WO2017006360A1 - Connecteur enfichable - Google Patents

Connecteur enfichable Download PDF

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Publication number
WO2017006360A1
WO2017006360A1 PCT/IT2016/000159 IT2016000159W WO2017006360A1 WO 2017006360 A1 WO2017006360 A1 WO 2017006360A1 IT 2016000159 W IT2016000159 W IT 2016000159W WO 2017006360 A1 WO2017006360 A1 WO 2017006360A1
Authority
WO
WIPO (PCT)
Prior art keywords
fact
shield
plug
tubular
connector according
Prior art date
Application number
PCT/IT2016/000159
Other languages
English (en)
Inventor
Lorenzo Peretto
Alberto Bauer
Original Assignee
Green Seas Ventures, Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Green Seas Ventures, Ltd filed Critical Green Seas Ventures, Ltd
Publication of WO2017006360A1 publication Critical patent/WO2017006360A1/fr

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/142—Arrangements for simultaneous measurements of several parameters employing techniques covered by groups G01R15/14 - G01R15/26
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/16—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using capacitive devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure

Definitions

  • the present invention concerns a plug-in connector able to sense the electric field and/or the magnetic field generated by a live conductor located inside the same plug-in connector, with the purpose, for example, to allow the measurement of the voltage and/or of the current of the same live conductor in relationship with the fields sensed.
  • the present invention concerns an installation of a voltage sensor or of a combined voltage/current sensors into a plug-in connector, in which said plug-in connector is used for connecting power cables to apparatus like switchgears, transformers, etc.
  • the present invention concerns a plug-in connector of the above type able to sense the electric field and/or the magnetic field generated by the live conductor located inside the same plug-in connector without being affected by any surrounding electric fields and/or magnetic fields, such as, for example, the electric fields and/or the magnetic fields generated by other live conductors located nearby.
  • the known plug-in connectors are not able to sense the electric field and/or the magnetic field generated by the live conductor positioned into the same plug-in and, besides, they are not able to sense the electric field and/or the magnetic field generated by said live conductor positioned into the same plug-in connector without being affected by the surrounding electric fields and/or magnetic fields generated by other live conductors located nearby.
  • the object of the present invention is to overcome the aforementioned drawbacks.
  • _The invention which is characterized by the claims, solves the problem of creating a plug-in connector, in which said plug-in connector comprises a cable positioned within said plug-in connector, in which said plug-in connector is characterized by the fact in that it comprises: _a first inner shield, in which said first inner shield is made by semiconductive o conductive material, in which said first inner shield is a tubular element positioned around said the cable; _an electric field sensor, in which said electric filed sensor comprises a ring of conductive material, in which said ring is electrically isolated with respect to the first inner screen, in which said ring is able to detect the electric field lines generated by the first shield; _a second external shield, in which said second shield is a tubular element made by conductive or semiconductive material and connected to ground, in which said second screen is electrically isolated with respect to said ring, in which said second screen provides to shield the same ring with respect to the field lines generated by outer conductors positioned nearby.
  • _ Figure 1 and 1A show schematically a first embodiment of the plu-in connector proposed by the present invention (sectional views);
  • _ Figure 2 and 2A show schematically a second embodiment of the plug-in connector proposed by the present invention (sectional views);
  • _ Figure 3 and 3A show schematically a third embodiment of the plug-in connector proposed by the present invention (sectional views);
  • Figure 1 and 1A are sectional views and they illustrate a plug-in connector 100 according to a first embodiment of the present invention, that is, a plug-in connector 100 equipped with a current sensor 101 and a capacitive voltage sensor 102.
  • the plug-in connector 100 substantially, mainly, comprises:
  • the connector/sleeve 105 is made of conductive material and it is electrically connected (crimped) with respect to cable 104.
  • connection/fixing means 106 and 107 are made of conductive material, they are connected to the connector/sleeve 105 and they comprise a stem 106a connected to the connector/sleeve 105, an eyelet 106b and a screw 107a.
  • the first inner shield 108 is preferably made by semiconductive material (or by conductive material) and it is substantially a tubular element positioned around the connector/sleeve 105 and/or around the cable 104.
  • said first inner shield 108 has a shape like a bell with and aperture on the top or a shape like a sleeve.
  • said first shield 108 can be electrically connected to the live cable 104 and/or to other elements at high voltage, as for example, it can be electrically connected to the stem 106a in order to electrify said first shield 108 by contact, preferably implemented by means of an electrical contact in the vicinity of said upper opening of said inner screen 108.
  • said first shield 108 can be not electrically connected to the live cable 104 and/or it can be not electrically connected to other elements at high voltage and, in this case, said first shield 108 will be electrified by means of electrostatic induction, i.e. by a capacitive coupling between the cable/connector 104/105 and the first shield 108.
