CH337935A - High-current choke coil for direct current systems - Google Patents
High-current choke coil for direct current systemsInfo
- Publication number
- CH337935A CH337935A CH337935DA CH337935A CH 337935 A CH337935 A CH 337935A CH 337935D A CH337935D A CH 337935DA CH 337935 A CH337935 A CH 337935A
- Authority
- CH
- Switzerland
- Prior art keywords
- choke coil
- current
- conductor
- coil
- direct current
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
- H01F37/005—Fixed inductances not covered by group H01F17/00 without magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/08—Fixed transformers not covered by group H01F19/00 characterised by the structure without magnetic core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Description
<Desc/Clms Page number 1>
Hochstromdrosselspule für Gleichstromanlagen Die Erfindung betrifft eine Hochstromdrossel- spule für Gleichstromanlagen, mit mehreren, die Spule in axialer Richtung durchsetzenden Spannbolzen. Die Erfindung besteht darin, dass die Spule aus axial aneinandergereihten, durch Isolierzwischen- lagen voneinander getrennten Windungen eines flachen, hochkantgewickelten Leiters besteht, der Bohrungen aufweist, durch welche die Spannbolzen hindurchgehen.
Durch ein solches Zusammenpressen von Windungen eines flachen Leiters mittels Spannbolzen, die durch das Leitermaterial selbst hindurchgehen, lässt sich ein starrer hohlzylinderförmiger Spulenkörper ausserordentlich hoher mechanischer Festigkeit herstellen, was bei den Hochstromdrossel- spulen von grosser Bedeutung ist, da diese, in Gleichstromanlagen zum Ausgleichen und Glätten des Stromes sowie zum Begrenzen des Stromanstieges im Kurzschlussfall dienenden Drosselspulen beträchtlichen Beanspruchungskräften ausgesetzt sind. Diese rühren einerseits von den mitunter sehr hohen Kurzschlussströmen und anderseits von den dauernd pulsierenden magnetischen Kräften der Oberwellen her.
Vorzugsweise beträgt die Breite des zum Beispiel aus Aluminium oder einer Aluminiumlegierung hergestellten flachen Leiters der erfindungsgemässen Drosselspule 1/, bis 1(" deren Innendurchmessers. Der Leiter darf deshalb so breit sein, weil beim Gleichstrom die Oberwellen nur unwesentliche Zusatzverluste verursachen. Für die Herstellung einer Spule mit einem Innendurchmesser von 1 m kann beispielsweise Flachmaterial von 10 cm Breite, also '/1o des Innendurchmessers, und 10 bis 20 mm Dicke verwendet werden.
Da die erfindungsgemässe Hochstromdrosselspule auch zur Begrenzung des Stromanstieges im Kurzschlussfall dient, ist neben der mechanischen Festig,- keit ferner von Vorteil, dass beim Kurzschluss der Gleichstromwiderstand infolge Stromverdrängung um ein Mehrfaches ansteigt, was eine zusätzliche Dämpfung des Kurzschlusses bewirkt.
Es empfiehlt sich, den Leiter der erfindungsgemässen Drosselspule in bezug auf seine Breite jeweils in der Mitte zu durchbohren. Es können dann Spannbolzen aus gewöhnlichem Stahl verwendet werden, da in der Leitermitte die Feldstärke im Vergleich zum Hauptfeld sehr gering ist.
In der Zeichnung ist als Ausführungsbeispiel des Erfindungsgegenstandes ein Teil einer Hochstromdrosselspule vereinfacht dargestellt, und zwar in Fig. 1 in Ansicht und in Fig. 2 im Längsschnitt.
Mit 1 ist ein die Spule bildender, hochkantgewickelter, flacher Aluminiumleiter bezeichnet, der an seinen beiden Enden 2, 3 mit den nicht gezeigten Anschlüssen verbunden ist. Der Leiter 1 weist gleichmässig am Umfang der Spule verteilte und in der Mitte des Leiters 1 angeordnete Bohrungen 4 auf, durch die mit einer Isolierhülse 5 versehene Spannbolzen 6 hindurchgehen. Die einzelnen Windungen des Leiters 1 sind voneinander durch Isolierringe 7 getrennt und mittels Isolierscheiben 8, Presstellern 9, Druckfedern 10, Druckscheiben 11 und Muttern 12 zusammengepresst.
