DE490429C

DE490429C - Overhead line disconnector

Info

Publication number: DE490429C
Application number: DEA53746D
Authority: DE
Original assignee: BERGSLAGENS GEMENSAMMA KRAFTFO
Current assignee: BERGSLAGENS GEMENSAMMA KRAFTFO
Priority date: 1927-03-29
Filing date: 1928-03-29
Publication date: 1930-01-27
Also published as: GB287916A; FR651835A

Description

Die Erfindung betrifft einen Frejleitungstrennschalter, dessen -ToIe durch. Hängeisolatoren, oder isolatorketten gegenseitig voneinander isoliert sind, wobei die zwischen den Polen des Trennschalters angebrachte Isolierkette von geeigneten Vorrichtungen, wie Masten, Trägern o. dgl., getragen wird und die elektrischen Leitungen direkt oder indirekt mit den Polen oder Befestigungspunkten des Trennschalters so verbunden sind, daß die genannten Isolatorketten durch die mechanische Spannung oder den Zug in den elektrischen Leitungen gespannt gehalten werden. Bei bekannten Vorrichtungen der genanntenThe invention relates to an overhead line disconnector, its -ToIe through. Suspension insulators, or insulator chains mutually are isolated from each other, with the one placed between the poles of the disconnector Isolation chain of suitable devices, such as masts, girders or the like., Is carried and the electrical lines directly or indirectly to the poles or attachment points of the Disconnectors are connected so that the said isolator chains through the mechanical Tension or the train in the electrical lines are kept taut. In known devices of the above

»5 Art lagen die zur Befestigung der Leitungen an den 'Masten oder anderen, demsielblein Zweck dienenden festen Vorrichtungen bestimmten Isolatorketten in derselben oder in nahezu derselben iVertikalebene wie die»5 kind of lay the ones to fix the lines on the masts or on the others Purpose-built fixed devices in the same or in certain isolator chains almost the same vertical plane as the

ao elektrischen Leitungen sielbst, d. h. in der Verlängerung derselben. Dieae Anordnung war mit dem Übelstand verknüpft, daß die Kontaktpunkte des Trennschalters mit den Leitungen nicht die gewünschte feste Lageao electrical lines themselves, d. H. in the extension of the same. The arrangement was linked to the disadvantage that the contact points of the disconnector with the Lines do not have the desired fixed position

as erhielten, indem die Leitungen und damit auch die genannten Kontaktpunkte durch die Einwirkung von Temperaturveränderungen, Schnee- oder Eisbelegen an dien Leitungen, wie auch durch die Einwirkung des Windes ihre Lage im Raum veränderten, was das Manöverieren und das gute Arbeiten des Trennschalters erschwerte. Besonders hat der bei Sturm in der Querrichtung der Leitungen wirkende Seitendruck störende seitliche Schwingungen der Kontaktpunkte des Trennschalters mit den Leitungen verursacht.as received by the lines and thus also the mentioned contact points due to the effect of temperature changes, Snow or ice deposits on the lines, such as also changed their position in space by the action of the wind, which is what maneuvering and made it difficult for the circuit breaker to work properly. Especially when there is a storm Side pressure acting in the transverse direction of the lines, disturbing lateral vibrations the contact points of the disconnector with the cables.

Die Erfindung bezweckt, diese Üblelstände zu beseitigen durch 'Zuwegebringen 'eimer möglichst festen Lage der Punkte oder der Kontaktstücke an den Leitungen, die mit dem Trennschalter für das Schließen bzw. Unterbrechen des Stromkreises zusammlenwirken. Zu diesem Zweck sind erfindungsgemäß die elektrischen Leitungen an den zum Abspannen derselben dienenden Spannmasten oder Trägern (oder anderen entsprechenden Befestigungsvorrichtungen) mittels, zweier oder mehrerer Isolatorketten befestigt, die so angeordnet sind, daß sie nicht in derselben Vertikalebene wie die !elektrischen Leitungen selbst, sondern nebeneinander liegen.The invention aims to eliminate these deficiencies by 'getting away' buckets as firm a position as possible of the points or the contact pieces on the lines that are connected to the circuit breaker cooperate to close or interrupt the circuit. For this purpose, according to the invention, the electrical lines are connected to the Anchoring the same serving masts or girders (or other equivalent Fastening devices) fastened by means of two or more isolator chains, which are arranged in this way are that they are not in the same vertical plane as the! electrical lines themselves, but lie next to each other.

