CN102782972A - Gas-insulated, metal-clad, single-phase or polyphase switchgear unit - Google Patents
Gas-insulated, metal-clad, single-phase or polyphase switchgear unit Download PDFInfo
- Publication number
- CN102782972A CN102782972A CN2011800129587A CN201180012958A CN102782972A CN 102782972 A CN102782972 A CN 102782972A CN 2011800129587 A CN2011800129587 A CN 2011800129587A CN 201180012958 A CN201180012958 A CN 201180012958A CN 102782972 A CN102782972 A CN 102782972A
- Authority
- CN
- China
- Prior art keywords
- switchgear
- metal bellows
- free end
- coating portion
- inner wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/002—Joints between bus-bars for compensating thermal expansion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
- H02G5/063—Totally-enclosed installations, e.g. in metal casings filled with oil or gas
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Installation Of Bus-Bars (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to a gas-insulated, metal-clad, single-phase or polyphase high-voltage switchgear unit, comprising a long cable, which has a tubular cladding and a number of internal conductors (16, 17; 32) corresponding to the number of phases, and a compensation device (11) for offsetting temperature-dependent changes in length of the cable. The cladding of the cable part of the compensation device (11) has a first tubular cladding section (12, 42) on which a connector (13) extending perpendicular thereto is integrally formed for connecting a further cable. A metal bellows (19, 20; 40, 41) is fastened to each end of the tubular cladding section (12, 42), and the free ends of said metal bellows are fixed spaced apart by means of a holder (25, 49).; The internal conductor in the tubular cladding portion (12, 42) is electrically conductively connected to the internal conductor (17, 23) which extends perpendicular thereto and is associated with the connectors (13) via a sliding contact connection (18).
Description
Technical field
The present invention relates to a kind of as described in the preamble gas isolated, metallic cover, single-phase or heterogeneous switchgear according to claim 1.
Background technology
The switchgear of metallic cover comprises the tubular metallic cover portion (Metallkapselung) of sealing, is mounted with quantity and the corresponding inner wire of quantity mutually therein.In the inside of case, exist and be in the insulating gas under the pressure, preferably SF
6When the length of metallic cover portion surpasses a certain size, since self or external heat when producing variations in temperature length or angle become obviously, it must be balanced.
There is different arrangements at this.Be somebody's turn to do the length variations that is caused by temperature for balance, each run (Leitungsabschnitte) can interconnect via compensating element,, wherein, is provided with for example Z-shaped dihedral section, and it produces dislocation via bending.To consider the material stress that improves at these crooked position places and all are additionally absorbed by the case side through power that internal gas pressure produces in addition.
Replace Z-shaped dihedral section, also can be provided with the middleware of U-shaped, wherein, run is connected in the free end of the limit leg of middleware.Length variations causes that the limit leg of middleware twists mutually.
Also there is the possibility that moving meter is set, is provided with so-called horizontal assembling device (Quermontageeinrichtung) therein.Yet this is needed the especially dynamic seal (packing) portion of coating portion, and it is expensive and unreliable.Must on the whole useful life of switchgear and under all environmental impacts, protect sealing area not contaminated, avoid to cause the damage of gas leakage thus.In long balance stroke (Ausgleichshub), sealing must correspondingly wear-resisting and additionally need flexible bellows (Balg), and is not contaminated with the protection sealing area.Gas internal force must compensate via groups of springs assembly (Federpaketanordnung).The shortcoming of this assembly is, only obtains less haul distance (Hubweg).In addition, the gas internal pressure can only be put for the gas pressure of confirming through the force compensating of spring and adjust, and makes that the working point changes when gas loss or pressure raising in spring characteristic curve.
In addition, only having a metal bellows is possible as movable member and the assembly that has a spring compensation, wherein, can compensate only working point via spring here.When departing from, produce an adjustment power, it causes moving in this assembly.
In addition, the metal bellows of known series connection, wherein, the suitable combination through the diameter in metal bellows, each other coordinated comes the power of balanced action on the movable part of compensator, make this assembly in this working point with pressure independent.
