EP0223954A1 - Inductance for a controlled rectifier, particularly for high voltage direct current transmission installations - Google Patents

Inductance for a controlled rectifier, particularly for high voltage direct current transmission installations Download PDF

Info

Publication number
EP0223954A1
EP0223954A1 EP86112961A EP86112961A EP0223954A1 EP 0223954 A1 EP0223954 A1 EP 0223954A1 EP 86112961 A EP86112961 A EP 86112961A EP 86112961 A EP86112961 A EP 86112961A EP 0223954 A1 EP0223954 A1 EP 0223954A1
Authority
EP
European Patent Office
Prior art keywords
feature
choke
winding
valve throttle
core
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
Application number
EP86112961A
Other languages
German (de)
French (fr)
Other versions
EP0223954B1 (en
Inventor
Reinhold Dipl.-Ing. Sundermann
Tibor Dr. Salanki
Paul Kukert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT86112961T priority Critical patent/ATE45438T1/en
Publication of EP0223954A1 publication Critical patent/EP0223954A1/en
Application granted granted Critical
Publication of EP0223954B1 publication Critical patent/EP0223954B1/en
Expired legal-status Critical Current

Links

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
    • H01F27/28—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/18—Rotary transformers

Definitions

  • the invention relates to a valve throttle for high-voltage direct current transmission systems.
  • HVDC systems are generally used today to distribute electrical energy as a link between two three-phase systems; network-controlled controllable semiconductors (thyristors) convert the three-phase current on the transmitting side for transmission into direct current and on the receiving side back into three-phase current.
  • thyristors network-controlled controllable semiconductors
  • the highest achievable thyristor voltage is small compared to the valve voltage necessary for economical transmission.
  • a large number of thyristors must therefore be connected in series for an HVDC valve.
  • a valve choke with a liquid-cooled choke coil and choke core is also connected in series with the individual thyristors.
  • each HVDC valve consists of a larger or smaller number of identical thyristor and throttle modules, which are combined in a tower-like manner in a tower base frame, depending on the voltage to be controlled.
  • a compact valve throttle should be able to be created with simple manufacturing technology, which can nevertheless ensure the insulation strength and freedom from partial discharge required for all load cases between the components which are under different voltages.
  • the arrangement of the entire choke coil winding in a potting block held in a frame by means of mounting pins and thus contact-free to only one leg of the self-potted choke core allows a high level of insulation and maximum creepage distances with a compact and easy-to-assemble construction, and thus a high degree of freedom from partial discharge as well as very good cooling properties.
  • a particularly high degree of compactness, in particular a low overall height, can be achieved for the choke coil mounted on only one leg of the choke core in that it has two layers with a first winding part and a second winding part concentric therewith and with a core potential center connection approximately in the center of the winding, i.e. in the transition from the first winding part is provided for the second winding part; as a result, the voltage stress between the choke core and the choke winding, which is supported in a cantilever manner to one leg of the choke core, can be reduced to half the nominal voltage, and the maximum necessary clearance or creepage distance can also be reduced by half.
  • the particularly good possibility of heat dissipation also contributes to the compactness of the valve throttle according to the invention, in particular due to the casting a cooling pipe through which the cooling medium flows to the surrounding primary winding and, on the other hand, the non-potting of the choke core, material accumulations and thus the risk of increased material tensions due to different temperature expansion coefficients being advantageously avoided in comparison with valve chokes with an integrally molded choke coil and choke core.
  • the clamping frame which is used on the one hand for fastening the throttle core and on the other hand for the self-supporting mounting of the choke coil, is made of plastic, which, in addition to a simple specific shape for the mounting receptacles, also results in additional losses in the sense of great compactness of the valve throttle can be reduced by stray fields.
  • a cutting band throttle core 5 In a ribbed plastic tenter frame 6, the most important parts of the valve throttle are a cutting band throttle core 5 and a casting block 1, into which a primary winding 2, 3 and a secondary winding 4 are cast.
  • the double U-shaped cutting band throttle core 5 held together by tensioning straps 52 is held in the tensioning frame 6 by means of tie rods 51.
  • One left leg of the cutting band choke core 5 is encased without contact by the casting block 1, in which the primary winding 2, 3 and the secondary winding 4 are cast.
  • the casting block 1 is supported in the clamping frame 6 in a cantilever manner to the left leg of the cutting band throttle core 5.
  • Rubber buffers 7 serve as lower receptacles, while funnel-shaped depressions 11 are cast into the casting block 1 as upper receptacles, engage in the stud screws 8, the penetration depth of which can be adjusted relative to the clamping frame 6 and can be fixed after the desired setting depth has been reached.
  • the primary winding 2, 3 of the choke coil is wound in two layers with a first winding part 2 with the outer connection 21 and and a second inner winding part 3 concentric with it, with an outer connection 31 and a core potential center connection M in the middle of the winding, ie in the transition area from the outer first winding part 2 to the inner second winding part 3.
  • a single-layer secondary winding 4 protrudes from the casting block 1 with its outer connections 41, 42.
  • a water-flowed stainless steel cooling tube 9 with the outer connections 91, 92 serves to cool the primary winding 2, 3; for better thermal contact between the cooling tube 9 and the secondary winding 2, 3, which is expediently surrounding in the form of an upright wound copper hollow profile conductor is the space between the cooling tube 9 and the primary winding - as can be seen from the partial section in the left part of Figure 2 - also filled with a potting compound 10.
  • the cooling tube provided here within the primary winding, which is preferably designed as a hollow profile with a cooling tube running inside the hollow profile, it can also be ensured by expanding the pressure of the cooling tube or by shrinking the hollow profile onto the cooling tube that this is in particularly good thermal contact with the primary winding.
  • the leg of the cutting band choke core 5 encompassed by the potting block 1 is held in contact-free distance from the potting block 1 on all sides, so that compared to the usual windings wedged on the choke core, the dimensions are much higher in comparison Partial discharges exist or the throttle module can be built much more compactly with the same good prevention of partial discharges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Rectifiers (AREA)
  • Power Conversion In General (AREA)

