CN201594712U

CN201594712U - High-voltage power switch

Info

Publication number: CN201594712U
Application number: CN2009201780236U
Authority: CN
Inventors: D·萨克斯尔; M·阿姆伯格
Original assignee: ABB T&D Technology AG
Current assignee: ABB Technology AG
Priority date: 2009-05-20
Filing date: 2009-09-25
Publication date: 2010-09-29
Anticipated expiration: 2019-09-25
Also published as: EP2273525A1; EP2273525B1; HUE030600T2; UA103384C2

Abstract

The utility model relates to a multiphase, in particular to a three-phase gas insulation high-voltage power switch of metallic packaging, wherein each phase is provided with power switch electrodes (11, 12, 28) which are arranged one by one in a common power switch shell (21); each phase is provided with at least two connection branches; the power switch shell (21) is provided with compartments (29, 30, 31) with the number corresponding to that of the electrodes (11, 12, 28) and with the front ends being opened; the compartments (29, 30, 31) are internally provided with the electrodes (11, 12, 28); and the opened front ends of the compartments (29, 30, 31) are closed through vault-shaped covers (22, 23) covering the front ends to lead the communicating space generated by the covers (22, 23) to realize gas communication among the single compartments (29, 30, 31).

Description

High-voltage circuit breaker

Technical field

The utility model relates to a kind of gas isolated high-tension electricity power switch.

Background technology

Such high-voltage circuit breaker has corresponding to the power switch electrode that keeps count of mutually, and they are arranged side by side in a plane or a vertex of a triangle setting.Single electrode can be laid in a packaging container that holds all electrodes, perhaps lays in each comfortable oneself packaging container for oneself.Common most polyphase power switch electrode is provided with in the boiler shape shell of a vertical installation, and inlet wire and outlet are perpendicular to be connected on the shell.

Under the situation of such boiler shape shell, need a lot of spaces, and also need a large amount of insulating gass in addition.

A kind of such switchgear is for example at document Schaltanlagenhandbuch (switchgear handbook) ABB, 11.Auflage (version), and 2006, Seite (page or leaf) 504, open among Bild (figure) 11-3.Describe that at boiler the power switch electrode that is provided with in the device needs big quantity space, the insulating gas amount of therefore introducing the metallic packaging container is very many.

The utility model content

Task of the present utility model is to provide a kind of power switch, saves space and position on the one hand by it, also saves insulating gas on the other hand.

This task is by a kind of heterogeneous, the gas isolated high-voltage circuit breaker of metallic packaging solves, every have a power switch electrode mutually, they one after the other are provided with in a public power switch shell mutually, and every have at least two mutually and connect branches, it is characterized in that, the power switch shell has the compartment that opens wide at its front end with the corresponding number of number of electrode, electrode is set in it, and each closes the open front end of compartment by a domeshape cap seal that covers front end, makes the gas that can be implemented between each single compartment by the connected space that is produced by lid be communicated with.。

According to the utility model, the power switch shell has corresponding to the unlimited compartment of the front end of the number of number of electrodes, and single electrode is set in it.The open front end of these compartments is respectively closed by a vault female cap that covers this front end.

By single power switch electrode is arranged on only having in the compartment of a unlimited gas compartment at its end of oneself, make that the gas connection between the single compartment all realizes at front end at every turn, can significantly reduce the insulating gas amount of use.

Dependent claims is taken from other favourable expansion and improvement of the present utility model.

Description of drawings

According to the accompanying drawing of an expression embodiment of the present utility model, explain and illustrate the utility model and other favourable expansion and improvement and additional advantage in detail.

In the accompanying drawing,

Fig. 1 represents a longitudinal section of power switch of the present utility model;

Fig. 2 represents along the sectional view of the line of cut II-II of Fig. 1;

Fig. 3 represents along the sectional view of the line of cut III-III of Fig. 1;

Fig. 4 schematically illustrates the power switch electrode that is positioned at a plane.

Embodiment

Fig. 1 represents a longitudinal section of power switch 10 of the present utility model, and this power switch 10 has corresponding to the

power switch electrode

11 and 12 that keeps count of mutually, wherein schematically illustrates out power switch electrode 11 in sectional view.Do not represent the parts in the switch compartment 13.A fixed contact and a movable contact are set in this switch compartment 13, and wherein movable contact is connected with insulating bar 14, and the latter stretches out from the end that is oppositely arranged with switch compartment 13 of power switch electrode 11.Insulating bar 14 is connected with yoke 15, connects other

power switch electrode

12 and 28 not shown insulating bar on yoke 15; The 3rd power switch electrode 28 is positioned at the front of cutting plane, and is therefore invisible.Yoke 15 has a middle body 16, forms arm 17 on it, and the end of arm 17 connects insulating bar 14.The middle body 16 of yoke 15 is connected with a drive link 18, the latter is by a thrust sleeve pipe 19 and transmission device 20 couplings, transmission device 20 is as hydraulic spring grease cup accumulator transmission device structure, and it is nonsensical for the utility model, so do not describe in detail here.Equally, thrust sleeve pipe 19 does not have important meaning for the utility model yet, so do not describe this thrust sleeve pipe 19 in detail yet.

