WO1990014674A1 - Valve choke, especially for high-voltage dc transmission systems - Google Patents
Valve choke, especially for high-voltage dc transmission systems Download PDFInfo
- Publication number
- WO1990014674A1 WO1990014674A1 PCT/DE1990/000268 DE9000268W WO9014674A1 WO 1990014674 A1 WO1990014674 A1 WO 1990014674A1 DE 9000268 W DE9000268 W DE 9000268W WO 9014674 A1 WO9014674 A1 WO 9014674A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- choke
- core
- valve
- primary winding
- winding
- Prior art date
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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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- 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
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
-
- 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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/303—Clamping coils, windings or parts thereof together
-
- 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
- H01F27/33—Arrangements for noise damping
Definitions
- Valve choke in particular for high-voltage direct current transmission systems
- the invention relates to a valve throttle, in particular for high-voltage direct current transmission systems, according to the preamble of claim 1;
- a valve throttle is known from DE-Al-35 35 018.
- the choke coil is encapsulated on the winding side and the potting block thus formed is mounted in a surrounding plastic tenter frame via rubber buffers;
- the throttling core consists of two U-shaped cores and is also un-potted and fastened in the clamping frame using tie rods.
- the winding is cooled by using waveguides;
- the choke core carries cooling pockets on one side for cooling.
- the entire arrangement constructed in this way is shielded by an outer insulating jacket, at least some of the connecting or connecting pieces of the coolant supply being located within the insulating jacket.
- the choke core is composed of two U-part cores, in particular cutting tape cores
- the insulating capsule is composed of two trouser-shaped insulating part-capsules, with their open leg ends, lying opposite one another, the waist-side openings of which after the respective insertion of the U-part cores. Partial cores can be closed by a lid.
- the molded part according to the invention of a noise insulation hood can be kept small and at the same time serve as a structurally stable component both for holding the easy-to-install winding and in the converter valve itself, the connections of the cooling lines then advantageously lying outside the insulation hood, so that in the In the event of a leak, this is recognized immediately and the accumulation of liquid within the insulation hood can be avoided.
- a liquid-cooled cooling bag is wrapped or inserted in each partial core, in particular a cutting-band partial core, the cooling liquid connections of which are freestanding and individually led out of the insulating capsule that only envelops the throttle core, and thus a readily accessible free design regarding e.g. ensure a series and / or parallel connection.
- FIG. 1 shows a valve throttle according to section II in FIG. 2
- FIG. 2 shows the side view of the valve throttle according to FIG. 1 in section II.
- Two U-shaped throttle partial cores 1 and 2 respectively, with their leg ends lying opposite one another, are inserted from the initially open waist-side openings of the pant-shaped insulating partial capsules 3 and 4, which are not yet closed by covers 31 and 41, and via rubber buffers 32 , 33.34 and 42, 43, 4 respectively.
- the side walls of the insulating partial capsules 3, 4 or the caps 31, 41 closing the waist-side openings of the insulating partial capsules 3, 4 after inserting the throttle partial cores 1, 2 are held at a noise-insulating distance.
- Continuous supporting bolts 8 and 9 are used to connect the insulating subcapsules 3 or with one another or the covers 31 and 41 with the insulating subcapsules 3 and 9, respectively, so that a generally solid supporting frame is formed from the insulating subcapsules and the covers both for the 'choke sub-cores 1 or 2 supported by the rubber buffers 32-34 or 2-44 and for the choke coil consisting of a secondary winding 10 and a primary winding 5.
- spacers 81, 91 projecting laterally from the support bolts 8, 9 are fastened, in particular screwed, between or onto which the conductors of the primary winding 5 are placed in a simple manner and by means of a radially continuous fastening bolt 82 or 92 can then be fixed additionally.
- the insulating partial capsules 3 and / and / or the covers 31 and 41 are provided with integrally molded creeping path extensions at the component separating points that are operationally adjacent to one another.
