9 mm. Daher tragen Leitungsbereiche, die unterhalb von etwa 20 mm unter der radial äußeren Leitungsoberfläche liegen, kaum zur Stromleitung bei.To make matters worse, that the current through such a lead through the skin effect on the outer region of the conductor urges, so that there very high cross-sectional currents occur, causing significant power heat losses. The skin effect describes the fact that an alternating current flowing through a conductor generates eddy currents in the interior of the conductor, which are directed counter to the generator current. Since the AC-induced magnetic field inside the conductor induces stronger eddy currents than at the edge, the counter-voltage generated thereby inside the conductor is greatest and weakens towards its edge. Due to the large reactance inside the conductor, the current flows essentially at the edge. For a copper conductor, the skin depth at which the current density has dropped below the factor 1 / e is about 9 mm at 50 Hz. Therefore, conduction areas that are below about 20 mm below the radially outer line surface, hardly contribute to the power line.
Zur Zuleitung hoher Ströme zu einem Kraftwerkstrafo ist es bekannt, die Zuleitung als einen rohrförmigen Leiter auszuführen, dessen Wandstärke maximal 20 mm beträgt. Ein solcher Rohrleiter kann einen Durchmesser von bis zu 1 m aufweisen. Die Durchführung von drei solchen Rohrleitern für die drei Phasen einer Drehstromzuführung durch das Gehäuse des Kraftwerkstrafos ist allerdings aufwendig in der Spannungsisolierung und ungünstig im Raumbedarf, weshalb die Durchführung durch das Trafogehäuse mit einem schlankeren Rohrleiter gebaut wird. Die hieraus resultierende höhere Stromdichte im Leiter und die damit verbundene höhere Wärmeentwicklung wird durch teurere Leitermaterialien und eine Kühlung des Leiters mit Trafoöl zumindest teilweise kompensiert, um die nach den Normen IEC und ANSI geforderte maximal zulässige Temperatur von 90°C für den Leiter, maximal bis 115°C an heißen Einzelstellen, einzuhalten.It is for supplying high currents to a power plant transformer known to perform the supply line as a tubular conductor whose wall thickness is a maximum of 20 mm. Such a pipe conductor can have a diameter of up to 1 m. However, the implementation of three such pipes for the three phases of a three-phase supply through the housing of the power plant transformer is complex in the voltage insulation and unfavorable in terms of space, which is why the implementation is built by the transformer housing with a slimmer pipe. The resulting higher current density in the conductor and the associated higher heat development is at least partially compensated by more expensive conductor materials and a cooling of the conductor with transformer oil to the required maximum temperature of 90 ° C for the conductor, maximum to 115 ° C at hot spots.
Die
Die
Es ist die Aufgabe der vorliegenden Erfindung, eine kleinbauende Hochstrom-Trafodurchführung mit den Merkmalen des Anspruchs 1 anzugeben, mit der eine Erwärmung des durch ein Trafokesselgehäuse geführten elektrischen Leiters gering gehalten werden kann.It is the object of the present invention to provide a small-sized high-current transformer bushing with the features of claim 1, with a heating of the guided by a transformer box electrical conductor can be kept low.
Diese Aufgabe wird durch eine Hochstrom-Trafodurchführung der Eingangs genannten Art gelöst, bei der der elektrische Leiter zwei ineinander geführte rohrförmige Teilleiter aufweist. Der Strom zum Trafo kann durch beide Teilleiter geführt und eine Stromdichte in jedem Teilleiter so gehalten werden, dass eine Erwärmung der Teilleiter in einem erwünschten Umfang bleibt. Zweckmäßigerweise sind die inneren Widerstände beider Teilleiter durch geeignete Maßnahmen gleich, so dass eine gleichmäßige Verteilung des Gesamtstroms auf beide Teilleiter ohne eine entsprechende Steuerung erfolgt. Die beiden Teilleiter sind an ihren Enden vorteilhafterweise miteinander verbunden, so dass der Gesamtstrom beiden Teilleitern gemeinsam zugeführt und von beiden Teilleitern gemeinsam abgeführt werden kann, und dass die Durchkreuzung in Axialrichtung umeinander gedrehte Verbindungsleiterpaare zwischen inneren und äußeren Abschnitten aufweist.This object is achieved by a high-current transformer feedthrough of the type mentioned, in which the electrical conductor comprises two nested tubular sub-conductors. The current to the transformer can be passed through both sub-conductors and a current density in each sub-conductor can be maintained so that heating of the sub-conductors remains to a desired extent. Conveniently, the internal resistances of both sub-conductors are the same by appropriate measures, so that a uniform distribution of the total current takes place on both sub-conductors without a corresponding control. The two sub-conductors are advantageously connected to one another at their ends, so that the total current can be supplied jointly to both sub-conductors and can be dissipated jointly by the two sub-conductors, and in that the intersection in the axial direction has mutually rotated connecting conductor pairs between inner and outer sections.
