EP0043523A1 - Electrical shunt reactor for an electric power transmission line, and method of making such reactor - Google Patents

Electrical shunt reactor for an electric power transmission line, and method of making such reactor Download PDF

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Publication number
EP0043523A1
EP0043523A1 EP81104972A EP81104972A EP0043523A1 EP 0043523 A1 EP0043523 A1 EP 0043523A1 EP 81104972 A EP81104972 A EP 81104972A EP 81104972 A EP81104972 A EP 81104972A EP 0043523 A1 EP0043523 A1 EP 0043523A1
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EP
European Patent Office
Prior art keywords
nut
washers
tie rods
skirt
screwed
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Granted
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EP81104972A
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German (de)
French (fr)
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EP0043523B1 (en
Inventor
Gérard Messe
Michel Faure
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Alstom SA
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Alsthom Atlantique SA
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Publication of EP0043523A1 publication Critical patent/EP0043523A1/en
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    • 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, an electrical 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 consists in placing a tie rod 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 losses by eddy current in the drawing.
  • the present invention therefore relates to an electric shunt inductor for an electric power transmission line comprising a magnetic core around which an electric winding is placed, 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 sections of iron separated from each other by air gaps made of non-magnetic material, characterized in that the yokes are clamped against the magnetic core and said branches by means of several tie rods of non-magnetic material passing through said central hole and passing through said cylinder heads, spacer washers being placed regularly along the tie rods so as to prevent their vibration.
  • tie rods there are seven tie rods, one of which is located in the axis of the central hole of the core and the other six regularly distributed around.
  • a piece in the form of a bowl whose bottom is pierced with seven holes nuts screwed on the tie rods preventing the removal of said piece, which is threaded on its outer periphery and receives a nut bearing on washers having an axial elasticity and exerting a bearing force on the upper cylinder head.
  • said nut bearing on the washers is divided into two superimposed parts which can be screwed separately onto said cup-shaped part, the upper part of said nut having a bottom at its upper part, pierced with a tapped hole.
  • FIG. 3 we see a small part of the magnetic core of a shunt inductor.
  • a core consists of a stack of laminated iron sections, two sections of which: 1 and 2 are shown in FIG. 3.
  • the sections are cylindrical and have a central hole 3.
  • the sections are separated from each other by air gaps 4 in 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 an external cylindrical wall threaded.
  • 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 2 (fig.3), place a washer on tie rods 7, 8 and 10 as shown in Figure 2. On the Figure 3 we see the washer 24 on the tie rod 7 and part of the washer located on the tie rod 8 placed behind the tie rods 5 and 6. At the next section, for example section 1, the 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.

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  • 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)

Abstract

Bobine électrique d'inductance shunt pour ligne de transport d'énergie électrique et procédé de réalisation d'une telle bobine. L'invention concerne un dispositif de serrage du noyau et des culasses supérieure et inférieure d'une bobine d'inductance shunt par le moyen de plusieurs tirants (5, 6, 7) de préférence sept, passant par le trou central du noyau. Une pièce en forme de cuvette (12), retenue par des écrous (13) est enfilée sur les tirants, cette pièce étant filetée sur sa paroi externe, un écrou (14) étant vissé sur cette pièce (12) et prenant appui sur des rondelles (15) possédant une élasticité axiale.Electric shunt inductor for electric power transmission line and method for producing such a coil. The invention relates to a device for tightening the core and the upper and lower yokes of a shunt inductor by means of several tie rods (5, 6, 7) preferably seven, passing through the central hole of the core. A cup-shaped part (12), retained by nuts (13) is threaded onto the tie rods, this part being threaded on its external wall, a nut (14) being screwed onto this part (12) and bearing on washers (15) having axial elasticity.

Description

La présente invention concerne une bobine d'inductance shunt.The present invention relates to a shunt inductor.

De telles bobines sont utilisées pour compenser la puissance réactive capacitive des longues lignes de transport d'énergie électrique à haute tension.Such coils are used to compensate for the capacitive reactive power of long lines of high voltage electrical energy.

