US3155787A

US3155787A - High voltage switch arrangement for insulated conductors

Info

Publication number: US3155787A
Application number: US197737A
Authority: US
Inventors: Imhof Alfred
Original assignee: MOSER GLASER TRANSFORMATOREN A
Current assignee: MOSER GLASER TRANSFORMATOREN A; MOSER-GLASER TRANSFORMATOREN AG
Priority date: 1961-05-30
Filing date: 1962-05-25
Publication date: 1964-11-03
Anticipated expiration: 1981-11-03
Also published as: DE1198905B; CH444255A; AT245664B

Description

A. IMHOF Nov. 3, 1964 HIGH VOLTAGE SWITCH ARRANGEMENT FOR INSULATED CONDUCTORS 3 Sheets-Sheet 1 Filed May 25, 1962 INVENTOR. 145/1786?! //'h/$a/ Nov. 3, 1964 A. IMHOF 3,

HIGH VOLTAGE SWITCH ARRANGEMENT FOR INSULATED CONDUCTORS Filed May 25, 1962 3 Sheets-Sheet 2 7-/ 2a &:

NOV. 3, 1964 [Ml-[OF 3,155,787

HIGH VOLTAGE SWITCH ARRANGEMENT FOR INSULATED CONDUCTORS Filed May 25, 1962 3 Sheets-Sheet 5 INVENTOR.

United States Patent "ice 3,155,787 HllGH VQLTAGE SWETQH ARRAIQGEMEN'E EFGR KNSULATED CGNDUQTGEE Alfred l mhoi', Zurich, witzerland, assi nor to Meson Glaser Transiormatoren AG, Muttenz, near Basel, witzerland Filed May 25, 1962, Ser. No, 197,737 Qlairns priority, application Switzerland, lV-lay 3t 1961, sass/s1 2i) Claims. (Cl. ace -es} The present invention concerns a high voltage switch arrangement for indoor and outdoor installations, and more particularly a switch of this type which is suitable for being used as a bus bar disconnecting switch as Well as a switch for disconnecting or connecting branch lines from and to bus bars. However, if the switch contacts are constructed in a special manner known to the art the switch according to the invention may also be used for switching under load.

It is one of the objects of this invention to provide for a high voltage switch of the type set forth which requires comparatively very little space in direction transverse of the switching movement so that in multi-phase installations the conductors assigned to the difierent phases can be arranged at very small spacing from each other.

It is a further object of the invention to provide for a switch as set forth which is specifically adapted for being installed in fully insulated high voltage lines. Among these are for instance insulated conductors known by the trade name Duresca-Busbars. However, the switch according to the invention is to be equally adapted for being installed in other fully insulated lines as for instance cables, rigid conductors with oil paper insulation, gasinsulated lines, etc.

It is still another object of the invention to provide for a switch as mentioned above which is capable of various modifications and adaptations, particularly for being used in multiple arrangements in installations comprising a plurality of phase lines.

With above objects in view the invention provides basically for a connecting and disconnecting arrangement for insulated high voltage lines, comprising, in combination, at least one insulated conductor means having an insulated main portion having an axis and an insulated angular end portion having a first insulated portion and a second insulated portion extendingtransversely of each other, said second insulated portion having an end portion including a contact face projecting therefrom said first insulated portion having a common axis with said main portion of said conductor means and being conductively connected therewith by an uninsulated intermediate portion permitting said angular end portion to be turned relative to said main portion about said common axis between at least two angularly spaced positions in at least one of which said contact face is adapted to engage another conductor; actuating means for turning said angular end portion between said angularly spaced positions; and coupling means surrounding said intermediate portion and the adjoining parts or" said main and end portions of said conductor means and permitting said angular end portion to be turned relative to said main portion.

The novel features which are considered as characteristic for t e invention are set forth in particular in the Patented Nov. 3, E964.-

s Lard appended claims. The invention itself, however, both as to its construction and its method of operation together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings, in which:

FIG. 1 is a perspective diagrammatic view of one embodiment of the invention, the switch being shown in closed position;

FIG. la illustrates diagrammatically only the movable switch members of the embodiment of FIG. 1 in open position;

PEG. 2 is a perspective diagrammatic view of a threephase switch arrangement according to the invention in which the busbars may be connected with and disconnected from each other and also may be connected with and disconnected from branch lines;

FIG. 3 is a diagrammatic end view of a switch arrangement according to the invention by which a busbar may be connected with and disconnected from a branch line and a ground connection;