Die Erfindung kennzeichnet dabei einerseits, dass beide Teilleiter entlang einer Strombahn mittels einer radialen Durchkreuzung sowohl einen inneren Abschnitt innerhalb des anderen Teilleiters als auch einen äußeren Abschnitt außerhalb des anderen Teilleiters aufweisen. Dadurch, hat der jeweils im Inneren des anderen Teilleiters angeordnete Teilleiter einen höheren inneren Widerstand als der äußere Teilleiter. Da beide Teilleiter sowohl innen als auch außen verlaufen, verteilt sich dieser erhöhte innere Widerstand auf beide Teilleiter, da beide Teilleiter mit einer inneren Strecke mit erhöhtem Widerstand versehen sind. Hierdurch kann auf einfache Weise eine gleichmäßige Stromverteilung auf beide Teilleiter erfolgen. Eine Strombahn ist eine Bahn entlang eines Spannungsgradienten bei Anlegen einer betriebsgemäßen Spannung an den Leiter.The invention features on the one hand that both sub-conductors along a current path by means of a radial cross-over both an inner portion within the other sub-conductor and an outer portion outside the other sub-conductor have. As a result, the subconductor arranged in each case in the interior of the other subconductor has a higher internal resistance than the outer subconductor. Since both sub-conductors run both inside and outside, this increased internal resistance is distributed to both sub-conductors, since both sub-conductors are provided with an inner route with increased resistance. This can be done in a simple manner, a uniform current distribution to both sub-conductors. A current path is a path along a voltage gradient upon application of an operational voltage to the conductor.
Die Erfindung kennzeichnet zudem das Merkmal, dass die Durchkreuzung in Axialrichtung umeinander gedrehte Verbindungsleiterpaare zwischen inneren und äußeren Abschnitten aufweist. Dadurch kann auf die blind endenden Abschnitte - bis auf kleine Isolierabstände zwischen den Verbindungsleitern - verzichtet werden und ein großer durchgehender Leitungsquerschnitt erreicht werden.The invention also features the feature that the intersection in the axial direction has twisted pairs of connecting conductors between inner and outer sections. As a result, the blindly ending sections can be dispensed with, with the exception of small insulating distances between the connecting conductors, and a large, continuous line cross section can be achieved.
Eine gleichmäßige Aufteilung des durch beide Teilleiter fließenden Gesamtstroms kann besonders einfach erfolgen, wenn die beiden Teilleiter konzentrisch angeordnet sind. Eine radiale Stromverdrängung durch den Skin-Effekt kann in radialer Richtung gleichmäßig auf beide Teilleiter verteilt werden.A uniform distribution of the current flowing through both sub-conductors total current can be particularly easily done when the two sub-conductors are arranged concentrically. A radial current displacement through the skin effect can be distributed uniformly in the radial direction on both sub-conductors.
Vorteilhafterweise sind die beiden Teilleiter über eine axiale Strecke ineinander geführt, und die Durchkreuzung ist in der Mitte der axialen Strecke angeordnet. Auf diese Weise kann der innere Widerstand der beiden Teilleiter besonders zuverlässig und unabhängig von Betriebsbedingungen symmetrisch und somit gleichmäßig verteilt werden. Es ist hierbei ausreichend, wenn ein Bereich der Durchkreuzung in der Mitte der axialen Strecke angeordnet ist. Zweckmäßigerweise ist die Durchkreuzung außerhalb des Trafogehäuses angeordnet.Advantageously, the two sub-conductors are guided into each other over an axial distance, and the intersection is arranged in the middle of the axial distance. In this way, the internal resistance of the two sub-conductors can be distributed particularly reliably and independently of operating conditions symmetrically and thus evenly. It is sufficient in this case if a region of the intersection is arranged in the middle of the axial distance. Appropriately, the intersection is arranged outside the transformer housing.