Un type connu d'une telle bobine d'inductance shunt comporte un noyau magnétique constitué par une pile de tronçons de fer feuilleté séparés les uns des autres par des entrefers en matériau amagnétique, un enroulement électrique entourant ledit noyau et un manteau magnétique pour la fermeture du flux magnétique. Un tel manteau magnétique est un circuit magnétique feuilleté comportant deux jambes parallèles à l'axe de la bobine réunies par deux culasses, le noyau étant compris entre les milieux des deux culasses.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, an electrical winding surrounding said core and a magnetic mantle for closing. of magnetic flux. Such 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.

Plusieurs solutions existent pour le serrage des culasses contre le noyau central.Several solutions exist for tightening the cylinder heads against the central core.

Il existe une solution où le serrage est réalisé à l'extérieur de l'enroulement entourant le noyau au moyen de tirants, une autre où les tirants sont placés entre le noyau et l'enroulement.There is a solution where the tightening is carried out outside the winding surrounding the core by means of tie rods, another where the tie rods are placed between the core and the winding.

Ces deux solutions prennent beaucoup de place et dans la seconde le poids en cuivre est augmenté.These two solutions take up a lot of space and in the second the copper weight is increased.

Une autre solution connue consiste à placer un tirant de fixation dans le trou central du noyau. Au point de vue gain de place et économie de cuivre cette solution est idéale, par contre il y a un échauffement du système de fixation à cause des pertes par courant de Foucault dans le tirant.Another known solution consists in placing a tie rod 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 losses by eddy current in the drawing.

La présente invention a donc pour objet une bobine électrique d'inductance shunt pour ligne de transport d'énergie électrique comprenant un noyau magnétique autour duquel est placé un enroulement électrique, et un manteau magnétique pour la fermeture du flux magnétique comportant deux branches parallèles à l'axe de l'enroulement réunies par deux culasses, ledit noyau magnétique comportant un trou central et étant constitué par un empilement de tronçons de fer séparés les uns des autres par des entrefers en matériau amagnétique, caractérisé en ce que les culasses sont serrées contre le noyau magnétique et lesdites branches au moyen de plusieurs tirants en matériau amagnétique passant dans ledit trou central et traversant lesdites culasses, des rondelles entretoises étant placées régulièrement le long des tirants de manière à empêcher leur vibration.The present invention therefore relates to an electric shunt inductor for an electric power transmission line comprising a magnetic core around which an electric winding is placed, 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 sections of iron separated from each other by air gaps made of non-magnetic material, characterized in that the yokes are clamped against the magnetic core and said branches by means of several tie rods of non-magnetic material passing through said central hole and passing through said cylinder heads, spacer washers being placed regularly along the tie rods so as to prevent their vibration.

Selon une réalisation particulièrement avantageuse de la présente invention, les tirants sont au nombre de sept dont l'un est situé dans l'axe du trou central du noyau et les six autres régulièrement répartis autour .According to a particularly advantageous embodiment of the present invention, there are seven tie rods, one of which is located in the axis of the central hole of the core and the other six regularly distributed around.

Selon une autre catactéristique de l'invention, sur l'extrémité supérieure des tirants est enfilée une pièce en forme de cuvette dont le fond est percé de sept trous, des écrous vissés sur les tirants empêchant le retrait de ladite pièce, laquelle est filetée sur sa périphérie externe et reçoit un écrou prenant appui sur des rondelles ayant une élasticité axiale et exerçant une force d'appui sur la culasse supérieure.According to another characteristic of the invention, on the upper end of the tie rods is threaded a piece in the form of a bowl whose bottom is pierced with seven holes, nuts screwed on the tie rods preventing the removal of said piece, which is threaded on its outer periphery and receives a nut bearing on washers having an axial elasticity and exerting a bearing force on the upper cylinder head.

Selon une réalisation, ledit écrou prenant appui sur les rondelles est divisé en deux parties superposées pouvant se visser séparément sur ladite pièce en forme de cuvette, la partie supérieure dudit écrou comportant un fond à sa partie haute, percé d'un trou taraudé.According to one embodiment, said nut bearing on the washers is divided into two superimposed parts which can be screwed separately onto said cup-shaped part, the upper part of said nut having a bottom at its upper part, pierced with a tapped hole.