Power switch electrode

11 and 12 is provided with in power switch shell 21.

Power switch electrode

11 and 12 also claims switch compartment electrode below.Power switch shell 21 also abbreviates shell 21 as, and it has the shape that lengthwise extends, and left end and right-hand member are respectively closed by the lid 22 and 23 of a domeshape freely at it.Thrust sleeve pipe 19 is positioned at and covers 22.The lid 22 and 23 of domeshape has flange 24,25, the corresponding flange 26 on they and the shell 21 and 27 fixing.

The sleeve pipe of the importing gas of not representing in detail can be provided on lid 22 and 23, and they for example can seal with 1 seal or like.

Have one with lid 23 lids 22 that form domeshape equally and connect cover 54, it can for example form flange on the safe unit 55 of explosion panels at one.Shell 21 unlikely damage under failure condition of safe unit 55 protection high-voltage circuit breakers.

With reference now to Fig. 2.

Fig. 2 represents the cross-sectional view of the more definite edge of saying power switch of power switch shell 21 (among Fig. 1) line of cut II-II.

Switch compartment electrode

11,12 is set and invisible switch compartment electrode 28 in Fig. 1 in shell 21.These three

switch compartment electrodes

11,12 and 28 are provided with on the summit of an isosceles triangle, and the plane of passing through 12,28 formation of switch compartment electrode of this isoceles triangle shape is horizontally disposed with below.

Shell 21 and

switch compartment electrode

11,12 and 28 couplings.Therefore it has the

compartment

29,30 and 31 with the corresponding number of number of

switch compartment electrode

11,12 and 28, and they are provided with one by one at the place, summit that switch

compartment electrode

11,12 and 28 is positioned at the isosceles triangle at its place equally.The compartment 29 that is used for switch compartment electrode 11 surrounds switch compartment electrode 11, chooses the distance of the outer surface of switch compartment electrode 11 to the inner surface of compartment 29 like this, makes to stop the arcing of switch compartment electrode 11 to shell 21.Compartment 29 respectively by

midfeather

32,33 from compartment 31 with opened in 30 minutes so that the part that

midfeather

32 and 33 had both formed compartment 29 also forms the part of

compartment

30 or 31, and in the corresponding way whole compartments is separated from each other.

Single compartment

29,30,31 forms tubular substantially, does not have gas to be communicated with between

compartment

29,30 and 31 in the zone of

switch compartment electrode

11,12,28.

Single compartment

29,30 and 31 opens wide at its free end, and common separately lid 22,23 sealings by covering

compartment

29,30 and 31.Therefore the gas that forms

compartment

29,30 and 31 at the two ends of shell 21 is communicated with.

Act on as single packaging container by

single compartment

29,30 and 31, this point can obviously be found out from Fig. 3 especially, reduce needed position on the one hand, significantly reduce the insulating gas amount that is positioned at shell 21 with respect to so-called boiler shape solution on the other hand.

In other words, power switch shell 21 forms by single pipe between front end, and their triangularities are arranged one by one, this point can obviously be found out from Fig. 3, here, per two pipes, compartment 29 respectively is connected by two

public midfeathers

32,33 with 30 with 31 or 29.

Fig. 1 represents that shell 21 forms three vaults perpendicular to the plane of propping up by two

switch compartments

30 and 31 and connects

cover

34,35 and 36, wherein expresses vault in detail and connect cover 35 in Fig. 2.

Observe Fig. 3 now.

Vault connects cover 36 and vault and connects and overlap 34 and 35 identically, and its cross section is a rectangle, and wherein two sidewalls 38 are all perpendicular to the longitudinally of

switch compartment

29,30 and 31, and on the contrary, sidewall 39 is in substantially parallel relationship to longitudinally; Sidewall 39 imports the outer surface of

compartment

30,31 substantially tangently, and with sidewall 38 constrictions, makes the free end of cross section towards

sidewall

38 and 39 that is parallel to by

switch compartment

31 and 30 planes of extending diminish a little.Sidewall 38 is connected with a closure wall 40 with 39 free ends at them, thereby it also seals vault 34 and 35 from last face closure vault 36.Perforate 41,42,43 is set on closure wall 40, the plate insulator or the

limit arc insulator

44,45 and 46 of sealing gas is set in it, they can with is connected

lead

47,48,49 connections.Connect

lead

47,48,49 then and lead to bus-bar in the mode that is not shown specifically.