Abstract

A compact valve choke that is simple to manufacture, which can, however, ensure the qualities required for all operating modes, namely the needed dielectric strength and freedom from partial discharges between components that are at different voltages. This valve-choke is achieved by having: the choke windings arranged in a supporting frame in a self-supporting manner, in relation to one leg of the choke core; the choke windings potted on all sides, and the potted block supported in the supporting frame by means of fittings; the choke core consists of two generally circular-shaped cores and is secured in the supporting frame; and the choke coil includes two primary windings wound in two layers, with an outer first winding portion and a concentric inner second winding portion as well as, a core-potential center tap roughly in the center of the windings between the first winding portion and the second winding portion.

Description

Die Erfindung bezieht sich auf eine Ventildrossel für Hochspannungs-Gleichstrom-Übertragungsanlagen.The invention relates to a valve throttle for high-voltage direct current transmission systems.

HGÜ-Anlagen werden zur Verteilung von elektrischer Energie heute im allgemeinen als Bindeglied zwischen zwei Drehstromsystemen eingesetzt; netzgeführte steuer­bare Halbleiter (Thyristoren) wandeln den Drehstrom auf der Sendeseite für die Übertragung in Gleichstrom und auf der Empfangsseite wieder in Drehstrom zurück. Die höchste erreichbare Thyristorspannung ist klein im Vergleich zu der für eine wirtschaftliche Übertra­gung notwendigen Ventilspannung. Es müssen daher für ein HGÜ-Ventil eine Vielzahl von Thyristoren in Reihe geschaltet werden. Zur Begrenzung der Stromanstiegs­geschwindigkeit in einem HGÜ-Ventil werden dabei zu den einzelnen Thyristoren jeweils zusätzlich eine Ventildrossel mit flüssigkeitsgekühlter Drosselspule und Drosselkern in Reihe geschaltet.HVDC systems are generally used today to distribute electrical energy as a link between two three-phase systems; network-controlled controllable semiconductors (thyristors) convert the three-phase current on the transmitting side for transmission into direct current and on the receiving side back into three-phase current. The highest achievable thyristor voltage is small compared to the valve voltage necessary for economical transmission. A large number of thyristors must therefore be connected in series for an HVDC valve. To limit the rate of current rise in an HVDC valve, a valve choke with a liquid-cooled choke coil and choke core is also connected in series with the individual thyristors.

Zum Zwecke einer wirtschaftlichen Fertigung und zur Er­zielung nur kurzer Ausfallzeiten im Fall einer notwen­digen Reparatur besteht jedes HGÜ-Ventil je nach zu be­herrschender Spannung aus einer größeren oder kleineren Anzahl identischer Thyristoren- und Drosselmodule, die turmartig in einem Turmgrundrahmen konstruktiv zusammen­gefaßt sind.For the purpose of economical production and to achieve only short downtimes in the event of a necessary repair, each HVDC valve consists of a larger or smaller number of identical thyristor and throttle modules, which are combined in a tower-like manner in a tower base frame, depending on the voltage to be controlled.