- both the primary winding 5 is provided with a cooling tube through which cooling liquid is passed, and in a particularly effective but, in terms of production technology, simple way into the choke partial cores 1 or 2, at least one in each case Cooling-fluid-laden cooler bag 6 or 7 is embedded between two layers of the choke core 1 or 2, which is preferably designed as a cutting tape core.
- the coolant connections 61, 71 of the coolant supply lines to the cooler pockets 6, 7 are outside the
- the gap spaces between the inner walls of the insulating partial capsules 3, 4 and the outer walls of the throttle partial cores 1, 2 can be completely or partially insulated, e.g. in the form of inlaid mats or an insulation foam.
Abstract
To provide a highly compact valve choke which can be reliably liquid-cooled and operates quietly even at high induction rates, with a choke core fitted inside a plastic bearing frame and a winding (primary winding 5) surrounding it on all sides at a distance from it, the choke core (1; 2) is surrounded on all sides by a noise-damping insulating capsule (3; 4) acting as the bearing frame which, in turn, is surrounded by the winding (primary winding 5). In one embodiment, the insulating capsule consists of two trouser-shaped insulated capsules (3 and 4) with their open ''legs'' facing one another and the ''waist'' apertures of which can be closed by a cover (31 and 41) after ther insertion of a U-shaped part core (1 and 2).
Description
Ventildrossel, insbesondere für Hochspannungs-Gleichstrom- Übertragungsanlagen Valve choke, in particular for high-voltage direct current transmission systems
Die Erfindung bezieht sich auf eine Ventildrossel, insbesondere für Hochspannungs-Gleichstrom-Übertragungsanlagen, gemäß Ober¬ begriff des Anspruchs 1; eine derartige Ventildrossel ist durch die DE-Al-35 35 018 bekannt.The invention relates to a valve throttle, in particular for high-voltage direct current transmission systems, according to the preamble of claim 1; Such a valve throttle is known from DE-Al-35 35 018.
Im bekannten Fall ist die Drosselspule allwicklungsseitig ver¬ gossen und der derart entstehende Vergußblock über Gummipuffer in einem umgebenden Kunststoff-Spannrahmen gelagert; der Dros- seikern besteht aus zwei U-Teilkernen und ist unvergossen über Zugstangen ebenfalls in dem Spannrahmen befestigt. Die Wicklung wird durch Einsatz von Hohlleitern gekühlt; der Drosselkern trägt zur Kühlung einseitig außen aufgesetzte Kühltaschen. Zur Geräuschdämmung ist die gesamte derartig aufgebaute Anordnung durch eine äußere Dämmummantelung abgeschirmt, wobei zumindest teilweise Anschluß- bzw. Verbindungsstücke der Kühlflüssigkeits- zuführung innerhalb der Dämmummantelung liegen.In the known case, the choke coil is encapsulated on the winding side and the potting block thus formed is mounted in a surrounding plastic tenter frame via rubber buffers; the throttling core consists of two U-shaped cores and is also un-potted and fastened in the clamping frame using tie rods. The winding is cooled by using waveguides; the choke core carries cooling pockets on one side for cooling. For noise insulation, the entire arrangement constructed in this way is shielded by an outer insulating jacket, at least some of the connecting or connecting pieces of the coolant supply being located within the insulating jacket.
Gemäß Aufgabe vorliegender Erfindung soll bei größerer Kompakt- heit und höherer Betriebssicherheit eine bessere Geräuschdäm¬ mung erreicht werden.According to the object of the present invention, better noise insulation should be achieved with greater compactness and greater operational reliability.