  • the current sensor 101 is preferably a Rogowski coil 109 with an external shield, in which said external shield is connected to the ground.
  • the electric field sensor 102 preferably comprises a ring 110 of conductive material, wherein said ring 110 is electrically isolated with respect to the first inner screen 108, wherein said ring 110 is preferably positioned in a spaced manner around the first inner screen 108, wherein said ring 110 is able to detect the electric field lines generated by the first shield 108, that is, it forms a capacitive coupling between the first inner shield 108 which acts as first element and the ring 110 which acts as second element.
  • the second shield 111 is a tubular element made by conductive or semiconductive material and it is connected to ground, wherein said second screen 111 is electrically isolated with respect to said ring 110, wherein said second screen 111 is preferably positioned in a spaced manner around the said ring 110, in which the said second screen 111 provides to shield the same ring 110 with respect to the field lines generated by outer conductors positioned nearby.
  • said second tubular shield 111 substantially, axially, from top to down, comprises:
  • a second portion 111b having a shape like an annulus, i.e. a region bounded by two concentric circles, i.e. like a disk with a hole in the middle;
  • first tubular portion 111a has diameter larger than said second tubular portion 111c, and in which the Rogowski coil 109 is preferably positioned in the vicinity of the top of said first tubular portion 111a and against the inner face of the same first tubular portion 111a.
  • the current sensor 101 Rogowski 109 and the voltage sensor 102 (ring 110) are provided with respective cables 109a (shielded twisted-pair) and 110a (shielded-cable) for transmitting the signals to the conditioning circuit 113 located in the shielded chamber 112, inside the outer covering 115.
  • _a bottom face F2_100 configured by the portion 111a of the second tubular shield 111
  • _a lower face F3_100 configured by the second portion 111b of the second tubular shield 111
  • the inner shield 108 is at high voltage and features two functions: 1)_it generates the electric field detected by the voltage capacitive sensor 102; and 2)_it acts as a screen for electric fields not generated by the inner shield 108.
  • the internal screen 108 is at high potential and execute also the function, >_of covering/shielding the end portion of the cable 104 and/or
  • conditioning circuit 113 With reference to the conditioning circuit 113 it provides the proper amplification or attenuation of the signal from the sensors 101 and 102 as well as filtering and phase adjustment.
  • FIG. 2 and 2A illustrate a plug-in connector 200 according to a second embodiment of the present invention, that is, a plug-in connector 200 equipped with capacitive voltage sensor 202.
  • the plug-in connector 200 substantially, mainly, comprises:
  • the connector/sleeve 205 is made by conductive material and it is electrically connected (crimped) with respect to cable 204.
  • connection/fixing means 206 and 207 are made by conductive material and they are connected to the connector/sleeve 205 and they comprise a stem 206a connected to the connector/sleeve 205, an eyelet 206b and a screw 207a.
  • the first inner shield 208 is preferably made by semiconductor material (or by conductive material) and it is substantially a tubular element positioned around the connector/sleeve 205 and/or around the cable 204.
  • said first inner shield 208 has a shape like a bell with and aperture on the top or a shape like a sleeve.
  • said first shield 208 can be electrically connected to the live cable 204 and/or to other elements at high voltage and, for example, it can be electrically connected to the stem 206a in order to electrify said first shield 208 by contact, preferably implemented by means of an electrical contact in the vicinity of said upper opening of said inner screen 208.
  • said first shield 208 can be not electrically connected to the live cable 204 and/or it can be not electrically connected to other elements at high voltage and, in this case, said first shield 208 will be electrified by means of electrostatic induction, i.e. by a capacitive coupling between the connector/sleeve 205 and/or cable 204 and the first shield 208.
  • the electric field sensor 202 preferably comprises a ring 210 of conductive material, wherein said ring 210 is electrically isolated with respect to the first inner screen 208, wherein said ring 210 is preferably positioned in a spaced manner around the first inner screen 208, wherein said ring 210 is able to detect the electric field lines generated by the first shield 208, that is, it forms a capacitive coupling between the first inner shield 208 which acts as first element and the ring 210 which acts as second element.
  • the second shield 211 is a tubular element made by conductive or semiconductive material and it is connected to ground, wherein said second screen 211 is electrically isolated with respect to said ring 210, wherein said second screen 211 is preferably positioned in spaced manner around the said ring 210, in which the said second screen 211 provides to shield the same ring 210 with respect to the field lines generated by outer conductors positioned nearby.
  • said second tubular shield 211 substantially, axially, from top to down, comprises:
  • first portion 211a having a shape like an annulus, i.e. a region bounded by two concentric circles, i.e. like a disk with a hole in the middle;
  • a third portion 211c having a shape like an annulus, i.e. a region bounded by two concentric circles, i.e. like a disk with a hole in the middle;
