EP1648001A1 - Voltage transformer for railroad locomotive - Google Patents
Voltage transformer for railroad locomotive Download PDFInfo
- Publication number
- EP1648001A1 EP1648001A1 EP04024629A EP04024629A EP1648001A1 EP 1648001 A1 EP1648001 A1 EP 1648001A1 EP 04024629 A EP04024629 A EP 04024629A EP 04024629 A EP04024629 A EP 04024629A EP 1648001 A1 EP1648001 A1 EP 1648001A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure relief
- housing
- pressure
- voltage transformer
- transformer according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003137 locomotive effect Effects 0.000 title 1
- 239000007789 gas Substances 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 230000009172 bursting Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method 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
- H01F27/40—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
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/24—Voltage transformers
- H01F38/26—Constructions
-
- 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
Definitions
- the invention relates to a voltage converter for electrically driven railway railcar or the like, with a pressure-resistant housing, which is provided on its upper side with a pressure relief device.
- the solution according to the invention is that in the lower region of the housing, a further pressure relief device is provided which allows escape of pressurized gases in lateral directions or downwards.
- the invention has the advantage that the gas under pressure in the lower housing region is thus discharged through a separate pressure relief device and a bursting of the lower housing region is prevented.
- the invention is not limited to a doubling of the pressure relief devices on the model of the upper pressure relief device, because if you formed the lower pressure relief device accordingly, the pressurized gases would be directed directly to the roof of the railcar. There it would either damage the roof or to a backwater, which in turn could cause bursting of the converter housing. To avoid this situation, the invention provides a lateral escape of the pressurized gases, which can also be deflected upward again.
- the pressurized gases are preferably discharged through the pressure relief device in the center of the vehicle in order to avoid a directed approximately on the platform pressure wave to protect persons located there.
- the further pressure relief device has a side leading away from the housing pressure relief channel with a pressure relief valve.
- the pressurized gases can be directed in the desired direction.
- the pressure relief valve closes a pressure relief opening, as long as there is no strong pressure in the housing interior. This protects the interior of the housing against the ingress of dirt and moisture. Only when the pressure in the interior becomes much higher than the external pressure, the pressure relief valve opens, to bring about the desired pressure relief and to prevent a bursting of the housing.
- the pressure relief channel is formed in a lateral housing projection and extends inside the housing to below the middle of the housing.
- the shape of the pressure relief channel can thus be done in a cost effective manner in the manufacture of the housing, such as when casting a corresponding housing part.
- the pressure relief valve is designed as a spring-loaded pressure relief cover of a mouth opening of the pressure relief channel.
- the pressure relief cover is connected by pressure spring-loaded bolts with a cover carrier and held by the spring force in abutment with the mouth opening of the pressure relief passage enclosing sealing surface.
- the pressure relief valve can also be designed as a rupture disk.
- Fig. 1 shows the housing 1 of a voltage converter, which is intended for mounting on the roof of an electrically powered railway carriage.
- a voltage converter In the case of railway vehicles, the available height for the voltage transformer is limited because a given clearance gauge may not be exceeded. Therefore, such a voltage converter is usually mounted standing directly on the roof of the railcar, which prohibits an arrangement of a pressure relief device on the bottom.
- the upper pressure relief device consists of a housing cover 2, which is pressed by means of several compression spring loaded bolt 3 sealing against an upper housing flange.
- the Upper bolts 3 with compression springs are provided with a protective cover, so that the compression springs are not visible.
- a further pressure relief device is arranged in the lower region of the housing 1.
- the further pressure relief device to a pressure relief channel 5, which extends in the interior of the housing 1 to below the housing center 6 and in the opposite direction in a housing projection 7 to a mouth opening 8, at which a pressure relief valve 9 is arranged.
- the pressure relief valve 9 is designed as a spring-loaded pressure relief cover 10 which is held by means of spring-loaded pin 11 in contact with a sealing surface 12 of a lid carrier 13.
- the lid carrier 13 is in turn connected to the housing projection 7 by screws 14.
- the bolts 11 protrude into the pressure channel 5, where the compression springs 15 are arranged on the bolt 11. Due to the arrangement of the compression springs 15 in the interior, the mechanics of the pressure relief valve 9 is protected from environmental influences.
- FIG. 2 also shows a control box 16, likewise designed as a lateral housing projection 7, with electrical connections 17 for picking up the measuring voltage provided by the voltage converter in the low-voltage range.