FIG. 4 is a similar diagrammatic end view of an embodiment of the invention in which two parallel busbars may be connected with and disconnected from each other and also may be connected with or disconnected from two different branch lines;

FIG. 5 is a diagrammatic axial section of a coupling arrangement forming part of the arrangement accord ing to the invention;

PEG. 6 illustrates in a similar manner a modification of the arrangement according to FIG. 5;

FIG. 7 illustrates in the same manner still another modification of the arrangement of FIG. 5;

FIG. 8 is a diagrammatic sectional elevation of a switch arrangement according to the invention including a metal housing surrounding the actual switch means, the section being taken along line VIII-VIII of FIG. 10;

FIG. 9 is a corresponding diagrammatic longitudinal section of the arrangement of FIG. 8, the section being taken along line lX-IX of FIG. 10; and

FIG. 10 is .a diagrammatic plan view of the same arrangement viewed in the direction of arrow XX in FIG. 9.

Referring now to FIG. 1, the basic form of the switch arrangement according to the invention is a fully insulated busbar or other conductor means composed of a main portion 1 having an axis and an end portion of angular form having a straight portion 3 coaxial with the main portion li, a second portion 3 extending transversely of the portion 3. The portion 3 has an end including a contact face or contact member 5 projecting therefrom. The busbar or conductor further comprises an intermediate portion between the portions 1 and 3 which not insulated itself but is so constructed as to permit the

angular portion

3, 3 to be turned about the common axis of the portions 1 and 3' in a bearing 4. The above mentioned intermediate portion not visible in FIG. 1 is surrounded by a coupling 2 which also surrounds the adjoining ends of the portions l and 3' and also permits the turning movement of the portion 3, 3' relative to the portion 1. In this manner the portion 3, 3' is movable between at least two angular positions in at least one of which the contact member 5 is adapted to engage another conductor.

3,1 save? I all In a first modification of the basic switch type according to the invention two switch arrangements as described above are combined with each other as illustrated by FlG. 1. The second switch comprises a main busbar portion l, a coupling 2', an angular portion 3, 3' also supported in a bearing 4 and having at its outer end a contact face or contact member 5. Preferably the portions l and 3 of the first switch are coaxial with the members i. and 3 of the second switch and so spaced from each other in axial direction that in the illustrated position of the portions 3 of the two switches the contact members 5 and 5' engage each other. In this position the busbar or conductor portions it and it are conductively conn cted with each other.

in order to disconnect these conductors at least one of the portions 3, 3' is to be turned about the above mentioned axis. FIG. la illustrates a condition in which one portion 3, 3' is turned in counter-clockwise direction while the

other portion

3, 3 is turned in the opposite direction as indicated by the arrows so as to separate the contact members 5, 5 from each other. Conventional actuating means are provided as indicated diagrammatically at A for moving the

portions

3, 3 in the manner described above. The actuating means are not shown in detail in the drawings of this application in order not to encumber he illustration of the actual invention and because the actuating means are entirely convent onal. As indicated in FIG. 1a, the actuating means A may also serve to move an insulating shield T between the separated contact member 5, 5 when the latter are separated from each other. The actuating means A may be operated by compressed air or by oil-hydraulic apparatus and suitable lever and linkage systems.

While in the drawings the angular end portions 3, 3' are illustrated each as one unit i.e. as an angularly curved or bent busbar, it should be understood that at least one of the portions 3, 3', or preferably both of them, may advantageously consist of straight lead-through bushings of conventional type assembled in such a manner that the bushing constituting the portion 3 extends transversely of the portion 3' or of the second bushing constituting that portion.

As a rule fully insulated busbars or conductors as for instance cables are provided with an outer layer or slrin which is connected to ground. if such material is used for the

conductor portions

1 and 3, 33 then the grounded layer or skin should be removed from the portions 3 so that the potential difference between the bare contact faces or contact members 5, 5 and ground extends over the entire length of the portions 3.

In modified forms of the invention the basic switch arrangement illustrated by FIGS. 1 and to may be used advantageously not only for connecting and disconnecting two substantially coaxial busbars but also for connecting one or the other of these busbars to, or to disconnect them from branch lines extending transversely from the busbars. In certain cases such a branch line may be a ground connection. Such modified embodiments are illustrated by 5183. 2l0.