L'invention a aussi pour objet un procédé de réalisation d'une telle bobine, caractérisé en ce que pour serrer ledit écrou en deux parties contre lesdites rondelles, on utilise un vérin creux comportant une "jupe" et une tige se mouvant axialement à l'intérieur de la "jupe", la jupe prenant appui sur lesdites rondelles et la tige étant vissée, dans ledit trou taraudé dudit fond et en ce que l'on effectue les opérations suivantes :

  • - on met la pression dans le vérin ce qui provoque la remontée de la tige dans le corps du vérin et l'écrasement des rondelles par ladite "jupe",
  • - on visse à la main la partie inférieure dudit écrou, au travers d'une fenêtre percée dans la "jupe", jusqu'à ce qu'il vienne en contact des rondelles,
  • - on relâche la pression du vérin,
  • - on dévisse la tige du vérin de la partie supérieure de l'écrou,
  • - on visse la partie supérieure de l'écrou sur ladite pièce en forme de cuvette jusqu'à ce qu'elle vienne au contact de la partie inférieure dudit écrou.
The invention also relates to a method of producing such a coil, characterized in that to tighten said nut in two parts against said washers, a hollow cylinder is used comprising a "skirt" and a rod moving axially at inside of the "skirt", the skirt bearing on said washers and the rod being screwed, in said tapped hole of said bottom and in that the following operations are carried out:
  • - pressure is put in the jack which causes the rod to rise in the body of the jack and the washers to be crushed by said "skirt",
  • - the lower part of said nut is screwed by hand, through a window pierced in the "skirt", until it comes into contact with the washers,
  • - the pressure of the jack is released,
  • - we unscrew the cylinder rod from the upper part of the nut,
  • - The upper part of the nut is screwed onto said cup-shaped part until it comes into contact with the lower part of said nut.

L'invention sera bien comprise à la lumière de la description d'un exemple de réalisation de l'invention faite ci-après en regard du dessin annexé dans lequel :

  • La figure 1 montre en vue partielle en coupe le dispositif de serrage du noyau d'une bobine d'inductance shunt selon l'invention.
  • La figure 2 est une vue de dessus de la figure 1 .
  • La figure 3 donne une vue partielle en coupe du noyau magnétique de la bobine selon l'invention.
  • La figure 4 montre l'appareillage utilisé pour le serrage.
The invention will be clearly understood in the light of the description of an embodiment of the invention given below with reference to the appended drawing in which:
  • Figure 1 shows in partial sectional view the clamping device of the core of a shunt inductor according to the invention.
  • Figure 2 is a top view of Figure 1.
  • Figure 3 gives a partial sectional view of the magnetic core of the coil according to the invention.
  • Figure 4 shows the equipment used for tightening.

En se reportant à la figure 3 on voit une petite partie du noyau magnétique d'une bobine d'inductance shunt. Un tel noyau se compose d'un empilement de tronçons de fer feuilleté dont deux tronçons : 1 et 2 sont représentés sur la figure 3. Les tronçons sont cylindriques et comportent un trou central 3. Les tronçons sont séparés les uns des autres par des entrefers 4 en matériau amagnétique. Au sommet et à la base du noyau magnétique sont situées une culasse supérieure et une culasse inférieure réunies à leurs extrémités par des branches verticales , ces culasses et ces branches verticales ne sont pas représentées sur la figure 3.Referring to Figure 3 we see a small part of the magnetic core of a shunt inductor. Such a core consists of a stack of laminated iron sections, two sections of which: 1 and 2 are shown in FIG. 3. The sections are cylindrical and have a central hole 3. The sections are separated from each other by air gaps 4 in 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.

Afin de serrer le noyau magnétique et les culasses contre ce noyau, on utilise sept tirants 5, 6, 7, 8, 9, 10 et 11, dont trois seulement sont visibles sur les figures 1 et 3.In order to clamp the magnetic core and the yokes against this core, seven tie rods 5, 6, 7, 8, 9, 10 and 11 are used, of which only three are visible in FIGS. 1 and 3.

Comme on le voit sur la figure 2, l'un de ces tirants, le tirant 6 est placé dans l'axe du noyau et les autres répartis régulièrement autour.As seen in Figure 2, one of these tie rods, the tie rod 6 is placed in the axis of the core and the others distributed regularly around.

