EP0092018A1 - Réactance, en particulier réactance isolée de l'air sans noyau magnétique - Google Patents

Réactance, en particulier réactance isolée de l'air sans noyau magnétique Download PDF

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Publication number
EP0092018A1
EP0092018A1 EP82890057A EP82890057A EP0092018A1 EP 0092018 A1 EP0092018 A1 EP 0092018A1 EP 82890057 A EP82890057 A EP 82890057A EP 82890057 A EP82890057 A EP 82890057A EP 0092018 A1 EP0092018 A1 EP 0092018A1
Authority
EP
European Patent Office
Prior art keywords
individual
individual coils
conductor
bundle
coils
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
EP82890057A
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German (de)
English (en)
Other versions
EP0092018B1 (fr
Inventor
Johann Mausz
Alfred Wittenhofer
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.)
Trench Austria GmbH
Original Assignee
SPEZIELEKTRA ESSLINGER KG
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 SPEZIELEKTRA ESSLINGER KG filed Critical SPEZIELEKTRA ESSLINGER KG
Priority to AT82890057T priority Critical patent/ATE17287T1/de
Priority to DE8282890057T priority patent/DE3268234D1/de
Priority to EP82890057A priority patent/EP0092018B1/fr
Publication of EP0092018A1 publication Critical patent/EP0092018A1/fr
Application granted granted Critical
Publication of EP0092018B1 publication Critical patent/EP0092018B1/fr
Expired legal-status Critical Current

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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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • 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
    • H01F27/2823—Wires
    • H01F2027/2838—Wires using transposed wires