FIG. 2 illustrates a switch arrangement according to the invention installed within a triple or three-phase bu bar system and adapted also to connect each of these busbars to a branch line or to disconnect it therefrom. According to FIG. 2 there are three parallel main portions Zia, lb and 1c of one set of busbars. The corresponding set of second busbars extending substantially coaxially with the busbars 1a, lb and 1c are not shown at tit opposite end of the arrangement. Couplings 2a, 2b and 2c connect the busbar ends la, 31b and 1c, respectively, with the corresponding turnable angular end portions s, 7, 8, respectively. The corresponding turnable angular end portions of the second set of switches are indicated at 6a, 7a and tla. By means of actuating means A shown only diagrammatically the various angular end portions 6, 6a, '7, 7a, 8, 8a may be turned individually or jointly between various angular positions relative to each other. Evidently they may be moved into positions in which engagement is produced between the contact members do and do of each of the members 6 and do, and and 7a, and 8 and be, respectively. Three branch lines l2, l3 and which may be insulated or not insulated and which are supported by non-insulated or insulated supports l2, l3 and M, respectively, are shown as extending transversely of the above described busbar system. The branch lines 12, i5 and M terminate in contact members 12a, 23a and Ma, respectively. These last mentioned contact members are so positioned that upon turning the members (a, do, '7, Qa, 3, be individually or jointly into the positions illustrated in FIG. 2 the contact members 5a and/ or 5a will engage the respective contact members 32a, 13a and 14a, respectively. In this manner th busbar system is connected with the

branch lines

12, 113 and 14. By moving the members 6, 6a, 1, 7a, 8, 3a in opposite direction the branch lines 12, i3 and id may be disconnected from the busbar system.

PEG. 3 illustrates by way of example for one switch according to the invention a modification in which the switch portion corresponding to the portion 3 of FIG. 1 is turnable in two opposite directions as indicated by the arrows so that in the position thereof shown in full lines the conact member 5a may be in engagement with another sirn' switch member, while upon being turned in clockwise direction it is capable of engaging the Contact member 17:: of a branch line 37 supported by a support Jib. When turned in opposite direction the member 15 would bring its contact member 5a into engagement with a ground connection H6. 4 illustrates a further modification or" the invention in which case two switch members 19 and fill, both corresponding to a portion 3 of the arrangement according to FIG. 1, constitute the respective ends or two busbars extending parallel wi h each other and spaced from each other a predetermined distance substantially corresponding to the radial lengths or" the members 19 and 2%. When the switch members and are in the positions shown in full lines the respective contact members 5a and 5b are in engagement with each other so that the two busbars are in conductive connection. However, the spacing between the busbars may be chosen so that in this position the contact members 5:: and 5b are not in engagement but in this position the two busbars are disconnected from each other. On the other hand, in the first described case the members 19 and may be moved through a comparatively small angle from that position so that the contact members 5:: and 5b are separated from each other for disconnecting the two busbars. if there are provided two branch lines 21 and 222 at opposite sides of the switch arrangement, the line 21 terminating in contact members 21a and Zia, and the line 22 terminating in

contact members

22a and 22a, in suitable positions relative to the switch members il and 23, then the switch members and 2e can be turned jointly or separately into positions in which the contact member 5a either engages the contact member 21a or the contact member n and in which the contact member 5!) engages either the contact member 2.1a or the contact memher 2%. in this manner each of the busbars may also be cor iected selectively with either one of the branch lines 2.1 and 22. in addition at least one ground connection 23 may be provided in such a position that by further turning of the respective switch cg. member the busbar associated with member 2b is connected with ground by engagement of the contact member 5a with the ground contact 23.

it should be understood that the arrangement according to FIG. 4 could likewise be incorporated in a system according to FIG. 2 in which case the arrangement of PEG. 4 is duplicated in such a manner that a third busbar line extends coaxially with the busbar associated with switch member 19 and a fourth busbar extends coaxially with the busbar associated with member In this case also the coaxial first and third busbars as well as the coaxial second and fourth busbars can be connected with each other whenever desired. In an arrangement as just described the actuating means, not shown in FIG. 4, may be constructed in such a manner that any one of th switch arms 19, 2t) and the other corresponding switch arms of the arrangement are moved jointly or individually so that a great number of various line connections can be established as may be desired. It will be understood that none of the conventional high voltage switch arrangements offers the advantages and the versatility of the arrangement according to the invention. -t can be seen that particularly in a three-phase arrangement according to FIG. 2 a single disconnecting and con ecting switch arrangement replaces two separate switch arrangements conventionally used in high voltage line systems up to now. Hereby a very considerable saving of space requirements is obtained. On the basis of this invention the width of the space occupied by the various busbars or branch lines is not predetermined any more by the great number of switching but only by the overall dimensions of the single switch arrangement according to the invention. Obviously, the cost of a high voltage line switching arrangement for the purposes set forth is greatly reduced by the invention. Practical experience has shown that high voltage installations based on the switching arrangement according to the invention require only to 35% of the space required by conventional installations. In addition, arrangements according to the invention are substantially safe against contamination by dust, easy to e inspected and maintained, and highly versatile.