Gemäß Aufgabe vorliegender Erfindung soll mit einfachen fertigungstechnischen Mitteln eine kompakte Ventildros­sel geschaffen werden können, die trotzdem die für alle Lastfälle geforderte Isolierfestigkeit und Teilentla­dungsfreiheit zwischen den unter unterschiedlicher Spannung stehenden Bauteilen gewährleisten kann. Die Lösung dieser Aufgabe gelingt durch die Lehre des An­spruchs 1; vorteilhafte Ausgestaltungen der Erfindung sind jeweils Gegenstand der Unteransprüche.According to the object of the present invention, a compact valve throttle should be able to be created with simple manufacturing technology, which can nevertheless ensure the insulation strength and freedom from partial discharge required for all load cases between the components which are under different voltages. This problem is solved by the teaching of claim 1; advantageous embodiments of the invention are the subject of the dependent claims.

Die Anordnung der gesamten Drosselspulenwicklung in einem über Aufnahmezapfen in einem Rahmen gehalterten Vergußblock freitragend und damit berührungslos zu nur einem Schenkel des selbst unvergossenen Drosselkerns erlaubt bei kompaktem und montagefreundlichem Aufbau eine hohe Isolierfähigkeit sowie maximale Kriechstrek­ken und damit eine hohe Teilentladungsfreiheit sowie sehr gute Kühleigenschaften.The arrangement of the entire choke coil winding in a potting block held in a frame by means of mounting pins and thus contact-free to only one leg of the self-potted choke core allows a high level of insulation and maximum creepage distances with a compact and easy-to-assemble construction, and thus a high degree of freedom from partial discharge as well as very good cooling properties.

Eine besonders hohe Kompaktheit, insbesondere geringe Bauhöhe,kann für die auf nur einem Schenkel des Drossel­kerns angebrachte Drosselspule dadurch erreicht werden, daß diese zweilagig mit einem ersten Wicklungsteil und einem dazu konzentrischen zweiten Wicklungsteil sowie mit einem Kernpotentialmittenanschluß etwa in der Wick­lungsmitte, d.h. im Übergang vom ersten Wicklungsteil zum zweiten Wicklungsteil vorgesehen ist; dadurch kann die Spannungsbeanspruchung zwischen dem Drosselkern und der zu dem einen Schenkel des Drosselkerns frei­tragend gehaltenen Drosselwicklung auf die halbe Nenn­spannung reduziert und somit die maximal notwendige Luft- bzw. Kriechstreckenlänge ebenfalls um die Hälfte vermindert werden. Zur Kompaktheit der erfindungsgemä­ßen Ventildrossel trägt auch die besonders gute Wärme­abführmöglichkeit, insbesondere durch das Vergießen eines kühlmediumdurchflossenen Kühlrohres zu der umgeben­den Primärwicklung und andererseits das Nichtvergießen des Drosselkerns bei, wobei zusätzlich im Vergleich zu Ventildrosseln mit einstückig vergossener Drosselspule und Drosselkern in vorteilhafter Weise Materialanhäu­fungen und damit die Gefahr von erhöhten Materialspan­nungen durch unterschiedliche Temperaturausdehnungs­koeffizienten vermieden werden können. Der Spannrahmen, der einerseits zur Befestigung des Drosselkerns und andererseits zu der diesem gegenüber freitragenden Halterung der Drosselspule dient, besteht nach einer weiteren Ausgestaltung der Erfindung aus Kunststoff, wodurch neben einer einfachen spezifischen Formgebung für die Halterungsaufnahmen zusätzlich im Sinne einer großen Kompaktheit der Ventildrossel die Zusatzver­luste durch Streufelder reduziert werden können.A particularly high degree of compactness, in particular a low overall height, can be achieved for the choke coil mounted on only one leg of the choke core in that it has two layers with a first winding part and a second winding part concentric therewith and with a core potential center connection approximately in the center of the winding, i.e. in the transition from the first winding part is provided for the second winding part; as a result, the voltage stress between the choke core and the choke winding, which is supported in a cantilever manner to one leg of the choke core, can be reduced to half the nominal voltage, and the maximum necessary clearance or creepage distance can also be reduced by half. The particularly good possibility of heat dissipation also contributes to the compactness of the valve throttle according to the invention, in particular due to the casting a cooling pipe through which the cooling medium flows to the surrounding primary winding and, on the other hand, the non-potting of the choke core, material accumulations and thus the risk of increased material tensions due to different temperature expansion coefficients being advantageously avoided in comparison with valve chokes with an integrally molded choke coil and choke core. According to a further embodiment of the invention, the clamping frame, which is used on the one hand for fastening the throttle core and on the other hand for the self-supporting mounting of the choke coil, is made of plastic, which, in addition to a simple specific shape for the mounting receptacles, also results in additional losses in the sense of great compactness of the valve throttle can be reduced by stray fields.

