WO2008076058A1 - Matériau de transformation de champ - Google Patents
Matériau de transformation de champ Download PDFInfo
- Publication number
- WO2008076058A1 WO2008076058A1 PCT/SE2007/050943 SE2007050943W WO2008076058A1 WO 2008076058 A1 WO2008076058 A1 WO 2008076058A1 SE 2007050943 W SE2007050943 W SE 2007050943W WO 2008076058 A1 WO2008076058 A1 WO 2008076058A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- grading material
- field
- field grading
- material according
- zinc oxide
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 86
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000011787 zinc oxide Substances 0.000 claims abstract description 43
- 230000005684 electric field Effects 0.000 claims abstract description 42
- 239000011159 matrix material Substances 0.000 claims abstract description 32
- 239000002245 particle Substances 0.000 claims abstract description 32
- 239000006229 carbon black Substances 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims abstract description 8
- 229920002943 EPDM rubber Polymers 0.000 claims description 12
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 235000019241 carbon black Nutrition 0.000 description 24
- 239000002105 nanoparticle Substances 0.000 description 10
- 230000009021 linear effect Effects 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 5
- 239000003273 ketjen black Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000009022 nonlinear effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- 229920000034 Plastomer Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 238000010060 peroxide vulcanization Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229920002397 thermoplastic olefin Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
- H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
- H02G15/103—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/184—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress
Definitions
- the present invention relates to a field grading material comprising a polymeric matrix and filler particles, as well as to a device for grading an electric field.
- the invention also relates to use of a field grading material at a joint or termination of an electric power cable.
- a cable comprises an insulating layer arranged around the conductor and a grounded shield arranged around the insulating layer.
- the grounded shield in the cable could also be referred to as a grounded outer conducting layer.
- the electric field is uniform along the cable axis and there is a variation in the field only in the radial direction. The entire potential difference between the conductor and the shield occurs across the insulation.
- medium voltage refers to a voltage in the interval 1-36 kV and high voltage to a voltage greater than 36 kV.
- the electric stresses in question can be reduced by grading the electric field at the transition of the electric field from the first medium to the second medium, e.g. from a shielded cable part to a cable part where the original shield has been removed.
- grading the electric field at the transition of the electric field from the first medium to the second medium, e.g. from a shielded cable part to a cable part where the original shield has been removed.
- There are a number of known methods for providing a stress control for example, by means of geometrical field control in the form of a stress cone arranged at the position where the shield ends, or to have a material that has the ability to distribute the field by itself.
- the material is usually referred to as a field grading material, but is also called a stress grading material.
- the electrical properties of a field grading material are dependant on the field it is exposed to. In connection with a field grading material both capacitive and resistive field grading are mentioned.
- Capacitive field grading is used in alternating current applications. Capacitive field grading can also be used to achieve field grading when voltages are occurring in the form of impulses.
- a body of a material having a dielectric constant higher than that of the insulation and with as low losses as possible is introduced around the unshielded part of the cable in the area closest to the shielded part of the cable and in electrical contact with the shield, whereby the spreading of the equipotential lines will be achieved.
- Capacitive field grading properties are also desired in a material adapted for grading the electric field in high- voltage direct current (HVDC) applications so as to achieve an effective field grading in case of suddenly occurring voltage surges .
- HVDC high- voltage direct current
- Resistive field grading can be used in alternating current as well as direct current applications. Resistive field grading can also be used in order to achieve field grading when voltages are occurring in the form of impulses.
- a body having a suitable resistance is introduced around the unshielded part of the cable in the area closest to the shielded part and in electric contact with the shield.
- a resistive voltage drop then occurs in the body, which results in a more uniform distribution of the potential. This potential distribution will be more linear if the body consists of a material exhibiting a non-linear electrical resistance that decreases with an increasing electric field.
- the non-linearity starts in a specific region of the electric field.
- the voltage drop along the field grading body will become more uniformly distributed in a body that exhibits such a nonlinear electrical resistance than in a body that does not.
- a field grading material with a non-linear electrical resistance i.e. a material that does not follow Ohms law, is achieved by combining at least two materials to a composite. Due to the area of use, the field grading material should be mechanically flexible. It is therefore suitable to use, for example, a rubber as a matrix and to mix it with semiconducting particles that is non-conducting at low voltages but becomes conducting at higher voltages. The particles forms a network within the matrix and the result is a composite being insulating at low electrical fields and having increased conductivity at higher electrical fields.
