EP0510019B1 - Kabelverbinder - Google Patents
Kabelverbinder Download PDFInfo
- Publication number
- EP0510019B1 EP0510019B1 EP91901313A EP91901313A EP0510019B1 EP 0510019 B1 EP0510019 B1 EP 0510019B1 EP 91901313 A EP91901313 A EP 91901313A EP 91901313 A EP91901313 A EP 91901313A EP 0510019 B1 EP0510019 B1 EP 0510019B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- sockets
- socket
- surge arrester
- connector according
- 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.)
- Expired - Lifetime
Links
Images
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
Definitions
- This invention relates to a cable connector, and in particular to a connector for interconnecting a high voltage electric power cable with high voltage apparatus, such as a transformer or switchgear.
- high voltage is meant a voltage in excess of 1kV, and may typically be in the range 10kV to 36kV.
- Cable connectors suitable for this purpose are disclosed in EP-A-0225190 and EP-A-0139483 the entire contents of which are included herein by this reference.
- EP-A-0225190 a cable connection arrangement in which an end of the cable is fully terminated and the connector is arranged to receive the terminated cable as a push-fit therein. A terminal then secures a conductive lug of the terminated cable to a contact member retained within the insulating body of the connector.
- the connector of EP-A-0139483 in addition to having the electrical contact member completely contained within the insulating body, receives the cable end, which need not be completely terminated, within a passageway that is heat-recoverable.
- a high voltage cable connector comprising an electrically insulating and substantially non-tracking body having four sockets extending thereinto; wherein a first of the sockets is arranged to receive a bushing of high voltage electrical apparatus, a second of the sockets is arranged to recieve a plug, a third of the sockets is arranged to receive one end of a high voltage electric power cable, and a fourth of the sockets is arranged to receive a surge arrester; wherein the third and fourth sockets open into one another whereby the one end of the cable and one end of the surge arrester can be electrically connected together; within the insulating body and wherein the third and fourth sockets open into the second socket thereby in the absence of the plug to allow access through the second socket to said one ends of the cable and surge arrester for connection to each other and, in operation, to a terminal of the bushing of the electrical apparatus.
- surge arresters or surge diverters
- surge arresters are normally non-conductive, but their rating is selected for a given high voltage system such that on occurrence of a voltage above a given value they become conductive and safely conduct fault current to earth before any damage is done to the system. The surge arrester then returns to its non-conductive state.
- the operative component of a surge arrester may comprise a nonlinear resistor arrangement formed from a plurality, that its to say two or more, of metal oxide, for example zinc oxide, varistor blocks stacked end-to-end, having a plate or other conductive member at each end to form a pair of electrodes.
- the resistor and electrode arrangement is mounted within and retained by a housing, which may be formed from a non-tracking insulating polymeric material or from porcelain.
- 'non-tracking' material is meant a material that is resistant to the formation of carbonaceous paths therealong, and that satisfies the requirements of the ASTM D 2303 Inclined Plane test.
- the outer surface of the surge arrester may be convoluted and/or may of shedded configuration for enhanced electrical performance, particularly in adverse environmental conditions of salt, acids and humidity.
- the present invention thus provides overvoltage protection for a high voltage system in a particularly convenient manner by combining the features of cable connector and surge arrester in a single compact unit.
- the insulating body of the connector contains a electric contact means that is arranged in operation, that is to say when a cable and a surge arrester are mounted in the connector and the connector is mounted on the electrical apparatus, to provide electrical connection between, on the one hand, the terminal of the bushing of the apparatus and, on the other hand, the said one end of the cable and of the surge arrester.
- the contact means may comprise a first elongate portion, which may be a pin or a socket, that extends into the first socket, a second elongate portion that extends into the second socket, and an intermediate portion that is mechanically retained by the insulating body of the connector.
- the first and second elongate portions extend freely into their respective sockets, i.e.
- the surge arrester and cable when fitted to the connector preferably extend sealingly through their respective sockets in the insulating body and are connected to the second portion of the electrical contact member within the second socket.
- the plug is advantageously sealingly fitted into the second socket, and may receive, and mechanically support, the free end of the second portion of the contact member.
- the plug may be provided with a capacitive test point, accessible from outside the connector when the plug is mounted therein, for determination of voltage applied to the contact member.
- a particularly compact configuration of connector can be obtained when the first and second sockets are substantially axially aligned with one another, and the third and fourth sockets extend transversely thereof substantially in the same plane and to the same side of the first and second sockets.
- the distance between the bushing of the electrical apparatus and the plug can thus be minimised whilst not only allowing for connection of the cable but also allowing for the presence of the surge arrester.