Die Erfindung sowie weitere vorteilhafte Ausgestaltun­gen der Erfindung werden im folgenden anhand eines schematisch dargestellten Ausführungsbeispiels in der Zeichnung näher erläutert; darin zeigen:

  • Fig. 1 die Seitenansicht einer Ventildrossel,
  • Fig. 2 die Draufsicht auf die Ventildrossel gemäß Fig.1 mit zur Verdeutlichung teilweise ausgebrochenem Spannrahmen,
  • Fig. 3 eine stirnseitige, teilweise geschnittene Drauf­sicht auf einen die Primär- und Sekundärwicklung sowie deren Kühlrohre enthaltenen, über den einen Schenkel des Drosselkerns in allseitigem Abstand übergesteckten Vergußblock;
  • Fig. 4 die teilweise geschnittene Seitenansicht der An­ordnung gemäß Fig.3.
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:
  • 1 is a side view of a valve throttle,
  • 2 shows the top view of the valve throttle according to FIG. 1 with the clamping frame partially broken away for clarification,
  • 3 shows an end view, partially in section, of a top view of a casting block which contains the primary and secondary windings and their cooling tubes and is pushed over the one leg of the choke core at a distance on all sides;
  • 4 shows the partially sectioned side view of the arrangement according to FIG. 3.

In einem verrippten Kunststoff-Spannrahmen 6 sind als wesentlichste Teile der Ventildrossel ein Schnittband­Drosselkern 5 sowie ein Vergußblock 1 gehaltert, in den eine Primärwicklung 2,3 und ein Sekundärwicklung 4 eingegossen sind. Der durch Spannbänder 52 zusammenge­haltene doppel-U-förmige Schnittband-Drosselkern 5 ist mittels Zugstangen 51 in dem Spannrahmen 6 gehaltert. Der eine linke Schenkel des Schnittband-Drosselkerns 5 wird berührungslos von dem Vergußblock 1 umfaßt, in der die Primärwicklung 2,3 und die Sekundärwicklung 4 eingegossen sind. Der Vergußblock 1 ist über Aufnahmen freitragend zum linken Schenkel des Schnittband Drossel­kerns 5 in dem Spannrahmen 6 gelagert. Als untere Auf­nahmen dienen Gummipuffer 7, während als obere Auf­nahmen in den Vergußblock 1 trichterförmige Vertiefun­gen 11 eingegossen sind, in die Stiftschrauben 8 ein­greifen, deren Eindringtiefe gegenüber dem Spannrahmen 6 verstellbar und nach Erreichen der gewünschten Einstell­tiefe fixierbar ist.In a ribbed plastic tenter frame 6, the most important parts of the valve throttle are a cutting band throttle core 5 and a casting block 1, into which a primary winding 2, 3 and a secondary winding 4 are cast. The double U-shaped cutting band throttle core 5 held together by tensioning straps 52 is held in the tensioning frame 6 by means of tie rods 51. One left leg of the cutting band choke core 5 is encased without contact by the casting block 1, in which the primary winding 2, 3 and the secondary winding 4 are cast. The casting block 1 is supported in the clamping frame 6 in a cantilever manner to the left leg of the cutting band throttle core 5. Rubber buffers 7 serve as lower receptacles, while funnel-shaped depressions 11 are cast into the casting block 1 as upper receptacles, engage in the stud screws 8, the penetration depth of which can be adjusted relative to the clamping frame 6 and can be fixed after the desired setting depth has been reached.

