CN204793979U - A equip for assembling single -phase or three -phase cable termination - Google Patents

A equip for assembling single -phase or three -phase cable termination Download PDF

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Publication number
CN204793979U
CN204793979U CN201520233123.XU CN201520233123U CN204793979U CN 204793979 U CN204793979 U CN 204793979U CN 201520233123 U CN201520233123 U CN 201520233123U CN 204793979 U CN204793979 U CN 204793979U
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CN
China
Prior art keywords
shell
extension part
main shell
cable
closure element
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Active
Application number
CN201520233123.XU
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Chinese (zh)
Inventor
C.普拉贾帕蒂
M.哈拉斯
M.德施
H.普罗布斯特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Energy Co ltd
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ABB T&D Technology AG
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00Cable fittings
    • H02G15/20Cable fittings for cables filled with or surrounded by gas or oil
    • H02G15/22Cable terminations
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • H02B13/0358Connections to in or out conductors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G5/00Installations of bus-bars
    • H02G5/06Totally-enclosed installations, e.g. in metal casings
    • H02G5/066Devices for maintaining distance between conductor and enclosure
    • H02G5/068Devices for maintaining distance between conductor and enclosure being part of the junction between two enclosures

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Cable Accessories (AREA)
  • Patch Boards (AREA)

Abstract

The utility model relates to an equip for assembling single -phase or three -phase cable termination, wherein cable termination is used for being connected to the high voltage cable with the switching device subassembly, the equipment includes: at least one main shell (20), it is unlimited at least in one side to have one or three location in wherein cable junction terminal (55, 56), be connected to under the various condition in order being used for go up mutually for one of the high voltage cable, at least one shell extension portion branch (40), it all is open in both sides, and the fastening is in on the open end of main shell (20), at least one bottom closure member (30), its optionally fastening is in main shell (20) or on the open end of shell extension portion branch (40) to have and make in one of them or three passage orifice (31, 32, 33).