La figure 1 montre le dispositif permettant d'exercer et de maintenir en traction les tirants. Sur cette figure, la partie située à gauche de l'axe 26 de l'enroulement est représentée avant serrage et la partie située à droite de l'axe 26 est représentée après serrage. Sur l'extrémité des tirants, est enfilée une pièce 12 en forme de cuvette comportant une paroi cylindrique extérieure
filetée. Des écrous 13 servent à retenir la pièce 12 sur les tirants. Un écrou 14 en deux parties indépendantes 14A et 14B est vissé sur la paroi externe de la pièce 12 en forme de cuvette, et l'extrémité inférieure de la partie 14B de l'écrou prend appui sur des rondelles 15 qui présentent une certaine élasticité axiale. Les rondelles 15 reposent sur la culasse supérieure, non représentée, par l'intermédiaire d'une plaque de répartition d'appui 16 et d'isolant 17.Figure 1 shows the device for exercising and maintaining traction in the tie rods. In this figure, 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. On the end of the tie rods is threaded a part 12 in the form of a bowl comprising an external cylindrical wall
threaded. 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.

Pour serrer l'ensemble, il s'agit de visser l'écrou 14 sur la pièce en forme de cuvette 12, afin d'écraser les rondelles 15. Pour réaliser ce serrage, on utilise, comme il est représenté sur la figure 4, un vérin creux 18 qui comporte une "jupe" 19 prenant appui sur les rondelles 15 et une tige 20 que l'on visse dans le fond 21 de l'écrou 14A comportant un trou taraudé 22. Au départ, l'ensemble est desserré et se trouve tel que représenté sur la partie gauche de la figure 1. Lorsque la pression est envoyée dans le vérin, la tige 20 du vérin rentre dans le corps du vérin et la jupe 19 écrase les rondelles 15.To tighten the assembly, it is a question of screwing the nut 14 on the part in the form of cup 12, in order to crush the washers 15. To carry out this tightening, one uses, as it is represented on figure 4, a hollow jack 18 which has a "skirt" 19 bearing on the washers 15 and a rod 20 which is screwed into the bottom 21 of the nut 14A having a tapped hole 22. At the start, the assembly is loose and is as shown on the left-hand side of FIG. 1. When the pressure is sent to the jack, the rod 20 of the jack enters the body of the jack and the skirt 19 crushes the washers 15.

Par une fenêtre 23 de la jupe 19 on peut alors visser la partie 14B de l'écrou 14 jusqu'à ce qu'il vienne au contact des rondelles 15. On relâche alors la pression du vérin, on le dévisse et on revisse la partie 14A de l'écrou 14 jusqu'à ce qu'il vienne au contact de la partie 14B.Through a window 23 of the skirt 19 we can then screw the part 14B of the nut 14 until it comes into contact with the washers 15. We then release the pressure from the jack, we unscrew it and we screw the part back 14A of nut 14 until it comes into contact with part 14B.

Pour éviter les vibrations des tirants, des rondelles entretoises 24 sont placées sur les tirants : trois rondelles sont placées au niveau de chaque tronçon de fer. Par exemple, au niveau du tronçon 2 (fig.3) on place une rondelle sur les tirants 7, 8 et 10 comme on le voit sur la figure 2. Sur la figure 3 on voit la rondelle 24 sur le tirant 7 et une partie de la rondelle située sur le tirant 8 placé derrière les tirants 5 et 6. Au niveau du tronçon suivant, par exemple le tronçon 1, les rondelles seront placées sur les tirants 5, 9 et 11. Ces rondelles prennent appui sur un cylindre isolant 25 placé à l'intérieur du trou central de chaque tronçon.To avoid vibrations of the tie rods, 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 2 (fig.3), place a washer on tie rods 7, 8 and 10 as shown in Figure 2. On the Figure 3 we see the washer 24 on the tie rod 7 and part of the washer located on the tie rod 8 placed behind the tie rods 5 and 6. At the next section, for example section 1, the 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.

Le dispositif de serrage selon l'invention occupe ainsi très
peu de place et l'échauffement des tirants est très faible. Par ailleurs, le nombre de tirants égal à sept est celui qui permet le meilleur remplissage du trou pour un diamètre donné et il permet également une réalisation très pratique du calage des tirants au moyen de trois rondelles décalées alternativement au niveau des tronçons successifs.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.