Eine Durchkreuzung der Teilleiter kann mit einer Verringerung des Leitungsquerschnitts der Teilleiter verbunden sein und damit mit einem erhöhten Widerstand und einer erhöhten Wärmeentwicklung. Um einer an dieser Stelle auftretenden gegenüber der Umgebung erhöhten Wärmeentwicklung entgegenzuwirken und die erzeugte Wärme effektiv in die Umgebung zu verteilen, ist es vorteilhaft, wenn die Durchkreuzung zur Umspülung mit Kühlöl vorgesehen ist. Das Kühlöl ist zweckmäßigerweise Trafoöl.A crossover of the sub-conductors can be associated with a reduction of the cross-section of the conductor and thus with an increased resistance and increased heat development. To counteract an occurring at this point relative to the environment increased heat generation and effectively distribute the heat generated in the environment, it is advantageous if the intersection of the rinsing with Cooling oil is provided. The cooling oil is suitably transformer oil.
Eine Durchkreuzung kann durch eine Anordnung von Verbindungsleitern hergestellt werden, die einen inneren Abschnitt mit einem äußeren Abschnitt eines Teilleiters miteinander verbinden. Diese Verbindungsleiter können in Radialrichtung weisen oder schräg zur Axialrichtung X-förmig geführt sein. Eine einfache Herstellung einer mechanisch stabilen und kompakten Durchkreuzung kann erreicht werden, wenn die Durchkreuzung S-förmig geschwungene Verbindungsleiter zwischen einem inneren und einem äußeren Abschnitt aufweist.A crossover may be made by an array of interconnecting conductors connecting an inner portion to an outer portion of a subconductor. These connecting conductors may point in the radial direction or be guided at an angle to the axial direction X-shaped. A simple production of a mechanically stable and compact crossover can be achieved if the crossover S-shaped curved connecting conductor between an inner and an outer portion.
In einer weiteren vorteilhaften Ausführungsform der Erfindung ist ein axialer Abstand zwischen inneren Abschnitten der Teilleiter kleiner als ein axialer Abstand zwischen äußeren Abschnitten der Teilleiter. Es kann eine Durchkreuzung auf engem Raum hergestellt werden, so dass Leiterstrecken mit geringem Leitungsquerschnitt kurz und der Widerstand klein gehalten werden kann.In a further advantageous embodiment of the invention, an axial distance between inner sections of the sub-conductors is smaller than an axial distance between outer sections of the sub-conductors. It can be made a cross-over in a small space, so that conductor lines with a small cross-section can be kept short and the resistance small.
Bei der Durchkreuzung wird ein Teileiter durch den anderen hindurchgeführt. Dies kann in der Herstellung besonders einfach ausgeführt werden, wenn ein Teilleiter tangentiale Abschnitte aufweist, die blind enden und an denen Verbindungsleiter des anderen Teilleiters hindurchgeführt werden können. Um bei einer solchen Durchkreuzung eine möglichst geringe Stromverdrängung in den Verbindungsleitern zu erzielen, ist es vorteilhaft, wenn in Axialrichtung umeinander gedrehte Verbindungsleiterpaare maximal dreimal so breit sind wie eine radiale Rohrwanddicke der Teilleiter. Zusätzlich sind solche Verbindungsleiter leichter zu fertigen als breitere Verbindungsleiter. Zum Ausgleich einer Stromverdrängung im Verbindungsleiter kann dieser in seinem mittleren Bereich dicker ausgeführt sein als an seinen axialen Enden.At the crossover, a part conductor is passed through the other. This can be carried out particularly easily in the production, if a sub-conductor has tangential sections which terminate blind and where connecting conductors of the other sub-conductor can be passed. In order to achieve the lowest possible current displacement in the connecting conductors in such a cross-over, it is advantageous if in the axial direction around each other twisted pairs of connecting conductors are at most three times as wide as a radial pipe wall thickness of the sub-conductors. In addition, such connection conductors are easier to manufacture than wider connection conductors. To compensate for a current displacement in the connecting conductor this can be made thicker in its central region than at its axial ends.
Die Erfindung wird anhand von Ausführungsbeispielen näher erläutert, die in den Zeichnungen dargestellt sind.The invention will be explained in more detail with reference to exemplary embodiments, which are illustrated in the drawings.