Ausgehend von der Erkenntnis, daß die Geräusche der Ventil¬ drossel ausschließlich auf die sogenannte Magnetostriktion des gesättigten Drosselkerns zurückzuführen ist, ist zur Lösung der gestellten Aufgabe lediglich der Drosselkern allseitig von einer gleichzeitig als Tragrahmen diendenden geräuschdämmenden Isolierkapsel umgeben, die ihrerseits von der, an der Trag¬ kapsel gehaltenen Wicklung der Drosselspule außen umschlungen ist; in fertigungs- und montagetechnisch besonders einfacher
Weise ist der Drosselkern aus zwei U-Teilkernen, insbesondere Schnittbandkernen, zusammengesetzt und die Isolierkapsel ent¬ sprechend den U-Teilkernen aus zwei hosenförmigen, mit ihren offenen Beinschenkelenden gegeneinanderliegenden Isolier-Teil- kapseln zusammengesetzt, deren taillenseitigen Öffnungen nach dem jeweiligen Einstecken der U-Teilkerne durch einen Deckel verschließbar sind.On the basis of the knowledge that the noise of the valve throttle is exclusively due to the so-called magnetostriction of the saturated throttle core, only the throttle core is surrounded on all sides by a noise-isolating insulating capsule which also serves as a supporting frame, which in turn is separated from that at the Carrying capsule-held winding of the choke coil is wrapped around the outside; Particularly simple in terms of manufacturing and assembly technology The choke core is composed of two U-part cores, in particular cutting tape cores, and the insulating capsule is composed of two trouser-shaped insulating part-capsules, with their open leg ends, lying opposite one another, the waist-side openings of which after the respective insertion of the U-part cores. Partial cores can be closed by a lid.
Das erfindungsgemäße Formteil einer Geräusch-Dämmhaube kann klein gehalten und als konstruktiv stabiles Bauteil gleich¬ zeitig sowohl der Halterung der einfach anzubringenden Wicklung als auch im Stromrichterventil selbst dienen, wobei die An¬ schlüsse der Kühlleitungen dann vorteilhafter Weise außerhalb der Dämmhaube liegen, so daß im Fall einer Undichtigkeit dies sofort erkannt und ei'n Ansammeln von Flüssigkeit innerhalb der Dämmhaube vermieden werden kann. Für eine weitere Intensivie¬ rung der Kühlung sind in jedem Teilkern, insbesondere Schnitt¬ band-Teilkern, eine flüssigkeitsgekühlte Kühltasche eingewickelt bzw. eingesetzt, deren Kühlflüssigkeitsanschlüsse freistehend aus der nur den Drosselkern einhüllenden Isolierkapsel einzeln herausgeführt sind und somit eine gut zugängliche freie Gestal¬ tung hinsichtlich z.B. einer Reihen- und/oder Parallelschaltung gewährleisten.The molded part according to the invention of a noise insulation hood can be kept small and at the same time serve as a structurally stable component both for holding the easy-to-install winding and in the converter valve itself, the connections of the cooling lines then advantageously lying outside the insulation hood, so that in the In the event of a leak, this is recognized immediately and the accumulation of liquid within the insulation hood can be avoided. For a further intensification of the cooling, a liquid-cooled cooling bag is wrapped or inserted in each partial core, in particular a cutting-band partial core, the cooling liquid connections of which are freestanding and individually led out of the insulating capsule that only envelops the throttle core, and thus a readily accessible free design regarding e.g. ensure a series and / or parallel connection.
Die Erfindung sowie weitere vorteilhafte Ausgestaltungen der Erfindung werden im folgenden anhand eines schematisch darge¬ stellten Ausführungsbeispiels in der Zeichnung näher erläutert; darin zeigen:The invention and further advantageous embodiments of the invention are explained in more detail below with reference to a schematically illustrated embodiment in the drawing; show in it:
FIG 1 eine Ventildrossel gemäß Schnittverlauf I-I in FIG 2, FIG 2 die Seitenansicht der Ventildrossel gemäß FIG 1 im Schnittverlauf I-I.