- the voltage converter which is arranged in the interior of the housing 1 and should not explode in the figures, should explode, the development of gases under high pressure occurs. These can now escape not only via the upper pressure relief device, but also via the lower pressure relief device. Under the internal pressure while the pressure relief cover 10 against the pressure of Compression springs 15 raised to the outside, so that between the pressure relief cover 10 and the sealing surface 12 of the lid carrier 13, a gap is formed through which the gases can escape from the interior.
- the gases from the lower portion of the housing 1 from the middle of the housing 6 by means of the pressure relief channel 5 are derived laterally until they pass through the housing projection 7 through to the mouth opening 8, where it between the sealing surface 12 of the lid carrier 13 and the raised pressure relief cover 10 into Get free.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Coils Or Transformers For Communication (AREA)
- Housings And Mounting Of Transformers (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Safety Valves (AREA)
- Details Of Television Scanning (AREA)
- Ac-Ac Conversion (AREA)
Abstract
Description
Die Erfindung betrifft einen Spannungswandler für elektrisch angetriebene Eisenbahntriebwagen oder dergleichen, mit einem druckfesten Gehäuse, das an seiner Oberseite mit einer Druckentlastungseinrichtung versehen ist.The invention relates to a voltage converter for electrically driven railway railcar or the like, with a pressure-resistant housing, which is provided on its upper side with a pressure relief device.
Auf europäischen Bahnnetzen werden Triebwagen eingesetzt, die mit Spannungswandlern ausgerüstet sind. Diese Spannungswandler sind auf dem Triebwagendach angeordnet. Dabei liegen der untere Teil des Spannungswandlers am Erdpotential und der obere Teil am Hochspannungspotential an. Aufgrund der geringen räumlichen Trennung und der hohen Potentialdifferenz sind Spannungswandler besonderen Belastungen ausgesetzt. Tritt ein Schaden am Spannungswandler unter ungünstigen Bedingungen auf, kann er explodieren. Dadurch können Bauteile des Spannungswandlers weggeschleudert werden und etwa auf einem Bahnhof befindliche Personen schädigen.On European railway networks railcars are used, which are equipped with voltage transformers. These voltage transformers are arranged on the motor coach roof. The lower part of the voltage converter is at the ground potential and the upper part at the high voltage potential. Due to the small spatial separation and the high potential difference voltage transformers are exposed to special loads. If damage to the voltage transformer occurs under unfavorable conditions, it can explode. As a result, components of the voltage converter can be thrown off and damage persons located on a railway station.
Es ist deshalb bereits aus der EP 01 121 495.4 bekannt, den Spannungswandler mit einer druckfesten Hülle zu umschließen und eine Druckentlastungseinrichtung vorzusehen. Bei einer etwaigen Explosion kann das unter Druck stehende Gas aus dem Innenraum über die Druckentlastungseinrichtung nach oben entweichen. Dadurch wird der Druck vermindert, so dass die Explosion nicht zu einem Zerplatzen des äußeren Wandlergehäuses führen kann.It is therefore already known from EP 01 121 495.4 to enclose the voltage converter with a pressure-resistant envelope and to provide a pressure relief device. In case of any explosion, the pressurized gas may escape upwardly from the interior via the pressure relief device. As a result, the pressure is reduced, so that the explosion can not lead to bursting of the outer converter housing.
Auf Grund der speziellen Anordnung dieses neuen Spannungswandlers für Eisenbahntriebwagen, welcher direkt - ohne Abstand - auf dem Dach des Triebwagens montiert wird, ist eine Druckentlastung nach unten nicht möglich.Due to the special arrangement of this new voltage converter for railcars, which is mounted directly - without clearance - on the roof of the railcar, a pressure relief down is not possible.
Um aber diese nach unten gerichtete Druckentlastung zu ermöglichen, ist eine zweite, sekundäre Druckentlastungseinrichtung notwendig.But to allow for this downward pressure relief, a second, secondary pressure relief device is necessary.
Es ist daher die Aufgabe der vorliegenden Erfindung, einen Spannungswandler der eingangs genannten Art zu verbessern, so dass ein unkontrolliertes Zerbersten des Gehäuses auch unter den genannten Montageumständen auf Triebwagen vermieden wird.It is therefore an object of the present invention to improve a voltage converter of the type mentioned, so that an uncontrolled bursting of the housing is avoided even under the above mounting conditions on railcars.