Definitions

  • the invention relates to an inductor, in particular a dry-insulated inductor without an iron core, with two or more cylindrical individual coils arranged concentrically one inside the other with the release of cooling gaps, the number of turns of which decreases from the inside to the outside.
  • This design which is characterized by the subdivision of the required total conductor cross-section into a large number of individual wires insulated from one another, is used in the case of choke coils in order to minimize their eddy current losses.
  • choke coils are mainly used today in energy technology as compensation, filter and series choke coils.
  • the different number of turns results in unequal axial winding dimensions, hereinafter referred to as single coil height, of the individual coils, as a result of which different voltage gradients occur in the axial direction on the parallel connected individual coils. These different voltage gradients electrically stress the construction elements lying between the adjacent individual coils.
  • Eliminating this disadvantage would be possible by using different conductor dimensions to achieve the same individual coil heights of the individual coils, but it represents an extremely uneconomical solution due to the large number of relatively small quantities of conductor dimensions required, regardless of whether this is done using specialist conductors, round wires or stranded conductors.
  • a stranded conductor consisting of a number of insulated rectangular specialist conductors to subdivide the cross section within the individual coil.
  • Each of these individual wires takes on different positions in the course of the stranded conductor along its axis and therefore also lies in different induction zones of the coil, but on average all the individual conductors are subject to the same induction conditions, so that there is a uniform current distribution over all of these individual wires of the stranded conductor.
  • the wire ladder offers the possibility of differentiating through the use of individual ladders dimension, with unequal number of turns in individual cylinders, to achieve the same individual coil heights, however, as already mentioned at the beginning, represents an extremely uneconomical solution due to the large number of conductor dimensions required for this in relatively small quantities.
  • the magnetic field in the peripheral zones the winding has a high radial component, so that high eddy current losses are caused in the individual rectangular flat conductors of the twisted conductor lying transversely thereto, and therefore an optimal economic utilization of the current conductors used is not possible.
  • the axial voltage gradient in all individual coils is ensured by achieving the same individual coil heights, this only by pressing to different heights of one and the same conductor bundle is achieved.
  • each round individual wire in the course of the conductor bundle takes on different positions to the bundle axis and therefore also passes through different induction zones of the choke coil, which leads to a homogeneous current distribution within the conductor bundle.
  • the conductor bundle pressed into the desired cross-sectional shape has a covering made of impregnable and permeable insulating material, in particular glass fiber fabric.
  • the conductor bundle can have an electrically highly insulating insert on the side adjacent to the adjacent turn, under the sheath.
  • a choke coil according to the invention is produced by winding the conductor bundle pressed into the required shape in the dry state onto a prepared winding mandrel, axial cooling gaps between the individual cylinders being eliminated by inserting strips, preferably made of glass fiber reinforced plastic.
  • the fully wound and connected coil is subjected to impregnation as required after pre-drying and vacuum treatment, whereby the insulating resin used fills the spaces between the individual conductors of the bundle and mechanically connects adjacent coil windings and individual coils after curing in the hardening furnace.
  • Fig. 1 shows the schematic structure of a choke coil of known construction with, for example, three individual coils, using the same conductor profiles with a height h in all individual coils.
  • the current conductor 14 with the height h is used in all three individual coils 11, 12 and 13.
  • the individual coils 11, 12, 13 due to the decreasing number of turns W1, W2, W3 from the inner individual coil 11 to the outer individual coil 13 different individual coil heights H1, H2, H3.
  • the individual coils 11, 12, 13 are held between a p reßkonstrutation 16, which is occasionally also used as a current distribution cross.
  • FIG. 3 shows a section through a choke coil according to the invention and FIG. 4 explains the structure of the conductor bundle used for the individual coils and its pressing in a rectangular shape.
  • the conductor bundle 34 shown in simplified form in FIG. 4 and used as the starting product consists of a number of round individual conductors 341 provided with the insulation 342, the positions of which in the conductor bundle have been designated 1, 2, 3, 4, 5, 6, 7. As can be seen, the individual conductors 1 to 7 change their position to the axis of the conductor bundle 34 continuously by twisting, twisting or cyclically interchanging.
  • the pressed conductor bundles 34a, 34b, 34c (Fig. 3) are provided with a sheath 344 made of impregnable and permeable insulating material.
  • a sheath 344 made of impregnable and permeable insulating material.
  • an electrically highly insulating insert 343 is arranged under the sheath 344 on one side adjacent to the adjacent turn.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Coils Or Transformers For Communication (AREA)
EP82890057A 1982-04-21 1982-04-21 Réactance, en particulier réactance isolée de l'air sans noyau magnétique Expired EP0092018B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT82890057T ATE17287T1 (de) 1982-04-21 1982-04-21 Drosselspule, insbesondere trockenisolierte drosselspule ohne eisenkern.
DE8282890057T DE3268234D1 (en) 1982-04-21 1982-04-21 Reactor, particularly air isolated reactor without magnetic core
EP82890057A EP0092018B1 (fr) 1982-04-21 1982-04-21 Réactance, en particulier réactance isolée de l'air sans noyau magnétique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82890057A EP0092018B1 (fr) 1982-04-21 1982-04-21 Réactance, en particulier réactance isolée de l'air sans noyau magnétique

Publications (2)

Publication Number Publication Date
EP0092018A1 true EP0092018A1 (fr) 1983-10-26
EP0092018B1 EP0092018B1 (fr) 1986-01-02

Family

ID=8190173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82890057A Expired EP0092018B1 (fr) 1982-04-21 1982-04-21 Réactance, en particulier réactance isolée de l'air sans noyau magnétique

Country Status (3)

Country Link
EP (1) EP0092018B1 (fr)
AT (1) ATE17287T1 (fr)
DE (1) DE3268234D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628882A1 (fr) * 1988-03-18 1989-09-22 Electro Mec Nivernais Bobinage electrique a securite contre l'incendie, et appareil electrique muni d'un tel bobinage
FR2821480A1 (fr) * 2001-02-23 2002-08-30 Alstom Cable conducteur a brins multiples mutuellement isoles avec certains brins non isoles individuellement, et bobine d'inductance pour forts courants incorporant au moins un tel cable
WO2006024057A1 (fr) * 2004-09-03 2006-03-09 Coil Innovation Gmbh Procede et dispositif pour la production d'un enroulement de bobine
CN102203888B (zh) * 2008-06-30 2013-01-23 线圈创新控股有限公司 用于供电电网的、声音排放降低的扼流线圈
WO2016042086A1 (fr) * 2014-09-19 2016-03-24 Forschungszentrum Jülich GmbH Bobine de haute qualité