Known a kind of compensation arrangement from file DE 10 2,007 038 934 A1 thus; Three metal bellowss are interrelated with suitable manner altogether therein; Wherein, This device has compensated chamber and expanding chamber, keeps constant thereby the summation of the volume of compensated chamber and expanding chamber is approximate when the length variations of pipeline.
Known a kind of compensation arrangement that is used for pipeline from file DE 196 10 151 C1, it has main compensator and at least two auxiliary compensators, and wherein, compensator is configured to metal bellows.
Summary of the invention
The switchgear that the purpose of this invention is to provide the type that a kind of beginning mentions, compensation therein is independent of gas pressure and temperature, makes compensation on whole temperature range, exist, and wherein, has simplified layout with respect to known compensation arrangement.
This purpose realizes according to the invention through the features of claim 1.
According to the present invention; The coating portion of duct portion (Leiterteilstueck) has the first tubular section; Be molded with the adapter that is used to connect another conduit (Stutzen) that stretches perpendicular to this at Qi Chu; Wherein, respectively be fixed with metal bellows at the place, end of the first tubular section, its free end has spacing ground to fix by means of holding device; And wherein, the inner wire in tubular coating portion section is connected via sliding contact connecting portion (Gleitkontaktverbindung) conduction ground with the inner wire that stretches perpendicular to this, be associated with adapter.
In the illustrated in the present invention arrangement, so use the combination that constitutes by two metal bellowss, make it by compensation fully and in the working point, (that is to say in normal condition) do not have masterpiece to use movably on the parts.Working point and gas pressure are irrelevant, thereby on whole pressure and temperature scope, have compensation and only must absorb the skid force (Verschiebungskraft) that is extended and caused by length.
Because current path is crooked via taking over, possibly use two identical metal bellowss to be used for compensation.Employed member makes up simply and can be assembled by standardized part.
Length compensation is only limited by the stroke of metal bellows at this, thus with simple mode for example can realize+/-stroke of 80mm.Also can use the shown assembly that has the optional feature that is used for direct tietransformer on a small quantity, wherein, not only vibration compensation but also length and angle compensation are all realized.
Can from dependent claims, obtain other favourable design and improvement project of the present invention.
Description of drawings
Should set forth in detail and explanation the present invention, other design of the present invention and improvement project and additional advantage according to the accompanying drawing that schematically shows four designs of the present invention therein.
Wherein:
Fig. 1 to 3 has shown the compensation arrangement that has different connection parts,
Fig. 4 shown another design of the present invention and
Fig. 5 has shown the variant according to the embodiment of Fig. 3.
Embodiment
Should be with reference to figure 1.
Fig. 1 has shown the regional compensation arrangement 11 of switchgear of the switchgear of metallic cover.It has tubular metallic cover portion section 12 as middleware, is molded with in the zone therebetween to take over 13, and its longitudinal axis L-L perpendicular to coating portion 12 stretches.13 places are connected with cage walls (Kapselungsrohr) 15 via flange connecting portion 14 in adapter, and wherein, the center line of adapter 13 aligns with the center line of cage walls 15.
In coating portion section 12 (being also referred to as coating portion or middleware 12), have the inner wire 16 of guide current, it preferably is arranged within the coating portion 12 coaxially.Be provided with another inner wire 17 perpendicular to inner wire 16, it is connected via sliding contact connecting portion 18 with inner wire 16.The end of coating portion 12 is corresponding to be connected with metal bellows 19 or 20, and its free end 21 and 22 is fixed on the relative face of limit leg 23,24 of holding device 25 of U-shaped.Metal bellows 19 and 20 installation for example can realize by means of the flanged ring that is not shown specifically at this (Flanschringe).The flanged ring itself that is used for metal bellows is known.The end of such metal bellows is crimped around the inner edge of the opening of the circle of flanged ring, and this is shown specifically in the design of Fig. 4.Arrangement in this diagram at Fig. 1 to 3 is pure schematic.Two metal bellowss 19 and 20 free end finish face (Abschlussflaeche) A in other words
1And A
2Be identical, make that the pressure in the inside of coating portion 12 changes the not influence of possible mobility to middleware 12.