Es zeigen:
- FIG 1
- einen Anschluss einer gekapselten Generatorableitung an einen Kraftwerkstrafo mit einer Hochstrom-Trafodurchführung,
- FIG 2
- die Hochstrom-Trafodurchführung aus
FIG 1 in einer Schnittdarstellung, - FIG 3
- einen ersten Querschnitt durch einen Leiter der Hochstrom-Trafodurchführung,
- FIG 4
- einen weiteren Querschnitt durch den Leiter,
- FIG 5
- einen anderen Leiter mit einer Durchkreuzung von zwei Teilleitern in einer perspektivischen Ansicht und
- FIG 6
- eine Durchkreuzung mit in Axialrichtung umeinander gedrehten Verbindungsleiterpaaren.
- FIG. 1
- a connection of an encapsulated generator lead to a power plant transformer with a high current transformer feed-through,
- FIG. 2
- the high current transformer feedthrough
FIG. 1 in a sectional view, - FIG. 3
- a first cross section through a conductor of the high-current transformer feed-through,
- FIG. 4
- another cross-section through the ladder,
- FIG. 5
- another conductor with a crossing of two sub-conductors in a perspective view and
- FIG. 6
- a cross-over with twisted in the axial direction connecting conductor pairs.
In
Der Leiter 30 umfasst zwei ineinander geführte rohrförmige Teilleiter 42, 44 aus Kupfer, von denen der Teilleiter 42 einen äußeren Abschnitt 46 und einen inneren Abschnitt 48 und der Teilleiter 44 einen inneren Abschnitt 50 und einen äußeren Abschnitt 52 aufweist. Die Abschnitte 46 und 50 und die Abschnitte 48 und 52 sind rohrförmig und jeweils konzentrisch um eine Mittelachse 54 ineinander angeordnet. Die äußeren Abschnitte 46, 52 weisen einen Durchmesser von 340 mm und die inneren Abschnitte 48, 50 einen Durchmesser von 280 mm auf, wobei die Abschnitte 46, 48, 50, 52 mit einer Wandstärke von 16 mm und einem radialen Abstand zwischen sich von 14 mm ausgeführt sind. In ihrem Inneren sind die Abschnitte 46, 48, 50, 52 vollständig von dem als Kühlöl dienenden Trafoöl im Ölraum 38 umgeben und von ihrer radialen Außenseite sind die Abschnitte 48, 50 vollständig und die Abschnitte 46, 52 weitgehend vollständig vom Trafoöl umgeben. Um eine Zirkulation des Trafoöls zu erlauben, sind in die Abschnitte 46, 48, 50, 52 jeweils mehrere Öffnungen 56 eingebracht.The
Das Trafoöl umspült auch eine radiale Durchkreuzung 58 der Teilleiter 42, 44, die den äußeren Abschnitt 46 mit dem inneren Abschnitt 48 des Teilleiters 42 und den inneren Abschnitt 50 mit dem äußeren Abschnitt 52 des Teilleiters 44 elektrisch verbindet. Die Durchkreuzung 58 ist in der Mitte einer axialen Strecke 60 zwischen dem Flanschkontakt 16 und dem Flansch des Befestigungsmittels 32 angeordnet, so dass die inneren Abschnitte 48, 50 und die äußeren Abschnitte 46, 52 in ihren Abmessungen zumindest im Wesentlichen gleich ausgeführt sind.The transformer oil also flows around a
Die Durchkreuzung 58 ist in den FIGen 3 und 4 in verschiedenen Querschnitten gezeigt. Vier Verbindungsleiter 62 verbinden den äußeren Abschnitt 46 mit dem inneren Abschnitt 48 und vier Verbindungsleiter 64 verbinden den inneren Abschnitt 50 mit dem äußeren Abschnitt 52, so dass eine Strombahn entlang des Leiters 30 stets durch einen äußeren Abschnitt 46, 52, einen Verbindungsleiter 62, 64 und einen inneren Abschnitt 48, 50 verläuft. Zwischen den Verbindungsleitern 62, 64 ist stets ein kleiner tangentialer Abstand 66, der einen Kurzschluss der Teilleiter 42, 44 verhindert. Die Verbindungsleiter 62, 64 sind mit einem oberen und unteren in Axialrichtung geführten Segment 68, 70 versehen zur Verbindung mit jeweils einem der Abschnitte 46, 48, 50, 52 und mit einem in Radialrichtung ausgerichteten Zwischensegment 72 zur Verbindung der Segmente 68, 70. Die Verbindungsleiter 62, 64 sind an die Abschnitte 46, 48, 50, 52 jeweils angeschweißt.The
Durch die in den FIGen 2 bis 4 dargestellte Anordnung des Leiters 30 sind die durch den Skin-Effekt hervorgerufenen inneren Widerstände bzw. Wechselstromwiderstände der äußeren Abschnitte 46, 52 gleich und der inneren Abschnitte 48, 50 gleich. Durch das gleiche Material und die gleichen geometrischen Abmessungen jeweils der äußeren Abschnitte 46, 52 und der inneren Abschnitte 48, 50 sind auch die ohmschen Widerstände der jeweils gleichen Abschnitte 46, 48, 50, 52 sowie der Verbindungsleiter 62, 64 gleich. Da jeder der Teilleiter 42, 44 einen äußeren Abschnitt 46, 52 und einen inneren Abschnitt 48, 50 und vier Verbindungsleiter 62, 64 aufweist, sind auch die Gesamtwiderstände der Teilleiter 42, 44 gleich und sie werden im Betrieb der Hochstrom-Trafodurchführung 18 von Strom mit gleicher Stromstärke durchflossen.As a result of the arrangement of the
Ein weiteres Ausführungsbeispiel eines Leiters 74 für eine Hochstrom-Trafodurchführung ist in