An important element of the switch arrangement according to the invention is the coupling device 2 or 2 referred to in describing PEG. 1, and the structure of the intermediate portion conductively connecting the busbar portion l with the end portion 3'.

Several examples of these components are illustrated by FIGS. 57.

FIG. 5 illustrates two ends of fully insulated conductor portions 2 and 25 of which 24 may be the end of a busbar main portion l and 25 may be the end of the portion 3' as illustrated in FIG. 1. Both portions are coaxial with each other. Both conductor portions are provided in a conventional manner with means for providing a desired dielectric gradient ex by means of condenser layers inserted in the insulation. Between the ends of the insulations of the portions 24 and 25 is an intermediate portion ZS, 29 which will be described further below. The intermediate portion as well as the insulated ends of the portions and 25 immediately adjoining the intermediate portion are surrounded by an insulating cylinder 26 which is likewise provided with means for providing a desired dielectric gradient so that nowhere a substantial potential difference between the insulating cylinder and the ends of the high voltage conductors can exist.

The intermediate portion mentioned above must be so constructed that it permits a turning movement or" the portion 25' relative to the portion 24. Therefore, the intermediate portion may be constructed as a sort of pin and socket connection, the pin end 28 being inserted into the socket end he socket end may be split into ends resiliently engaging a corresponding undercut or groove in a portion of the pin 23 whereby the two conductors 2d and 25 are continuously held in conductive connection and are prevented from moving a; art in axial direction. lowever, instead of using a pin and socket connection the intermediate portion may also be corstructed so as to be twistable for which purpose it may consist of one or more flat strips of conductive 5675i or of a piece of cable or cable strands. the 655 3 that the conductors and 25 consist of a metal tubing containing a stranded copper cable, then the portions 24 and 25 may be constructed as a continuous conductor 6 of this type, the metal tubings being se arated in the neighborhood of intermediate portion and the stranded copper cable constituting in itself a twistable intermediate portion for the purposes or" this invention.

For various reasons it is advisable to enclose the entire coupling arrangement i.e. the insulating cylinder 26 and the adjoining surfaces of the portions and 25 with a preferably elastic cover which may be made of rubber or may be constructed as a metal bellows. In this manner the conductive joint at 2%, 29 is also protected against co a -in'iion by dust. advantageously the empty space within the cylindrical insulating bushing 26 may be filled with an insulating oil in which case the dimensions of this coupling arrangement could be reduced and an even greater protection against humidity is obtained. Of course, in t case oil seals of conventional type should be incorporated in this arrangement.

In the modified form of the coupling device according to two coaxial busbar or

conductor portions

31 and 32 are shown which are both fully insulated, the insulation of each of these portions being tapered toward the inte ediate portion. A metallic or in any case conductive cylindrical bus ing 33 surrounds the intermediate portion and the adjoining tapered ends of the conductor portions and 32 and engages at its ends the grounded outer layer of the

portions

31 and 32 so as to prevent an interruption of the ground connection at the point of the coupling. The interior of the cylindrical housing 33 is filled with a fluid of sufficient dielectric strength e.g. with a mineral oil, liquid chlorodiphenyl, silicon oil, sulfur hexafiuoroide, etc. For still further increasing the dielectric stren th of the arrangement it is advisable to insert cylindrical insulating shields 35'. An annular seal 36 of conventional ype prevents the L from escaping along the surface of the turnable portion 31.

The modification according to FIG. 7 is essentially constructed in the same manner as the arrangement according to H6. 6, except for the fact that an insulating body 38 of solid dielectric material eg. a casting resin is placed into the empty space inside the bushing or housing 33 so that the amount of fluid dielectric L can be reduced considerably.

In the case of outdoor installations it is advisable to protect the fully insulated high voltage busbars or conductors by metal tubing or weather proof synthetic covering aloru the grounded portion thereof while the turnable end portions may be protected by ceramic or equivalent means.