Promptly on direction of arrow P, can be connected with another conduit of the switchgear of coating to the right.If now owing to for example be connected in the thermal impact in switchgear switchgear or that the be connected in cage walls 15 places zone on the right; Produce the motion change that for example on double-head arrow direction P1, is orientated owing to temperature fluctuation; One of metal bellows (for example metal bellows 19) are compressed so, and opposite metal bellows 20 is drawn back.Sliding contact connecting portion 18 no problem ground allow this situation, wherein because the structural design of metal bellows 19 and 20, can hold until approximately+/-stroke of 80mm.Because metal bellows 19 and 20 and face A
1And A
2Identical, when middleware 12 moves, in the inside of coating portion, do not produce pressure and change and the variable density of insulating gas thus.
In the embodiment according to Fig. 2,13 places are connected with pipe fitting 30 and the angle-shaped piece (Winkelst ü ck) 31 that has inner wire 32 in adapter.Form L shaped duct portion thus, it is connected in takes over 13 places.The length variations of heat for example can be absorbed by compensation arrangement 11 via coating member 26 or via L shaped conduit 30.
In the embodiment according to Fig. 3,19 places are connected with pipe fitting 33 at bellows, and it is fixed on limit leg 23 places of the holding device 25 of U-shaped.As visible from Fig. 3, in the inside of this pipe fitting 33, can be provided with support insulator 34, it additionally supports this inner wire 16 so there when inner wire 16 is given prominence near limit leg 23.In diagram, do not use support insulator 34 according to the accompanying drawing of Fig. 5; And inner wire 16 greatly about take over 13 with limit leg 23 between in termination in the heart.The length freely of inner wire 16 is only set for corresponding to the sliding motion of inner wire 16 about sliding contacting part 18 at this.In any case inner wire 16 does not allow from sliding contacting part 18, to skid off.
(it is through face A by means of lid for the metal bellows 19 of Fig. 1 and 2 and 22
1Or A
2Illustrate) seal, wherein as described above, face A
2Also can form by insulator.
Angle-shaped piece 31 is the standard angle-shaped piece here, and high-voltage line utilizes it to continue guiding.
Sliding contacting part 18 for example can be configured to the multilayer sliding contacting part; This contact site can so be constructed under certain prerequisite, makes it also can allow inner wire 17 or 32 about inner wire 16 rotations.
Now should be with reference to figure 4.
In the embodiment according to Fig. 1 to 3, holding device is configured to the member of U-shaped.In the design according to Fig. 4, two metal bellowss 40 and 41 are connected to middleware 42 places that are configured to manage.Free end in metal bellows 40 and 41 is fixed with flanged ring 43 and 44, and wherein, two metal bellowss 40 are connected with 44 with flanged ring 43 with 46 by means of flanging part (Umboerdelung) 45 with 41 free end.Flanged ring 43 and 44 has a plurality of through holes 47 and 48, and each flanged ring 43,44 only illustrates one of them.Through hole 47 and 48 distributes equably.The through hole of aiming at each other 47 and 48 each free end by the bar that spaces (Distanzstange) 49 penetrate; Wherein, Place, end at each bar 49 that spaces respectively is provided with external screw thread section 50 and 51, the zone of the through hole 47,48 under it is arranged in and the side of lap-joint flange ring 43 and 44.The side of flanged ring 43 and 44 is tightened regularly as locking nut through retention nut 52 to 55, possibly on the both sides of each flanged ring 43,44, respectively be fixed with retention nut 52,53 and 54,55 thus.With this mode, the bar 49 that spaces is fixedly connected with flanged ring 43,44 and with the holding device that acts on flanged ring 43,44, makes the spacing of flanged ring 43 and 44 keep constant.
The situation second line of a couplet that in the middle of flanged ring 44 is in, connects insulator 56 (it can be configured to insulation) is connected to pipeline 57.
The metal bellows 40 (not being connected with other conduit at its place) that is positioned at the left side in the drawings utilizes cover plate 58 to seal airtightly here.But certainly also can consider to utilize other device of its closed metal bellows 40.
