EP0075164A1 - Inductance avec enroulements antour de disques du noyau ferreux - Google Patents

Inductance avec enroulements antour de disques du noyau ferreux Download PDF

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Publication number
EP0075164A1
EP0075164A1 EP82108155A EP82108155A EP0075164A1 EP 0075164 A1 EP0075164 A1 EP 0075164A1 EP 82108155 A EP82108155 A EP 82108155A EP 82108155 A EP82108155 A EP 82108155A EP 0075164 A1 EP0075164 A1 EP 0075164A1
Authority
EP
European Patent Office
Prior art keywords
iron core
windings
yokes
supports
choke
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.)
Withdrawn
Application number
EP82108155A
Other languages
German (de)
English (en)
Inventor
Erich Dr. Reiplinger
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.)
Transformatoren Union AG
Original Assignee
Transformatoren Union 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 Transformatoren Union AG filed Critical Transformatoren Union AG
Publication of EP0075164A1 publication Critical patent/EP0075164A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • H01F27/263—Fastening parts of the core 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

  • the invention relates to chokes for large electrical outputs with windings around iron core disks stacked one above the other in the axial direction and with yokes arranged on the end face above and below the windings.
  • compensating reactors serve multiple purposes in the transmission of electrical energy via extensive high-voltage overhead lines or cables. On the one hand, they compensate for the capacitive reactive power of the transmission lines, especially when the network is weakly loaded or idling. On the other hand, they ensure a reduction in line frequency overvoltages in the event of a sudden load shedding or idling network and improve the stability and economy of energy transmission.
  • Compensation choke coils with oil filling are often manufactured with an iron core divided by gaps.
  • the course of the current-voltage characteristic curve is above the nominal voltage for choke coils with economically optimal design for the design with iron core up to 1.2 to 1.3 times the nominal voltage practically linear.
  • the legs of the iron core are divided in the area of the windings by gaps arranged perpendicular to the leg axes.
  • the gaps are formed by inserts made of magnetically neutral material with a very large modulus of elasticity. As a result, the gaps are almost completely filled with rigid material.
  • iron packages between the columns are constructed from transformer sheet metal and layered and glued in parallel or radially.
  • the iron packages and air gap inserts are also glued together.
  • the induction in the iron core of the choke coils is relatively high. Since the induction in the gaps is in a first approximation only lower by the fill factor of the iron packets than in the iron packs themselves, a high magnetic energy density occurs in the gaps. The dimensions, the weight and the losses of the choke coils with an iron core are therefore considerably smaller than in comparable designs of choke coils without an iron core.
  • the gaps In order to keep the eddy current losses in the windings and iron packets, which are caused by the transverse component of the magnetic flux occurring in the vicinity of the gaps, low, the gaps must be sufficiently small. Since the magnetic energy density of the air gaps becomes greater the smaller the air gaps are, the correct dimensioning of the air gaps is also of particular importance with regard to the size of the choke coils.
  • the windings and the iron core of the choke coils are permanently tensioned by press constructions.
  • resilient elements are built into the press construction.
  • the iron core remains a rigid structure directly adjacent to the yokes.
  • transformer windings it is known, for example from DE-PS 20 32 507, to embed the windings in a tubular body made of synthetic resin and to clamp this body similar to the core in a pressing device.
  • the invention is based on the object of influencing the vibrations in the choke from the iron core and passed on via the yokes in such a way that the sound power emitted by the choke is reduced as a result.
  • the supports for each wound leg are combined to form a tubular body comprising them, the windings being made in the material of the tubular body are embedded themselves and the iron core disks are guided in the radial direction by the supports.
  • the supports are arranged in gussets formed adjacent to one another and each represent a three-sided prism, the axial clamping force being absorbed by pull rods, one of which is arranged in each of the supports.
  • plate springs lying directly between the iron core disks are used for the resilient clamping of the iron core disks, wherein a set of a plurality of mutually concentric disk springs is provided between two adjacent iron core disks.
  • the use of corrugated washers can also be useful as a spring element.
  • Chokes designed according to the invention are very advantageous because their manufacture requires only comparatively minor additional expenditure, but avoids a change in the magnetic properties of the choke and thereby ensures a significant reduction in the sound power emitted to the outside.
  • Supports 4 are provided between the yokes 3, which are essentially designed as three-sided prisms and at the same time serve to guide the windings 2. Both the yokes 3 and the windings 2 are clamped to one another in a manner not shown, the supports 4 absorbing pressure forces occurring between the yokes 3 and, preferably located within the supports 4, tension rods 5 are used to generate these pressing forces.
  • the iron core disks 1 which essentially carry the magnetic flux within the windings 2 flank column 6 in the axial direction, in which only magnetically neutral materials are arranged.
  • discs 7 made of corrugated sheet metal serve as spring elements and, together with the adjacent iron core disc 1, represent a vibration system.
  • the mass of the individual iron core disks 1 is determined by the electrical and magnetic requirements and the spring constant of the disks 7 is designed according to the invention so that the natural frequency of the vibration system of an iron core disk with the disks 7 adjacent to it is less than the mains frequency.
  • the windings 2 and the supports are combined in a single component in that the windings 2 are cast in a cast resin block 8 which, in addition to the mounting of the windings and their electrical insulation, also functions as supports between the yokes 5 Fulfills.
  • Tension rods for generating the required pressing force are provided radially outside the cast resin blocks 8 in this arrangement.
  • the magnetostrictive changes in length of the iron core disks 1 and the rhythmic changes in the magnetic forces emanating from them are absorbed resiliently by the disks 7 and damped as a result of the natural frequency below the mains frequency, so that no changes in position or vibrations forced thereby are forced on the yokes 5 will.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
EP82108155A 1981-09-14 1982-09-03 Inductance avec enroulements antour de disques du noyau ferreux Withdrawn EP0075164A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3136421 1981-09-14
DE19813136421 DE3136421A1 (de) 1981-09-14 1981-09-14 Drossel mit wicklungen um eisenkernscheiben