Zwei U-förmige, jeweils mit ihren Schenkelenden gegeneinander- liegende Drossel-Teilkerne 1 bzw.2 sind von der zunächst offenen, noch nicht durch Deckel 31 bzw.41 verschlossenen taillenseitigen Öffnungen der hosenförmigen Isolier-Teilkapseln 3 bzw.4 eingesteckt und über Gummipuffer 32,33,34 bzw.42, 43, 4 zu. den Seitenwandungen der Isolier-Teilkapseln 3,4 bzw. den nach dem Einstecken der Drossel-Teilkerne 1,2 die taillensei¬ tigen Öffnungen der Isolier-Teilkapseln 3,4 verschließenden Deckel 31,41 in geräuschdämmender Distanz gehalten.1 shows a valve throttle according to section II in FIG. 2, FIG. 2 shows the side view of the valve throttle according to FIG. 1 in section II. Two U-shaped throttle partial cores 1 and 2, respectively, with their leg ends lying opposite one another, are inserted from the initially open waist-side openings of the pant-shaped insulating partial capsules 3 and 4, which are not yet closed by covers 31 and 41, and via rubber buffers 32 , 33.34 and 42, 43, 4 respectively. the side walls of the insulating partial capsules 3, 4 or the caps 31, 41 closing the waist-side openings of the insulating partial capsules 3, 4 after inserting the throttle partial cores 1, 2 are held at a noise-insulating distance.
Zur Verbindung der Isolier-Teilkapseln 3 bzw. untereinander bzw. der Deckel 31 bzw.41 mit den Isolier-Teilkapseln 3 bzw. dienen durchgehende Tragbolzen 8 bzw.9, derart daß aus den Isolier-Teilkapseln und den Deckeln ein insgesamt fester Trag- rahmen sowohl für die 'über die Gummipuffer 32-34 bzw. 2-44 abgestützten Drossel-Teilkerne 1 bzw.2 als auch für die aus einer Sekundärwicklung 10 und einer Primärwicklung 5 bestehende Drosselspule gewährleistet ist. Zur Halterung der Primärwick¬ lung 5 sind an die Tragbolzen 8,9 seitlich abstehende Abstands- halter 81,91 befestigt, insbesondere eingeschraubt, zwischen bzw. auf die in einfacher Weise die Leiter der Primärwicklung 5 aufgelegt und mittels eines radial außen durchgehenden Befesti¬ gungsbolzens 82 bzw.92 anschließend zusätzlich fixiert werden können.Continuous supporting bolts 8 and 9 are used to connect the insulating subcapsules 3 or with one another or the covers 31 and 41 with the insulating subcapsules 3 and 9, respectively, so that a generally solid supporting frame is formed from the insulating subcapsules and the covers both for the 'choke sub-cores 1 or 2 supported by the rubber buffers 32-34 or 2-44 and for the choke coil consisting of a secondary winding 10 and a primary winding 5. In order to hold the primary winding 5, spacers 81, 91 projecting laterally from the support bolts 8, 9 are fastened, in particular screwed, between or onto which the conductors of the primary winding 5 are placed in a simple manner and by means of a radially continuous fastening bolt 82 or 92 can then be fixed additionally.
In für eine hohe Isolierfestigkeit vorteilhafter- Weise sind die als Formteile ausgebildeten Isolier-Teilkapseln 3 bzw. und/ oder die Deckel 31 bzw.41 an den betriebsmäßig aneinanderliegen- den Bauteiltrennstellen mit einstückig angeformten Kriech- Streckenverlängerungen versehen.In an advantageous manner for a high insulating strength, the insulating partial capsules 3 and / and / or the covers 31 and 41 are provided with integrally molded creeping path extensions at the component separating points that are operationally adjacent to one another.