- a polymeric matrix containing nanoparticles of zinc oxide (ZnO) or silicon carbide (SiC) is described in published patent document WO2004/038735, where the polymeric matrix at least essentially consists of rubber, thermoplastics or a thermoplastic elastomer.
- European patent document EP 0 088 450 Bl describes a field grading material comprising a polymeric matrix comprising particles of ZnO or SiC, and carbon black particles.
- WO 2005/036563 describes a field grading material with a polymeric matrix comprising a nanoparticle filler heterogeneously distributed in the matrix.
- the nanoparticle filler may be ZnO particles.
- the surface of the nanoparticle may be modified by treatment with an anorganosilane or organotitanante compound.
- An object of the invention is to provide a field grading material of the type indicated in the preamble of claim 1 having improved or similar properties with respect to field grading materials already known. According to a first aspect of the invention this object is obtained by a field grading material according to claim 1.
- the field grading material comprises a polymeric matrix and a filler comprising zinc oxide and carbon black.
- the zinc oxide is essentially in the form of pure zinc oxide particles having at least one dimension smaller than, or equal to, 100 nm.
- the combination of pure zinc oxide particles smaller than, or equal to, 100 nm and carbon black in a polymeric matrix gives a field grading material with excellent field grading properties.
- Excellent field grading properties refers to a material having the desired non-linear properties, as described under "background art", for the field grading material.
- the field grading material is cost effective to produce, because pretreatment of the zinc oxide particle by surface treatment or by addition of doping substances is not necessary.
- pure zinc oxide refers to zinc oxide where the properties of the pure zinc oxide has not been modified by, for example, surface treatment or by addition of, for example, doping substances.
- pure zinc oxide does not exclude zinc oxide that contains a small amount of other substances than zinc oxide, for example, that is naturally present in the zinc oxide or origin from a contamination during the manufacturing of the zinc oxide .
- nano-sized particles having at least one dimension smaller than or equal to 100 nm refers to nano-sized particles having a width, length and/or height smaller than or equal to 100 nm.
- the nano-sized particles may of course have several or all dimensions smaller than or equal to 100 nm.
- the nano-sized particles may have any shape as long as they in at least one of their dimensions are in the interval of 0.1-100 nm.
- the pure zinc oxide particles have at least one dimension in the interval of 20-70 nm.
- the pure zinc oxide particles constitute less than 40% by volume of the field grading material.
- the pure zinc oxide particles constitute less than 30% by volume of the field grading material.
- the carbon black has an average particle size in the interval 1-100 nm, preferably 10-60 nm, and most preferably 15-50 nm.
- the carbon black constitutes between 0.2-10 % by volume, preferably 0.5-4 % by volume, and most preferably 1-3% by volume of the field grading material.
- the carbon black is self-assembling and is adapted to form a percolated network structure of carbon black and ZnO in the polymeric matrix.
- the electrical resistance of the material changes from a linear to a non-linear behavior.
- the amount of carbon black is chosen in dependence on the desired resistivity of the material.
- the self-assembling carbon back makes it possible to use very small amounts of carbon black to achieve the percolated network.
- the carbon black is, for example, the commercially available
- Ketjenblack ® Ketjenblack ® .
- the carbon black has an average size between 40-500 nm.
- the carbon black constitutes between 5-40 % by volume, preferably 10-30 % by volume, and most preferably 10-15 % by volume of the field grading material.
- the carbon black is between 40-500 nm it is present in the form of ball-shaped graphite.
- the ball- shaped graphite is present in form of filaments in the polymer matrix.
- the carbon filaments and pure zinc oxide particles turns into conducting paths and give the material its non-linear properties which are desired for grading the electric field.
- the polymeric matrix comprises EPDM (Ethylene Propylene Diene Monomer) rubber.
- EPDM has a good dielectric strength and has a low price compared to other polymeric matrix that could be used.
- the polymeric matrix comprises silicone.
- the field grading material can be injection molded to an electric field control device. Thereby the time for production of an electric field control device can be shortened. Also it is easier to manufacture a device with a complex shape due to the low viscosity of EPDM.
- the polymeric matrix comprises EVA (Ethylene Vinyl Acetate) .
- the object is achieved with an electric field control device for grading an electric field at an interruption of the insulation layer arranged around the conductor in a medium or high voltage cable, wherein the device comprises a field grading material according to any of claims 1-12.
- An interruption in the insulation of an electric cable occurs for example at a joint or at a termination of a cable.
- the field grading material in the electric field control device is arranged circumferential around the interruption of the insulation and in contact with the conductor of the cable and with a grounded outer conducting layer of the cable. This provides a uniform distribution of the electric field in a joint or termination for a cable for DC or AC.
