EP0043523B1 - Bobine électrique d'inductance shunt pour ligne de transport d'énergie électrique et procédé de réalisation d'une telle bobine - Google Patents

Bobine électrique d'inductance shunt pour ligne de transport d'énergie électrique et procédé de réalisation d'une telle bobine Download PDF

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Publication number
EP0043523B1
EP0043523B1 EP81104972A EP81104972A EP0043523B1 EP 0043523 B1 EP0043523 B1 EP 0043523B1 EP 81104972 A EP81104972 A EP 81104972A EP 81104972 A EP81104972 A EP 81104972A EP 0043523 B1 EP0043523 B1 EP 0043523B1
Authority
EP
European Patent Office
Prior art keywords
nut
washers
tie rods
skirt
screwed
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.)
Expired
Application number
EP81104972A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0043523A1 (fr
Inventor
Gérard Messe
Michel Faure
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.)
Alstom SA
Original Assignee
Alsthom Atlantique SA
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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Publication of EP0043523A1 publication Critical patent/EP0043523A1/fr
Application granted granted Critical
Publication of EP0043523B1 publication Critical patent/EP0043523B1/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
    • 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

Definitions

  • the present invention relates to a shunt inductor.
  • Such coils are used to compensate for the capacitive reactive power of long lines of high voltage electrical energy.
  • a known type of such a shunt inductor comprises a magnetic core constituted by a stack of laminated iron sections separated from each other by airgaps made of non-magnetic material, in electric winding surrounding said core and a magnetic mantle for closing. of magnetic flux.
  • a magnetic coat is a laminated magnetic circuit comprising two legs parallel to the axis of the coil joined by two yokes, the core being between the midpoints of the two yokes.
  • Another known solution (see for example document FR-A-2 013 335) consists in placing one or more tie rods in the central hole of the core. From the point of view of saving space and saving copper, this solution is ideal, on the other hand there is a heating of the fixing system because of the eddy current losses in the tie rod, when there is a single tie rod.
  • the present invention therefore relates to an electric shunt inductor for an electric power transmission line comprising a magnetic core around which is placed in electric winding, and a magnetic mantle for closing the magnetic flux comprising two branches parallel to the axis of the winding joined by two yokes, said magnetic core comprising a central hole and being constituted by a stack of iron sections separated from each other by airgaps made of non-magnetic material, the yokes being tightened against the magnetic core and said branches by means of several tie rods in non-magnetic material passing through said central hole and passing through said cylinder heads, characterized in that the tie rods are seven in number, one of which is situated in the axis of the central hole of the core and six others regularly distributed around, spacer washers being placed regularly along the tie rods so as to prevent their vibration , and in that a bowl-shaped part, the bottom of which is pierced with seven holes is threaded on one of the ends known as the upper end of the tie rods, nuts screwed
  • FIG. 3 we see a small part of the magnetic core of a shunt inductor.
  • a core consists of a stack of sections of laminated iron, two sections of which: 1 and 2 are shown in FIG. 3.
  • the sections are cylindrical and com carry a central hole 3.
  • the sections are separated from each other by air gaps 4 made of non-magnetic material.
  • At the top and at the base of the magnetic core are located an upper yoke and a lower yoke joined at their ends by vertical branches, these yokes and these vertical branches are not shown in FIG. 3.
  • tie rods 5, 6, 7, 8, 9, 10 and 11 are used, of which only three are visible in FIGS. 1 and 3.
  • the tie rod 6 is placed in the axis of the core and the others distributed regularly around.
  • Figure 1 shows the device for exercising and maintaining traction in the tie rods.
  • the part located to the left of the axis 26 of the winding is shown before tightening and the part located to the right of the axis 26 is shown after tightening.
  • a part 12 in the form of a bowl comprising a threaded external cylindrical wall.
  • Nuts 13 serve to retain the part 12 on the tie rods.
  • a nut 14 in two independent parts 14A and 14B is screwed onto the external wall of the bowl-shaped part 12, and the lower end of the part 14B of the nut is supported on washers 15 which have a certain axial elasticity .
  • the washers 15 rest on the upper yoke, not shown, by means of a support distribution plate 16 and of insulation 17.
  • spacer washers 24 are placed on the tie rods: three washers are placed at the level of each section of iron. For example, at section level 2 (fig. 3) a washer is placed on the tie rods 7, 8 and 10 as seen in FIG. 2. In FIG. 3 we see the washer 24 on the tie rod 7 and a part of the washer located on the tie rod 8 placed behind the tie rods 5 and 6. At the level of the next section, for example the section 1, washers will be placed on the tie rods 5, 9 and 11. These washers are supported on an insulating cylinder 25 placed inside the central hole of each section.
  • the clamping device according to the invention thus occupies very little space and the heating of the tie rods is very low. Furthermore, the number of tie rods equal to seven is that which allows the best filling of the hole for a given diameter and it also allows a very practical setting of the tie rods by means of three washers offset alternately at the level of the successive sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Regulation Of General Use Transformers (AREA)
EP81104972A 1980-07-04 1981-06-26 Bobine électrique d'inductance shunt pour ligne de transport d'énergie électrique et procédé de réalisation d'une telle bobine Expired EP0043523B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8014918A FR2486319B1 (enrdf_load_stackoverflow) 1980-07-04 1980-07-04
FR8014918 1980-07-04