Wie insbes. aus Fig.3,4 ersichtlich, ist die Primärwick­lung 2,3 der Drosselspule zweilagig gewickelt mit einem ersten Wicklungsteil 2 mit dem äußeren Anschluß 21 und und einem dazu konzentrischen zweiten inneren, Wicklungs­teil 3 mit einem äußeren Anschluß 31 sowie einem Kern­potentialmittenanschluß M in der Wicklungsmitte, d.h.im Übergangsbereich von dem äußeren ersten Wicklungsteil 2 zum inneren zweiten Wicklungsteil 3. Eine einlagige Sekundärwicklung 4 ragt mit ihren äußeren Anschlüssen 41,42 aus dem Vergußblock 1 heraus. Zur Kühlung der Pri­märwicklung 2,3 dient ein wasserdurchflossenes Edelstahl­Kühlrohr 9 mit den äußeren Anschlüssen 91,92; zur besse­ren Wärmekontaktierung zwischen dem Kühlrohr 9 und der zweckmäßigerweise in Form eines hochkant gewickelten Kupfer-Hohlprofilleiters umgebenden Sekundärwicklung 2,3 ist der Zwischenraum zwischen dem Kühlrohr 9 und der Pri­märwicklung - wie aus dem Teilschnitt im linken Teil der Fig.2 ersichtlich - ebenfalls mit einer Vergußmasse 10 ausgefüllt. Anstelle des hier vorgesehenen Vergießens des Kühlrohrs innerhalb der vorzugsweise als Hohlprofil mit innerhalb des Hohlprofils verlaufendem Kühlrohr ausgebil­deten Primärwicklung kann auch durch ein Druckaufweiten des Kühlrohrs oder durch ein Aufschrumpfen des Hohlpro­fils auf das Kühlrohr dafür gesorgt werden, daß dies in besonders gutem Wärmekontakt zur Primärwicklung steht.As can be seen in particular from FIG. 3, 4, the primary winding 2, 3 of the choke coil is wound in two layers with a first winding part 2 with the outer connection 21 and and a second inner winding part 3 concentric with it, with an outer connection 31 and a core potential center connection M in the middle of the winding, ie in the transition area from the outer first winding part 2 to the inner second winding part 3. A single-layer secondary winding 4 protrudes from the casting block 1 with its outer connections 41, 42. A water-flowed stainless steel cooling tube 9 with the outer connections 91, 92 serves to cool the primary winding 2, 3; for better thermal contact between the cooling tube 9 and the secondary winding 2, 3, which is expediently surrounding in the form of an upright wound copper hollow profile conductor is the space between the cooling tube 9 and the primary winding - as can be seen from the partial section in the left part of Figure 2 - also filled with a potting compound 10. Instead of the casting of the cooling tube provided here within the primary winding, which is preferably designed as a hollow profile with a cooling tube running inside the hollow profile, it can also be ensured by expanding the pressure of the cooling tube or by shrinking the hollow profile onto the cooling tube that this is in particularly good thermal contact with the primary winding.

Wie aus Fig.2 ersichtlich, ist der von dem Vergußblock 1 umfaßte Schenkel des Schnittband-Drosselkerns 5 in all­seitig berührungslosem Abstand zum Vergußblock 1 gehalten, so daß im Vergleich zu sonst üblichen, auf dem Drossel­kern verkeilten Wicklungen bei gleichen Baumaßen eine wesentlich höhere Sicherheit gegenüber Teilentladungen besteht oder bei gleichbleibend guter Verhütung von Teil­entladungen der Drosselmodul wesentlich kompakter gebaut werden kann.As can be seen from FIG. 2, the leg of the cutting band choke core 5 encompassed by the potting block 1 is held in contact-free distance from the potting block 1 on all sides, so that compared to the usual windings wedged on the choke core, the dimensions are much higher in comparison Partial discharges exist or the throttle module can be built much more compactly with the same good prevention of partial discharges.

Claims (6)

