DE1111266B - Single pole mast disconnector - Google Patents

Description

The invention relates to a single pole mast disconnector, consisting of two by one Intermediate piece of rigidly connected insulators, the outer ends of which carry connecting pieces for the conductors, which simultaneously serve as a bearing or mating contact of a cutting knife, the actuating device with a third insulator attached to the intermediate piece used to fasten the switch is. In a known circuit breaker of similar structure, the ends of the through the intermediate piece rigidly connected insulators to one another through the third insulator to form a rigid unit tied together. There is a parallel to the ends of the third insulator to which the cables are led separating knife forming the line bridge. Quite apart from the relatively complicated drive arrangement for this cutting knife is the flexible connection of the cutting knife with the cables in such a circuit breaker disadvantageous. In the case of a mast disconnector that is also known at the beginning mentioned type, the third insulator is pivotable on the one at both ends with the wire ropes connected insulators bearing spacer arranged. This circuit breaker too has the disadvantage that the pivotable isolator is connected to a cable run via a flexible line section. Also known Disconnectors which have a construction that differs from the disconnector of the type mentioned above, are associated with the disadvantage that they have a relatively complicated structure and that, in particular, proper functioning is not ensured in the event of rope fluctuations.

The object of the invention is to provide a mast disconnector of the type mentioned at the beginning, d. H. with only three isolators including the actuation isolator are used to create in which flexible lines are avoided and a simple one, despite rope fluctuations reliable operation and storage of the cutting knife or knives is ensured, and which is designed so that it can be attached to normal carriers, the drive of the switch on is housed easily in the support piece.

An essential feature of the invention is that the two insulators with the intermediate piece are combined to form a rigid, insulating rod that can be suspended in its center, and the actuating device of the cutting knife as displaceable in the intermediate piece of the rigid rod, via a hinged one Isolator acting rod is formed. This accommodating the as a sliding rod trained drive in the intermediate piece, with single-pole mast disconnector

Applicant:
L'Electro-Verre, Soc.An., Paris

Representative: Dipl.-Ing. H. Leinweber, patent attorney,
Munich2, Rosental?

Claimed priority:
France May 20, 1957

Charles Detallante, Fontenay-sous-Bois,

Seine (France),
has been named as the inventor

this rod is hinged to the cutting knife via the actuating isolator, has to be eliminated the disadvantages of known circuit breakers mentioned at the outset as particularly useful.

Another essential feature of the invention is that the isolators of the rigid insulating Rod and the actuator in a known manner from parts of the cap-bolt type exist, each of which is rigidly connected to the neighboring one and fitted into it exactly is to form a pressure-resistant, tensile-resistant and bending-resistant arrangement.

When grouping several circuit breakers of the type mentioned above on a single one Line pole is according to a further essential feature of the invention for simultaneous actuation all disconnectors are provided with a hydraulic remote control, with a piston inside of the intermediate piece of each circuit breaker is arranged through which the rod is displaced.

Further essential features of the invention emerge from the description. In the drawing Embodiments of the invention are shown, namely shows

1 shows a pole with an electrical three-phase line,

Fig. 2 shows a mast with a disconnector according to the invention,

3 shows another line pole with a disconnector according to the invention,

109 648/288

Claims (5)