Während das in
Bei den in den
Ein Ausführungsbeispiel, bei dem die Erzeugung von Mehrwärme durch einen geringen Leitungsquerschnitt der Verbindungsleiter 62, 64, 76, 78 gering gehalten ist, ist in
Claims (6)
- Heavy-duty transformer bushing (18) comprising a fastening means (32) for fastening on a power station transformer (4), an electrical conductor (30, 74, 86) for passing through a transformer tank housing (22) and an electrical insulator (26) passed around the conductor (30, 74, 86), wherein the electrical conductor (30, 74, 86) has two tubular conductor elements (42, 44) guided inside the other, characterized in that both conductor elements (42, 44) have, along a current path by means of a radial interpenetration (58, 80, 88), both an inner section (48, 50) within the other conductor element (42, 44) and an outer section (46, 52) outside the other conductor element (42, 44), and in that the interpenetration (58, 80, 88) has connecting conductor pairs (90, 92), which are turned one around the other in the axial direction, between inner and outer sections (46, 48, 50, 52).
- Heavy-duty transformer bushing (18) according to Claim 1, characterized in that the two conductor elements (42, 44) are arranged concentrically.
- Heavy-duty transformer bushing (18) according to Claim 1 or 2, characterized in that the two conductor elements (42, 44) are guided one inside the other over an axial extent (60), and the interpenetration (58, 80, 88) is arranged in the centre of the axial extent (60).
- Heavy-duty transformer bushing (18) according to one of the preceding claims, characterized in that the interpenetration (58, 80, 88) is provided for circulatory flushing with cooling oil.
- Heavy-duty transformer bushing (18) according to one of the preceding claims, characterized in that an axial distance (82) between inner sections (48, 50) of the conductor elements (42, 44) is smaller than an axial distance (84) between outer sections (46, 52) of the conductor elements (42, 44).
- Heavy-duty transformer bushing (18) according to one of the preceding claims, characterized in that the connecting conductor pairs (90, 92) are at most three times as wide as a radial tube wall thickness of the conductor elements (42, 44).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060020049 EP1903583B1 (en) | 2006-09-25 | 2006-09-25 | High current bushing for transformer |
ES06020049.0T ES2524451T3 (en) | 2006-09-25 | 2006-09-25 | High current transformer through isolator |
CN2007101612749A CN101162642B (en) | 2006-09-25 | 2007-09-25 | High current bushing for transformer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060020049 EP1903583B1 (en) | 2006-09-25 | 2006-09-25 | High current bushing for transformer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1903583A1 EP1903583A1 (en) | 2008-03-26 |
EP1903583B1 true EP1903583B1 (en) | 2014-10-29 |
Family
ID=37807305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20060020049 Active EP1903583B1 (en) | 2006-09-25 | 2006-09-25 | High current bushing for transformer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1903583B1 (en) |
CN (1) | CN101162642B (en) |
ES (1) | ES2524451T3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2624259B8 (en) * | 2012-02-03 | 2019-09-11 | ABB Schweiz AG | A bushing for a power system and system comprising such a bushing |
EP2922070A1 (en) * | 2014-03-19 | 2015-09-23 | ABB Technology Ltd | Electrical insulation system and high voltage electromagnetic induction device comprising the same |
DE102016209132A1 (en) * | 2016-05-25 | 2017-11-30 | Siemens Aktiengesellschaft | Device for connecting a high voltage conductor to a winding of an electrical device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1047414A (en) * | 1900-01-01 | |||
GB443017A (en) * | 1934-07-18 | 1936-02-18 | Harold Smethurst | Improvements in lead-in conductors for transformers, switchgear and like electrical apparatus enclosed in metal casings |
US4132853A (en) | 1977-04-25 | 1979-01-02 | Westinghouse Electric Corp. | Electrical bushing |
US4594475A (en) * | 1984-08-03 | 1986-06-10 | Westinghouse Electric Corp. | Electrical bushing having a convertible central conductor |
ES2713246T3 (en) * | 2002-10-16 | 2019-05-20 | Siemens Ag | Generator output line, in particular for a connection area at the base of the generator |
CN2805040Y (en) * | 2005-05-27 | 2006-08-09 | 南京智达电气有限公司 | Large current, no local discharging transformer casing |
-
2006
- 2006-09-25 EP EP20060020049 patent/EP1903583B1/en active Active
- 2006-09-25 ES ES06020049.0T patent/ES2524451T3/en active Active
-
2007
- 2007-09-25 CN CN2007101612749A patent/CN101162642B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101162642B (en) | 2012-11-28 |