Zur Wärmeabfuhr ist sowohl die Primärwicklung 5 mit einem kühlflüssigkeitsdurchf lossenen Kühlrohr versehen als auch in besonders wirksamer, dabei jedoch fertigungstechnisch einfacher Weise in die Drossel-Teilkerne 1 bzw.2 jeweils zumindest eine
kühlflüssigkeitsdurchflossene Kühltasche 6 bzw.7 zwischen zwei Lagen der vorzugweise als Schnittbandkern ausgeführten Drossel- Teilkerne 1 bzw.2 eingebettet. Wie insbes. aus FIG 2 ersicht¬ lich, sind die Kühlflüssigkeitsanschlüsse 61,71 der Kühlflüssig- keitszuleitungen zu den Kühltaschen 6,7 nach außerhalb derFor heat dissipation, both the primary winding 5 is provided with a cooling tube through which cooling liquid is passed, and in a particularly effective but, in terms of production technology, simple way into the choke partial cores 1 or 2, at least one in each case Cooling-fluid-laden cooler bag 6 or 7 is embedded between two layers of the choke core 1 or 2, which is preferably designed as a cutting tape core. As can be seen in particular from FIG. 2, the coolant connections 61, 71 of the coolant supply lines to the cooler pockets 6, 7 are outside the
Isolierteilkapseln 3,4 einzeln herausgeführt, so daß einerseits eine freie Gestaltung hinsichtlich einer Reihen- bzw. Parallel¬ schaltung von Wasserkreisläufen gegeben ist und andererseits Undichtigkeiten in den Verbindungs- bzw. Anschlußstücken der Kühlleitungen leicht erkannt und behoben werden können.Isolierteilkapseln 3.4 led out individually, so that on the one hand there is a free design with regard to a series or parallel connection of water circuits and on the other hand leaks in the connecting or connecting pieces of the cooling lines can be easily identified and remedied.
Die Spalträume zwischen den inneren Wandungen der Isolier-Teil¬ kapseln 3,4 und den äußeren Wandungen der Drossel-Teilkerne 1,2 können zur weiteren Geräuschdämmung ganz oder teilweise durch Dämmaterial, z.B. in Form von eingelegten Matten oder einer Dämmausschäu ung in einfacher Weise ausgefüllt werden.
The gap spaces between the inner walls of the insulating partial capsules 3, 4 and the outer walls of the throttle partial cores 1, 2 can be completely or partially insulated, e.g. in the form of inlaid mats or an insulation foam.
Claims
1. Ventildrossel, insbesondere für Hochspannungs-Gleichstrom- Übertragungsanlagen mit innerhalb eines Kunststoff-Tragrahmens angeordnetem Drosselkern (1;2) und zumindest einer dazu in allseitigem Abstand am Tragrahmen gehaltener Drosselspulen¬ wicklung (Primärwicklung 5) d a d u r c h g e k e n n ¬ z e i c h n e t, daß der Drosselkern (1;2) allseitig von einer gleichzeitig als Tragrahmen ausgebildeten geräusch- dämmenden Isolierkapsel (3;4) umgeben ist, die ihrerseits von der Drosselspulenwicklung (Primärwicklung 5) umschlungen ist.1. Valve choke, in particular for high-voltage direct current transmission systems with a choke core (1; 2) arranged within a plastic support frame and at least one choke coil winding (primary winding 5) held at all sides on the support frame, characterized in that the choke core (1 ; 2) is surrounded on all sides by a noise-isolating insulating capsule (3; 4), which is also designed as a supporting frame and is in turn wrapped by the choke coil winding (primary winding 5).
2. Ventildrossel mit einem aus zwei U-Teilkernen (1 bzw.2) zusammensetzbaren Drosselkern, insbesondere Schnittbandkern, nach Anspruch 1, g e k e n n z e i c h n e t durch eine entsprechend den U-Teilkernen (1 bzw.2) in zwei hosenförmige, mit ihren offenen Beinschenkelenden gegeneinanderliegenden Isolier-Teilkapseln (3 bzw. ), deren taillenseitigen Öffnungen nach dem jeweiligen Einstecken der U-Teilkerne (1 bzw.2) durch einen Deckel (31 bzw. 1) verschließbar sind.2. Valve throttle with a throttle core that can be assembled from two U-part cores (1 or 2), in particular a cutting tape core, according to claim 1, characterized by a corresponding to the U-part cores (1 or 2) in two pants-shaped, with their open leg ends opposite one another - Part capsules (3 or), the waist-side openings of which can be closed by a lid (31 or 1) after each insertion of the U-part cores (1 or 2).