  • the voltage sensor 202 (ring 210) is provided with a shielded cable 210a for transmitting the signals to the conditioning circuit 213 located in the shielded chamber 212 inside the outer covering 215.
  • the inner shield 208 is at high voltage and features two functions: 1)_it generates the electric field detected by the voltage capacitive sensor 202; and 2)_it acts as a shield for electric fields not generated by the inner shield 208.
  • the internal screen 208 is at high potential and execute also the function, >_of covering/shielding the end portion of the cable 204 and/or
  • conditioning circuit 213 With reference to the conditioning circuit 213 it provides the proper amplification or attenuation of the signal from the sensors 201 and 202 as well as filtering and phase adjustment.
  • Jt includes one conductor at ground potential, one shield at ground potential and one conductor carrying the conditioned signal from the voltage sensor (common- mode output).
  • FIG. 3 and 3A illustrate a plug-in connector 300 according to a third embodiment of the present invention, that is, a plug-in connector 300 equipped with a current sensor 301 and a capacitive sensor voltage 302.
  • the plug-in connector 300 substantially, mainly, comprises:
  • the connector/sleeve 305 is made of conductive material and it is electrically connected (crimped) with respect to cable 304.
  • connection/fixing means 306 and 307 are made of conductive material, they are connected to the connector/sleeve 305 and they comprise a stem 306a connected to the connector/sleeve 305, an eyelet 306b and a screw 307a.
  • the first inner shield 308 is preferably made by semiconductor material (or by conductive material) and it is substantially a tubular element positioned around the connector/sleeve 305 and/or around the cable 304.
  • said first inner shield 308 has a shape like a bell with and aperture on the top or a shape like a sleeve.
  • said first shield 308 can be electrically connected to the live cable 304 and/or to other elements at high voltage, as for example, it can be electrically connected to the stem 306a in order to electrify said first shield 308 by contact, preferably implemented by means of an electrical contact in the vicinity of said upper opening of said inner screen 308.
  • said first shield 308 can be not electrically connected to the live cable 304 and/or it can be not electrically connected to other elements at high voltage and, in this case, said first shield 308 will be electrified by means of electrostatic induction, i.e. by a capacitive coupling between the cable/connector 304/305 and the first shield 308.
  • the current sensor 301 is preferably a Rogowski coil 309 with an external shield, in which said external shield is connected to the ground.
  • the electric field sensor 302 preferably comprises a ring 310 of conductive material, wherein said ring 310 is electrically isolated with respect to the first inner screen 308, wherein said ring 310 is preferably positioned in a spaced manner around the first inner screen 308, wherein said ring 310 is able to detect the electric field lines generated by the first shield 308, that is, it forms a capacitive coupling between the first inner shield 308 which acts as first element and the ring 310 which acts as second element.
  • the second shield 311 is a tubular element made by conductive or semiconductive material and it is connected to ground, wherein said second screen 311 is electrically isolated with respect to said ring 310, wherein said second screen 311 is preferably positioned in spaced manner around the said ring 310, in which the said second screen 311 provides to shield the same ring 310 with respect to the field lines generated by outer conductors positioned nearby.
  • said second tubular shield 31 substantially, axially, from top to down, comprises:
  • _a second portion 311b having a shape like an annulus, i.e. a region bounded by two concentric circles, i.e. like a disk with a hole in the middle;
  • _a fourth portion 311d having a shape like an annulus, i.e. a region bounded by two concentric circles, i.e. like a disk with a hole in the middle;
  • the third tubular portion 311c has diameter larger than said first tubular portion 311a and larger than said fifth portion 311e.
  • the Rogowski coil 309 is positioned externally with respect to the second tubular shield 311 and, preferably, said Rogowski coil 309 is positioned around and near to the first portion 311a as well as close to the upper face of the second portion 311 b, in order to reduce the overall dimensions.
  • the current sensor 301 Rogowski 309 and the voltage sensor 302 (ring 310) are provided with respective cables 309a (shielded twisted-pair) and 310a (shielded cable) for transmitting the signals to the conditioning circuit 313 disposed within the shielded chamber 312 formed in the outer covering 315.
  • cables 309a shieldded twisted-pair
  • 310a shieldded cable
  • the inner shield 308 is at high voltage and features two functions: 1)_it generates the electric field detected by the voltage capacitive sensor 302; and 2)_it acts as a screen for electric fields not generated by the inner shield 308.
  • _The internal screen 308 is at high potential and execute also the function: >_of covering/shielding the end portion of the cable 304 and/or
  • conditioning circuit 313 provides the proper amplification or attenuation of the signal from the sensors 301 and 302 as well as filtering and phase adjustment.
  • Jt includes two conductors for the conditioned differential-mode output of the current sensor, one conductor at ground potential, one shield at ground potential and one conductor carrying the conditioned signal from the voltage sensor (common-mode output).