<Desc / Clms Page number 1>
High-current choke coil for direct current systems The invention relates to a high-current choke coil for direct current systems, with several clamping bolts penetrating the coil in the axial direction. The invention consists in that the coil consists of axially strung together turns of a flat, edgewise-wound conductor, separated from one another by insulating layers, which has bores through which the tensioning bolts pass.
Such a compression of turns of a flat conductor by means of tensioning bolts, which pass through the conductor material itself, allows a rigid, hollow cylindrical coil body to be produced with an extraordinarily high mechanical strength, which is of great importance for high-current choke coils, as these are used in DC systems for balancing and Smoothing the current as well as limiting the current rise in the event of a short circuit serving choke coils are exposed to considerable stress forces. These arise on the one hand from the sometimes very high short-circuit currents and on the other hand from the continuously pulsating magnetic forces of the harmonics.
The width of the flat conductor, made for example of aluminum or an aluminum alloy, of the choke coil according to the invention is preferably 1 /, to 1 ("its inner diameter. The conductor may therefore be so wide because the harmonics cause only insignificant additional losses with direct current Coil with an inside diameter of 1 m, for example, flat material 10 cm wide, that is 1/10 of the inside diameter, and 10 to 20 mm thick can be used.
Since the high-current choke coil according to the invention also serves to limit the increase in current in the event of a short circuit, in addition to mechanical strength, it is also advantageous that in the event of a short circuit, the direct current resistance rises several times as a result of current displacement, which causes additional damping of the short circuit.
It is advisable to drill through the head of the choke coil according to the invention in the middle in relation to its width. Tensioning bolts made of ordinary steel can then be used, since the field strength in the middle of the conductor is very low compared to the main field.
In the drawing, as an exemplary embodiment of the subject matter of the invention, part of a high-current choke coil is shown in simplified form, namely in FIG. 1 in a view and in FIG. 2 in longitudinal section.
1 with an edgewise wound, flat aluminum conductor which forms the coil and which is connected at its two ends 2, 3 to the connections (not shown). The conductor 1 has bores 4 evenly distributed around the circumference of the coil and arranged in the center of the conductor 1, through which the clamping bolts 6 provided with an insulating sleeve 5 pass. The individual turns of the conductor 1 are separated from one another by insulating rings 7 and are pressed together by means of insulating washers 8, pressure plates 9, compression springs 10, pressure washers 11 and nuts 12.
Claims (1)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH337935T | 1956-03-06 | ||
CH2901717X | 1956-03-06 | ||
CH1168801X | 1956-03-06 | ||
CH802856X | 1956-03-06 | ||
CH1042745X | 1956-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH337935A true CH337935A (en) | 1959-04-30 |
Family
ID=50190082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH337935D CH337935A (en) | 1956-03-06 | 1956-03-06 | High-current choke coil for direct current systems |
Country Status (5)
Country | Link |
---|---|
US (1) | US2901717A (en) |
CH (1) | CH337935A (en) |
DE (1) | DE1042745B (en) |
FR (1) | FR1168801A (en) |
GB (1) | GB802856A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3046505C2 (en) * | 1980-12-10 | 1985-09-19 | Transformatoren Union Ag, 7000 Stuttgart | Suction choke for high-current transformers |
DE4305521C2 (en) * | 1993-02-17 | 1996-02-01 | Aeg Tro Transformatoren Gmbh | Disc winding for an iron-core, coolant-cooled choke coil |
DE112016007527B4 (en) * | 2016-12-19 | 2024-08-01 | Mitsubishi Electric Corporation | AIR CORE CHOKE COIL FOR A RAIL VEHICLE |