Die Zeichnung stellt zwei Ausführungsformen des Erfindungsgegenstandes beispielsweise dar, und zwar zeigt Abb. 1 die Vorrichtung gemäß der ersten Ausführungsform in Seitenansicht, Abb. iä dieselbe in Draufsicht. Abb. ib zeigt die Vorrichtung in einer Richtung winkelrecht zu Abb. 1 gesehen. Abb. 2 und 2a zeigen eine andere Ausführungsform in Seitenansicht und Draufsicht.The drawing represents two embodiments of the subject matter of the invention, for example Figure 1 shows the device according to the first embodiment in side view, Fig. iä the same in plan view. Fig. Ib shows the device in one Direction seen at right angles to Fig. 1. Figs. 2 and 2a show another embodiment in side view and top view.

In Abb. i, ia und ib sind die elektrischen Leitungen c mittels Isolatorketten α an denIn Fig. I, ia and ib, the electrical lines c are connected to the by means of insulator chains α

Claims

Masts ß ^x attached. These masts form sparring masts. By stretching (tensile stress) of the ropes or lines c , the insulator chains. α held taut. The masts e ¹ are at a somewhat lateral distance from the vertical plane, which goes through the Liev device c , attached, with the result that the isolator chains α not in the same vertical plane as the lines c Hegen, but rather form an angle to them. The connection between the insulator chains and the lines c is formed into a yoke / or the like, which carries the contacts required for the disconnector. The disconnector? h means of a pin with the -. a contact organ g right in Fig 1 is rotatably connected, while the other contact element g ¹ on the left in Figure 1 o of contact springs or the like is formed, between which the circuit breaker zo goes into current-closing position.... The circuit breaker can "of course" be attached in any other convenient manner without departing from the scope of the invention, and the circuit breaker can be operated by means of devices known for the purpose, for example by means of a loose disconnector rod or by means of pull cords which attached to hanging insulators suitable for the purpose and connected to a Hißorgan in a manner known per se.

The isolator chains α are kept taut by the tension in the lines c. Through the line c , the contacts g, g ¹ for the isolating switch. When this construction is used, wind pressure or the like acting in the lateral direction does not cause such lateral vibrations in the contact pieces g, g ¹ connected to the lines c , as is the case when the lines c with the masts ß ^x or! . are connected by means of insulator chains α , 'which lie in the same or in almost the same vertical plane as the lines c.

In the embodiment illustrated in Figs. 2 and 2a, the yokes f ^{1 are formed} into transverse pieces of relatively great length, and the insulator chains a, which are attached to transverse girders 1 and ² , are in this case parallel or mainly parallel to one another , but at some distance on each side of the vertical plane passing through the lines c. It is clear that in this embodiment too the stability aimed at above is achieved, at least to a high degree. The difference is only a question of dimensions, depending on the length of the cross pieces Z ¹ or - the mutual distance between the attachment points for the insulator chains on the carrier e. If the distance between the mentioned fastening points is dimensioned sufficiently large and the length of the quarrying pieces is made sufficiently small, Fig. 2a will form a geometrical figure which is generally the same as that of Fig

or similar

According to the embodiment illustrated in Fig. 2, the circuit breaker knife d is shown in an arc shape. If the line is interrupted, it is lifted upwards by means of appropriate, not illustrated devices. In addition, the device can be used for both emphasized and multi-phase systems with both one and two interruption points per phase. For operation, as stated above, any suitable device can be used, for example an ordinary loose disconnector rod or a fixed rod system that can also be expanded for three-phase drive in a manner known per se.

• claims; ■. .-. ·

i. Overhead line disconnector, the fixed contact pieces of which are located at the ends of the suspension insulators used for tensioning the incoming and outgoing overhead lines from the pylon, characterized in that two girders (ie ¹ , ^ ¹ ) two insulator chains "are worn side by side, the outer ends of which are attached to the fastening devices (/). for the incoming or outgoing overhead line (c), which also carry the attachment devices for the pole pieces (g ·, g ¹ ) of the disconnector or the pole pieces themselves.

2. Overhead line disconnector according to claim i, characterized in that the fastening devices for the lines consist of cross pieces (Z ¹ ), at the ends of which the tensioning isolator chains are fastened and which also the pole pieces (S: g ¹ ) or the fastening devices for the pole pieces of the disconnector (d) wear.

1 sheet of drawings