Because the possible length variations of the bar 49 that spaces that variations in temperature causes is compared and can be ignored with the length variations of pipeline at this.
From the clarity reason, not shownly in Fig. 4 be molded in the adapter (it is corresponding to the adapter 13 of Fig. 1) that middleware 24 (it has Reference numeral 12 in Fig. 1) is located vertically.
Fig. 1 to 4 has shown the switchgear of single-phase coating; Certainly exist in the possibility of using this compensation arrangement in the switchgear of heterogeneous coating, in the inside of coating portion, be provided with quantity and the corresponding inner wire of quantity mutually therein.In this situation, the portion of coating in case of necessity section 12 must be constructed on diameter in order in the zone of sliding contacting part, to keep enough isolation spacings with enlarging.
List of numerals
11 compensation arrangements
12 coating portions
13 take over
14 flange connecting portions
15 cage walls
16 inner wires
17 another inner wires
18 sliding contact connecting portions
19 metal bellowss
20 metal bellowss
21 free ends
22 free ends
23 limit legs
24 limit legs
The holding device of 25 U-shapeds
26 coat pipe fitting
30 pipe fittings
31 angle-shaped pieces
32 L shaped inner wires
33 keep pipe
34 support insulator
40 metal bellowss
41 metal bellowss
42 middlewares
43 flanged rings
44 flanged rings
45 flanging parts
46 flanging parts
47 through holes
48 through holes
49 bars that space
50 threaded sections
51 threaded sections
52 nuts
53 nuts
54 nuts
55 nuts
56 insulators
57 conduits
58 shuts.
Claims (6)
1. gas isolated, metallic cover, single-phase or heterogeneous high voltage switchgear, it has: long conduit, it has tubular coating portion and quantity and the corresponding inner wire (16,17 of said quantity mutually; 32); And have the compensation arrangement (11) that is used for the said conduit of balance by the definite length variations of temperature; It is characterized in that the coating portion of the duct portion of said compensation arrangement (11) has the first tubular coating portion section (12,42); Be molded with the adapter that is used to connect another conduit (13) that stretches perpendicular to this at Qi Chu; Place, end at said tubular coating portion section (12,42) respectively is fixed with metal bellows (19,20; 40; 41); Its free end has spacing ground to fix by means of holding device (25,49), and at said tubular coating portion section (12; 42) inner wire in is connected via sliding contact connecting portion (18) conduction ground with the inner wire (17,32) that stretches perpendicular to this and be associated with said adapter (13).
2. switchgear according to claim 1 is characterized in that, the flanged ring that construct on said holding device (25) U-shaped ground and the free end utilization of said metal bellows (19,20) is installed in its place is fixed on the place, inboard of limit leg with aiming at each other.
3. switchgear according to claim 1 is characterized in that, said holding device forms through the bar that spaces (49), and the free end of said metal bellows (40,41) utilizes the said bar that spaces (49) to have spacing ground to keep.
4. switchgear according to claim 3 is characterized in that, the said flanged ring (43,44) of free end that is connected in said metal bellows (40,41) is by means of locking nut (52,53; 54,55) be fixedly connected with the said bar that spaces (49).
5. according to each described switchgear in the aforementioned claim, it is characterized in that said holding device (25) is fixed on the place, end of another run (26) of said switchgear under the situation of centre connection insulation.