Description

For assembling equipment that is single-phase or threephase cable terminal
Technical field
The present invention relates to the cable termination for being connected to by switchgear assembly on high-voltage cable.
Background technology
Cable termination is interpreted as meaning cable joint, its need switchgear assembly manufacturer encapsulation switchgear assembly in provide.At present this is a kind of single-phase or threephase cable terminal, and it is for by high-voltage switch device assembly, and especially gas isolated switchgear assembly is connected on single-phase or three-phase high-voltage cable.Special concern mainly uses the voltage range of the 72.5kV to 170kV of threephase cable joint.For the object of gas wrapping, as the safeguard measure avoiding directly contact and environmental impact, the joint between cable and switchgear assembly is encapsulated in metal shell.This shell is for good and all arranged in switchgear assembly.Therefore cable termination forms cable socket, and cable socket is pre-installed in switchgear assembly.This cable socket is connected on cable segment connector, and cable segment connector is assemblied on cable end piece, thereby establish electrical connection.
The cable termination used now has the design of different length, or sometimes even has the design matched with predetermined voltage range, wherein for each predetermined length and each predetermined voltage range provide the cable termination of private type.Each independent cable termination of the cable termination of these different designs types comprises special Welding Structure, and it comprises base plate and shell.
Result produces shell configurations different quite in a large number, and it needs corresponding high-caliber storage and operating cost, to avoid confusion and incorrect installation.
Summary of the invention
From prior art, therefore object of the present invention is to provide the cable termination that a group can be reduced this expense.
This object is realized for the equipment assembled for switchgear assembly being connected to the single-phase or threephase cable terminal on high-voltage cable by a kind of, and it comprises
Main shell, it is at least unlimited in side, and has one or three cable be positioned at wherein and connect end, goes up mutually for of being connected to high-voltage cable in all cases,
Shell extension part, it is all unlimited in both sides, and is fastened on the openend of main shell,
Bottom closure element, it is optionally fastened on the openend of main shell or shell extension part, and has and be manufactured in one of them or three access portal.
Utilize this basic equipment of equipment, by directly closing main shell with bottom closure element, or by being assemblied in main shell expansion to change to predetermined larger lengths between main shell and bottom closure element, thus the cable termination that two have different length can be produced.This equipment is feasible, because be standardized now for the length of the cable termination of high-voltage switch device assembly.If except two length, need even shorter or longer cable termination, other main shell expansion so can be provided.
In addition, this equipment is also scalable, so that main shell and shell extension part all can have at least two different width, and bottom closure element correspondingly can have at least two zone cross-sectional of different size.
Like this, quantity and the complexity of the configuration of different cable termination can be reduced.The production of switchgear assembly is simplified in cable termination, because the material needing to sort and process has quite low bandwidth, and simplify in the operation storing and be installed to period in switchgear assembly, because be made into quantity that is available or that need to be made into available component to obtain sizable minimizing.
In order to simplify the assembling of corresponding required cable termination further, in all cases, main shell and shell extension part both provide peripheral flange.Flange is used for main shell and shell extension part to be connected by screw.Can advantageously make screw hole or screwed hole in these flanges, thus allow the assembling being connected by screw and simplifying cable termination.
For three-phase design, the bottom closure element forming this equipment part can have Lu Luo (Reuleaux) the leg-of-mutton shape of sphering, wherein be provided with three access portal, make in all cases, the distance between the periphery and the periphery of reuleaux triangle of access portal is at least arranged in the region of of three rounded corners.Therefore, at least the cross section of the openend of main shell and shell extension part also has the shape of this reuleaux triangle.Result produces a kind of compact structure more more suitable for circular cross-sectional area.
Main shell can have at least one opening in side surface, for the object of assembling high voltage recognition unit.High voltage recognition unit is a kind of capacitance sensor preferably, and it is for identifying whether high voltage is applied to the shell of cable termination.Which improves when actuating cable terminal or when the fail safe when high-voltage switch device assembly works.When three-phase design, when provide for three high voltage recognition units altogether three openings time, this situation can further be improved, and wherein three openings are all arranged near one of them end of three cable end pieces, and cable end piece extends in inside.
If switchgear assembly is gas isolated switchgear assembly, so shell extension part can have at least one opening in side surface, and it fills the object of joint and/or density sensor for assembling gas.Therefore the gas shell aperture of being correlated with is feasible to the fixed allocation of shell extension part, because usually also only just need the expansion of cable termination to design in gas isolated situation.
In addition, be also favourable when Electric arc monitoring unit is also assembled on cable termination.For this reason, corresponding connection opening can be located in the side surface of main shell or the side surface of shell extension part.
In addition, main shell or shell extension part can have opening in side surface, and for the object of assembling explosion disk, namely for the predetermined breakaway poing of air chamber, air chamber is formed by cable termination.