Vault connect cover 34 structure and vault connect overlap 36 identical; Therefore insulator that is provided with there and side connecting conductor formula no longer describe in detail here.

Vault connects cover 34,35 and can be connected with a closing cap 37 as blind covering separately with 36.Can see

sidewall

50 and 51 among Fig. 2 internally, and these sidewalls are invisible in Fig. 3 corresponding to sidewall 39.

Power switch shell 21 is provided with flatwise with the power switch electrode or the

switch compartment electrode

11,12 and 28 that are provided with within it, and is fixed on the base 53 by support 52 by its flange 26 and 27.

At the power switch electrode that is provided with at a vertex of a triangle place the utility model has been described.But single power switch electrode is set in a plane as shown in Figure 4, corresponding solution also is provided.They can use a pipe separately to surround in an identical manner at that time, just as according to Fig. 1 being provided with to Fig. 3, and have the vault that has plate insulator or limit

arc insulator

44,45 and 46 equally and connect

cover

34,35 and 36, but their not expressions in Fig. 4.Reference numerals list

10 power switch

11 power switch electrodes

12 power switch electrodes

13 switch compartments

14 insulating bars

15 yokes

16 middle bodies

17 arms

18 drive links

19 thrust sleeve pipes

20 transmission devices

21 power switch shells, shell

22 lids

23 lids

24 flanges

25 flanges

26 flanges

27 flanges

28 power switch electrodes

29 compartments

30 compartments

31 compartments

32 midfeathers

33 midfeathers

34 vaults connect cover

35 vaults connect cover

36 vaults connect cover

37 closing caps

38 sidewalls

39 sidewalls

40 connecting walls

41 perforates

42 perforates

43 perforates

44 limit arc insulators

45 limit arc insulators

46 limit arc insulators

47 connect lead

48 connect lead

49 connect lead

50 sidewalls

51 sidewalls

52 supports

53 bases

55 safe units

Claims

One kind heterogeneous, the gas isolated high-voltage circuit breaker of metallic packaging, every have a power switch electrode (11 mutually, 12,28), they one after the other are provided with in a public power switch shell (21) mutually, and every have at least two mutually and connect branches, it is characterized in that, power switch shell (21) has and electrode (11,12, the compartment (29 that opens wide at its front end of the corresponding number of number 28), 30,31), electrode (11 is set in it, 12,28), and compartment (29,30,31) each vault female cap (22 of open front end by a covering front end, 23) sealing makes and passes through by lid (22,23) connected space of Chan Shenging can be implemented in each single compartment (29,30,31) gas between is communicated with.
2. power switch according to claim 1, it is characterized in that compartment (29,30,31) forms by pipe, and electrode (11,12,28) is set in it, wherein, the external diameter of electrode (11,12, the 28) insulating capacity of distance by gas of leaving the internal diameter of pipe determined.
3. power switch according to claim 1 and 2 is characterized in that, the pipe that forms power switch electrode (11,12,28) is equally each other in the triangle setting.
4. power switch according to claim 1 and 2 is characterized in that, power switch electrode (11,12,28) is provided with in a plane.
5. power switch according to claim 1 and 2 is characterized in that, each the single pipe that forms compartment (29,30,31) separates by a public separately wall and adjacent separately pipe.
6. power switch according to claim 5 is characterized in that, the separately wall between the compartment (29,30,31) respectively forms the part of pipe.
7. power switch according to claim 1 and 2, it is characterized in that, power switch shell (21) has vault and connects cover (34,35,36), they perpendicular to the longitudinally of shell (21) from its protrusion or form thereon, in upward formation perforate (41,42,43) of closure wall (40) freely, limit arc insulator can be set in it.
8. power switch according to claim 5, it is characterized in that, be provided with three vaults altogether and connect cover (34,35,36), one of them vault connects cover and guides the lead that is drawn towards power switch electrode (11,12,28) into, in addition guide first or second bus-bar into for two, it is available or by a blind plate sealing that the vault that does not wherein have any connection lead connects cover.
9. power switch according to claim 1 and 2, it is characterized in that the lid (22,23) that is oppositely arranged with power switch electrode (11,12,28) switch compartment (29,30,31) separately has a thrust sleeve pipe (19) that is used for the transmission device (20) of power switch electrode.