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE577650C (de) * 1930-05-09 1933-06-02 Aeg Magnetspule fuer grosse Stromstaerken, welche aus mehreren konzentrisch zueinander angeordneten Teilspulen mit gemeinsamen Zu- oder Ableitungen besteht
US2978530A (en) * 1958-06-02 1961-04-04 Acec Conductor for transformer windings
FR1315930A (fr) * 1961-12-15 1963-01-25 Comp Generale Electricite Enroulement pour transformateur ou bobine de self
US3991394A (en) * 1975-12-17 1976-11-09 General Electric Company Helical inductor for power lines and the like
DE2645536A1 (de) * 1975-10-10 1977-04-14 Tocco Stel Breitband-hochfrequenzleistungstransformator
DE2554472A1 (de) * 1975-11-12 1977-05-18 Bbc Brown Boveri & Cie Luftdrosselspule
GB2071921A (en) * 1980-03-05 1981-09-23 Hitachi Ltd Winding for static induction apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE577650C (de) * 1930-05-09 1933-06-02 Aeg Magnetspule fuer grosse Stromstaerken, welche aus mehreren konzentrisch zueinander angeordneten Teilspulen mit gemeinsamen Zu- oder Ableitungen besteht
US2978530A (en) * 1958-06-02 1961-04-04 Acec Conductor for transformer windings
FR1315930A (fr) * 1961-12-15 1963-01-25 Comp Generale Electricite Enroulement pour transformateur ou bobine de self
DE2645536A1 (de) * 1975-10-10 1977-04-14 Tocco Stel Breitband-hochfrequenzleistungstransformator
DE2554472A1 (de) * 1975-11-12 1977-05-18 Bbc Brown Boveri & Cie Luftdrosselspule
US3991394A (en) * 1975-12-17 1976-11-09 General Electric Company Helical inductor for power lines and the like
GB2071921A (en) * 1980-03-05 1981-09-23 Hitachi Ltd Winding for static induction apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628882A1 (fr) * 1988-03-18 1989-09-22 Electro Mec Nivernais Bobinage electrique a securite contre l'incendie, et appareil electrique muni d'un tel bobinage
FR2821480A1 (fr) * 2001-02-23 2002-08-30 Alstom Cable conducteur a brins multiples mutuellement isoles avec certains brins non isoles individuellement, et bobine d'inductance pour forts courants incorporant au moins un tel cable
WO2002069361A1 (fr) * 2001-02-23 2002-09-06 Alstom Cable conducteur a brins multiples mutuellement isoles avec certains brins non isoles individuellement, et bobine d'inductance pour forts courants incorporant au moins un tel cable
WO2006024057A1 (fr) * 2004-09-03 2006-03-09 Coil Innovation Gmbh Procede et dispositif pour la production d'un enroulement de bobine
CN102203888B (zh) * 2008-06-30 2013-01-23 线圈创新控股有限公司 用于供电电网的、声音排放降低的扼流线圈
EP2304744B2 (fr) † 2008-06-30 2022-11-30 Coil Holding GmbH Bobine d'arret pour reseaux de distribution d'energie electrique avec emissions sonores diminuees
WO2016042086A1 (fr) * 2014-09-19 2016-03-24 Forschungszentrum Jülich GmbH Bobine de haute qualité
CN106796840A (zh) * 2014-09-19 2017-05-31 德国尤里希研究中心 高质量线圈
CN106796840B (zh) * 2014-09-19 2018-06-05 德国尤里希研究中心 高质量线圈
US10670670B2 (en) 2014-09-19 2020-06-02 Forschungszentrum Jülich GmbH High-quality coil

Also Published As

Publication number Publication date
ATE17287T1 (de) 1986-01-15
DE3268234D1 (en) 1986-02-13
EP0092018B1 (fr) 1986-01-02

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