Publications (1)

Publication Number Publication Date
EP0075164A1 true EP0075164A1 (fr) 1983-03-30

Family

ID=6141619

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108155A Withdrawn EP0075164A1 (fr) 1981-09-14 1982-09-03 Inductance avec enroulements antour de disques du noyau ferreux

Country Status (4)

Country Link
EP (1) EP0075164A1 (fr)
JP (1) JPS5860514A (fr)
BR (1) BR8205338A (fr)
DE (1) DE3136421A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104558A1 (fr) * 1982-09-29 1984-04-04 Transformatoren Union Aktiengesellschaft Inductance avec enroulements autour des disques du noyau ferreux
EP2209128A1 (fr) * 2009-01-20 2010-07-21 ABB Research Ltd. Culasse magnétique avec entrefers

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3347490A1 (de) * 1983-12-29 1985-07-11 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Transformatorkern
AT390690B (de) * 1987-12-04 1990-06-11 Elin Union Ag Eisenkernschenkel fuer elektrische drosseln
DE19606253C1 (de) * 1996-02-06 1997-05-07 Aeg Tro Transformatoren Gmbh Verfahren und Vorrichtung zur Herstellung des Kernes einer Drosselspule
CN103426591A (zh) * 2012-05-16 2013-12-04 上海兆启新能源科技有限公司 磁集成电抗器
CN103165266A (zh) * 2013-03-12 2013-06-19 江苏一同环保工程技术有限公司 Esp大功率串联谐振电感
CN106653310A (zh) * 2016-12-29 2017-05-10 江苏越达电力设备有限公司 一种基于树脂材料绝缘的高压干式铁芯串联电抗器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE811977C (de) * 1948-10-02 1951-08-27 Siemens & Halske A G Aus Blechen aufgebauter Kern fuer Spulen
FR1405176A (fr) * 1964-08-28 1965-07-02 Thomson Houston Comp Francaise Perfectionnements à des bobines d'induction
CH416818A (de) * 1965-02-12 1966-07-15 Siemens Ag Albis Vorrichtung zur Halterung von Schnittband-Transformatorkernen
DE1812296A1 (de) * 1968-12-03 1970-06-18 Bbc Brown Boveri & Cie Eisengestell fuer Drosselspulen
DE2225177A1 (de) * 1972-05-24 1973-12-06 Transformatoren Union Ag Lamellierter eisenkern fuer transformatoren
DE2423416A1 (de) * 1974-05-14 1975-11-27 Siemens Ag Schnittbandkern mit spannvorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE811977C (de) * 1948-10-02 1951-08-27 Siemens & Halske A G Aus Blechen aufgebauter Kern fuer Spulen
FR1405176A (fr) * 1964-08-28 1965-07-02 Thomson Houston Comp Francaise Perfectionnements à des bobines d'induction
CH416818A (de) * 1965-02-12 1966-07-15 Siemens Ag Albis Vorrichtung zur Halterung von Schnittband-Transformatorkernen
DE1812296A1 (de) * 1968-12-03 1970-06-18 Bbc Brown Boveri & Cie Eisengestell fuer Drosselspulen
DE2225177A1 (de) * 1972-05-24 1973-12-06 Transformatoren Union Ag Lamellierter eisenkern fuer transformatoren
DE2423416A1 (de) * 1974-05-14 1975-11-27 Siemens Ag Schnittbandkern mit spannvorrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104558A1 (fr) * 1982-09-29 1984-04-04 Transformatoren Union Aktiengesellschaft Inductance avec enroulements autour des disques du noyau ferreux
EP2209128A1 (fr) * 2009-01-20 2010-07-21 ABB Research Ltd. Culasse magnétique avec entrefers
WO2010083924A1 (fr) * 2009-01-20 2010-07-29 Abb Research Ltd Noyau d'aimant à entrefer
CN102282635A (zh) * 2009-01-20 2011-12-14 Abb研究有限公司 有隙磁芯
AU2009337916B2 (en) * 2009-01-20 2013-09-19 Abb Research Ltd Gapped magnet core
US9627118B2 (en) 2009-01-20 2017-04-18 Abb Research Ltd. Gapped magnet core

Also Published As

Publication number Publication date
JPS5860514A (ja) 1983-04-11
BR8205338A (pt) 1983-08-23
DE3136421A1 (de) 1983-03-31

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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

17P Request for examination filed

Effective date: 19830429

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18W Application withdrawn

Withdrawal date: 19840810

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REIPLINGER, ERICH, DR.