- Such a configuration is particularly useful when the connector, and particularly three adjacent connectors of a three-phase system, need to be mounted within a cabinet which either needs to be as small as possible or is an existing cabinet that was not originally designed for a system incorporating a surge arrester.
- the fitting of the cable into the connector may be as disclosed in EP-A-0225190 or as in EP-A-0139483.
- one end of the electric cable extends sealingly into the insulating body through the third socket, an outer insulating jacket of the cable has been removed to expose an electrical screen of the cable, the screen has been removed to expose primary insulation of the cable, and the primary insulation has been removed to expose a conductor of the cable, and the cable is terminated by electrical stress control material that extends over the exposed end of the screen and along at least part of the exposed primary insulation, and by electrical insualtion material that extends in close conformity over the cable screen and over the stress control material.
- the sockets may be arranged to receive the associated component as a push fit therein.
- one or more of the sockets, and in particular the third and/or fourth socket may be recoverable, preferably by the application of heat thereto, in order to achieve sealing conformity with the associated component.
- An example of heat sealing a cable into a connector is shown in EP-A-0139483.
- the entire surge arrester apart from its earthing terminal may be enclosed within the fourth socket, it is envisaged that the body of the surge arrester may remain outside the connector and that a terminal extending from one end will be introduced through the fourth socket to make the required electrical connection.
- the connector has an insulating non-tracking body 2 of plastics material, such as EPDM.
- the body 2 has a first socket 4 that is of inwardly tapering and frusto-conical configuration.
- a second socket 6 of the body 2 has the same configuration and is axially aligned with the socket 4.
- a third socket 8, of circular section leads into the connector body 2 perpendicularly to the sockets 4 and 6 and opens into the second socket 6.
- a fourth socket 10, of circular section also leads into the connector body 2 perpendicularly to the first and second sockets 4 and 6, in the same plane and extending in the same general direction as the socket 8.
- An annular metal contact disc 12 for example of brass or copper, is retained in a recess of the insulating body 2 at the junction of the first and second sockets 4, 6 and threadedly receives a conductive contact pin 14 therein such that a first portion 16 of the pin extends axially into the first socket 4 and a second portion 18 of the pin extends into the second socket 6.
- a 15kV cable 20 that has been completely terminated and that has an outer sleeve 22 of heat-recoverable insulating, non-tracking polymeric tubing thereon and a metal connecting lug 24 (see also Figure 2) at the end thereof is sealingly inserted as a push-fit into the socket 8 so as to dispose the lug 24 around the contact pin 14 adjacent the contact-disc 12.
- the lug 24 is then secured in position by means of a nut 25 and a spring washer, access to do this being obtained via the socket 6.
- a surge arrester 26 has an insulating, non-tracking housing 28, and is terminated at one end by an insulated rod 30 having a connecting lug 32 (see also Figure 2) at the free end thereof, and at the other end by an earthing stud 35.
- the rod 30 is sealingly inserted as a push-fit into the socket 10 so as to dispose the lug 32 around the contact pin 14 adjacent the cable locking nut 25.
- the lug 32 is then secured in position by a further nut 34 and a spring washer.
- a back plug 36 of insulating plastics material is then sealingly inserted as a push-fit into the socket 6.
- the plug 36 has a metal insert 38 that slidably receives the free end of the second portion 18 of the contact pin 14.
- the connector body 2 is mounted on electrical apparatus (not shown) such as a transformer or switchgear by having an insulating bushing 40 of the apparatus sealingly inserted as a push-fit into the socket 4. This action causes the first portion 16 of the contact pin 14 to engage with a conductive terminal 42 of the electrical apparatus that extends through the bushing 40.