- the object is achieved with the use of a field grading material according to claim 15 or 16.
- Figure 1 is a diagram showing the electrical resistivity as a function of applied electrical field for a field grading material according to an embodiment of the invention
- Figure 2 is a schematic cross-section of the field grading material according to an embodiment of the invention.
- Figure 3 is a schematic longitudinal cross-section of a joint of an electric power cable, provided with a body comprising a field grading material according to the invention. DESCRIPTION OF PREFERRED EMBODIMENTS
- the field grading material according to the present invention comprises a polymeric matrix and a filler comprising zinc oxide and carbon black.
- the zinc oxide is in the form of pure zinc oxide particles having at least one dimension smaller than or equal to 100 nm.
- the electrical resistivity (Ohmm) as function of applied electrical field (kV/mm) for a field-grading material comprising pure ZnO nanoparticles and carbon black is illustrated in figure 1.
- Curve A represents a field grading material comprising an EPDM matrix with 23 % by volume of pure zinc oxide nanoparticles and 1 % by volume of carbon black. The average diameter of the pure zinc oxide particles is 53 nm.
- the carbon black is Ketjenblack ® EC 300, with an average particle size of 20-30 nm. Ketjenblack ® EC products are electroconductive carbon black of very high purity.
- Ketjenblack ® EC-300J Due to their unique morphology in comparison to conventional carbon blacks, substantially lower amounts of Ketjenblack ® EC-300J, and even lesser amounts of Ketjenblack ® EC-600JD, are required for making plastics and elastomers conductive. This results in improved processing and mechanical properties of the finished electroconductive articles.
- the field grading material was prepared by drying the ZnO particles in vacuum at 190 0 C over night before use. Carbon black and the ZnO nanoparticles were added to the EPDM matrix.
- the matrix comprises EPDM as well as a stabilizer (stearic acid) and a peroxide curing agent (VAROX) . The compound was carefully mixed using a Brabender internal mixer at a temperature less than 80 0 C.
- the samples were compression molded at 180 0 C during 30 min.
- the samples were subsequently degassed in a vacuum-oven during 24 h and 80 0 C to evaporate by-products from the peroxide vulcanization.
- the final dimensions of the samples were approximately 1 mm in thickness and 210 mm in diameter.
- Curve A shows that the above described material has a non- linearity which starts between l,0E9 and 1,0ElO ohmm and a conductivity at high electrical fields which makes the material suitable for use as a field grading material.
- the level of the resistivity of curve A shows that the material is especially suitable to be used as a field grading material for High Voltage Direct Current (HVDC) applications.
- Figure 1 also shows, as comparison, the electrical resistivity as function of applied electrical field for a material comprising EPDM rubber and 25 vol % pure ZnO particles with an average diameter of 53 nm, curve B. In this case, where no carbon black is added, an insulating material without field grading properties is obtained within the electric field of interest, 0.1-8 kV/ ⁇ n ⁇ n.
- Figure 2 shows an example of the distribution of pure zinc oxide and the carbon black in the EPDM matrix of the electric field grading material according to curve A in figure 1.
- the carbon black and pure zinc oxide are distributed in the form of aggregates, or a network, and when the electrical field is sufficiently high for the resistivity to become non-linear the ZnO particles conduct current and the aggregates, or network, forms conducting paths in the polymer matrix.
- the polymeric matrix of the field grading material according to the present invention suitably consists, or at least essentially consists, of rubber, thermoplastics or a thermoplastic elastomer. It is preferred that the matrix consists, or at least essentially consists, of polyolefin rubber or thermoplastic polyolefin elastomer/plastomer, preferably including EPDM rubber, silicone rubber or EVA (Ethylene Vinyl Acetate) , or of semi-crystalline thermoplastics, preferably polyethylene or cross-linked polyethylene (PEX) .
- a field grading material according to the invention is particularly suitable for use in an electric field control device for grading an electric field in medium or high voltage applications.
- Figure 3 schematically shows a cable joint comprising such an electric field control device 7.
- the cable joint 1 comprises a conductor 2 and cable insulation 3.
- the cable usually comprises an inner conducting layer (not shown) arranged between the conductor and the insulation, and an outer conducting layer 4 arranged outside and surrounding the insulation.
- the insulation 3 and conducting layer (s) 4 is cut off for a distance and the two conductor ends is connected with a metallic cable sleeve 5.
- the sleeve is surrounded by a deflector 6 of conducting rubber.