Die erfindungsgemäße Lösung besteht darin, dass im unteren Bereich des Gehäuses eine weitere Druckentlastungseinrichtung vorgesehen ist, die ein Entweichen von unter Druck stehenden Gasen in seitliche Richtungen oder nach unten ermöglicht. Die Erfindung hat den Vorteil, dass somit das im unteren Gehäusebereich unter Druck stehende Gas durch eine separate Druckentlastungseinrichtung abgeleitet und ein Zerbersten des unteren Gehäusebereichs verhindert wird. Die Erfindung beschränkt sich jedoch nicht in einer Verdoppelung der Druckentlastungseinrichtungen nach dem Vorbild der oberen Druckentlastungseinrichtung, denn wenn man die untere Druckentlastungseinrichtung entsprechend ausbildete, würden die unter Druck stehenden Gase direkt auf das Dach des Triebwagens gerichtet sein. Dort käme es entweder zu einer Beschädigung des Daches oder zu einem Rückstau, der wiederum ein Zerplatzen des Wandlergehäuses bewirken könnte. Zur Vermeidung dieser Situation sieht die Erfindung ein seitliches Entweichen der unter Druck stehenden Gase vor, wobei diese auch wieder nach oben umgelenkt werden können.The solution according to the invention is that in the lower region of the housing, a further pressure relief device is provided which allows escape of pressurized gases in lateral directions or downwards. The invention has the advantage that the gas under pressure in the lower housing region is thus discharged through a separate pressure relief device and a bursting of the lower housing region is prevented. However, the invention is not limited to a doubling of the pressure relief devices on the model of the upper pressure relief device, because if you formed the lower pressure relief device accordingly, the pressurized gases would be directed directly to the roof of the railcar. There it would either damage the roof or to a backwater, which in turn could cause bursting of the converter housing. To avoid this situation, the invention provides a lateral escape of the pressurized gases, which can also be deflected upward again.
Selbstverständlich werden die unter Druck stehenden Gase durch die Druckentlastungseinrichtung vorzugsweise in die Fahrzeugmitte abgeleitet, um eine etwa auf den Bahnsteig gerichtete Druckwelle zum Schutz von dort befindlichen Personen zu vermeiden.Of course, the pressurized gases are preferably discharged through the pressure relief device in the center of the vehicle in order to avoid a directed approximately on the platform pressure wave to protect persons located there.
In Ausgestaltung der Erfindung ist vorgesehen, dass die weitere Druckentlastungseinrichtung einen vom Gehäuse seitlich wegführenden Druckentlastungskanal mit einem Druckentlastungsventil aufweist. Mit Hilfe des Druckentlastungskanals können die unter Druck stehenden Gase in die gewünschte Richtung gelenkt werden. Das Druckentlastungsventil verschließt eine Druckentlastungsöffnung, solange kein starker Überdruck im Gehäuseinnenraum herrscht. Dadurch wird der Gehäuseinnenraum gegen das Eindringen von Schmutz und Feuchtigkeit geschützt. Erst wenn der Druck im Innenraum sehr viel höher als der Außendruck wird, öffnet sich das Druckentlastungsventil, um die gewünschte Druckentlastung herbeizuführen und ein Zerbersten des Gehäuses zu verhindern.In an embodiment of the invention, it is provided that the further pressure relief device has a side leading away from the housing pressure relief channel with a pressure relief valve. With the help of the pressure relief channel, the pressurized gases can be directed in the desired direction. The pressure relief valve closes a pressure relief opening, as long as there is no strong pressure in the housing interior. This protects the interior of the housing against the ingress of dirt and moisture. Only when the pressure in the interior becomes much higher than the external pressure, the pressure relief valve opens, to bring about the desired pressure relief and to prevent a bursting of the housing.
In einer einfachen Ausgestaltungsform ist der Druckentlastungskanal in einen seitlichen Gehäusevorsprung eingeformt und erstreckt sich im Inneren des Gehäuses bis unter die Gehäusemitte. Die Ausformung des Druckentlastungskanals kann somit bei der Herstellung des Gehäuses, etwa beim Gießen eines entsprechenden Gehäuseteils, auf kostengünstige Weise erledigt werden. Durch die Erstreckung des Druckentlastungskanals bis zur Gehäusemitte wird eine effektive Druckableitung bei möglichst geringem Strömungswiderstand erreicht.In a simple embodiment, the pressure relief channel is formed in a lateral housing projection and extends inside the housing to below the middle of the housing. The shape of the pressure relief channel can thus be done in a cost effective manner in the manufacture of the housing, such as when casting a corresponding housing part. By extending the pressure relief channel to the center of the housing effective pressure discharge is achieved with the lowest possible flow resistance.