While the examples according to FIGS. 1 and 4 are shown substantially as they would appear in an outdoor installation, it is advisable for certain purposes and conditions to enclose the entire switch arrangement by a metal housing which may be filled with air or also with a fluid havin a greater dielectric strength as for instance gases at elevated pressure, gases having a high specific dielectric strength, oil, chlorodiphenyl, fluorocarbon, silicone oil, etc.

By way of example an embodiment of this type is illustrated diagrammatically by FIGS. l0. A metal housing 48 is shown empty but may be filled with one of the media mentioned above and is provided preferably with a transparent lid 49 which may be of glass so that at all times the positions of the movable switch members can be observed from the outside. A metal screen or mesh 5d may be provided underneath the lid 4-9 in order to prevent inadvertent touching of the current carrying portions of the switch arrangement. The members 3?, ll and 42, 43, are the turnable end portions of a three-phase switch arrangement and correspond to the portions 3 of FIG. 1. Branch lines 4-5, 46 and 47 are inintroduced from one side into the housing and terminate in contact members adapted to be engaged by the contact faces at the ends of the above mentioned turnable portions 39-44, respectively. The turnable portions 39 are supported in bearings 51 and the above described cou pling members are designated by 52. The last mena tinned coupling members may be located outside the housing ill. However, in certain cases it is advisable to have the housing 43 extend as indicated grammatically at 58 so that the coupling members are also located Within the insulating medium filling the housing. The actuating means A which operate as described above are indicated diagrammatically in PEG. 8. When the coupling members 52 are located inside the housing as just described than it is necessary to introduce the bushar or conductor members case. and 652 623 in fully insulated condition through the wall of the hou ng all, or conventional lead-through bushings must be used.

it should be noted that the spacing between the three turnable switch member groups of a three-phase'system and the respectively associated conductor can be reduced to about 4-0 to 70% of the usually required if for the purpose of safety in operation insulating shields are arranged between the switch sections assigned to different phases.

It will be understood that each of the elements described above or two or more together, may also a useful application in other types of high voltage switch arrangements differing from the types described above.

While the invention been illustrated and described as embodied in high voltage switch arrangement with turnable conductor members, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any Way from the spirit of the present invention.

Without further analysis the foregoing will so fully reveal the gist of the present invention that others can by applying current knowledge readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention and, therefore, such adaptations should and are intended to be comprehended within the meaning and rave of equivalence of the following claims.

What is claimed and desired to be secured by Letter Patent is:

l. A connecting and disconnecting arrangement for insulated high voltage lines, comp-rising, in combination, at least one insulated conductor means having an insulated main portion having an axis and an insulated angular end portion having a first insulated portion and a second insulated portion extendiwg transversely of each other, said second insulated portion having an end portion including a contact face projecting therefrom, said first insulated portion having a common axis with said main portion of said conductor means and being conductively connected therewith by an unin-sulated intermediate portion permitting said angular end portion to be turned relative to said main portion about said common axis between at least two angularly spaced positions in at least one of which said contact face is adapted to engage another condoctor; actuating means for turning said angular portion between said angularly spaced positions; and cougiling means surrounding said intermediate portion adjoining parts of said main and end portions of said cor.- ductor means and permitting said angular end portion to be turned relative to said main portion.

2. A connecting and disconnecting arrangement for insulated high voltage lines, comprising, in combination, a first and a second insulated conductor means having each an insulated portion having axis and an insulated angular end portion having a first insulated portion and a second insulated portion extending transversely of each other, said second insulated portion having an end portion including a contact face projecting therefrom, said first insulated portions of said angular end portions having a common axis with said main portions of both said conductor means and each being conductively connected with said main portion of the respective conductor means by an uninsulated intermediate portion permitting the individual angular end portion to be turned relative to the respective main portion about said common axis between at least two angularly spaced positions in at least one of which said contact face of said end portion of said first conductor means is adapted to engage said contact face of said end portion of said second conductor means; actuating means for turning said angular end portions between said angularly space positions; and a first and a second coupling means surrounding respectively said intermediate portion and the adjoining parts of said main and end portions of said first and second conductor ctively, and permitting the individual angular end portion to be turned relative to the respective main portion.

