DE1763544C

DE1763544C - Assembly of switching resistors for diverter switches of tap changers for regulating transformers

Info

Publication number: DE1763544C
Authority: DE
Inventors: Alexander 8400 Regens bürg Wittenzellner Georg 84 Π Kareth Gleich Otwin 8400 Regensburg Bleibtreu
Original assignee: Maschinenfabrik Reinhausen Gebruder Scheubeck KG, 8400 Regensburg
Publication date: 1972-12-14

Description

sentlich verbessert, weil der bisher üblishe Wider- schenplatten 7 voneinander getrennt sind. Die Tragstandszylinder und das Widerstandsschutzrohr ent- platten der Widerstandskörper 1, die Stege 6 und die fallen. An Stelle des Widerstandszylinders tritt ein Zwischenplatten 7 bestehen aus Isoherstoff u-.J werkurzes Rohrstück. Dadurch kann das Isolieröl bes- den mit einem oberen und unteren Sicherungsring 8 ser an den Tragplatten der Widerstandsträger vorbei- 5 aus Isolierstoff zusammengehalten. Hierfür sind die strömen. Im übrigen ist das Rohrstück nunmehr für Stege 6 und die Zwischenplatten 7 mit Einschnitten 9 alle Widerstandsausführungen gleich lang, während versehen. Die Stege 6 halten dabei mit ihren unteren bisher verschiedene Hartpapierrohrlängen verwendet Einschnitten 9 die Tragplatten der Widerstandskörwerden mußten. Durch diese konstruktive Ausbil- per 1 in Abstand und werden durch das Eingreifen dung der Baugruppe ist es möglich, etwa den doppel- io des Sicherungsringes 8 in den oberen Einschnitt 9 zuten Widerstandswert auf gleichem Raum oder den sammengehalten. Die Zwischenplatten 7 halten wiegleichen Widerstandswert auf geringerem Raum un- derum die Sicherungsringe 8 durch Eingreifen derterzubringen, was für die Konstruktion des gesamten selben in die Einschnitte 9 der Zwischenplatten zu-Stufenschalters vorteilhaft ist sammen. Damit kann der obere SicherungsringeSignificantly improved because the hitherto common opposing plates 7 are separated from one another. The load-bearing cylinders and the resistance protection tube de-flatten the resistance body 1, the webs 6 and the fall. Instead of the resistance cylinder, there is an intermediate plate 7 made of Isoherstoff u-.J werkurzes Pipe section. As a result, the insulating oil can have an upper and lower locking ring 8 water past the support plates of the resistance carrier 5 held together from insulating material. This is what the stream. In addition, the pipe section is now for webs 6 and the intermediate plates 7 with incisions 9 all resistor designs have the same length while provided. The webs 6 hold with their lower hitherto different lengths of hard paper tube used incisions 9 in the support plates of the resistance bodies had to. This constructive trainer 1 is at a distance and by engaging tion of the assembly, it is possible to put about the double io of the locking ring 8 in the upper incision 9 Resistance value in the same space or held together. The intermediate plates 7 hold like the same Resistance value in a smaller space and in order to bring the locking rings 8 by engaging them, what for the construction of the whole same in the incisions 9 of the intermediate plates to-tap changer together is beneficial. This allows the upper retaining rings

Ein Ausführungsbeispiel der Erfindung ist in der 15 nicht nach oben und der untere Sicherungsring 8One embodiment of the invention is not shown upward in FIG. 15 and the lower retaining ring 8

Zeichnung dargestellt und wird im folgenden näher nicht nach unten ausweichen. Zur weiteren FestigungDrawing shown and will not move downwards in more detail below. For further consolidation

beschrieben. Es zeigt der Baugruppe können die Zwischenplatten 7 mittelsdescribed. It shows the assembly can use the intermediate plates 7

Fig. leine perspektivische Ansicht der Baugruppe Isolierfäden 10 (Fig. 4) an den Sicherungsringer. 8FIG. 1 is a perspective view of the assembly of insulating threads 10 (FIG. 4) on the locking ring. 8th

von Überschaltwiderständen, festgebunden werden.of transition resistors.