6. according to each described switchgear in the aforementioned claim, it is characterized in that, be connected with the cannula member (15) of straight line or be configured to L shaped angle-shaped piece (30) at the free end of said adapter (13).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010010795.6 | 2010-03-09 | ||
| DE102010010795 | 2010-03-09 | ||
| DE102010019367.4A DE102010019367B4 (en) | 2010-03-09 | 2010-05-05 | Gas-insulated metal-enclosed, single- or multi-phase switchgear |
| DE102010019367.4 | 2010-05-05 | ||
| PCT/EP2011/000986 WO2011110298A2 (en) | 2010-03-09 | 2011-03-01 | Gas-insulated, metal-clad, single-phase or polyphase switchgear unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102782972A true CN102782972A (en) | 2012-11-14 |
Family
ID=44508036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800129587A Pending CN102782972A (en) | 2010-03-09 | 2011-03-01 | Gas-insulated, metal-clad, single-phase or polyphase switchgear unit |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR20130008541A (en) |
| CN (1) | CN102782972A (en) |
| DE (1) | DE102010019367B4 (en) |
| WO (1) | WO2011110298A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110603697A (en) * | 2017-05-08 | 2019-12-20 | Abb瑞士股份有限公司 | Gas insulated wire, gas insulated switchgear and method therefor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017200742A1 (en) | 2017-01-18 | 2018-07-19 | Siemens Aktiengesellschaft | Encapsulation housing arrangement for an electric power transmission device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2626247A1 (en) * | 1976-06-10 | 1977-12-15 | Siemens Ag | ARRANGEMENT TO COMPENSATE FOR LENGTH CHANGES IN THE ENCLOSURE TUBES OF ELECTRIC COMPRESSED GAS-INSULATED SWITCHGEAR |
| CH649658A5 (en) * | 1981-02-23 | 1985-05-31 | Sprecher & Schuh Ag | Earthquake-protected connecting cable for a metal-encapsulated, electrical high-voltage switching installation |
| DE102007038934A1 (en) * | 2007-05-10 | 2008-11-20 | Abb Technology Ag | Device for compensating length changes in pipeline, has compensation chamber whose volume is changeable by length change of pipeline |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9113013U1 (en) * | 1991-10-17 | 1992-03-05 | Siemens Ag, 8000 Muenchen, De | |
| DE19610151C1 (en) | 1996-03-15 | 1997-09-11 | Hans Rattay | Axial compensator especially for pipes containing gas and fluid |
| DE19616179C1 (en) * | 1996-04-12 | 1997-04-03 | Siemens Ag | Right-angle coupling-piece for gas-insulated tubular conductor assemblies of HV installations |
| DE19815151C1 (en) * | 1998-03-27 | 1999-10-07 | Siemens Ag | Enclosure section for gas-insulated high-voltage (HV) switchgear |
-
2010
- 2010-05-05 DE DE102010019367.4A patent/DE102010019367B4/en not_active Expired - Fee Related
-
2011
- 2011-03-01 CN CN2011800129587A patent/CN102782972A/en active Pending
- 2011-03-01 KR KR1020127023346A patent/KR20130008541A/en not_active Application Discontinuation
- 2011-03-01 WO PCT/EP2011/000986 patent/WO2011110298A2/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2626247A1 (en) * | 1976-06-10 | 1977-12-15 | Siemens Ag | ARRANGEMENT TO COMPENSATE FOR LENGTH CHANGES IN THE ENCLOSURE TUBES OF ELECTRIC COMPRESSED GAS-INSULATED SWITCHGEAR |
| CH649658A5 (en) * | 1981-02-23 | 1985-05-31 | Sprecher & Schuh Ag | Earthquake-protected connecting cable for a metal-encapsulated, electrical high-voltage switching installation |
| DE102007038934A1 (en) * | 2007-05-10 | 2008-11-20 | Abb Technology Ag | Device for compensating length changes in pipeline, has compensation chamber whose volume is changeable by length change of pipeline |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110603697A (en) * | 2017-05-08 | 2019-12-20 | Abb瑞士股份有限公司 | Gas insulated wire, gas insulated switchgear and method therefor |
| CN110603697B (en) * | 2017-05-08 | 2021-08-03 | Abb电网瑞士股份公司 | Gas insulated wire, gas insulated switchgear and method therefor |
| US11133653B2 (en) | 2017-05-08 | 2021-09-28 | Abb Power Grids Switzerland Ag | Gas-insulated line, gas-insulated switchgear and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011110298A2 (en) | 2011-09-15 |
| DE102010019367B4 (en) | 2014-05-08 |
| WO2011110298A3 (en) | 2012-03-22 |
| DE102010019367A1 (en) | 2011-09-15 |
| KR20130008541A (en) | 2013-01-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |