EP0938759A1 - High voltage assembly with separable elements - Google Patents
High voltage assembly with separable elementsInfo
- Publication number
- EP0938759A1 EP0938759A1 EP97913234A EP97913234A EP0938759A1 EP 0938759 A1 EP0938759 A1 EP 0938759A1 EP 97913234 A EP97913234 A EP 97913234A EP 97913234 A EP97913234 A EP 97913234A EP 0938759 A1 EP0938759 A1 EP 0938759A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- separable
- elements
- high voltage
- assembly
- rigid
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
Definitions
- the present invention relates, in general, to a high voltage assembly comprising separable elements and more particularly to such a high voltage assembly in which the continuity of electrical insulation between the separable elements is ensured by means of an element in insulating, elastically deformable material.
- the electrical connection is conventionally carried out by means of paired electrical contacts maintained in rigid insulating blocks, themselves arranged in metal envelopes allowing a secure mechanical assembly of the connection elements, for example at additional threading and tapping means on enclosures or a bayonet device.
- This sealing problem is particularly important when the high-voltage assembly is in a rotating system, for example the sheaths of certain X-ray radiography devices. It is then necessary to provide complex sealing means such as bellows rings to prevent leakage of oil or grease at the interface between the separable elements, in particular under the effect of temperature when the assembly is used to compensate for the variation in volume.
- the object of the present invention is therefore to produce a high-voltage assembly comprising separable elements, in which it is not necessary to use oil or grease to ensure the continuity of electrical insulation between the separable elements from the whole.
- the invention also aims to provide a high voltage assembly comprising separable elements which can be easily assembled during manufacture or installation and disassembled after use or for intervention.
- a high voltage assembly comprising at least two separable elements, each of the separable elements comprising at least one electrical contact having a transverse end face, said contacts of a separable element being electrically connected to said contact of the other of the separable elements when the separable elements are combined, in which the continuity of the electrical insulation around the contacts is achieved by means an insulating element of electrically insulating and elastically deformable material, deformed by compression, when the separable elements are connected to each other.
- the deformable insulation element ensuring the continuity of the electrical insulation is an elastically deformable joint, made of insulating material, disposed between the end transverse faces of rigid blocks of insulating material so as to surround the (or) electrical contact (s).
- the seal is deformed by compression between the end transverse faces of the rigid blocks of insulating material, to achieve continuity of electrical insulation of the high-voltage assembly, when the separable elements are combined.
- the elastically deformable joint can be made of any flexible, elastically deformable insulating material, having suitable electrical insulation characteristics and a hardness suitable for being able to be compressed between the blocks of material insulating from separable elements and being sufficiently deformed to fill perfectly, at the compressed state, the space between the rigid insulating blocks around the contacts.
- the flexible insulating joint adapts perfectly to the end transverse faces of the rigid insulating blocks and thus remedies any surface imperfections of these end transverse faces.
- the flexible, elastically deformable seal is made of a suitable elastomeric material, such as a silicone elastomer.
- the Shore A hardness of the flexible insulating material of the joint is generally between 10 and 50, preferably between 10 and 30.
- the pressure exerted by the separable elements on the flexible insulating joint must be sufficient to achieve the desired electrical insulation. Obviously, this pressure will depend on the hardness (flexibility) and the nature of the gasket material and the high operating voltage of the assembly.
- the flexible insulating joint may be a removable joint, that is to say it constitutes a separate element from the separable elements.
- this joint can also be secured to a transverse end face of a rigid insulating block, for example, by fixing using an adhesive suitable for said face.
- the end transverse faces of the rigid blocks made of insulating material for separable elements have a convex shape where the flexible joint has a biconvex shape, so that when the separable elements of the assembly meet, it forms temporarily annular wedge-shaped spaces between the flexible joint and the end transverse faces of the rigid insulating blocks of the elements, allowing air to escape from the interface between the two separable elements, until these spaces have completely disappeared when the two separable elements have reached their final coupling position and the flexible joint compressed under the effect of the pressure exerted by the rigid blocks of insulating material occupies the entire space between the blocks of insulating material of the two separable elements.
- This produces a high-voltage assembly comprising separable elements which, when these are joined together, have excellent continuity of electrical insulation.
- the convexity of the terminal transverse faces of the insulating blocks or of the flexible removable joint must be such that the wedge-shaped spaces created during the joining of the separable elements are only a few degrees to allow the air to escape and thus avoid that air is trapped at the interfaces between the separable elements and the seal, and to ensure that the insulating flexible seal leaves no air gap remaining when the separable elements are in their final meeting position.
- the convexity is such that the angle of the wedge-shaped spaces is generally between 1 and 5 °.
- a high voltage connector which comprises two separable elements.
- a first of the separable elements consists of a hollow frustoconical envelope, open at one end, of rigid insulating material, provided in its bottom wall with one or more electrical contacts, for example female contacts.
- the second separable element comprises a frustoconical block of electrically insulating, solid material, elastically deformable by compression and the front face of which is intended to abut against the bottom wall of the frustoconical envelope and comprises one or more electrical contacts, for example male contacts, intended to be connected with the female contact (s) of the first separable element.
- the angle at the top of the rigid frustoconical envelope of the first separable element is slightly greater than the angle at the top of the frustoconical insulation block of the second separable element, so that, when the two separable elements are simply nested one inside the other, that is to say without compression being exerted on the deformable insulation block of the second separable element, there is a small angular annular space, for example from 1 to 5 °, between the inner side wall of the rigid frustoconical envelope and the outer side wall of the frustoconical block of elastically deformable insulating material.
- the height of the elastically deformable insulating block is slightly greater, for example from 1 to 5 mm, than the depth of the interior volume of the hollow rigid frustoconical envelope.
- the elastically deformable insulating block when the second separable element of the high-voltage connector is fitted into the first separable element, then compressed, for example by means of a tightening nut provided on the second separable element and cooperating with an additional thread provided on the support in which is adapted the first separable element, the elastically deformable insulating block, is deformed so that the elastically deformable material completely fills the interior volume of the hollow frustoconical envelope, coming into close contact and without discontinuity with the internal walls of this envelope .
- the air is expelled and evacuated as the compression deformation of the block of elastically deformable insulating material up to that the block of elastically deformable insulating material completely fills the interior volume of the frustoconical envelope when the tightening nut is screwed into its final position.
- This ensures continuous electrical insulation, without the risk of the presence of air included and without the need to use an insulating oil or grease.
- the elastically deformable insulating block regains its initial shape and dimension.
- the insulating block of the second separable element is preferably made of a suitable elastomer, such as a silicone elastomer.
- This material generally has a Shore A hardness of between 10 and 50, preferably between 10 and 30.
- the pressure exerted on the block of elastically deformable insulating material must be such that it allows a reduction in the height of the block to the value of the depth of the internal volume of the rigid frustoconical envelope. Obviously, this additional height of the insulating block of elastically deformable material must be such that the block, when it is completely deformed by compression, completely fills the interior volume of the hollow, rigid frustoconical envelope.
- the electrical contact (s) of the second separable element are generally arranged in recesses formed in the front face of the block of elastically deformable insulating material so that these contacts do not project outside this front face of the insulating block.
- these recesses are shaped and dimensioned to receive the complementary electrical contacts of the first separable element. This avoids any risk of deterioration of the electrical contacts of the second separable element when handling the conoector.
- the electrical contacts arranged in the recesses of the insulating block of material elastically deformable are male contacts, and more preferably male contacts laterally forming a contact spring intended to be introduced into complementary female contacts carried by the bottom wall of the hollow rigid frustoconical envelope of the first separable element.
- FIG. 1 a schematic sectional view of a high voltage assembly according to the present invention with the separable elements not yet assembled
- Figure 2 - a view of the high voltage assembly of Figure 1 with the separable elements together
- FIG. 3 - a schematic view similar to that of FIG.
- Figure 4 a schematic view similar to that of Figure 1, wherein the flexible, removable seal, of insulating material, has a biconvex shape;
- Figure 5 a schematic view of an assembly for connecting a high voltage cable to a high voltage device according to the invention;
- Figure 6 a high voltage modular assembly produced according to the principles of the present invention;
- Figure 7 - a schematic view of a high voltage connector, according to another recommended embodiment of the invention, before connection of electrical contacts;
- Figure 8 - a schematic view of the high voltage connector of Figure 7, with the separable elements connected, but before compression of the block of elastically deformable insulating material;
- Figure 9 a schematic view of the high voltage connector of Figure 7, with the block of elastically deformable insulating material, deformed by compression at the end of connection;
- Figure 10 - a schematic view of part of the connector of Figure 7 showing the differences in taper of the separable elements;
- FIGS. 1 and 2 there is shown schematically an embodiment of a high voltage assembly according to the invention.
- the assembly comprises two separable elements 1a, 1b, each comprising an electrical contact 2a, 2b, fixedly held in a rigid block of insulating material 3a, 3b, and connected, as is well known, to an electrical supply conductor or different organs that must operate under high voltage.
- the separable elements of such assemblies conventionally comprise complementary metallic envelopes provided with suitable cooperating means making it possible to fix together the separable elements of the assembly.
- These metallic envelopes constitute an electrical mass schematically represented by the block 5 in FIGS. 1 and 2.
- the high voltage assembly further comprises a removable seal 6 made of material flexible, elastically deformable insulation, of annular shape, disposed between the end transverse faces of the rigid blocks of material insulating elements of the assembly and surrounding the electrical contacts 2a, 2b.
- a removable seal 6 made of material flexible, elastically deformable insulation, of annular shape, disposed between the end transverse faces of the rigid blocks of material insulating elements of the assembly and surrounding the electrical contacts 2a, 2b.
- a means of evacuating the air is provided at the interfaces between the terminal transverse faces 4a and 4b of the rigid insulation blocks of the separable elements from the assembly. high voltage and flexible insulating joint.
- this means of evacuating the air can be produced by giving the terminal transverse faces 4a and 4b of the blocks a convexity such that an annular space is formed in the form of a wedge between the terminal transverse faces. 4a, 4b of the rigid blocks and the corresponding transverse surfaces of the joint 6.
- the angle thus obtained is generally a few degrees.
- the convexity of the terminal transverse faces 4a, 4b of the rigid blocks 3a, 3b must be such that annular wedge-shaped spaces are formed, but must not be so large that it would no longer be possible to make them disappear.
- These annular spaces by compression of the flexible seal 6 when the separable elements 1a, 1b meet.
- the value of the angle ⁇ will obviously also depend on the hardness of the insulating material of the joint 6. In general, this angle ⁇ will be between 1 and 5 °.
- annular space is thus formed in the form of a wedge widening towards the periphery of the rigid blocks 3a and 3b of the separable elements between the convex terminal transverse surfaces 4a and 4b of these blocks and the transverse surfaces of the joint removable in elastically deformable insulating material of annular shape, this space reducing to finally completely disappear under the effect of the compression of the removable annular seal 6 when the separable elements are brought together in their final position.
- the air is expelled from the interfaces between the convex transverse end faces 4a and 4b of the rigid insulation blocks of the separable elements and the seal 6 and is not trapped between the terminal transverse faces of the rigid blocks of the separable elements and the transverse faces of the removable seal, for example in the event of existing defects in the end transverse faces of the rigid insulating blocks of the separable elements. Therefore, an excellent electrical insulation is achieved between the separable elements.
- FIG. 5 shows an application of the present invention to a high voltage connection assembly between a high voltage power cable and a socket of a high voltage device, such as for example a high generator. tension where the sheath of an x-ray tube.
- the high-voltage assembly comprises two separable connection elements 10a, 10b.
- the separable element 10a is fixedly connected to the casing of a high-voltage device, for example a high-voltage generator, using a metal casing of generally cylindrical shape, the end of which is located at the exterior of the high-voltage device has a thread.
- An electrical contact 12a for example a male contact, is maintained inside the cylindrical metal casing 15a by means of a rigid insulating block 13a.
- the various components of the high-voltage device are electrically isolated by means of an insulating oil filling.
- the separable connecting element 10b of the connection assembly comprises a metal casing of generally cylindrical shape, one end of which is provided with a thread intended to cooperate with the thread of the casing 15a of the element fixed to the device at high voltage.
- the other end of the casing 15b of the connection element 10b is fixed to the end of a high-voltage cable 17.
- An electrical contact 12b for example a female contact, is maintained inside the envelope 15b by means of a rigid insulating block 13b. As is well known, this contact 12b is joined to the conductor of the high-voltage cable.
- the contacts 12a and 12b are coupled to provide electrical continuity between the two elements of the connection assembly.
- annular seal made of flexible, elastically deformable insulating material is disposed between the end transverse faces 14a and 14b of the rigid insulating blocks 13a and 13b.
- the annular seal made of flexible insulating material is compressed between the transverse faces 14a and 14b of the blocks insulators 13a and 13b until the contacts 12a and 12b are joined.
- the flexible annular removable seal 16 compressed between the transverse faces 14a and 14b of the blocks 13a and 13b thus ensures excellent insulation continuity between the separable elements 10a, 10b.
- each of the elements may comprise two or more contacts held in the rigid insulating blocks.
- the removable seal made of elastically deformable insulating material will include the necessary number of passages to allow the meeting of the cooperating contacts of these separable elements.
- FIG. 6 schematically represents a modular high-voltage assembly produced according to the principles of the present invention.
- the modular assembly may comprise a first module 10, for example the secondary windings of a high-voltage generator contained in an envelope made of rigid plastic, a second module 20 consisting of a rectifying block and filtering, also contained in a rigid plastic envelope, a third module 30 constituting an output connection block, and fittings 40a, 40b of high voltage cable.
- each module is electrically connectable to each other by complementary contacts.
- each module removable seals made of elastically deformable insulating material 11, 21, 31a and 31b, which, when the modules are joined together, so as to make the electrical connection between the different modules, are compressed between adjacent modules, to achieve continuity of electrical insulation between the different modules as described above.
- a perfectly isolated high-voltage modular assembly is thus produced, simple, easy to assemble and disassemble, and which does not require the use of oil or grease between the different modules to provide electrical insulation.
- the high voltage connector recommended according to the invention comprises two separable connection elements, a female element 10 and a male element 20.
- the female element 10 is intended to be fixed to a device operating under high voltage, for example a high voltage generator or the sheath of an X-ray tube, for its supply under high voltage.
- this separable female element 10 consists essentially of a frustoconical, hollow, rigid envelope, made of electrically insulating material 1 1, for example a rigid plastic.
- This hollow frustoconical envelope comprises a bottom wall 12 and a side wall 13, open at its end 15 opposite the bottom wall 12 and delimiting an interior volume 14.
- This frustoconical casing is provided on the periphery of its open end 15 with an annular flange 16 for its connection to a wall 30, grounded electrically, of the metal casing of a high-voltage device.
- This wall 30 of the envelope of the high-voltage device is also provided with a means, for example a thread 31 intended to cooperate with a fixing nut 26 of the male connection element 20 of the connector to ensure a secure connection. separable elements of the connector.
- the side wall 13 of the rigid frustoconical envelope 1 widens from the bottom wall 12 to its open end 15 at an angle ⁇ determined relative to the axis longitudinal of the envelope.
- the male connection element 20 consists of a frustoconical block 21 of electrically insulating, elastically deformable material, encasing conductors 22 connected to a high power cable tension 25 and ending at the front face of the insulation block 21 by male electrical contacts 23 intended to be connected by plugging in with the female electrical contacts 17 of the rigid frustoconical casing 1 1.
- the male element 20 also includes a clamping nut 26 comprising a tapping cooperating with the thread 31 of the casing of the device to produce a fixed and secure connection between the separable elements of the connector. Although an arrangement with thread and nut secured by screwing has been shown, it is also possible to use any other well-known arrangement for fixing the connector elements, for example a bayonet arrangement.
- the connection part of the high voltage cable to the insulating block 21 is made of a rigid material, for example metal.
- the frustoconical block 21 may consist entirely of the electrically insulating, elastically deformable material, or may comprise a core of rigid electrically insulating material surrounded by the electrically insulating, elastically deformable material.
- the external lateral wall of the insulating block 21 widens from its front face to an annular support flange 28 ensuring the connection between the insulating block 21 and the high-voltage cable 25, at an angle ⁇ relative to the longitudinal axis of the male separable element 20.
- this angle ⁇ is smaller by a few degrees, for example 1 to 5 °, than the angle ⁇ of the hollow casing 11 of the female separable element 10, so that when the male separable element 20 is simply fitted into the female separable element 10 with the male 23 and female 17 contacts connected, the external surface of the side wall of the insulating block 21 of the male element 20 defines with the internal surface of the side wall 13 of the rigid, hollow casing 11 of the female element 10, an angular or wedge-shaped annular space 40 which widens in the direction of the open end 15 of the hollow rigid casing 11.
- the angle at the top of the side wall 13 of the hollow rigid envelope 11 is greater than the angle at the top of the side wall of the frustoconical insulation block 21. It is possible, if desired also, provide an annular seal 41 in flexible insulating material, for example in silicone elastomer between the annular flange 28 for fixing the male element 20 and the annular flange 16 of the hollow, rigid casing 11 of the female element 10. As also shown in FIG. Figure 5, in the previous position, that is to say before the complete tightening of the fixing nut
- the insulating block 21 projects externally from the rigid hollow casing 11 of a small height AZ, for example a few millimeters, preferably 1 to 5 mm.
- the height of the insulating block 21 is greater by a value Au than the depth of the interior volume 14 of the rigid hollow envelope 11.
- the fixing nut 26 when the fixing nut 26 is screwed in fully, it exerts a determined compression force on the annular flange 28 and compresses the insulating block 21.
- the insulating block 21 consists of an insulating material elastically deformable, during compression, it deforms so, when the fixing nut 28 is fully screwed, completely fill the internal volume 14 of the rigid hollow casing 1 1. Due to the angular annular space 40 existing initially between the insulating block 21 and the internal surface of the side wall 13 of the rigid hollow casing
- the air is gradually expelled to the outside as the insulating block is deformed to occupy the entire interior volume 14 of the rigid hollow casing 1 1.
- the insulating block 21 ensures continuity of the electrical insulation and avoids any risk of inclusion of air, without the need to use an insulating oil or grease.
- a ⁇ ⁇ will depend on the internal volume 14 of the rigid hollow casing 11 and on the elastic properties of the material used to form the insulating block 21.
- the insulating block 21 can be simply produced by molding an elastically deformable and electrically insulating synthetic material, for example a silicone elastomer, on the conductors and around the electrical contacts.
- the male electrical contacts 23 are housed in recesses 24 formed in the front end of the insulating block 21.
- the recesses 24 are shaped and dimensioned so as to completely contain the male contacts 23 and to receive the female contacts 17 of the female separable element 10.
- the electrical contacts of the male separable element 20 which is generally connected to the high voltage cable, are protected from any risk of deterioration when the male separable element 20 is not connected to the female separable element 10 or during the various manipulations.
- the electrical contacts could be reversed, the male separable element comprising female contacts and the female separable element comprising male contacts.
- FIG. 11 shows a recommended type of male contact 23.
- the recommended male contacts 23 provide a spring-loaded engagement in the female contacts 17 by means of conductive blades forming a spring 23 arranged, as is well known, on the lateral surface of the contact. .
- FIG. 12a shows another embodiment of a polarizing device which consists of an axial slot 19b formed at the open end of the female separable element 10 and a complementary projection 27b on the rear part of the male separable element 20.
- a polarizing device which consists of an axial slot 19b formed at the open end of the female separable element 10 and a complementary projection 27b on the rear part of the male separable element 20.
- a reverse arrangement According to the invention, a high voltage connector is thus produced. ensuring excellent electrical insulation continuity and avoiding any risk of inclusion of air which could damage the insulation continuity without the need for insulation oil or grease.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9613897A FR2755797B1 (en) | 1996-11-14 | 1996-11-14 | HIGH-VOLTAGE ASSEMBLY WITH SEPARABLE ELEMENTS |
FR9613897 | 1996-11-14 | ||
PCT/FR1997/001961 WO1998021786A1 (en) | 1996-11-14 | 1997-11-03 | High voltage assembly with separable elements |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0938759A1 true EP0938759A1 (en) | 1999-09-01 |
EP0938759B1 EP0938759B1 (en) | 2003-07-23 |
Family
ID=9497624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97913234A Expired - Lifetime EP0938759B1 (en) | 1996-11-14 | 1997-11-03 | High voltage assembly with separable elements |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0938759B1 (en) |
JP (1) | JP2001503564A (en) |
DE (1) | DE69723720T2 (en) |
FR (1) | FR2755797B1 (en) |
WO (1) | WO1998021786A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8657618B2 (en) | 2011-02-15 | 2014-02-25 | Ge Sensing And Inspection Technologies Gmbh | High-voltage connector component for a high-voltage cable, high-voltage connector, and method of manufacturing a high-voltage connector component |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000062378A1 (en) * | 1999-04-13 | 2000-10-19 | Central Japan Railway Company | Linear cable connection |
FR2817667B1 (en) * | 2000-12-01 | 2003-01-10 | Ge Med Sys Global Tech Co Llc | HIGH VOLTAGE ELECTRICAL CONNECTION DEVICE |
EP1584127A1 (en) * | 2003-01-07 | 2005-10-12 | Philips Intellectual Property & Standards GmbH | High-voltage connector |
WO2005107021A1 (en) * | 2004-04-29 | 2005-11-10 | Philips Intellectual Property & Standards Gmbh | High-voltage connector |
CN104183364B (en) | 2014-06-23 | 2016-10-05 | 上海联影医疗科技有限公司 | High tension generator transformation fuel tank |
US11862900B2 (en) | 2021-10-01 | 2024-01-02 | Teledyne Defense Electronics, Llc | Low partial discharge high voltage connector and methods |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2733123C3 (en) * | 1977-07-22 | 1982-03-11 | Rich. Seifert & Co Gmbh & Co Kg, 2070 Ahrensburg | X-ray tube |
US4296986A (en) * | 1979-06-18 | 1981-10-27 | Amp Incorporated | High voltage hermetically sealed connector |
GB8529454D0 (en) * | 1985-11-29 | 1986-01-08 | Raychem Gmbh | Cable connection |
FR2719420A1 (en) * | 1994-04-29 | 1995-11-03 | Ge Medical Syst Sa | Electrical connector for high voltage cable |
-
1996
- 1996-11-14 FR FR9613897A patent/FR2755797B1/en not_active Expired - Fee Related
-
1997
- 1997-11-03 JP JP52222698A patent/JP2001503564A/en not_active Ceased
- 1997-11-03 WO PCT/FR1997/001961 patent/WO1998021786A1/en active IP Right Grant
- 1997-11-03 EP EP97913234A patent/EP0938759B1/en not_active Expired - Lifetime
- 1997-11-03 DE DE69723720T patent/DE69723720T2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9821786A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8657618B2 (en) | 2011-02-15 | 2014-02-25 | Ge Sensing And Inspection Technologies Gmbh | High-voltage connector component for a high-voltage cable, high-voltage connector, and method of manufacturing a high-voltage connector component |