- electrical apparatus not shown
- electrical apparatus such as a transformer or switchgear
Landscapes
- Cable Accessories (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Multi-Conductor Connections (AREA)
- Communication Cables (AREA)
Claims (10)
- Hochspannungskabelverbinder mit einem elektrisch isolierenden und im wesentlichen kriechstromfesten Körper mit vier Buchsen, die sich in den Körper erstrecken;
wobei eine erste Buchse zur Aufnahme einer Durchführung einer elektrischen Hochspannungsvorrichtung angeordnet ist, eine zweite Buchse zur Aufnahme eines Steckers angeordnet ist, eine dritte Buchse zur Aufnahme des einen Endes eines elektrischen Hochspannungsversorgungskabels angeordnet ist und eine vierte Buchse zur Aufnahme eines Überspannungsschutzes angeordnet ist;
wobei sich die dritte und vierte Buchse ineinanderöffnen, so daß das eine Ende des Kabels und das eine Ende des Überspannungsschutzes innerhalb des isolierenden Körpers elektrisch miteinander verbunden werden können;
und wobei sich die dritte und die vierte Buchse in die zweite Buchse öffnen, um dadurch bei Abwesenheit des Steckers den Zugang durch die zweite Buchse zu den einen Enden des Kabels und des Überspannungsschutzes zur Verbindung miteinander und, im Betrieb, mit einem Anschluß der Durchführung der elektrischen Vorrichtung zu ermöglichen. - Verbinder nach Anspruch 1,
der eine in seinem Isolierkörper angebrachte elektrische Kontakteinrichtung aufweist, wobei die Kontakteinrichtung im Betrieb so angeordnet ist, daß sie einen elektrischen Kontakt mit dem Anschluß der Durchführung der elektrischen Vorrichtung und dem einen Ende des Kabels und des Überspannungsschutzes herstellt. - Verbinder nach Anspruch 2,
wobei die elektrische Kontakteinrichtung einen ersten langgestreckten Bereich, der sich frei in die erste Buchse erstreckt, einen zweiten langgestreckten Bereich, der sich frei in die zweite Buchse erstreckt, sowie einen Zwischenbereich aufweist, der von dem Isolierkörper des Verbinders mechanisch zurückgehalten wird. - Verbinder nach Anspruch 2 oder 3,
der einen Überspannungsschutz aufweist, wobei das eine Ende des Überspannungsschutzes sich abdichtend durch die vierte Buchse in den Isolierkörper erstreckt und mit der elektrischen Kontakteinrichtung verbunden ist. - Verbinder nach einem der Ansprüche 2 bis 4,
wobei das eine Ende eines elektrischen Kabels sich abdichtend durch die dritte Buchse in den Isolierkörper erstreckt und mit der elektrischen Kontakteinrichtung verbunden ist. - Verbinder nach einem der Ansprüche 2 bis 5,
mit einem Stecker, der abdichtend in die zweite Buchse eingeführt ist und ein Ende der elektrischen Kontakteinrichtung aufnimmt. - Verbinder nach einem der vorhergehenden Ansprüche,
wobei die erste und die zweite Buchse im wesentlichen axial miteinander ausgerichtet sind, und wobei sich die dritte und die vierte Buchse im wesentlichen in derselben Ebene quer dazu erstrecken. - Verbinder nach einem der vorhergehenden Ansprüche,
wobei die dritte und/oder die vierte Buchse zur formschlüssigen Aufnahme des Kabels bzw. des Überspannungsschutzes angeordnet sind. - Verbinder nach Anspruch 8,
wobei das eine Ende eines elektrischen Kabels sich abdichtend durch die dritte Buchse in den Isolierkörper erstreckt;
wobei ein äußerer Isoliermantel des Kabels entfernt worden ist, um eine elektrische Abschirmung des Kabels freizulegen, die Abschirmung entfernt worden ist, um die Primärisolierung des Kabels freizulegen, und die Primärisolierung entfernt worden ist, um einen Leiter des Kabels freizulegen;
wobei das Kabel mit einem Material zur Kontrolle der elektrischen Belastung, das sich über das freigelegte Ende der Abschirmung und wenigstens entlang eines Teils der Primärisolierung erstreckt, sowie mit einem elektrischen Isoliermaterial abgeschlossen ist, das sich in dichter Anpassung über die Kabelabschirmung und über das Material zur Belastungskontrolle erstreckt;
und wobei die dritte Buchse zur formschlüssigen Aufnahme des abgeschlossenen Kabels angeordnet ist. - Verbinder nach einem der Ansprüche 1 bis 7, wobei die dritte und/oder die vierte Buchse, bevorzugt durch Wärme, auf das Kabel bzw. den Überspannungsschutz rückstellbar sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9000488 | 1990-01-09 | ||
GB909000488A GB9000488D0 (en) | 1990-01-09 | 1990-01-09 | Cable connector |