3. A connecting and disconnecting arrangement for insulated high voltage lines, comprising, in combination, at least one insulated conductor means having an insulated portion having an axis and including a contact face projecting therefrom; at least one insulated angular connector means having a first insulated portion and a second insulated portion extending transversely of each other, said first and second insulated portions having each an end portion including first and second contact faces, respectively, projecting therefrom, said first portion having a common axis with said end portion of said conductor means, and said connector means being turnable relative to said conductor means about said common axis be twcen at least two angularly spaced positions in at least one of which said second contact face of said second portion of said connector means is adapted to engage another conductor; actuating means for turning said connector means be ween said angnl arly spaced positions; and con means for maintaining said conductor and connector means in a relative position in which said contact face of said conductor means and said first contact face of said first portion of said connector means are in conductive engagement in any position of said connector means relative to said conductor means.

A connecting and disconnecting arrangement for insulated high voltage lines, comprising, in combination, a first and a second intrlated conductor means having each insulated end portion having an axis and including a contact face projecting therefrom, said end portions being axially soaced from each other a predetermined distance; a first and a second insulated angular connector means each having a first insulated portion and a second insulated portion extending transversely of each other, first and second insulated portions having each an end portion including first and second contact faces, respectively, projecting therefrom, said first portion of said first connector means having a common axis with said end portion of said first conductor means and said first portion of said second connector means having a common axis with said end portion of said second conductor means, and said first and second connector means being turnable relative to said first and second conductor means, respectively, about the respective common axis thereof between at least two angularly spaced positions in one of which said second contact face of said second portion of one of s d connector means is adapted to engage said second co ct face of said second portion of the other connector means; actuating means for turning said connector means between said angularly spaced positions; and

a first and a second coupling means for maintaining said first co: Zuctor and connector means and said second conductor co nector means, respectively, in a relative position in whi b said contact face of said first and second conductor means said first contact face of said first portion of said first second connector means, respectively, are in conductive engagement in any position of said first and second connector means relative to said first and second conductor means.

5. A connecting and disconnecting arrangement for insulated high voltage lines, comprising, in combination, a first and a second insulated conductor means having each an insulated end portionhaving an axis and including a contact face projecting therefrom, said end portions being axially spaced from each other a predetermined dis tance, and at least one third conductor means having an end portion including a contact member located in a plane transverse of said axis and at a predetermined distance from said axis; a first and a second insulated angular connector means each having a first insulated portion and a second insulated portion extending tnansversely of each other, said first and second insulated portions having each an end portion including first and second contact faces, respectively, projecting therefrom, said first portion of said first connector means having a common axis with said end portion of said first conductor means and said first portion of said second connector means having a common axis with said end portion of said second conductor means, and said first and second connector means being turnable relative to said first and second conductor means, respectively, about the respective common axis thereof between a plurality of angularly spaced positions in one of which said second contact face of said second portion of one of said connector means is adapted to engage said second contact face of said second portion of the other connector means, While in another one of said positions said second contact face of said second portion of at least one of said connector means is adapted to engage said contact member of said third conductor means; actuating means for turning said connector means between said angularly spaced positions; and a first and a second coupling means for maintaining said first conductor and connector means and said second conductor and connector means, respectively, in a relative position in which said contact face of said first and second conductor means and said first contact face of said first portion of said first and second connector means, respectively, are in conductive engagement in any position of said first and second connector means relative to said first and second conductor means. 6. An arrangement as claimed in claim 4, wherein said actuating means are adapted to turn simultaneously said first and second connector means in opposite directions. 7. An arrangement as claimed in claim 3, including a second conductor means having an end contact face and a grounded contact member, said connector means being turnable between a plurality of angularly spaced positions in one of which said second contact face of said second portion of said connector means is adapted to engage said end contact face of said second conductor means, while in another position it is adapted to engage said grounded contact member.

8. A connecting and disconnecting arrangement for insulated high voltage lines, comprising, in combination, a first and a second insulated conductor means having each an insulated end portion having an axis and including a contact face projecting therefrom, said end portions extending substantially parallel with each other and being spaced from each other a predetermined distance; a first and a second insulated angular connector means each having a first insulated portion and. a second insulated portion extending transversely of each other, said first and second insulated portions having each an end portion including first and second contact faces, respectively, projecting therefrom, said first portion of said first connector means having a common axis with said end portion of said first conductor means and said first portion of said econd connector means having a common axis with said end portion of said second conductor means, and said first i and second connector means being turnable relative to said first and second conductor means, respectively, about the respective common axis thereof between at least two on gularly spaced positions in one of which said second contact face of said second portion of one of said connector means is adapted to engase said second contact face of said second portion of the other connector means; actuating means for turning said connector means between said angularly spaced positions; and a first and a second coupling means for maintaining said first conductor and connector means and said second conductor and connector means, respectively, in a relative position in which said contact face of said first and second conductor means and said first contact face of said first portion of said first and second connector means, respectively, are in conductive engagement in any position of said first and second connector means relative to said first and second conductor means.