3. Ventildrossel nach Anspruch 1 und/oder 2, g e k e n n ¬ z e i c h n e t durch eine zusätzliche Dämmaterial-Aus- füllung der Zwischenräume zwischen dem Drosselkern und der umgebenden Isolierkapsel.3. Valve throttle according to claim 1 and / or 2, g e k e n n ¬ z e i c h n e t by an additional insulation material filling the spaces between the throttle core and the surrounding insulating capsule.
4. Ventildrossel nach zumindest einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t, daß die Isolier-Teilkapseln (3 bzw. ) und/oder die Deckel (31 bzw. 1) als Formteile mit an den betriebsmäßig aneinanderliegenden Bauteiltrennstellen angeformten Kriechstreckenverlängerungen ausgebildet sind. 4. Valve throttle according to at least one of claims 1 to 3, characterized in that the insulating partial capsules (3 or) and / or the cover (31 or 1) are formed as molded parts with formed on the operationally adjacent component separation points creepage distances.
5. Ventildrossel nach zumindest einem der Ansprüche 1 bis 4, g e k e n n z e i c h n e t durch zumindest ein in den5. Valve throttle according to at least one of claims 1 to 4, g e k e n n z e i c h n e t by at least one in the
Drosselkern bzw. in die Drossel-Teilkerne (1 bzw.2) jeweils eingebettete f lüssigkeitsgekühlte Kühltasche (6 bzw.7).Choke core or liquid-cooled cooler bag (6 or 7) embedded in the choke sub-cores (1 or 2).
6.. Ventildrossel nach zumindest einem der Ansprüche 1 bis 5, g e k e n n z e i c h n e t durch eine aus Hohlleitern mit6 .. valve throttle according to at least one of claims 1 to 5, g e k e n n z e i c h n e t by one of waveguides with
Flüssigkeitskühlung gebildete Drosselspulenwicklung (Primär¬ wicklung 5).Choke coil winding formed by liquid cooling (primary winding 5).
7. Ventildrossel nach Anspruch 5 und/oder 6, d a d u r c h g e k e n n z e i c h n e t, daß die Verbindungs-/Anschluß- stellen der Flüssigkeitskühlleitungen außerhalb der Isolier¬ kapsel (3 bzw.4) angeordnet sind.7. Valve throttle according to claim 5 and / or 6, d a d u r c h g e k e n n z e i c h n e t that the connection / connection points of the liquid cooling lines are arranged outside the Isolier¬ capsule (3 and 4).
