DE1919582U - SWITCH AND ISOLATION CABINET FOR ELECTRIC CABLES. - Google Patents

Description

Our reference: M 949

Control and separation cabinet for electrical cables

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The invention relates to a switchgear and isolating cabinet for electrical cables, the cabinet being the branching of a low-voltage power supply system and the parallel connection of a low-voltage electricity network and / or parts of a multi-phase distribution network.

It is known that such branching and parallel switching can be achieved by corresponding switching of the cables in a switch and disconnection cabinet, which is connected to the cable. guides is provided. Inside the closet are fixed Members arranged for fastening the conductors of the electrical cable, which are brought up to this cabinet.

the

2 ^ 2 * 5/12/65

The cabinet, on the other hand, contains movable links for the optional connection of the table conductors of one and the same phase. Before the branches are made there are various conditions to be observed. In particular, the performance of each cable, the load on each phase and any lifting circumstances and malfunctions.

According to the known state of the art, the different cable conductors belonging to one and the same phase are electrically connected to jaws, between which connections are made with the help of brackets. Man can in this way implement the visual cords for disconnection and connection according to requirements.

Because of the diversity of these realities, it is to everyone to meet the necessary connection possibilities, necessary to provide a relatively high number of brackets, which are of different structure. On the other hand, it follows from this that the viewing benches are fairly large Must have dimensions in order to be able to carry out all possible switching schemes. .--. - ... -

The invention seeks to solve this problem by

a

creates a cabinet that enables all cable switching in a simple, fast and economical way and although with brackets of a unitary embodiment, wherein the space required in the cabinet is reduced to a minimum. ■

According to the invention is a holding and separating cabinet
for electrical cables, the fasteners for the cable ladders that end in the cabinet and connecting? has members that make it possible to connect the conductors of one and the same phase with one another, characterized in that the fastening members of the conductors of the different phases on one and the same switchboard are distributed along parallel rows, so that each conductor of a phase is connected to a clamping jaw which is in line with two other jaws that
each belong to two connecting rails, which on both sides of the row of fastening members of the ladder
one and the same phase are arranged, and ,, that the desired circuit between the conductors is produced by removable brackets, which are elastically pressed between two of the three in-line clamping jaws. ■ - ■ - ^: - ^: - ^J -----

The arrangement of the jaws leading to the ladder

and

and belong to the same phase, it enables this way, - with a bracket, a ladder to one or to connect the other © of the two line rails! Due to this fact it is possible to divide the whole of the leaders of one and the same phase into two groups each group may not include a leader or, on the contrary, may include all.

In addition, if the ~ Clamping jaw does not receive a bracket, this cable remains for isolates himself.

In this way it is possible to lie to one another are exactly the same, and the number of which corresponds to the number of conductors that end in the cabinet, all of them desired switching and disconnecting connections for the various To make conductors of one and the same phase *

The invention is explained by way of example with reference to the drawing. Show it:

1 is a front view of a switching tank according to FIG Invention, whereby the ,, protective door and the bracket are removed, - _

.2

- 5 - ". ■ _: ■■

2 shows a section along the line II - II of FIG. with 'the cables removed,

Pig. 5 - Pig. 6th

schematic representations of various possible types of circuit for the conductors of one and the same Phase with the zabel removed, and

Pig. 7 is a schematic front view of a bracket of a known embodiment.

In the embodiment according to features 1 and 2, a switching and Trennsehrank shown for a song voltage network is provided, which has three phases and a neutral conductor. The cabinet itself is for four cables A, B, C, D The cabinet has, in a known manner, a metal box 1, the front side of which has an opening 2 forms, which are normally closed by a door 3 is (Pig. 2).

In the lower part of the metal box 1 there are four see de pipe socket 5 arranged. ,, each of which enables one of the cables A, B. C etc. ^ to be passed through.

on

On the rear side 6 of the metal box 1, an insulating wall 7 is attached, on which rows of insulating rods 8 are attached. On G-round one row per phase, whereby four rows are arranged one above the other and an insulating rod 8 for one cable ladder each result four insulating bars in the same row.

Each insulating rod 8 carries in its center the fastening members which are provided for the end of a cable ladder. This. Befestigungsgliejder be formed, for example ron a claw 9, - to the means of a group consisting of screws and nuts assembly 11: the core of the desired cable conductor is attached to the end portion of the twelfth The conductors a «, fc», o ,, d., Phase I of the cables A, B, C, D are attached to the first row of claws 9. In a similar way the conductors ap «.. eU of phase II are attached with the second row of claws 9, and so on. Each claw 9 is also firmly connected to a clamping jaw 13 which is arranged parallel to the respective insulating rod 8. ■ ".