When cable end piece adopts form of frusto-conical, the form of frustum of a cone whether is also adopted regardless of main shell and shell extension part, all can be assembled in intention in the bottom closure element on main shell and provide access portal, it has the diameter less than the access portal in the bottom closure element be fastened in shell extension part.As alternative, when the openend of main shell and shell extension part has identical configuration, single bottom closure element can be provided in equipment, access portal in described bottom closure element is enough large through selecting, to be assembled in the inside truncated cones end of the cable end piece of shell extension part.
Accompanying drawing explanation
The possible three-phase design of the present invention and described invention is described in more detail now with reference to exemplary embodiment illustrational in other figure, wherein:
Fig. 1 shows a kind of exemplary gas isolated switchgear assembly with cable termination;
Fig. 2 a shows a kind of 3-D view of cable termination, and it comprises main shell and bottom closure element;
Fig. 2 b shows a kind of 3-D view of cable termination, and it comprises main shell, shell extension part and bottom closure element;
Fig. 3 a, 3b show the sectional view of the cable termination of Fig. 2 a and 2b of the not tape cable end of looking from the side;
Fig. 4 a, 4b show the sectional view comprising the cable termination of Fig. 2 a and 2b of cable end piece of looking from the side; And
Fig. 5 a, 5b show the plane graph of the corresponding bottom closure element of the cable termination of Fig. 2 a and 2b.
Embodiment
Gas isolated switchgear assembly 1 shown in Fig. 1 is positioned on base 3, and there is following part: control cabinet 4, the bus 5 with composite type isolation and earthed switch, circuit-breaker 6, current transformer 7, voltage transformer 8, composite type circuit are isolated and earthed switch 9, antiground switch 10 and cable termination 2, and wherein high-voltage cable 11 and 12 is connected on cable termination 2.Third high voltage cables, the third phase namely in three-phase is sightless in the drawings, because it is directly positioned at after high-voltage cable 11.
According to the equipment proposed here, integrally formed cable termination 2 is wanted to be substituted by the manifold cable termination of modular construction.
The example of building cable termination according to the equipment proposed is shown in figure below, wherein Fig. 2 a to 5a presents the view of first cable termination with modular construction and the first length, and Fig. 2 b to 5b presents the view of second cable termination with modular construction and the second length.
Fig. 2 a shows the 3-D view of the first cable termination, and it comprises main shell 20 and bottom closure element 30, and wherein main shell is unlimited on a side 21.In following text, the element of accurate same structure will be provided with identical reference number.
In figure 2b, in its side 45, the shell extension part 40 of all opening wide on 46 is fastened in the open end side 21 of main shell 20, and wherein an open end side 45 of shell extension part 40 is connected in the open end side 21 of main shell 20.Bottom closure element 30 is assembled in the remaining open end side 46 of shell extension part 40 again.
Fig. 2 a and 2b provides the view seeing corresponding cable termination inside from top, solid insulating layer 50 thus, such as casting resin is visible, in described solid insulating layer, wherein made the three-phase electricity joint 27,28 and 29 for being connected on switchgear assembly.
Described figure also show main shell 20 and is equipped with high voltage recognition unit 23,24,25 (also see Fig. 5 a, 5b).Therefore, main shell 20 has three prefabricated openings, for these high voltage recognition units 23,24 of assembling, and the object of 25.
Shell extension part 40 is assembled with explosion disk 41, and is provided with joint 42, and it can be used for optionally blanketing gas and/or packaging density transducer.
First flange 26 is assemblied in the lower end of main shell 20, and the second flange 44 (see Fig. 3 b) is assemblied in the upper end of shell extension part 40, and the 3rd flange 43 is assemblied in the lower end of shell extension part 40.Flange makes main shell 20 be connected by screw in shell extension part 40, and shell extension part 40 is connected by screw on bottom closure member 30 and becomes more easy.
Except already mentioned element, the end view of the cable termination shown in Fig. 3 a with 3b shows the first and second cables and is connected end 55 and 56, it is positioned at the inside of shell 20 and shell extension part 40 when installing high-voltage switch device assembly, and be connected to the cable end piece 51 be associated, 52 and 53, on 54 (see Fig. 4 a, 4b).Cable connects end 55,56 respectively to the cable end piece 51,52 and 53 be associated accordingly, and this connection on 54 can be performed by switchgear assembly manufacturer as before, or just performs in the erecting bed of switchgear assembly.
In this illustration, the 3rd cable connects end and is positioned at after the first cable connection end 55, and therefore described 3rd cable connects end is sightless.Compare with Fig. 3 a, the shell extension part 40 be inserted between main shell 20 and bottom closure element 30 is obviously visible in fig 3b.
Fig. 5 a and 5b shows the plane graph of the cable termination of looking from the direction of bottom closure element 30.This plane graph difference is only the additional member (Fig. 5 b) displayed from the side surface of shell extension part, and specifically explosion disk 41 and joint 42, explosion disk is compared with Fig. 5 a and additionally provided.
Bottom closure element 30 presents the shape of the reuleaux triangle of sphering, three access portal 31 wherein in bottom closure element 30,32 and 33 through arranging, make in all cases, distance between the periphery and the periphery of reuleaux triangle of corresponding access portal 31,32 or 33 is at least arranged in the region of of three rounded corners.The minimum range 36 between the periphery and the periphery 35 of reuleaux triangle of access portal 31 is depicted in fig 5 a by example.
According to the shape of the reuleaux triangle of bottom closure element 30, towards the cross section of the openend of the main shell 20 of bottom closure element 30, and towards the cross section of the openend of the shell extension part 40 of bottom closure element 30, all there is this shape.But find out as clear from Fig. 2 a and 2b, main shell 20 becomes cylindrical towards top-direction.