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

Un connecteur enfichable comprend : un câble (104) positionné à l'intérieur dudit connecteur ; un premier blindage intérieur (108) en matériau semi-conducteur ou conducteur, dans lequel ledit premier blindage intérieur est un élément tubulaire positionné autour dudit câble (104) ; un capteur de champ électrique (102) qui comprend une bague (110) d'un matériau conducteur qui est isolée électriquement du premier écran intérieur (108), ladite bague (110) permettant de détecter les lignes de champ électrique produites par le premier blindage (108) ; un deuxième blindage externe (111) fabriqué dans un matériau conducteur ou semi-conducteur et relié à la terre, ledit deuxième écran (111) permettant de blinder cette même bague (110) contre les lignes de champ produites par les conducteurs extérieurs positionnés à proximité.
PCT/IT2016/000159 2015-07-05 2016-06-20 Connecteur enfichable WO2017006360A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201562188678P 2015-07-05 2015-07-05
US201562188679P 2015-07-05 2015-07-05
US62/188,678 2015-07-05
US62/188,679 2015-07-05

Publications (1)

Publication Number Publication Date
WO2017006360A1 true WO2017006360A1 (fr) 2017-01-12

Family

ID=56936459

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2016/000159 WO2017006360A1 (fr) 2015-07-05 2016-06-20 Connecteur enfichable

Country Status (1)

Country Link
WO (1) WO2017006360A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111542973A (zh) * 2018-12-20 2020-08-14 Abb瑞士股份有限公司 电力电缆连接器、电力系统和用于组装电力电缆连接器的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5432438A (en) * 1991-06-29 1995-07-11 Asea Brown Boverti Ltd. Combined current and voltage transformer for a metal-enclosed gas-insulated high-voltage switching station
DE4435864A1 (de) * 1994-10-07 1996-04-11 Pfisterer Elektrotech Karl Garnitur in Form einer Durchführung oder einer Steckbuchse für Kabelstecker
US20120098519A1 (en) * 2010-10-26 2012-04-26 Juds Mark A Sensor assembly, trip unit including the same, and method of manufacturing a sensor assembly
US20120243140A1 (en) * 2011-03-22 2012-09-27 Nikhil Purushottam Gan Circuit protection device for use in medium and high voltage environments
EP2819250A1 (fr) * 2013-06-26 2014-12-31 3M Innovative Properties Company Dispositif de connexion de câble
EP2824787A2 (fr) * 2013-06-28 2015-01-14 Thomas & Betts International, LLC Connecteur électrique comprenant un composant rétrécissable à froid

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5432438A (en) * 1991-06-29 1995-07-11 Asea Brown Boverti Ltd. Combined current and voltage transformer for a metal-enclosed gas-insulated high-voltage switching station
DE4435864A1 (de) * 1994-10-07 1996-04-11 Pfisterer Elektrotech Karl Garnitur in Form einer Durchführung oder einer Steckbuchse für Kabelstecker
US20120098519A1 (en) * 2010-10-26 2012-04-26 Juds Mark A Sensor assembly, trip unit including the same, and method of manufacturing a sensor assembly
US20120243140A1 (en) * 2011-03-22 2012-09-27 Nikhil Purushottam Gan Circuit protection device for use in medium and high voltage environments
EP2819250A1 (fr) * 2013-06-26 2014-12-31 3M Innovative Properties Company Dispositif de connexion de câble
EP2824787A2 (fr) * 2013-06-28 2015-01-14 Thomas & Betts International, LLC Connecteur électrique comprenant un composant rétrécissable à froid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111542973A (zh) * 2018-12-20 2020-08-14 Abb瑞士股份有限公司 电力电缆连接器、电力系统和用于组装电力电缆连接器的方法
US11050196B2 (en) 2018-12-20 2021-06-29 Abb Schweiz Ag Power cable connector, electrical system and method for assembling power cable connector

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