DE6608662U - 3-POLE HIGH VOLTAGE SWITCHING DEVICE. - Google Patents

Description

Sachsenwerk, Licht- und Kraft «Aktiongesollschaft, Munich

Pt. 444

Three-pole high-voltage switchgear.

«The innovation concerns a three-pole high-voltage switchgear small width, the current paths or poles of which are supported by post insulators attached to the switch.

conventional design and the poles or current paths of such

Older parallel to each other at the same distance by means of supporting soltors attached to a »row of counters. The distance between the poles is determined by the insulating properties of the air between the poles. Since the insulation capacity of the air is limited, a certain width of the switch cannot be fallen below. But the switch device width occurs i "plant because of cell division into essential and

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efforts are therefore made to produce particularly narrow switching devices.

It is known that the pole spacing and thus the switch width can be used can be kept low if you put insulating panels between the poles arranges. However, this measure is not very desirable by the customer. in the otherwise the width is not reduced sufficiently,

Furthermore, a space-saving push load isolating switch is known at that of the power lines in Droieck with horizontally attached insulation panels are arranged in a housing. This Schaltor points Although it has a very narrow width, it is very complex in structure. It can also only be operated with a compressed air drive. In addition, the switch requires all of the redesigns Structural parts of conventional switchgear,

The task of the innovation is now to measure the width of three-pole To reduce switching devices significantly, precautions should be taken that as large as possible standard Parts of conventional switching devices can be used.

This is Neuerungsgeeäß achieved _t that the center pole, or the average current path is arranged on support insulators, which differ in the length of the support insulators of the two other poles or current paths, and that preferably supporting insulators successive isolation rows are used.

An embodiment of the innovation is shown in the drawings. and is described in more detail below.

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660866211.11.71

Show it

Figure 1 shows a three-pole circuit breaker in side view,

FIG. 2 shows the circuit breaker shown in FIG in front view,

3 shows the circuit breaker shown in FIGS. 1 and 2 in a plan view.

With 1, 2 and 3, the switch poles are designated with different long post insulators 4.5 attached to a switch frame 6 are. The two outer poles 1, 3 are here of the same length Post insulators 4 attached. The support insulators 5 of the middle pole 2 differ in length from the outer poles 1, 3. The length of the shorter support insulators 5 is in accordance with The operating voltage of the switch device is dimensioned Support insulators 4, on the other hand, are dimensioned in such a way that the three Poles 1, 2 and 3 arranged at the corner, the required Polab & XJands available. It is useful here to have support insulators 4, 5 of two to use successive series of voltages. If the switching device is intended for the voltage series 10, the outer Poles 1, 3 of post insulators 4 of the voltage series 20 and the middle one Pole 2? On post insulators 5 of voltage series 10 carried. In this In this case, there will be a distance of approximately 240 mm between the outer poles 1, 3 and from the outer poles 1, 3 to the middle one Pole 2 results in a distance of about 200 mm »The purpose of transferring the switching device from voltage series 10 to 20 is the

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660866211.11.71

to isolate middle pole 2 from the outer poles 1, 3 and the switch frame 6 with insulating plates 7, 8. Of course, instead of insulating plates, insulating shells can be attached around poles 1, 2 and 3. Be insulating material is used, the assembly of an expediently takes place immediately below the supporting insulators 4.5, and the other on the head part of the supporting insulators 4 Spannuugsreihe 20 "It can enssehaltern Lasttr-on the support insulators 4 _r 5 also poles or Strombahnea of, Circuit breakers? * Or disconnectors are attached in a corresponding manner. A drive shaft 9 is mounted on the switch frame 6 and is connected by rocker arms 10, 11 to the movable contact pieces 12 of the PoIf * 1, 2, 3. The rocker arms 10, 11 are shaped identically, but have different lengths. The contact pieces connected to longer rocker arms 11 are driven at a higher speed. So that the S-holding pieces nevertheless reach the fixed contact pieces at the same time, the poles 1, 3 are provided with correspondingly longer tronnection sections 13 than the central pole 2 - separating dry 14. However, if you want to achieve the same switching pin speed at all poles 1, 2, 3, a translation, z. B. to provide a gear that compensates for the different lengths of the Schaltechwingcn.

The high-voltage switching device according to the innovation has the advantage that it is narrower than the usual devices. Essential parts of the known devices can be used. By additional Placing insulation panels between the polons can do that

660866211.11.71

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Switching device of the same basic construction for the next higher one Isolation series can be used.

660866211.11.71

Claims (7)

Protection claims Three-pole high-voltage switchgear with a narrow width, the current paths or poles of which are supported by post insulators attached to the switch frame are worn, characterized in that the central pole (2) or the central Current path is arranged on post insulators (5), which are in of the chants of the post insulators (4) of the other two poles (13) or current paths, and that preferably post insulators (4, 5) of two successive rows of insulation can be used. 2. Three-pole high voltage switchgear according to claim 1, since «· characterized in that for the switch Voltage series 10 the middle pole (2) or the aittlere stronsbahn of post insulators (5) of the voltage series 10 and the outer ones Poles (1, 3) or current paths of post insulators (4) of the voltage series 20 werdeho 3. Three-pole high-voltage switching device according to claim 1 and 2, there characterized by that for transfer j of the switch from voltage series 10 to voltage series ! the one or more on the post insulators (5) of voltage series 10 ; arranged pole or current path with insulating material plates (7, 8) and / or insulating shells is insulated from the switch frame (6) and the other poles (1, 3) or current paths. 6608662 11.11.71 • S · -7- 4. Three-pole switching device according to claim 3, characterized in that g e mark chnet that an insulating plate (7) immediately under the post insulators (4, 5) on the switch frame (6) and one (8) on the head part of the post insulators (4) of the voltage series 20. 5. Three-pole high-voltage switching device with a drive shaft mounted in the switch frame according to claim 1 to 4, characterized in that the drive shaft (9) drives the movable contact pieces (12) of the switching device via rocker arms (10, ll) in a manner known per se, and that the switching rockers (10, 11) of all poles (1, 2, 3) or current paths are shaped identically, but that of the central pole (2) has a different length than that of the outer poles (l, 3) or current paths and means are provided to achieve the same switching pin speed or precautions are taken to ensure simultaneous contact making or separation at all three poles (1, 2, 3) _o 6 «Three-pole high-voltage switching device according to claim 5, characterized in that the poles (1, 3) or current paths carried by post insulators (4) of greater length are provided with a correspondingly longer isolating distance . 7. Three-pole high-voltage switching device according to claim 5, characterized marked that the result of the different distances the poles (1, 2, 3) or the current paths of the drive 650866211.11.71 shaft (9) different gear shift speeds through gear ratios, e.g. B. Gear, balanced wcrdon 6608662 ii.ii.7i