1. Ventildrossel, insbesondere für Hochspannungs-Gleich­strom-Übertragungsanlagen mit den Merkmalen: a) Die Drosselspule (2,3,4) ist in allseitigem Abstand freitragend zu einem Schenkel des Drosselkerns (5) in einem Spannrahmen (6) angeordnet; b) die Drosselspule (2,3,4) ist allwicklungsseitig ver­gossen und der Vergußblock (1) ist über Aufnahmen (Gummipuffer 7, Stiftschrauben 8) in dem Spannrahmen (6) gelagert; c) der Drosselkern (5) besteht aus zwei U-Kernen und ist in dem Spannrahmen (4) befestigt (Zugstangen 51). 1. Valve throttle, in particular for high-voltage direct current transmission systems with the features: a) The choke coil (2, 3, 4) is arranged in a tension frame (6) in a self-supporting manner at all distances from one leg of the choke core (5); b) the choke coil (2, 3, 4) is encapsulated on the winding side and the encapsulation block (1) is mounted in the clamping frame (6) via receptacles (rubber buffer 7, stud screws 8); c) the throttle core (5) consists of two U-cores and is fixed in the clamping frame (4) (tie rods 51). 2. Ventildrossel nach Anspruch 1 mit dem Merkmal: d) Der Drosselkern (5) ist unvergossen. 2. Valve throttle according to claim 1 with the feature: d) The throttle core (5) is not potted. 3. Ventildrossel nach Anspruch 1 und/oder 2 mit dem Merk­mal: e) Die Drosselspule (2,3,4) enthält eine zweilagig ge­wickelte Primärwicklung (2,3) mit einem ersten Wick­lungsteil (2) und einem dazu konzentrischen zweiten Wicklungsteil (3) sowie mit einem Kernpotentialmitten­anschluß (M) etwa in der Wicklungsmitte zwischen dem ersten Wicklungsteil (2) und dem zweiten Wicklungs­teil (3). 3. Valve throttle according to claim 1 and / or 2 with the feature: e) The choke coil (2,3,4) contains a two-layer wound primary winding (2,3) with a first winding part (2) and a concentric second winding part (3) and with a core potential center connection (M) approximately in the winding center between the first winding part (2) and the second winding part (3). 4. Ventildrossel nach zumindest einem der Ansprüche 1-3, mit dem Merkmal: f) Die Primärwicklung (2,3) besteht aus einem Kupfer-­Hohlprofilleiter. 4. Valve throttle according to at least one of claims 1-3, with the feature: f) The primary winding (2,3) consists of a copper hollow profile conductor. 5. Ventildrossel nach Anspruch 4 mit dem Merkmal: g) Der Kupfer-Hohlprofilleiter ist hochkant gewickelt. 6. Ventildrossel nach zumindest einem der Ansprüche 1-5, mit dem Merkmal: h) Die Primärwicklung (2,3) enthält in engem Wärmekon­takt ein kühlmediumdurchflossenes Kühlrohr (9). 7. Ventildrossel nach Anspruch 6 mit dem Merkmal: i) Das Kühlrohr (9) ist mit der umgebenden Primärwick­lung (2 bzw.3) durch eine zwischenliegende Verguß­masse (10) gut wärmeleitend kontaktiert. 8. Ventildrossel nach Anspruch 6 mit dem Merkmal: j) Das Kühlrohr (9) ist, insbesondere bei Verwendung eines Kupfer-Hohlprofilleiters mit innerhalb des Hohlprofils verlaufendem Kühlrohr (9), mit der umgebenden Primärwicklung (2 bzw.3) durch Druckauf­weitung des Kühlrohres (9) und/oder Aufschrumpfen der Primärwicklung (2,3) auf das eingeschlossene Kühlrohr (9) gut wärmeleitend kontaktiert. 9. Ventildrossel nach zumindest einem der Ansprüche 1,8 mit dem Merkmal: k) In den Vergußblock (1) ist neben der Primärwicklung (2,3) im Sinne einer einstellbaren elektromagneti­schen Dämpfung eine an einen Sekundärwiderstand an­schließbare Sekundärwicklung (4) miteingebettet. 10. Ventildrossel nach zumindest einem der Ansprüche 1-9 mit dem Merkmal: 5. Valve throttle according to claim 4 with the feature: g) The copper hollow profile conductor is wound upright. 6. Valve throttle according to at least one of claims 1-5, with the feature: h) The primary winding (2, 3) contains a cooling tube (9) through which cooling medium flows in close thermal contact. 7. Valve throttle according to claim 6 with the feature: i) The cooling tube (9) is in good thermal contact with the surrounding primary winding (2 or 3) by an intermediate potting compound (10). 8. Valve throttle according to claim 6 with the feature: j) The cooling tube (9), in particular when using a copper hollow profile conductor with a cooling tube (9) running within the hollow profile, with the surrounding primary winding (2 or 3) by increasing the pressure of the cooling tube (9) and / or shrinking the primary winding ( 2,3) contacted on the enclosed cooling tube (9) with good thermal conductivity. 9. Valve throttle according to at least one of claims 1,8 with the feature: k) In addition to the primary winding (2, 3) in the sense of adjustable electromagnetic damping, a secondary winding (4) which can be connected to a secondary resistor is also embedded in the casting block (1). 10. Valve throttle according to at least one of claims 1-9 with the feature: l) Der Spannrahmen (6) und/oder weitere Befestigungs­mittel zwischen dem Spannrahmen (6) und den darin gehaltenen Bauteilen bestehen aus Kunststoff.l) The clamping frame (6) and / or further fastening means between the clamping frame (6) and the components held therein are made of plastic.
EP86112961A 1985-10-01 1986-09-19 Inductance for a controlled rectifier, particularly for high voltage direct current transmission installations Expired EP0223954B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86112961T ATE45438T1 (en) 1985-10-01 1986-09-19 VALVE CHOKE, ESPECIALLY FOR HIGH VOLTAGE DIRECT TRANSMISSION SYSTEMS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3535018 1985-10-01
DE3535018 1985-10-01