Fig. 2 und'3 einen Teil eines Widerstandskörpers ao Die Zwischenplatten7 werden in Schlitzen UFIGS. 2 and 3 show a part of a resistor body. The intermediate plates 7 are in slots U

mit Distanzstegen für die Drahtlagen, von der Seite eines Rohrstückes 12 gehalten. Das Rohrstück 12 istwith spacer bars for the wire layers, held by the side of a pipe section 12. The pipe section 12 is

und von oben gesehen, dabei am unteren Teil der Baugruppe, teilweise iirerand seen from above, at the lower part of the assembly, partly over

Fig. 4 eine Baugruppe im Längsschnitt und die Baugruppe hinaus nach unten angeordnet und4 shows an assembly in longitudinal section and the assembly is also arranged downwards and

Fig. 5 eine Baugruppe in Draufsicht. besitzt Bohrungen 13 für die Anschlußkontakte «4.5 shows an assembly in plan view. has holes 13 for the connection contacts «4.

Wie aus den Fig. 1 bis 3 ersichtlich, bestehen die »5 Die Anschlußkontakte sind dabei gleichzeitig durchAs can be seen from FIGS. 1 to 3, the »5 The connection contacts are through at the same time

Widerstandskörper 1 aus genuteten Leisten 2, um das zylindrische Gehäuse 15 des LastumschalterResistance body 1 made of grooved strips 2 to the cylindrical housing 15 of the diverter switch

welche der Widerstandsdraht 3 gewickelt ist. Dabei nach außen geführt. Durch diese Anschlußkontaktewhich the resistance wire 3 is wound. In doing so, led to the outside world. Through these connection contacts

können, wie es in Fig. 2 und 3 dargestellt wurde, in 14 wird das Rohrstück 12 mit dem gesamten Trägercan, as it was shown in Fig. 2 and 3, in 14 the pipe section 12 is with the entire carrier

die einzelnen Drahtlagen 3 Distanzstäbe 4 geflochten für die Überschaltwiderstände im zylindrischen Oe-the individual wire layers 3 spacer rods 4 braided for the transition resistances in the cylindrical Oe-

sein, die zur Vermeidung von Verschiebungen mit 30 häuse 15 gehalten. Mit 16 ist ein Schirmring Se-be that to avoid shifts with 30 housing 15 held. At 16, an umbrella ring is se-

einem Isolierfaden5 an der Tragplatte angebunden zeichnet (Fig. 4), der auf der Baugruppe angeoid-an insulating thread5 tied to the support plate (Fig. 4), which is attached to the assembly

sind. net sein kann.are. can be net.

Gemäß Fig. 1 sind jeweils drei Widerstandskör- In Fig. 1 ist das zylindrische Gehäuse der Übur-According to Fig. 1 there are three resistance bodies in each case. In Fig. 1, the cylindrical housing of the transmission

perl mittels Stegen 6 zu sektorförmigen Wider- sichtlichkeit halber weggelassen. Auch_ wurde deshaibpearl by means of webs 6 to be sector-shaped for the sake of clarity. Also_ became deshaib

Standsaggregaten zusammengesetzt, wobei jeweils 35 nur ein Widerstandskörper 1 mit WiderstandsdrahtStand aggregates assembled, with only 35 resistance body 1 with resistance wire

zwei dieser Aggregate durch radial angeordnete Zwi- umwickelt dargestellt.two of these units represented by radially arranged twists.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

diverter switch at ground potential and the claims: tap changer head at ground potential or between the diverter switch and the selector.