Claims (6)

1/ Bobine électrique d'inductance shunt pour ligne de transport d'énergie électrique comprenant un noyau magnétique autour duquel est placé un enroulement électrique, et un manteau magnétique pour la fermeture du flux magnétique comportant deux branches parallèles à l'axe de l'enroulement réunies par deux culasses, ledit noyau magnétique comportant un trou central (3) et étant constitué par un empilement de tronçons de fer (1,1 / Electric shunt inductor for electric power transmission line comprising a magnetic core around which is placed an electrical 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 (3) and consisting of a stack of iron sections (1, 2) séparés les uns des autres par des entrefers (4) en matériau amagnétique, caractérisée en ce que les culasses sont serrées contre le noyau magnétique et lesdites branches au moyen de plusieurs tirants (5, 6, 7, 8, 9, 10, 11) en matériau amagnétique passant dans ledit trou central et traversant lesdites culasses, des rondelles entretoises (24) étant placées régulièrement le long des tirants de manière à empêcher leur vibration.2) separated from each other by air gaps (4) made of non-magnetic material, characterized in that the yokes are clamped against the magnetic core and said branches by means of several tie rods (5, 6, 7, 8, 9, 10, 11) of non-magnetic material passing through said central hole and passing through said cylinder heads, spacer washers (24) being placed regularly along the tie rods so as to prevent their vibration. 2/ Bobine électrique d'inductance shunt selon la revendication 1, caractérisée en ce que les tirants sont au nombre de sept dont l'un est situé dans l'axe du trou central du noyau et les six autres régulièrement répartis autour.2 / electric shunt inductor according to claim 1, characterized in that the tie rods are seven in number, one of which is located in the axis of the central hole of the core and the other six regularly distributed around. 3/ Bobine électrique d'inductance shunt selon la revendication 2, caractérisée en ce que sur l'extrémité supérieure des tirants est enfilée une pièce en forme de cuvette (12) dont le fond est percé de sept trous, des écrous (13) vissés sur les tirants empêchant le retrait de ladite pièce laquelle est filetée sur sa périphérie externe et reçoit un écrou (14) prenant appui sur des rondelles (15) ayant une élasticité axiale et exerçant une force d'appui sur la culasse supérieure.3 / electric shunt inductor according to claim 2, characterized in that on the upper end of the tie rods is threaded a cup-shaped part (12) whose bottom is pierced with seven holes, nuts (13) screwed on the tie rods preventing the withdrawal of said part which is threaded on its outer periphery and receives a nut (14) bearing on washers (15) having an axial elasticity and exerting a bearing force on the upper cylinder head. 4/ Bobine électrique d'inductance shunt selon la revendication 3, caractérisée en ce que ledit écrou prenant appui sur des rondelles est divisé en deux parties superposées pouvant se visser séparément sur ladite pièce en forme de cuvette, la partie supérieure (14A) dudit écrou comportant un fond (21) à sa partie haute, percé d'un trou taraudé (22).4 / electric shunt inductor according to claim 3, characterized in that said nut bearing on washers is divided into two superimposed parts which can be screwed separately on said bowl-shaped part, the upper part (14A) of said nut comprising a bottom (21) at its upper part, pierced with a tapped hole (22). 5/ Procédé de réalisation d'une bobine d'inductance shunt selon la revendication 4, caractérisé en ce que, pour serrer l'écrou en deux parties contre lesdites rondelles on utilise un vérin creux (18) comportant une "jupe" (19) et une tige (20) se mouvant axialement à l'intérieur de la "jupe", la jupe prenant appui sur lesdites rondelles et la tige étant vissée dans ledit trou taraudé dudit fond, et en ce que l'on effectue les opérations suivantes : - on met la pression dans le vérin ce qui provoque la remontée de la tige dans le corps du vérin et l'écrasement des rondelles par ladite "jupe", - on visse à la main la partie inférieure dudit écrou, au travers d'une fenêtre percée (23) dans la "jupe", jusqu'à ce qu'il vienne en contact des rondelles, - on relâche la pression du vérin, - on dévisse la tige du vérin de la partie supérieure de l'écrou, - on visse la partie supérieure de l'écrou sur ladite pièce en forme de cuvette jusqu'à ce qu'elle vienne au contact de la partie inférieure (14B) dudit écrou. 5 / Method for producing a shunt inductor according to claim 4, characterized in that, to tighten the nut in two parts against said washers, a hollow cylinder (18) is used comprising a "skirt" (19) and a rod (20) moving axially inside the "skirt", the skirt bearing on said washers and the rod being screwed into said threaded hole of said bottom, and in that the following operations are carried out: - pressure is put in the jack which causes the rod to rise in the body of the jack and the washers to be crushed by said "skirt", - the lower part of said nut is screwed by hand, through a window pierced (23) in the "skirt", until it comes into contact with the washers, - the pressure of the jack is released, - we unscrew the cylinder rod from the upper part of the nut, - The upper part of the nut is screwed onto said cup-shaped part until it comes into contact with the lower part (14B) of said nut.
EP81104972A 1980-07-04 1981-06-26 Electrical shunt reactor for an electric power transmission line, and method of making such reactor Expired EP0043523B1 (en)