Publications (2)

Publication Number Publication Date
EP0223954A1 true EP0223954A1 (en) 1987-06-03
EP0223954B1 EP0223954B1 (en) 1989-08-09

Family

ID=6282479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112961A Expired EP0223954B1 (en) 1985-10-01 1986-09-19 Inductance for a controlled rectifier, particularly for high voltage direct current transmission installations

Country Status (6)

Country Link
US (1) US4775848A (en)
EP (1) EP0223954B1 (en)
JP (1) JPS6286706A (en)
AT (1) ATE45438T1 (en)
DE (1) DE3664973D1 (en)
IN (1) IN163747B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459326A1 (en) * 1990-06-01 1991-12-04 ABBPATENT GmbH Liquid cooled choke coil
US5682292A (en) * 1993-05-10 1997-10-28 Siemens Aktiengesellschaft Liquid-cooled valve reactor

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264057A (en) * 1940-08-21 1941-11-25 Gen Electric Coil support for electrical induction apparatus
GB630353A (en) * 1947-09-18 1949-10-11 Gen Electric Co Ltd Improvements in or relating to electric inductances
US2579522A (en) * 1946-02-04 1951-12-25 Ohio Crankshaft Co Transformer construction
US2699531A (en) * 1950-09-02 1955-01-11 Bendix Aviat Corp Transformer core mounting
DE1137148B (en) * 1959-11-04 1962-09-27 Siemens Ag Holding device for ring core pairs, preferably for magnetic amplifiers
FR2106643A5 (en) * 1970-09-18 1972-05-05 Anvar High tension power supply - for linear accelerator ion source
DE2554142A1 (en) * 1975-11-28 1977-06-02 Siemens Ag ARRANGEMENT WITH INDUCTIVE VOLTAGE CONVERTERS
DE2642111A1 (en) * 1976-09-18 1978-03-23 Bosch Gmbh Robert Disc shaped power transformer - has multiturn primary winding and single turn secondary winding, with coolant flowing through both windings
EP0050432A1 (en) * 1980-10-03 1982-04-28 Ford Motor Company Limited Transformer
DE3404457A1 (en) * 1984-02-08 1985-08-08 Siemens AG, 1000 Berlin und 8000 München DEVICE FOR COOLING A MAGNETIC SYSTEM