Publications (2)

Publication Number Publication Date
EP0043523A1 EP0043523A1 (fr) 1982-01-13
EP0043523B1 true EP0043523B1 (fr) 1984-11-14

Family

ID=9243865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104972A Expired EP0043523B1 (fr) 1980-07-04 1981-06-26 Bobine électrique d'inductance shunt pour ligne de transport d'énergie électrique et procédé de réalisation d'une telle bobine

Country Status (9)

Country Link
US (1) US4415874A (enrdf_load_stackoverflow)
EP (1) EP0043523B1 (enrdf_load_stackoverflow)
JP (1) JPS6048891B2 (enrdf_load_stackoverflow)
BR (1) BR8104271A (enrdf_load_stackoverflow)
CA (1) CA1164540A (enrdf_load_stackoverflow)
DE (1) DE3167177D1 (enrdf_load_stackoverflow)
FR (1) FR2486319B1 (enrdf_load_stackoverflow)
IN (1) IN156219B (enrdf_load_stackoverflow)
RO (1) RO85019B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6082876A (ja) * 1983-10-13 1985-05-11 Hitachi Cable Ltd 移動体位置検知装置
DE3347490A1 (de) * 1983-12-29 1985-07-11 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Transformatorkern
FR2647979B1 (fr) * 1989-05-30 1992-01-03 Electricite De France Procede et dispositif de resserrage du circuit magnetique d'une machine electrique tournante
US6087626A (en) 1998-02-17 2000-07-11 Illinois Tool Works Inc. Method and apparatus for welding
AT407205B (de) * 1998-04-27 2001-01-25 Va Tech Elin Transformatoren G Drosselspule
CN108597799A (zh) * 2018-06-04 2018-09-28 三变科技股份有限公司 电抗器铁芯压紧结构及压紧装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208810B (de) * 1960-11-29 1966-01-13 Licentia Gmbh Vorrichtung zur gemeinsamen Pressung der Kerne und Wicklungen von grossen Transformatoren
FR1285185A (fr) * 1961-03-31 1962-02-16 Thomson Houston Comp Francaise Perfectionnements aux transformateurs
US3175174A (en) * 1961-04-11 1965-03-23 Gen Electric Centering and fastening means for internally supported transformer
DE1174899B (de) * 1961-07-29 1964-07-30 Siemens Ag Transduktordrossel mit Ringkern
US3195082A (en) * 1963-02-27 1965-07-13 Gen Electric Electrical reactor
GB1102562A (en) * 1964-05-25 1968-02-07 English Electric Co Ltd Electrical reactors
CH483707A (de) * 1968-06-10 1969-12-31 Bbc Brown Boveri & Cie Dreiphasen-Drosselspule mit Magnetkern
US3792397A (en) * 1973-07-02 1974-02-12 Allis Chalmers Stationary induction apparatus having sound attenuating core clamping means
DE2632585A1 (de) * 1976-07-20 1978-01-26 Bbc Brown Boveri & Cie Drosselspule oder transformator in linienbauweise

Also Published As

Publication number Publication date
RO85019B (ro) 1984-09-30
JPS6048891B2 (ja) 1985-10-30
DE3167177D1 (en) 1984-12-20
JPS5760821A (en) 1982-04-13
FR2486319B1 (enrdf_load_stackoverflow) 1984-02-17
CA1164540A (fr) 1984-03-27
US4415874A (en) 1983-11-15
BR8104271A (pt) 1982-03-23
FR2486319A1 (enrdf_load_stackoverflow) 1982-01-08
IN156219B (enrdf_load_stackoverflow) 1985-06-01
RO85019A (ro) 1984-08-17
EP0043523A1 (fr) 1982-01-13

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