Applications Claiming Priority (2)

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

Publications (2)

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EP0043523A1 true EP0043523A1 (en) 1982-01-13
EP0043523B1 EP0043523B1 (en) 1984-11-14

Family

ID=9243865

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Application Number Title Priority Date Filing Date
EP81104972A Expired EP0043523B1 (en) 1980-07-04 1981-06-26 Electrical shunt reactor for an electric power transmission line, and method of making such reactor

Country Status (9)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647979A1 (en) * 1989-05-30 1990-12-07 Electricite De France Process and device for constricting the magnetic circuit of a rotating electric machine

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
JPS6082876A (en) * 1983-10-13 1985-05-11 Hitachi Cable Ltd Position detecting apparatus of moving body
DE3347490A1 (en) * 1983-12-29 1985-07-11 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Transformer core
US6087626A (en) * 1998-02-17 2000-07-11 Illinois Tool Works Inc. Method and apparatus for welding
AT407205B (en) * 1998-04-27 2001-01-25 Va Tech Elin Transformatoren G Induction coil
CN108597799A (en) * 2018-06-04 2018-09-28 三变科技股份有限公司 Core of reactor compressing structure and pressing device

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FR1285185A (en) * 1961-03-31 1962-02-16 Thomson Houston Comp Francaise Further training for processors
DE1174899B (en) * 1961-07-29 1964-07-30 Siemens Ag Transductor choke with toroidal core
US3175174A (en) * 1961-04-11 1965-03-23 Gen Electric Centering and fastening means for internally supported transformer
FR2013335A1 (en) * 1968-06-10 1970-04-03 Bbc Brown Boveri & Cie
US3792397A (en) * 1973-07-02 1974-02-12 Allis Chalmers Stationary induction apparatus having sound attenuating core clamping means
DE2632585A1 (en) * 1976-07-20 1978-01-26 Bbc Brown Boveri & Cie Single phase reactor transformer - has in=line magnetic columns and yokes made of wound bands to reduce vibration and noise

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DE1208810B (en) * 1960-11-29 1966-01-13 Licentia Gmbh Device for joint pressing of the cores and windings of large transformers
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1285185A (en) * 1961-03-31 1962-02-16 Thomson Houston Comp Francaise Further training for processors
US3175174A (en) * 1961-04-11 1965-03-23 Gen Electric Centering and fastening means for internally supported transformer
DE1174899B (en) * 1961-07-29 1964-07-30 Siemens Ag Transductor choke with toroidal core
FR2013335A1 (en) * 1968-06-10 1970-04-03 Bbc Brown Boveri & Cie
US3792397A (en) * 1973-07-02 1974-02-12 Allis Chalmers Stationary induction apparatus having sound attenuating core clamping means
DE2632585A1 (en) * 1976-07-20 1978-01-26 Bbc Brown Boveri & Cie Single phase reactor transformer - has in=line magnetic columns and yokes made of wound bands to reduce vibration and noise

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647979A1 (en) * 1989-05-30 1990-12-07 Electricite De France Process and device for constricting the magnetic circuit of a rotating electric machine

Also Published As

Publication number Publication date
JPS5760821A (en) 1982-04-13
BR8104271A (en) 1982-03-23
RO85019A (en) 1984-08-17
EP0043523B1 (en) 1984-11-14
US4415874A (en) 1983-11-15
FR2486319A1 (en) 1982-01-08
RO85019B (en) 1984-09-30
JPS6048891B2 (en) 1985-10-30
CA1164540A (en) 1984-03-27
FR2486319B1 (en) 1984-02-17
IN156219B (en) 1985-06-01
DE3167177D1 (en) 1984-12-20

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