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258728A (en) * 1966-06-28 Electrical coil and lead wire assembly
US1471096A (en) * 1919-05-08 1923-10-16 Gen Electric Electrical apparatus
US1789229A (en) * 1929-03-09 1931-01-13 Wired Radio Inc Inductance coil
US2413195A (en) * 1942-12-21 1946-12-24 Pacific Electric Mfg Corp High potential current transformer means
US2464029A (en) * 1945-04-07 1949-03-08 Gen Electric Method of making transformers
US2988715A (en) * 1958-09-02 1961-06-13 Zenith Radio Corp Sweep transformer
FR1564935A (en) * 1968-03-15 1969-04-25
DE2133987C3 (en) * 1971-07-08 1974-04-25 Aeg-Elotherm Gmbh, 5630 Remscheidhasten Medium frequency power transformer with a single-turn secondary winding
GB1470902A (en) * 1975-02-28 1977-04-21 Tioxide Group Ltd Electrical series reactor
DE2554143A1 (en) * 1975-11-28 1977-06-02 Siemens Ag VOLTAGE CONVERTER FOR HIGH VOLTAGES
DE3100419C2 (en) * 1981-01-09 1986-07-17 ANT Nachrichtentechnik GmbH, 7150 Backnang High power density transformer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264057A (en) * 1940-08-21 1941-11-25 Gen Electric Coil support for electrical induction apparatus
US2579522A (en) * 1946-02-04 1951-12-25 Ohio Crankshaft Co Transformer construction
GB630353A (en) * 1947-09-18 1949-10-11 Gen Electric Co Ltd Improvements in or relating to electric inductances
US2699531A (en) * 1950-09-02 1955-01-11 Bendix Aviat Corp Transformer core mounting
DE1137148B (en) * 1959-11-04 1962-09-27 Siemens Ag Holding device for ring core pairs, preferably for magnetic amplifiers
FR2106643A5 (en) * 1970-09-18 1972-05-05 Anvar High tension power supply - for linear accelerator ion source
DE2554142A1 (en) * 1975-11-28 1977-06-02 Siemens Ag ARRANGEMENT WITH INDUCTIVE VOLTAGE CONVERTERS
DE2642111A1 (en) * 1976-09-18 1978-03-23 Bosch Gmbh Robert Disc shaped power transformer - has multiturn primary winding and single turn secondary winding, with coolant flowing through both windings
EP0050432A1 (en) * 1980-10-03 1982-04-28 Ford Motor Company Limited Transformer
DE3404457A1 (en) * 1984-02-08 1985-08-08 Siemens AG, 1000 Berlin und 8000 München DEVICE FOR COOLING A MAGNETIC SYSTEM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459326A1 (en) * 1990-06-01 1991-12-04 ABBPATENT GmbH Liquid cooled choke coil
US5682292A (en) * 1993-05-10 1997-10-28 Siemens Aktiengesellschaft Liquid-cooled valve reactor

Also Published As

Publication number Publication date
DE3664973D1 (en) 1989-09-14
ATE45438T1 (en) 1989-08-15
EP0223954B1 (en) 1989-08-09
US4775848A (en) 1988-10-04
IN163747B (en) 1988-11-05
JPS6286706A (en) 1987-04-21

Similar Documents

Publication Publication Date Title
DE19515003C2 (en) Superconducting coil
DE10304606B3 (en) Transformer providing high electrical currents e.g. for magnetization of magnets or magnetic field deformation, has secondary provided by electrically-conductive plate divided by slit to providing current terminals
EP0698277B1 (en) Liquid-cooled valve choke
DE3718383A1 (en) HIGH FREQUENCY POWER TRANSMITTER
EP0557549B1 (en) Toroidal core transformer
EP1423903B1 (en) Electric motor comprising a cooling system
EP0223954B1 (en) Inductance for a controlled rectifier, particularly for high voltage direct current transmission installations
DE4008417C2 (en) Device for connecting the electrical connections of capacitors
DE2926403A1 (en) Thyristor or diode cooling device - has glass fibre reinforced plastics springs to clamp semiconductor device between heat dissipating blocks
EP0459326A1 (en) Liquid cooled choke coil
EP1554741B1 (en) Insulant housing comprising an inner ribbed contour
DE2417125B2 (en) Power transformer
EP0124809B1 (en) Inductive element
DE19723958C2 (en) Tension bandage
EP3721458B1 (en) Electric device with pressing plates for clamping a magnetizable core
EP0932168A2 (en) Coaxial transformer
DE2836283C2 (en) Electrical device winding
DE19627817A1 (en) Pancake coil electronic component
EP0166952B1 (en) High-current transformer with indirect adjustment of tension by an intermediate circuit
DE4008424C2 (en)
DE2544275A1 (en) Liq. cooled induction choke coil - has hollow conductor with galvanic end connection, and concentric inner conductor
DE3040412C2 (en) Winding arrangement for transformers
EP0053691A1 (en) Choke for high current transformers
DE2710112A1 (en) Current transformer with two shaft components - has annular component with iron transformer core passing through central aperture
EP0887906A1 (en) Electrical machine with copper rod conductors

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

17P Request for examination filed

Effective date: 19870407

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB IT LI SE

17Q First examination report despatched

Effective date: 19881107

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 45438

Country of ref document: AT

Date of ref document: 19890815

Kind code of ref document: T

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890825

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19890912

Year of fee payment: 4

REF Corresponds to:

Ref document number: 3664973

Country of ref document: DE

Date of ref document: 19890914

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890928

Year of fee payment: 4

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19891127

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19891218

Year of fee payment: 4

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
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19900919

Ref country code: AT

Effective date: 19900919

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19900920

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900930

Ref country code: CH

Effective date: 19900930

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19910530

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: DE

Effective date: 19910601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 86112961.7

Effective date: 19910527

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050919