The entire insulating rods 8 of one and the same row also each carry a set of two conductor rails 14

and 15

_ 7 -

and 15, or check parallel considered to "lend extend and which clamping jaws 16 * 17 carry the 'respectively are in line with the Klerpubacjcen 13, and the-Ίη reference are arranged symmetrically on the clamping jaws 15 .. Each end portion 12 of the cable conductor thus corresponds to three in a line. Clamping jaws -13 »16» 17 »of the clamping jaws 13 has the potential of the conductor under consideration, whereas the two clamping jaws 16 and 1 'are normally isolated therefrom ^;

Removable brackets 18 are provided (Pig.7), which are engaged between the clamping jaws 13 on the one hand and the clamping jaws 16 or 17 on the other hand. For this purpose, the length of the bracket 18 is essentially equal to half the distance between the clamping jaws 16 and the two associated line rails H waä 15 from one another. The number of brackets 18 is equal to the number of cable conductors.

According to a preferred embodiment, the brackets 18, which advantageously have a standard design, have to for this purpose, in a known manner, two recesses 21, which are located on pins 22 leading through the clamping jaws center. The bracket can also be provided with a profiled control handle 23, which in a known manner

that

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allows handling of the bracket by means of insulated handles, which corresponds to a device known per se are provided with a removable "lock".

The cabinet designed in this way enables all desired circuits to be implemented without difficulty between the conductors of one and the same phase, with only brackets 18 τοπ of a single type having to be used.

Are for the first two fastening points one and the same row bracket 18 between the jaws 13 and 16 (Pig. 3), and are used for the following two If the bracket is pressed in between the clamping jaws 13 and 17, then cables A and B are and keep cables C and D together »

The same circuit takes place for the following none, dvh. for the various other phases »

If the brackets 18 are arranged in the manner shown in Pig. 4, the cables A and C or B and D are connected together. One could also _gu: t provide a circuit through which the cable A and Wz & zvr, B and G were connected together (Pig.-5). -:. _;

The cables A-B-C-D could be connected together in the same way without difficulty, with all middle jaws 13 to the corresponding jaws of one and the same line line, for example line rail 14, would be connected, the other line rail 15 would then remain unused.

For example, there will be no brace in a middle jaw indented, the corresponding conductor is not connected.

The above-described storage and storage ranks bring significant technical advantages in that it enables a fundamental reduction in the number of bracket types required for the production of all switching schemes. The space required in the viewing cabinet is greatly reduced, and its connection panel enables an extension without difficulty in the event that one or more additional cables are to be brought to the cabinet. It is sufficient to provide fastening points continuously in a row for the conductors of the newly subordinated cables and to make the pairs of conductor sections _v ; H and 15 sufficiently long. It is then possible to accommodate one or more additional cables in the gehrank ^{* - r ■■■}

Other structural embodiments are also possible. In particular, the cabinet can be optionally arranged so that the rows of attachment points and in the same phase either horizontally or vertically. Likewise, the number of phases and the number of cables be arbitrary. In this way, it is possible in practice to produce barriers that have four to eight cables. In this case, each row belonging to a particular phase consists of four to eight insulating rods with the corresponding ones Connecting links on »

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Claims (3)

ΕΑ.2422Ϊ2-12.5.Β5 ■ - 11 * - Prot. sprinkle. hey 1) Switchgear and disconnection cabinet for electrical cables, in particular for multi-phase liederspannungsstroianetzen, the switchgear cabinet having fastening elements for the cable ladders that end in the viewing area and connecting elements that allow the conductors of one and the same phase to be connected to one another, characterized in that the! fastening members of the ladder of the different phases are distributed on one and the same holding board along parallel lines, that each ladder of a phase is connected to a clamping jaw which is in a line with two other clamping jaws, each belonging to two connecting rails , which are arranged on either side of the row of fastening members of the ladder of one and the same phase and that the desired circuit between the conductors is produced by removable brackets which are elastically "pressed in between two of the three in-line clamping jaws;.,. "". 'i "- ^v :'" ■ "- 2) Control cabinet according to claim 1 for a three-phase Power network with a neutral conductor, characterized in that the switchgear cabinet has four mutually parallel Has rows of fastening membersa for the cable ladder, and that three of these rows correspond to the different ones Phases and the fourth row belongs to the Hull ladder. 3) control cabinet according to claim 1, characterized in that that those on the connecting lines are one and the same Row located jaws are arranged symmetrically with respect to those jaws, which are directly connected to the fastening members of the cable ladders and that the connection brackets provided for the switch cabinet are identical to one another.