ES2524451T3 (en) | 2014-12-09 |
CN101162642A (en) | 2008-04-16 |
EP1903583A1 (en) | 2008-03-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19839987C2 (en) | Directly cooled magnetic coil, in particular gradient coil, and method for the production of conductors therefor | |
CH662454A5 (en) | Arrangement for connecting two layer cable in front part of a high voltage generators staenderwicklung. | |
DE1803363A1 (en) | Electric medium voltage line for power transmission | |
EP1903583B1 (en) | High current bushing for transformer | |
EP3179485B1 (en) | High-power coaxial cable | |
EP2256753B1 (en) | Electricity conductor for a high voltage feed | |
DE19653060A1 (en) | Gas-cooled electrical machine | |
DE19603215A1 (en) | Busbar system | |
EP1283582B1 (en) | Arrangement of inside cooled electric conductors, especially for a rotor of a generator | |
DE19607217B4 (en) | Rotatable power connection | |
DE1020408B (en) | Device for the coolant supply in dynamo-electric machines | |
EP1411619B1 (en) | Generator interconnection, in particular having the connection area in the generator foundation | |
EP0932168B1 (en) | Coaxial transformer | |
EP0109024A1 (en) | Three-phase power current line | |
DE962904C (en) | Implementation for large currents, especially for electric ovens | |
DE19819903C2 (en) | Fluid cooled electrical power line | |
WO2007113012A1 (en) | High-current line arrangement and generator system | |
CH387770A (en) | Liquid-cooled stator winding for electrical machines | |
DE322440C (en) | ||
DE2836283C2 (en) | Electrical device winding | |
EP3685411B1 (en) | Winding assembly | |
EP2182533B1 (en) | Transformator | |
EP3001433B1 (en) | Pin-isolator adapted for a transformer | |
DE19843087A1 (en) | Alternating magnetic field generating induction coil is hollow and fluid cooled having longitudinal slits or conductors in axial terminal post | |
WO2013092136A1 (en) | Phase conductor section having a current transformer for a polyphase gas-insulated switchgear assembly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
17P | Request for examination filed |
Effective date: 20080424 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
17Q | First examination report despatched |
Effective date: 20120807 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
INTG | Intention to grant announced |
Effective date: 20140512 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: SIEMENS SCHWEIZ AG, CH Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 693919 Country of ref document: AT Kind code of ref document: T Effective date: 20141115 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502006014038 Country of ref document: DE Effective date: 20141204 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2524451 Country of ref document: ES Kind code of ref document: T3 Effective date: 20141209 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20141029 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150302 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150228 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150130 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502006014038 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20150730 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20151202 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150925 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150925 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150925 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150925 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20160809 Year of fee payment: 11 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20060925 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150930 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160930 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141029 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 693919 Country of ref document: AT Kind code of ref document: T Effective date: 20170925 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170925 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502006014038 Country of ref document: DE Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG, DE Free format text: FORMER OWNER: SIEMENS AG, 80333 MUENCHEN, DE |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20230920 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230926 Year of fee payment: 18 Ref country code: DE Payment date: 20230928 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20231018 Year of fee payment: 18 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG Effective date: 20240409 |