In einer bevorzugten Ausführungsform ist das Druckentlastungsventil als federbelasteter Druckentlastungsdeckel einer Mündungsöffnung des Druckentlastungskanals ausgestaltet. In Weiterbildung der Erfindung ist der Druckentlastungsdeckel durch druckfederbelastete Bolzen mit einem Deckelträger verbunden und durch die Federkraft in Anlage an einer die Mündungsöffnung des Druckentlastungskanals umschließenden Dichtfläche gehalten. Diese Ausführungsform ist einfach, wirkungsvoll und kostengünstig herstellbar.In a preferred embodiment, the pressure relief valve is designed as a spring-loaded pressure relief cover of a mouth opening of the pressure relief channel. In a further development of the invention, the pressure relief cover is connected by pressure spring-loaded bolts with a cover carrier and held by the spring force in abutment with the mouth opening of the pressure relief passage enclosing sealing surface. This embodiment is simple, effective and inexpensive to produce.
Wenn die Bolzen in den Druckentlastungskanal hineinragen und Druckfedern im Innenraum auf den Bolzen angeordnet sind, werden die für die Funktion des Druckentlastungsventils entscheidenden Bauteile vor Umwelteinflüssen geschützt und ihre störungsfreie Funktion gewährleistet.If the bolts protrude into the pressure relief channel and pressure springs are arranged in the interior of the bolt, which are crucial for the function of the pressure relief valve components are protected from environmental influences and their trouble-free operation guaranteed.
In einer anderen Ausführungsform der Erfindung kann das Druckentlastungsventil aber auch als Berstscheibe ausgestaltet sein.In another embodiment of the invention, however, the pressure relief valve can also be designed as a rupture disk.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert. Die Figuren zeigen im Einzelnen:
- Fig. 1:
- eine Seitenansicht eines erfindungsgemäßen Spannungswandlers mit oberer und unterer Druckentlastungseinrichtung;
- Fig. 2:
- derselbe Spannungswandler wie in Fig. 1 in einer Draufsicht von oben;
- Fig. 3:
- einen Schnitt gemäß Linie |||-||| in Fig. 2.
- Fig. 1:
- a side view of a voltage converter according to the invention with upper and lower pressure relief device;
- Fig. 2:
- the same voltage converter as in Figure 1 in a plan view from above.
- 3:
- a section according to line ||| - ||| in Fig. 2.
In Fig. 1 erkennt man das Gehäuse 1 eines Spannungswandlers, der für die Montage auf dem Dach eines elektrisch angetriebenen Eisenbahntriebwagens bestimmt ist. Bei Bahnfahrzeugen ist die für den Spannungswandler zur Verfügung stehende Bauhöhe eingeschränkt, denn es darf ein vorgegebenes Lichtraumprofil nicht überschritten werden. Deswegen wird ein solcher Spannungswandler in der Regel direkt auf dem Dach des Triebwagens stehend montiert, was eine Anordnung einer Druckentlastungseinrichtung auf der Unterseite verbietet.In Fig. 1 shows the
An der Oberseite des Gehäuses erkennt man eine erste Druckentlastungseinrichtung wie sie auch aus dem Stand der Technik bekannt ist. Die obere Druckentlastungseinrichtung besteht aus einem Gehäusedeckel 2, der mittels mehrerer druckfederbelasteter Bolzen 3 gegen einen oberen Gehäuseflansch dichtend angepresst wird. Die oberen Bolzen 3 mit Druckfedern sind mit einer Schutzhülle versehen, so dass die Druckfedern nicht sichtbar sind. Außerdem befindet sich an der Gehäuseoberseite noch ein Hochspannungsanschluss 4.At the top of the housing can be seen a first pressure relief device as it is also known from the prior art. The upper pressure relief device consists of a