Claims (11)

1., for assembling an equipment that is single-phase or threephase cable terminal, wherein said cable termination is for being connected to high-voltage cable by switchgear assembly, and described equipment comprises
At least one main shell (20), it is at least unlimited in side, and has one or three cable be positioned at wherein and connect end (55,56), goes up mutually for of being connected to described high-voltage cable in all cases,
At least one shell extension part (40), it is all unlimited in both sides, and is fastened on the openend of described main shell (20),
At least one bottom closure element (30), it is optionally fastened on the openend of described main shell (20) or described shell extension part (40), and have and be manufactured in one of them or three access portal (31,32,33).
2. equipment according to claim 1, is characterized in that, in all cases, described main shell (20) with described shell extension part (40) is provided for the peripheral flange (26 that screw is connected object; 43,44).
3. equipment according to claim 1 and 2, it is characterized in that, for three-phase design, at least one bottom closure element (30) described has the shape of the reuleaux triangle of sphering, wherein said three access portal (31, 32, 33) through arranging, make in all cases, in described access portal (31, 32, 33) distance between the periphery (35) of periphery and described reuleaux triangle is at least arranged in the region of of three rounded corners, and therefore the cross section of the openend of at least described main shell (20) and described shell extension part (40) has this shape equally.
4. equipment according to claim 1, is characterized in that, described main shell (20) has at least one opening in side surface, for the object of assembling high voltage recognition unit (23,24,25).
5. equipment according to claim 1, it is characterized in that, described switchgear assembly is gas isolated switchgear assembly, and described shell extension part (40) or described main shell (20) have at least one opening in side surface, fill the object of joint and/or density sensor for assembling gas.
6. equipment according to claim 1, is characterized in that, described main shell (20) or described shell extension part (40) have the opening for assembling Electric arc monitoring unit in side surface.
7. equipment according to claim 1, is characterized in that, described main shell (20) or described shell extension part (40) have the opening for assembling explosion disk (41) in side surface.
8. equipment according to claim 1, is characterized in that, provides other shell extension part.
9. equipment according to claim 1, it is characterized in that, described main shell (20) and described shell extension part (40) all can have at least two different width, and described bottom closure element correspondingly can have at least two zone cross-sectional of different size.
10. equipment according to claim 1, it is characterized in that, described main shell (20) and described shell extension part (40) have the shape increasing size on the direction towards described bottom closure element (30), and except be fastened on described main shell openend on bottom closure element (30) except, described equipment also comprises another bottom closure element, and it matches with the openend of described shell extension part in its size.
11. equipments according to arbitrary claim of aforementioned claim 9 and 10, it is characterized in that, the diameter of the access portal at least one in described bottom closure element is different from the diameter of the access portal in other bottom closure element.
CN201520233123.XU 2014-04-17 2015-04-17 A equip for assembling single -phase or three -phase cable termination Active CN204793979U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202014003281.5 2014-04-17
DE201420003281 DE202014003281U1 (en) 2014-04-17 2014-04-17 Kit for cable terminations for connecting a switchgear to a high voltage cable

Publications (1)

Publication Number Publication Date
CN204793979U true CN204793979U (en) 2015-11-18

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Application Number Title Priority Date Filing Date
CN201520233123.XU Active CN204793979U (en) 2014-04-17 2015-04-17 A equip for assembling single -phase or three -phase cable termination

Country Status (4)

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CN (1) CN204793979U (en)
DE (1) DE202014003281U1 (en)
FR (1) FR3020189B3 (en)
RU (1) RU162265U1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014005301U1 (en) * 2014-07-01 2014-07-17 Abb Technology Ag Cable termination for connecting a switchgear to a high voltage cable
EP4191809A1 (en) 2021-12-03 2023-06-07 Hitachi Energy Switzerland AG Cable module, gas-insulated device, and method for manufacturing cable module

Also Published As

Publication number Publication date
FR3020189A3 (en) 2015-10-23
RU162265U1 (en) 2016-06-10
FR3020189B3 (en) 2016-05-27
DE202014003281U1 (en) 2014-06-10

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
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Effective date of registration: 20180619

Address after: Baden, Switzerland

Patentee after: ABB Switzerland Co.,Ltd.

Address before: Zurich

Patentee before: ABB TECHNOLOGY Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210603

Address after: Baden, Switzerland

Patentee after: ABB grid Switzerland AG

Address before: Baden, Switzerland

Patentee before: ABB Switzerland Co.,Ltd.

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: Swiss Baden

Patentee after: Hitachi energy Switzerland AG

Address before: Swiss Baden

Patentee before: ABB grid Switzerland AG

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20240102

Address after: Zurich, SUI

Patentee after: Hitachi Energy Co.,Ltd.

Address before: Swiss Baden

Patentee before: Hitachi energy Switzerland AG