9. A connecting and disconnecting arrangement for insulated high voltage lines, comprising, in combination, a first and a second insulated conductor means having each an insulated end portion having an axis an including a contact face projecting therefrom, said end portions extending substantially parallel with each other and being spaced from each other a predetermined distance, and at least one third conductor means having an end portion including a contact member located in a plane transverse of said axis and at a predetermined distance from said axis; a first and a second insulated angular connector means each having a first insulated portion and a second insulated portion extending transversely of each one said first and second insulated portions having each an end portion including first and second contact faces, respectively, projecting therefrom, said first portion of said first connector means having a common axis with said end portion of said first conductor means and said first portion or" said second connector means having a common axis with said end portion of said second conductor means, and said first and second connector means being turnabie relative to said first and second conductor means, respectively, about the respective common axis thereof between a plurality of angularly spaced positions in one of which said second contact face of said second portion of one of said connector means is adapted to engage said second contact face of said second portion of the other connector means, while in another one of said positions said second contact face of said second portion of at least one of said connecter means is adapted to engage said contact member of said third conductor means; actuating means for turning said connector means between said angularly spaced positions; and a first and a second coupling means for maintaining said first conductor and connector means and said second conductor and connector means, respectively, in a relative position which said contact face of said first and second conductor means and said first contact face of said first portion of said first and second connector means, respectively, are in conductive engagement in any position of said first and second connector means relative to said first and second conductor means.

10. An arrangement as claimed in claim 9, including a grounded contact member, at least one of said connector means being turnabie into a position wherein its end contact face is adapted to engage said grounded contact member.

11. A connecting and disconnecting arrangement for insulated high voltage lines, comprising, in combination, four insulated conductor means each having an insulated end portion having an axis and including a contact face projecting therefrom, said end portions of a first and second one of said conductor means being axially spaced from each other a predetermined distance, and said end portions of a third and. a fourth one of said conductor means being axially spaced from each other a predetermined distance, said end portions of said first and second conductor means extending substantially parallel with those of said third and fourth conductor means at a predetermined distance, and at least one fifth conductor means having an end portion incmding a contact member located in a rlane transverse of said axes of said end portions of said conductor means and at a predetermined distance therefrom; four insulated angular connector means each having a first insulated portion and a second insulated portion extending transversely of each other, said first and second insulated portions having each an end portion including first and second contact faces,

arcane? respectively, projecting therefrom, said first portion of a first and second one of said connector means having a common axis with said end portion of said first and second conductor means, respectively, and said first portion of a third and fourth one of said connector means having a common axis with said end portion of said third fourth conductor means, respectively, said first ant second connector means being turnable, relative to said first and second conductor means, respectively, and said third and fourth connector means being turnable relative to said third and fourth conductor means, respectively, all of said connector means being turnable about the respective axis between a plurality of angularly spaced positions, respectively, said second contact faces of said first and second connector means being adapted in one of said positions to engage each other, s id second contact faces of th d and fourth connector means being adapted in one of said positions to engage each other, said second contact faces of said first and third connector means being adapted in one of said positions to engage each other, said second contact faces of said second and fourth connector means being adapted in one of said positions to engage each other, said second contact faces of said first and second connector means being adapted in other positions to engage said contact member of said fifth conductor means, and said second contact faces of said third and fourth connector means being adapted in other positions thereof to engage said contact member of said fifth concluctor means; actuating means for turning said connectormeans between said angularly spaced positi ns; and coupling means for mainta ning said first, second, third and fourth conductor means and said first, second, third and fourth connector means, respectively, in relative positions in which said contact faces of said conductor means and said first contact faces of said first portions of said connector means, respectively, are in conductive engagement in any position of said connector means relative to said conductor means.

12. An arrangement as claimed in claim 3, wherein sm'd coupling means comprise an insulating bushing coaxially surrounding said first contact face of said connector means and said contact face said conductor means which are in engagement with each other, and also at least a part of said insulated first portion of said connector means and at least a part of said insulated end portion of said conductor means.

13. An arrangement as claimed in claim 12, wherein said insulated first portion of said connector means and said insulated end portion of said conductor means as well as said insulating bushing'are provided with means for providing a desired di lectric gradient so that no substantial potential differences exist between said in sulating bushing and said portions of said connector and conductor means.