Eine erfindungsgemäße weitere Druckentlastungsvorrichtung ist im unteren Bereich des Gehäuses 1 angeordnet. Wie man am besten in Fig. 3 erkennt, weist die weitere Druckentlastungseinrichtung einen Druckentlastungskanal 5 auf, der sich im Inneren des Gehäuses 1 bis unter die Gehäusemitte 6 und in entgegengesetzter Richtung in einen Gehäusevorsprung 7 bis zu einer Mündungsöffnung 8 erstreckt, an der ein Druckentlastungsventil 9 angeordnet ist. Das Druckentlastungsventil 9 ist als federbelasteter Druckentlastungsdeckel 10 ausgestaltet, der mittels federbelasteter Bolzen 11 in Anlage an einer Dichtfläche 12 eines Deckelträgers 13 gehalten wird. Der Deckelträger 13 ist wiederum mit dem Gehäusevorsprung 7 durch Schrauben 14 verbunden. Wie man am besten in Fig. 3 erkennt, ragen die Bolzen 11 in den Druckkanal 5 hinein, wo auch die Druckfedern 15 auf dem Bolzen 11 angeordnet sind. Durch die Anordnung der Druckfedern 15 im Innenraum, wird die Mechanik des Druckentlastungsventils 9 vor Umwelteinflüssen geschützt.A further pressure relief device according to the invention is arranged in the lower region of the
Im Übrigen erkennt man in Fig. 2 noch einen ebenfalls als seitlicher Gehäusevorsprung 7 ausgebildeten Schaltkasten 16 mit elektrischen Anschlüssen 17 zum Abgreifen der vom Spannungswandler bereitgestellten Messspannung im Niederspannungsbereich.Incidentally, FIG. 2 also shows a
Wenn der im Inneren des Gehäuses 1 angeordnete, in den Figuren nicht gezeigte, Spannungswandler explodieren sollte, kommt es zur Entwicklung von unter hohem Druck stehenden Gasen. Diese können nun nicht nur über die obere Druckentlastungseinrichtung entweichen, sondern auch über die untere Druckentlastungseinrichtung. Unter dem Innendruck wird dabei der Druckentlastungsdeckel 10 entgegen dem Druck der Druckfedern 15 nach außen angehoben, so dass zwischen dem Druckentlastungsdeckel 10 und der Dichtfläche 12 des Deckelträgers 13 ein Spalt entsteht, durch den die Gase aus dem Innenraum entweichen können. Dabei werden die Gase aus dem unteren Bereich des Gehäuses 1 aus der Gehäusemitte 6 mit Hilfe des Druckentlastungskanals 5 seitlich abgeleitet, bis sie durch den Gehäusevorsprung 7 hindurch zur Mündungsöffnung 8 gelangen, wo sie zwischen der Dichtfläche 12 des Deckelträgers 13 und dem angehobenen Druckentlastungsdeckel 10 ins Freie gelangen.If the voltage converter, which is arranged in the interior of the
Damit ist die Druckentlastung erfolgt. Nachdem der Innendruck abgebaut ist, überwiegt wieder die Druckkraft der Druckfedern 15, die somit den Druckentlastungsdeckel 10 wieder in die geschlossene Stellung überführen, so dass er an den Dichtflächen 12 anliegt und somit das Gehäuse 1 wieder dichtend verschließt. Hierdurch kann eine mögliche Ausbreitung eines Brandes verhindert werden. Ein Nachbrand im unteren Wandlerbereich wird daher verlöschen.This is the pressure relief. After the internal pressure has been reduced, the compressive force of the compression springs 15, which thus convert the
- 11
- Gehäusecasing
- 22
- Gehäusedeckelhousing cover
- 33
- Bolzenbolt
- 44
- HochspannungsanschlussHigh voltage connection
- 55
- DruckentlastungskanalPressure relief duct
- 66
- Gehäusemittehousing center
- 77
- Gehäusevorsprunghousing projection
- 88th
- Mündungsöffnungmouth
- 99
- DruckentlastungsventilPressure relief valve
- 1010
- DruckentlastungsdeckelPressure relief cover
- 1111
- Bolzenbolt
- 1212
- Dichtflächesealing surface
- 1313
- Deckelträgercover carrier
- 1414
- Schraubenscrew
- 1515
- Druckfederncompression springs
- 1616
- Schaltkastenswitchbox
- 1717
- Elektrische AnschlüsseElectrical connections
Claims (7)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT04024629T ATE395709T1 (en) | 2004-10-15 | 2004-10-15 | VOLTAGE CONVERTER FOR RAILWAY CARS |