1. Assemblies of transition resistors are ordered for the high-voltage field disruptively in-diverter switches of tap changers for regulating s flows and thus greater distances between the transformers, which can be inserted in a cylindrical housing diverter switch and the switch head or with parallel to the axis of the switch. Resistance bodies arranged between the diverter switch and the selector housing, which make necessary. In the known arrangement, they are supported by a frame and through which the transition resistors are wound on rods, intermediate plates arranged radially in the frame and these rods are spatially separated in groups by partition walls, geke η η - insulating tube of larger diameter, which is recorded by Plate-shaped take on plug contacts is used, concentrically coaxially arranged resistor body (1), which arranges and is inserted into bores of an upper and one at the upper and lower end by means of a lower insulating plate, the radially arranged webs 15, provided with the insulating cuts, the rods and tubes carry the partitions. This (6) are held, which webs by means of Ausneh- Assembling the assembly is cumbersome, it is dimensioned with a lower and an upper narrow limit the full circulation and does not come without len concentrically arranged retaining ring (8) metal connecting elements in the form of plugged together , with the locking screws off.

rings by means of further recesses with the ra- ao The invention is based on the object dialen intermediate plates (7) pluggable combined structure of the assembly of transition resistors

are in such a way that resistance bodies, webs, see and the arrangement of the resistance bodies so too

rings and spacer plates are self-supporting, so that a simple plug-in assembly of the individual

of the components of the assembly are possible on an outer, short pipe section (12) and that

form a pluggable framework. as the components of the assembly do not interfere

2. Assembly according to claim 1, thereby causing the electric field profile and a indicates that the intermediate plates (7) allow good oil circulation. This task will Additionally solved on the upper and / or lower fuse according to the invention in that the assembly ring (8) are tied. of the type mentioned at the beginning, plate-shaped

3. Assembly according to claim 1 or 2, da- 30 has coaxially arranged resistance body, characterized in that the short pipe section is connected to the upper and lower end by means of a (12) radially arranged webs cut with slots on the front edge at the upper edge (11) is provided, which are holding the radially arranged, which webs by means of recesses with Take up intermediate plates (7). one lower and one upper narrow concentric

4. Assembly according to one of claims 1 to 35 arranged locking ring are plugged together,

3, characterized in that the short tube whereby the locking rings by means of further cutouts (12) is extended downwards and in this recesses with the radial intermediate plates plug-in extension Connection contacts (14) for the bar are combined in such a way that resistance body, Resistance bodies (1) are provided, which are inserted by webs, retaining rings and intermediate plates the cylindrical housing (15) are guided in such a way, 40 self-supporting, on an outer, short piece of pipe that they form the pipe section (12) with the frame attachable frame.

carry. Advantageously, the intermediate

5. Assembly according to one of claims 1 to plates additionally on the upper and / or lower safety

4, characterized in that be tied into the individual ring. The short one can also Wire layers of the resistance winding of the resistance 45 tube piece at the front on the upper edge with slots Upright body (1) spacer rods (4) braided in, which are the radially arranged intermediate ones, record plates. In a further development of the

Finding can also move the short piece of pipe downwards

be extended, and in this extension 50 connection contacts for the resistor body can be provided.

The invention relates to an assembly that can be seen through the cylindrical housing-transition resistors for diverter switches from Stu are such that they carry the pipe section with the vessel switches for regulating transformers that are in a framework. It is also advantageous if * can be inserted into the single cylindrical housing, with resistor bodies arranged parallel to the individual wire layers of the resistance winding of the axis of the housing, spacer rods are braided in,
pern, which are carried by a frame and the advantages achieved with the invention consist in the frame radially arranged intermediate plates in particular that are spatially separated due to the simple plug-in groups, do not assemble any metallic parts such as screws,

Such known assemblies of switchover nuts, safety plates or the like. Used to Resistors are needed to be needed when switching 60, because they are made of insulating material one stage to the next stage of the standard winding. g the support plates, webs, intermediate plates and securing elements Transformer a power interruption and safety rings only stable with one another by plugging them together To avoid step short circuit. Who are connected to each other. This is done via the building switching resistors High-voltage fields running in a very group are briefly not exposed to any high loads, so that they are laid out over a wide area and have an unfavorable influence on them. In addition, the The individual parts / the carrier must be cooled as well as possible by the insulating oil sen. On the other hand, the carrier for the omission of screw connections or the like can be simplified, switching resistors between the high voltage and the cooling of the resistor material is