Also Published As
Publication number | Publication date |
---|---|
FR2755797B1 (en) | 1998-12-31 |
DE69723720T2 (en) | 2004-04-15 |
WO1998021786A1 (en) | 1998-05-22 |
DE69723720D1 (en) | 2003-08-28 |
FR2755797A1 (en) | 1998-05-15 |
EP0938759B1 (en) | 2003-07-23 |
JP2001503564A (en) | 2001-03-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1983004142A1 (en) | Improvements to electric connectors intended particularly to be used in a liquid medium particularly under pressure | |
FR2463526A1 (en) | CABLE CONNECTOR WITH SHEATHED METAL ARMOR | |
FR2554642A1 (en) | ELECTRICAL CONNECTOR | |
FR2769756A1 (en) | BELLOWS RING FOR HIGH VOLTAGE CONNECTOR AND HIGH VOLTAGE CONNECTOR OBTAINED | |
FR2926920A1 (en) | ELECTRICITY INSULATING DISK FOR SUPPORTING A LINEAR CONDUCTOR AND ELECTRICAL ASSEMBLY COMPRISING THE DISK. | |
EP1251617B1 (en) | Cable sealing | |
EP0938759B1 (en) | High voltage assembly with separable elements | |
EP3561978B1 (en) | Insulator for a cable end | |
EP0246947A1 (en) | Submersible electrical connector | |
EP1111748A1 (en) | Interconnection system between medium or high voltage switchgear cubicles | |
EP1577994B1 (en) | Electrical connection between high voltage switchgear cells | |
EP0763876B1 (en) | Device for blocking a cable in an explosion-proof housing | |
FR2736461A1 (en) | Sealed insulated bushing for gas-filled electrical equipment - has conic female insert of insulating material accepting an insulated conic male part with a conductor passing through its centre | |
FR2655122A1 (en) | Seal for an electrical connector, and connector which is equipped therewith | |
WO2021223935A1 (en) | Device for joining, and discharging the leakage currents from, two shroud portions for containing a pressurised gas | |
FR2621181A1 (en) | WATERPROOF ELECTRICAL CONNECTOR FOR USE IN LIQUID MEDIA | |
WO2017162660A1 (en) | Leaktight connector for gas-insulated electrical device, comprising a wide annular seal | |
FR2846477A1 (en) | Cable entry gland with external sealing ring protected by a locking ring for use in explosive environments, uses seal clamped over cable entry to gland and sealing ring under locking ring to seal gland assembly | |
FR2763430A1 (en) | Electrical connection block for rigid cables | |
FR2719164A1 (en) | Electrical connector for sealed cable crossing | |
FR2610459A1 (en) | ELECTRICAL CABLE, IN PARTICULAR ISOLATED TO IMPREGNATED PAPER, AT THE END OF WHICH A CONNECTING DEVICE IS REFLECTED | |
FR2632782A1 (en) | Earth contact for coaxial-cable connector | |
FR2813452A1 (en) | SEALED PARTITIONING PARTITION AND THREE - PHASE SHIELDED ELECTRICAL INSTALLATION WITH GAS INSULATION PROVIDED WITH SUCH A PARTITION | |
CA1296400C (en) | Electrical cable with impregnated paper sheathing and end connector | |
EP2272135B1 (en) | Device for preventing the establishment of an electric arc between two conductive elements |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19990614 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE |
|
17Q | First examination report despatched |
Effective date: 19990929 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): DE |
|
REF | Corresponds to: |
Ref document number: 69723720 Country of ref document: DE Date of ref document: 20030828 Kind code of ref document: P |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20040426 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20121128 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69723720 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140603 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69723720 Country of ref document: DE Effective date: 20140603 |