DE112017007718T5 (en) * | 2017-07-03 | 2020-03-19 | Mitsubishi Electric Corporation | Air core choke coil for a vehicle |
JP6625277B2 (en) * | 2017-07-06 | 2019-12-25 | 三菱電機株式会社 | Vehicle reactor |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US848676A (en) * | 1906-03-17 | 1907-04-02 | Joseph Murgas | Electric transformer. |
DE333490C (en) * | 1919-06-27 | 1921-03-01 | Siemens & Halske Akt Ges | Overvoltage protection coil |
CH147585A (en) * | 1929-04-26 | 1931-06-15 | Siemens Ag | Choke coil. |
DE550581C (en) * | 1929-10-10 | 1932-05-12 | Siemens Schuckertwerke Akt Ges | Choke coil for high voltages with bracing bolts made of insulating material and several disc coil groups lined up in an axial direction |
US2180513A (en) * | 1936-07-27 | 1939-11-21 | Kuhlman Electric Company | Apparatus for relieving stresses in welds |
DE920261C (en) * | 1942-04-01 | 1954-11-18 | Siemens Ag | Winding composed of disc coils with conductor bundles consisting of more than two parallel partial conductors |
DE808138C (en) * | 1948-10-02 | 1951-07-12 | Siemens & Halske A G | Coil wound with a square conductor, especially a choke coil |
DE931298C (en) * | 1953-04-02 | 1955-08-04 | Huels Chemische Werke Ag | Short-circuit current limiting reactor |
-
1956
- 1956-03-06 CH CH337935D patent/CH337935A/en unknown
-
1957
- 1957-02-14 DE DEM33226A patent/DE1042745B/en active Pending
- 1957-02-15 GB GB5286/57A patent/GB802856A/en not_active Expired
- 1957-02-28 US US643081A patent/US2901717A/en not_active Expired - Lifetime
- 1957-03-04 FR FR1168801D patent/FR1168801A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1168801A (en) | 1958-12-17 |
US2901717A (en) | 1959-08-25 |
GB802856A (en) | 1958-10-15 |
DE1042745B (en) | 1958-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH337935A (en) | High-current choke coil for direct current systems | |
AT201697B (en) | High-current choke coil for direct current systems | |
DE911293C (en) | Inductance adjustable by transverse pre-magnetization | |
DE7804181U1 (en) | DEVICE FOR MANUFACTURING A COLD-STRENGTHEN CYLINDER | |
AT204634B (en) | Method for manufacturing a yoke for a magnetic circuit and yoke manufactured according to this method | |
AT143796B (en) | Transformer, especially for small X-ray machines. | |
DE612315C (en) | Circuit for two or more anodes of mercury vapor rectifiers working in parallel, in which each of these anodes is fed by a special secondary winding of the same phase of a common transformer | |
AT62895B (en) | Heat exchange device for liquid and gaseous substances together with the process for their production. | |
DE364904C (en) | High-voltage transformer or choke coil with special windings in the channels penetrating the iron core | |
AT154017B (en) | Method and device for the production of straight, cold twisted bars, rods or the like. | |
DE841012C (en) | Adjustable toroidal inductance | |
AT105282B (en) | Transformer arrangement in Scott's circuit. | |
AT114377B (en) | Dry rectifier connected to a small transformer. | |
AT118557B (en) | High voltage transformer. | |
DE731062C (en) | Winding arrangement for transformers | |
AT118549B (en) | Structure arrangement for transformers, especially current or voltage converters with staggered induction systems. | |
AT18090B (en) | Process for the production of concrete bodies, such as columns and. like | |
AT146054B (en) | Double moving coil measuring device. | |
DE349658C (en) | Cylindrical insulating sleeve made of wrapped hard paper, cut open in length | |
DE1237214B (en) | Holding and pressing device for concentric transformer or inductor coil windings | |
AT132912B (en) | Insulated conductor, especially for coil winding. | |
AT112887B (en) | Coil arrangement for transformers with a core consisting of several mutually adjustable parts. | |
AT283497B (en) | Winding current transformer with auxiliary electrode | |
DE844483C (en) | Process for the production of a current transformer with a one-piece insulating body | |
AT121123B (en) | Circuit for two or more anodes of mercury vapor rectifiers working in parallel. |