8. Ventildrossel nach zumindest einem der Ansprüche 1 bis 7, d a d u r c h g e k e n n z e i c h n e t, daß die Drosselspulenanordnung (Primärwicklung 5) über Tragbolzen (8,9) an der Isolierkapsel (3 bzw. ) gehalten ist. 8. Valve choke according to at least one of claims 1 to 7, d a d u r c h g e k e n n z e i c h n e t that the choke coil arrangement (primary winding 5) via supporting bolts (8,9) is held on the insulating capsule (3 or).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90905426T ATE103101T1 (en) | 1989-05-19 | 1990-04-05 | VALVE CHOKE, ESPECIALLY FOR HIGH VOLTAGE DIRECT TRANSMISSION SYSTEMS. |
| DE90905426T DE59005031D1 (en) | 1989-05-19 | 1990-04-05 | VALVE THROTTLE, ESPECIALLY FOR HIGH VOLTAGE DC TRANSMISSION SYSTEMS. |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG8906224.8U | 1989-05-19 | ||
| DE8906224U DE8906224U1 (en) | 1989-05-19 | 1989-05-19 | |
| EP89109073.0 | 1989-05-19 | ||
| EP89109073 | 1989-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1990014674A1 true WO1990014674A1 (en) | 1990-11-29 |
Family
ID=25954803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1990/000268 WO1990014674A1 (en) | 1989-05-19 | 1990-04-05 | Valve choke, especially for high-voltage dc transmission systems |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0472527B1 (en) |
| DE (1) | DE59005031D1 (en) |
| WO (1) | WO1990014674A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0510252A1 (en) * | 1991-04-26 | 1992-10-28 | International Business Machines Corporation | Coaxial isolation mounting of a toroidal transformer |
| EP0547886A1 (en) * | 1991-12-18 | 1993-06-23 | Chelsing Assemblies Limited | Electric component housing assembly |
| WO1994027304A1 (en) * | 1993-05-10 | 1994-11-24 | Siemens Aktiengesellschaft | Liquid-cooled valve choke |
| CN103680843A (en) * | 2013-12-03 | 2014-03-26 | 柳州市五环水暖器材经营部 | Silicon steel wire iron core transformer capable of removing eddy current |
| CN104157412A (en) * | 2014-08-28 | 2014-11-19 | 东莞市大忠电子有限公司 | High-voltage transformer and manufacturing method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19914020C1 (en) * | 1999-03-19 | 2000-08-31 | Siemens Ag | Coil-wound hardware items noise reduction procedure especially for chokes and transformers |
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1990
- 1990-04-05 EP EP90905426A patent/EP0472527B1/en not_active Expired - Lifetime
- 1990-04-05 DE DE90905426T patent/DE59005031D1/en not_active Expired - Fee Related
- 1990-04-05 WO PCT/DE1990/000268 patent/WO1990014674A1/en active IP Right Grant
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| US3199177A (en) * | 1955-05-24 | 1965-08-10 | Magnetics Inc | Method for encasing magnetic cores |
| US3374453A (en) * | 1966-12-27 | 1968-03-19 | Westinghouse Electric Corp | Electrical inductive apparatus |
| FR2147816A1 (en) * | 1971-07-30 | 1973-03-11 | Landis & Gyr Ag | |
| US4673907A (en) * | 1985-12-19 | 1987-06-16 | General Electric Company | Transformer with amorphous alloy core having chip containment means |
| US4663604A (en) * | 1986-01-14 | 1987-05-05 | General Electric Company | Coil assembly and support system for a transformer and a transformer employing same |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 11, no. 182 (E-515)(2629) 11 Juni 1987, & JP-A-62 14408 (HITACHI LTD) siehe das ganze Dokument * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0510252A1 (en) * | 1991-04-26 | 1992-10-28 | International Business Machines Corporation | Coaxial isolation mounting of a toroidal transformer |
| EP0547886A1 (en) * | 1991-12-18 | 1993-06-23 | Chelsing Assemblies Limited | Electric component housing assembly |
| WO1994027304A1 (en) * | 1993-05-10 | 1994-11-24 | Siemens Aktiengesellschaft | Liquid-cooled valve choke |
| US5682292A (en) * | 1993-05-10 | 1997-10-28 | Siemens Aktiengesellschaft | Liquid-cooled valve reactor |
| CN103680843A (en) * | 2013-12-03 | 2014-03-26 | 柳州市五环水暖器材经营部 | Silicon steel wire iron core transformer capable of removing eddy current |
| CN104157412A (en) * | 2014-08-28 | 2014-11-19 | 东莞市大忠电子有限公司 | High-voltage transformer and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0472527B1 (en) | 1994-03-16 |
| DE59005031D1 (en) | 1994-04-21 |
| EP0472527A1 (en) | 1992-03-04 |
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