PCT/GB1990/002002 WO1991011040A1 (en) | 1990-01-09 | 1990-12-21 | Cable connector |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0510019A1 EP0510019A1 (de) | 1992-10-28 |
EP0510019B1 true EP0510019B1 (de) | 1995-08-30 |
Family
ID=10669036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91901313A Expired - Lifetime EP0510019B1 (de) | 1990-01-09 | 1990-12-21 | Kabelverbinder |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0510019B1 (de) |
AT (1) | ATE127284T1 (de) |
AU (1) | AU7036791A (de) |
DE (1) | DE69022071T2 (de) |
ES (1) | ES2087992T3 (de) |
GB (1) | GB9000488D0 (de) |
IL (1) | IL96905A (de) |
MY (1) | MY107812A (de) |
NO (1) | NO306362B1 (de) |
WO (1) | WO1991011040A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7593207B2 (en) | 2003-01-22 | 2009-09-22 | Abb Technology Ag | Gas-insulated switchgear assembly or component of a gas-insulated switchgear assembly having an outdoor bushing |
WO2014108213A1 (en) | 2013-01-14 | 2014-07-17 | Tyco Electronics Raychem Gmbh | Disconnectable cable joints with three sockets |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0652608A1 (de) * | 1993-11-05 | 1995-05-10 | Siemens Schweiz AG | Vorrichtung zum Anschliessen und Verbinden elektrischer Leitungen |
DE9404392U1 (de) * | 1994-03-16 | 1994-05-11 | Felten & Guilleaume Energietechnik AG, 51063 Köln | Überspannungsableiter-Kabelsteckteil-Verbindung |
DE4408818C1 (de) * | 1994-03-16 | 1995-05-04 | Felten & Guilleaume Energie | Überspannungsableiter-Anordnung an einem Kabelstecker |
DE9404393U1 (de) * | 1994-03-16 | 1994-05-11 | Felten & Guilleaume Energietechnik AG, 51063 Köln | Überspannungsableiterstecker |
DE19845776A1 (de) * | 1998-09-22 | 2000-03-23 | Siemens Ag | T-förmige Verbindungsanschlüsse für gasisolierte Mittelspannungsschaltanlagen |
EP2876735B1 (de) * | 2013-11-21 | 2019-08-07 | Tyco Electronics Raychem GmbH | Steckverbinder für Mittel- und Niederspannungsanwendung |
EP2876734B1 (de) * | 2013-11-21 | 2018-02-28 | Tyco Electronics Raychem GmbH | Verbinderbaugruppe |
DE102014221795A1 (de) | 2014-10-27 | 2016-04-28 | Bayerische Motoren Werke Aktiengesellschaft | Steckverbinder mit verbessertem Hochspannungsschutz |
CN105048129A (zh) * | 2015-08-17 | 2015-11-11 | 广东安迪普科技有限公司 | 一种屏蔽后斜双插头 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4352139A (en) * | 1980-02-04 | 1982-09-28 | Rte Corporation | Flexible connector for H.V. arrester |
GB8325402D0 (en) * | 1983-09-22 | 1983-10-26 | Raychem Gmbh | Electrical apparatus |
US4638284A (en) * | 1984-12-05 | 1987-01-20 | General Electric Corp. | Tubular varistor arrangement |
GB8529454D0 (en) * | 1985-11-29 | 1986-01-08 | Raychem Gmbh | Cable connection |
-
1990
- 1990-01-09 GB GB909000488A patent/GB9000488D0/en active Pending
- 1990-12-21 DE DE69022071T patent/DE69022071T2/de not_active Expired - Fee Related
- 1990-12-21 EP EP91901313A patent/EP0510019B1/de not_active Expired - Lifetime
- 1990-12-21 AT AT91901313T patent/ATE127284T1/de not_active IP Right Cessation
- 1990-12-21 ES ES91901313T patent/ES2087992T3/es not_active Expired - Lifetime
- 1990-12-21 AU AU70367/91A patent/AU7036791A/en not_active Abandoned
- 1990-12-21 WO PCT/GB1990/002002 patent/WO1991011040A1/en active IP Right Grant
-
1991
- 1991-01-08 IL IL9690591A patent/IL96905A/en not_active IP Right Cessation
- 1991-01-08 MY MYPI91000022A patent/MY107812A/en unknown
-
1992
- 1992-07-08 NO NO922689A patent/NO306362B1/no unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7593207B2 (en) | 2003-01-22 | 2009-09-22 | Abb Technology Ag | Gas-insulated switchgear assembly or component of a gas-insulated switchgear assembly having an outdoor bushing |
WO2014108213A1 (en) | 2013-01-14 | 2014-07-17 | Tyco Electronics Raychem Gmbh | Disconnectable cable joints with three sockets |
US9537247B2 (en) | 2013-01-14 | 2017-01-03 | Tyco Electronics Raychem Gmbh | Detachable cable joint with three sockets |
Also Published As
Publication number | Publication date |
---|---|
DE69022071T2 (de) | 1996-01-18 |
NO922689D0 (no) | 1992-07-08 |
WO1991011040A1 (en) | 1991-07-25 |
NO922689L (no) | 1992-07-08 |
GB9000488D0 (en) | 1990-03-07 |
MY107812A (en) | 1996-06-29 |
ATE127284T1 (de) | 1995-09-15 |
IL96905A (en) | 1994-07-31 |
EP0510019A1 (de) | 1992-10-28 |
ES2087992T3 (es) | 1996-08-01 |
DE69022071D1 (de) | 1995-10-05 |
AU7036791A (en) | 1991-08-05 |
IL96905A0 (en) | 1992-03-29 |
NO306362B1 (no) | 1999-10-25 |
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