14. An arrangement as claimed in claim 3, wherein said coupling means comprise a metallic bushing coaxially surrounding said first contact face of said connector means and said contact face of said conductor means which are in engagement with each other, and also at least a part of said insulated first portion of said connector means and at least a part of said insulated end portion of said conductor means, the outer ends of said J shing being in conductive contact with the outer skin of said insulated portions so as to be adapted to transfer grou d connection from one portion to the other provided 1 said outer skin is conductive and that said outer skin of said conductor means is grounded.

15. An arrangement as claimed in claim 4-, including a metallic housing surrounding at least part of said insulated end portions of said first and second conductor means and of said connector means, and a fluid insulating medium contained in said housing for surrounding said parts of said and second conductor means and said connector means, said fluid medium having a dielectric strength least equal to that of air.

16. An arrangement as claimed in claim 5, including a netailic housing surrounding at least part of said in sulatcd end portions of said first and second conductor a contact face projecting therefrom, said end portions eing axially spaced from each other a predetermined distancera first and a second insulated angular connector means each having a first insulated portion and a second insulated portion extending transversely of each other, said first and second insulated portions having each an end portion including first and second contact faces, respectively, projecting therefrom, said first portion of said first connector means having a common axis with said end portion of said first conductor means and said first portion of said second connector means having a common axis with said end portion 'of said second conductor means, and said first and second connector'means being turnable relative to said first and second conductor means, respectively, about the respective common axis thereof between at least two angularly spaced positions in one of which said second contact face of said second portion of one of said connector means is adapted to engage said second contact face of said second portion of the other connector means; insulating shield means arranged between said connector means associated with one phase and those associated with another phase; actuating means for turning said connector means between said angularly spaced positions; and a first and a second coupling means for maintaining said first conductor and connector means and said second conductor and connector means, respectively, in a relative position in which said contact face of So d. first and second conductor means and said first contact face of said first portion of said first and second connector means, respectively, are in conductive engagement in any position of said first and second connector means relative to said first and second conductor means.

18. An arrangement as claimed in claim 11, wherein said actuator means are constructed and arranged to turn said first and second connector means jointly between said positions thereof and said third and fourth connector means jointly between said positions thereof.

l9. An arrangement as claimed in claim 17, wherein said actuator means are constructed and arranged to turn all of said first and second connector means associated with said plurality of phases, respectively, jointly between said positions thereof.

20. An arrangement as claimed in claim 3, wherein said angular connector means comprises an angularly bent lead-through bushing having a first straight portion constituting said first insulated portion and a second straight portion constituting said second insulated portion.

No references cited.

Claims

1. A CONNECTING AND DISCONNECTING ARRANGEMENT FOR INSULATED HIGH VOLTAGE LINES, COMPRISING, IN COMBINATION, AT LEAST ONE INSULATED CONDUCTOR MEANS HAVING AN INSULATED MAIN PORTION HAVING AN AXIS AND AN INSULATED ANGULAR END PORTION HAVING A FIRST INSULATED PORTION AND A SECOND INSULATED PORTION EXTENDING TRANSVERSELY OF EACH OTHER, SAID SECOND INSULATED PORTION HAVING AN END PORTION INCLUDING A CONTACT FACE PROJECTING THEREFROM, SAID FIRST INSULATED PORTION HAVING A COMMON AXIS WITH SAID MAIN PORTION OF SAID CONDUCTOR MEANS AND BEING CONDUCTIVELY CONNECTED THEREWITH BY AN UNINSULATED INTERMEDIATE PORTION PERMITTING SAID ANGULAR END PORTION TO BE TURNED RELATIVE TO SAID MAIN PORTION ABOUT SAID COMMON AXIS BETWEEN AT LEAST TWO ANGULARLY SPACED POSITIONS IN AT LEAST ONE OF WHICH SAID CONTACT FACE IS ADAPTED TO ENGAGE ANOTHER CONDUCTOR; ACTUATING MEANS FOR TURNING SAID ANGULAR END PORTION BETWEEN SAID ANGULARLY SPACED POSITIONS; AND COUPLING MEANS SURROUNDING SAID INTERMEDIATE PORTION AND THE ADJOINING PARTS OF SAID MAIN AND END PORTIONS OF SAID CONDUCTOR MEANS AND PERMITTING SAID ANGULAR END PORTION TO BE TURNED RELATIVE TO SAID MAIN PORTION.