| SI200430814T SI1648001T1 (en) | 2004-10-15 | 2004-10-15 | Voltage transformer for railroad locomotive |
| EP04024629A EP1648001B1 (en) | 2004-10-15 | 2004-10-15 | Voltage transformer for railroad locomotive |
| DE502004007157T DE502004007157D1 (en) | 2004-10-15 | 2004-10-15 | Voltage transformer for railway railcars |
| ES04024629T ES2309431T3 (en) | 2004-10-15 | 2004-10-15 | VOLTAGE TRANSFORMATION FOR A RAILWAY LOCOMOTIVE. |
| DK04024629T DK1648001T3 (en) | 2004-10-15 | 2004-10-15 | Railway transformer voltage transformer |
| PL04024629T PL1648001T3 (en) | 2004-10-15 | 2004-10-15 | Voltage transformer for railroad locomotive |
| PT04024629T PT1648001E (en) | 2004-10-15 | 2004-10-15 | Voltage transformer for railroad locomotive |
| CY20081100838T CY1108249T1 (en) | 2004-10-15 | 2008-08-11 | TRANSFORMER VOLTAGE FOR RAILWAY MACHINE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04024629A EP1648001B1 (en) | 2004-10-15 | 2004-10-15 | Voltage transformer for railroad locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1648001A1 true EP1648001A1 (en) | 2006-04-19 |
| EP1648001B1 EP1648001B1 (en) | 2008-05-14 |
Family
ID=34927001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04024629A Active EP1648001B1 (en) | 2004-10-15 | 2004-10-15 | Voltage transformer for railroad locomotive |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1648001B1 (en) |
| AT (1) | ATE395709T1 (en) |
| CY (1) | CY1108249T1 (en) |
| DE (1) | DE502004007157D1 (en) |
| DK (1) | DK1648001T3 (en) |
| ES (1) | ES2309431T3 (en) |
| PL (1) | PL1648001T3 (en) |
| PT (1) | PT1648001E (en) |
| SI (1) | SI1648001T1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106920639A (en) * | 2017-03-16 | 2017-07-04 | 江苏智达高压电气有限公司 | Cast-type mutual inductor is pressed in a kind of environment-friendly type |
| KR102480288B1 (en) | 2021-12-27 | 2022-12-23 | 가부시끼가이샤 도꼬 다까오까 | Transformers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20016065U1 (en) * | 2000-09-16 | 2000-12-21 | Ritz Messwandler Kg | Explosion-proof path converter |
| EP1189249A2 (en) * | 2000-09-16 | 2002-03-20 | Kommanditgesellschaft Ritz Messwandler GmbH & Co. | Explosion-proof voltage transformer |
-
2004
- 2004-10-15 AT AT04024629T patent/ATE395709T1/en active
- 2004-10-15 PT PT04024629T patent/PT1648001E/en unknown
- 2004-10-15 PL PL04024629T patent/PL1648001T3/en unknown
- 2004-10-15 DE DE502004007157T patent/DE502004007157D1/en active Active
- 2004-10-15 DK DK04024629T patent/DK1648001T3/en active
- 2004-10-15 EP EP04024629A patent/EP1648001B1/en active Active
- 2004-10-15 SI SI200430814T patent/SI1648001T1/en unknown
- 2004-10-15 ES ES04024629T patent/ES2309431T3/en active Active
-
2008
- 2008-08-11 CY CY20081100838T patent/CY1108249T1/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20016065U1 (en) * | 2000-09-16 | 2000-12-21 | Ritz Messwandler Kg | Explosion-proof path converter |
| EP1189249A2 (en) * | 2000-09-16 | 2002-03-20 | Kommanditgesellschaft Ritz Messwandler GmbH & Co. | Explosion-proof voltage transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106920639A (en) * | 2017-03-16 | 2017-07-04 | 江苏智达高压电气有限公司 | Cast-type mutual inductor is pressed in a kind of environment-friendly type |
| KR102480288B1 (en) | 2021-12-27 | 2022-12-23 | 가부시끼가이샤 도꼬 다까오까 | Transformers |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2309431T3 (en) | 2008-12-16 |
| DK1648001T3 (en) | 2008-09-08 |
| DE502004007157D1 (en) | 2008-06-26 |
| EP1648001B1 (en) | 2008-05-14 |
| PL1648001T3 (en) | 2008-10-31 |
| PT1648001E (en) | 2008-08-21 |
| SI1648001T1 (en) | 2008-10-31 |
| ATE395709T1 (en) | 2008-05-15 |
| CY1108249T1 (en) | 2014-02-12 |
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