3 4 4 shows a view of a circuit breaker comprising three rigidly attached basic insulators as a whole of the invention and with rod and cap. Fig. 5 shows a modification of the interrupt mechanism. It goes without saying that the insulation voltage of this nism. Swing arm 28 is the same as that of the long shaft The mast shown in FIG. 1 consists of 5 insulators 17 and 18. a Mastl, at the top of which the electrical He is dar with insulators of smaller dimensions lines supporting metal frame 2 arranged, which corresponds to the fact that the on Bienet is. With this so-called "bracket frame", stressed insulators can be used much larger have considerable savings in relation to the mast. This increase in extent is disregarded because its height is less. The elek- io is therefore a mechanical and not a dielectric one Lines become a necessity on the metallic face. Rüst 2 represented by insulators or insulator chains 3, 4, 5 I _n the, the scheme of Fig. 2 entbefestigt, speaking case, the control must be non-rigid. Fig. 2 shows a circuit breaker according to the invention. Any suitable system can be used, Bowdend: It can be seen that it is on a pylon i _{5 train} or pneumatic or hydraulic drive, appropriate mast is attached, whereas the hydraulic drive is particularly suitable conventional disconnectors loading a special mast _ne t he causes a slight, simultaneous opening or thing with a frame attached to the top. Close the three knives, whatever will be of interest The one at the top of the mast. ordered metallic framework 2 are the invention 20 in the case of a hydraulic control is the me- according to three disconnectors 6, 7, 8 by a simple mechanism 26 via a non-rigid drive that the Attach in place of the insulators 3, 4, S attached. Movements of the hanging on the swing arm 16 To operate the isolating switch, an assembly can follow on the mast, with the cable mast Control mechanism 9 arranged. bound. It is advantageous to use a flexible 3 shows a diagrammatic view of a separate rubber tube or a spiral-shaped copper tube Embodiment according to the invention. pipe. At the top of the mast 10 is a horizontal I _n Fig. 5 is a modified embodiment Trägerll attached to which the invention is shown, in which the two contacts are movable three disconnectors 12, 13 and 14 are attached. The _s i _n d. At the two ends of the rod 30 are two In this case, the control can be any mecha- 30 symmetrical arms 31 and 32 with two movable, niche device with rigid elements. at points 35 and 36 at the ends of the arms Fig. 4 shows an apparatus according to the invention in which 31 and 32 articulated knives are arranged. The rigid elongated insulating body consists of net. The two knives 33 and 34 are respectively from a unit with a connection and an isolating swing arm 37 and 38 gedie Suspension of the entirety ensuring 35 controls, which - like the swing arm 28 - from Middle part 15. The embodiment can consist of these basic insulators connected in series, Figure hangs - according to the example after the two ends united at point 39 at the end 2 - on a rod 16, the two ends of which are articulated to the movement of the rod 30 in the middle are arranged. Mechanism 41 transmitting rod 40 located to the side of the central part in each case 15 two long shaft insulators 17 and 18 are attached. 40 are hinged. These two isolators are identical and symmetrical- This latter version is symmetrical and trically arranged. , requires a smaller number of different parts You may have a very weak len than the previous examples: the stress Form an angle so that it is more evenly distributed when the suspension begins, ■ Follow the direction of the line and thus the sta- 45 Meanwhile, there are a larger number of insulators Reduce the deflection of the appliance. necessary. The apparatus is therefore heavier, works However, a single long-shaft insulator can be made more reliable. turning, whereby the attachment of the entirety and the various, described or shown the fastening of the interruption mechanism on th embodiments are only examples, an intermediate cap mounted in the middle. 50 because the switch according to the invention on different At the two ends of the rod there are loading methods that can be realized special end pieces 19 and 20, which are equipped with an eyelet for The separating device is not part of the invention Attaching the line and means for fastening the object. It is known to the professional world of the disconnector are provided. the rules and regulations of the user. According to FIG. 4, these means are arms 21 and 22, 55 actually. which are related to the end pieces 19 and 20. Although the description and drawing refer to the The arm 21 has a joint 23 on which the knife 24 application of the invention in a device for sits, and the arm 22 carries at its end the electrical lines, called "bracket frame", referring to clock 25. The movement of the knife 24 is of hen, for which the invention is particularly well suited, one under the middle part 15 or inside 60 it must be mentioned that this invention also applies to this central part controlled mechanism. find other line devices use It is over the rod 27 and the insulating can. Swing arm 28, which is at point 29 on knife 24 _ is articulated, transferred to the knife. PATENT CLAIMS: The isolating swing arm 28 itself consists of 65 1, single-pole mast disconnector, consisting of a rigid long-shaft insulator of the same type as two rigidly connected by an intermediate piece the isolators 17 and 18, d. That is, as from the original, insulators, the outer ends of which are connecting pieces management example according to the figure can be seen from a wear for the ladder, which also serves as a storage or counter contact of a cutting knife, the actuating device being attached to the intermediate piece used to fasten the switch with a third insulator, characterized in that the two insulators with the intermediate piece form a rigid, insulating rod (15, 17, 18 or 30, 41) are combined and the actuating device of the cutting knife is designed as a rod (27) which can be displaced in the intermediate piece (15, 41) of the rigid rod and acts via a hinged insulator (28). 2. Single pole disconnector according to claim 1, characterized in that the insulators of the rigid insulating rod and the actuator in a known manner from parts of the Cap-and-bolt designs are made, each of which is rigidly connected to the neighboring one and is precisely fitted in this in order to achieve a pressure-resistant, tensile-resistant and flexurally resistant arrangement form. 3. Grouping of several disconnectors according to claim 1, on a single mast, characterized in that one for simultaneous actuation of all disconnectors hydraulic remote control is provided, with a piston within the intermediate piece (15, 41) each circuit breaker is arranged through which the rod (27, 40) is displaced. 4. Isolating switch according to claim 1, characterized in that two cutting blades (33, 34) unfoldable at each of the outer ends (19, 20) of the rigid insulating Rod attached elements (19, 31, 20, 32J are articulated. 5. Isolating switch according to claim 4, characterized in that the cutting knife (33, 34) through a displaceable rod (40) and two actuating isolators (37, 38) can be controlled. Considered publications: German Patent Nos. 431 031, 588 364;
U.S. Patent Nos. 1,378,395, 1,394,968,
748 752 1 898 387. 1 sheet of drawings © 109 648/288 7.