- An electric field control device 7 comprising a field grading material according to the invention is arranged over the end of the outer conductive layer 4 to achieve a uniformly distributed electric field in the cable insulation 3. Outside the field grading material there is provided a second insulation layer 8.
- a semi-conducting layer 9 with a grounded screen 10 that is in contact with the grounded outer conducting layer 4 of the cable is arranged around the field control layer 7 and the second insulation layer 8
- the field grading material may be used in a cable termination or other electrical equipment where it is suitable to use a field grading material.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07852215A EP2095376A4 (fr) | 2006-12-20 | 2007-12-05 | Matériau de transformation de champ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0602789A SE531409C2 (sv) | 2006-12-20 | 2006-12-20 | Fältstyrande material |
SE0602789-0 | 2006-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008076058A1 true WO2008076058A1 (fr) | 2008-06-26 |
Family
ID=39536563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2007/050943 WO2008076058A1 (fr) | 2006-12-20 | 2007-12-05 | Matériau de transformation de champ |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2095376A4 (fr) |
CN (1) | CN101563734A (fr) |
SE (1) | SE531409C2 (fr) |
WO (1) | WO2008076058A1 (fr) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2197080A1 (fr) * | 2008-12-09 | 2010-06-16 | ABB Research Ltd. | Joint flexible avec materiau résistive de transformation d'un champ électrique pour câbles à courant continu à haute tension et méthode pour la connexion de ces câbles |
EP2276040A1 (fr) | 2009-07-15 | 2011-01-19 | ABB Research Ltd. | Dispositif pour connexion électrique, procédé de production d'un tel dispositif, et installation électrique |
EP2362407A1 (fr) | 2010-02-23 | 2011-08-31 | ABB Research Ltd. | Düse für einen Leistungsschalter und Leistungsschalter mit einer solchen Düse |
WO2011144254A2 (fr) * | 2010-05-21 | 2011-11-24 | Abb Research Ltd | Appareil de terminaison de câble à courant continu haute tension |
WO2011144252A2 (fr) * | 2010-05-21 | 2011-11-24 | Abb Research Ltd | Appareil de terminaison de câble pour courant continu à haute tension |
EP2639264A1 (fr) * | 2012-03-14 | 2013-09-18 | Nexans | Matériau de calibrage de champs |
WO2013004748A3 (fr) * | 2011-07-05 | 2013-11-07 | Abb Research Ltd | Dispositif pour régulation de champ électrique |
US8609987B2 (en) | 2010-05-21 | 2013-12-17 | Abb Research Ltd. | High voltage direct current cable termination apparatus |
US8946552B2 (en) | 2010-05-21 | 2015-02-03 | Abb Research Ltd. | High voltage direct current cable termination apparatus |
EP2742098A4 (fr) * | 2011-09-01 | 2015-07-08 | Rensselaer Polytech Inst | Polymère d'oxyde de graphène avec résistivité non linéaire |
US9306340B2 (en) | 2013-12-13 | 2016-04-05 | General Electric Company | System and method for sub-sea cable termination |
EP3034561A1 (fr) * | 2014-12-19 | 2016-06-22 | ABB Technology AG | Procédé de fabrication d'un joint de câble CC à haute tension et joint de câble CC à haute tension |
WO2016110570A1 (fr) * | 2015-01-09 | 2016-07-14 | Momentive Performance Materials Gmbh | Utilisation d'une composition de caoutchouc de silicone pour la fabrication d'un isolant pour applications à courant continu haute tension |
WO2017174954A1 (fr) | 2016-04-08 | 2017-10-12 | Supergrid Institute | Nouveau matériau d'isolation électrique |
WO2018051171A1 (fr) * | 2016-09-19 | 2018-03-22 | Prysmian S.P.A. | Jonction pour câbles à courant continu à haute tension |
WO2018091941A1 (fr) | 2016-11-15 | 2018-05-24 | Prysmian S.P.A. | Matériau de gradation de champ électrique et son utilisation dans des accessoires de câble électrique |
WO2018207003A1 (fr) * | 2017-05-11 | 2018-11-15 | Prysmian S.P.A. | Système de terminaisons de câble, ensemble de terminaisons et procédé d'installation d'un tel ensemble de terminaisons |
US11476614B2 (en) | 2017-05-11 | 2022-10-18 | Prysmian S.P.A. | Cable termination system, termination assembly and method for installing such a termination assembly |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2337070A1 (fr) * | 2009-12-17 | 2011-06-22 | ABB Technology AG | Dispositif électronique doté d'une évaluation du champ résistif non linéaire et son procédé de fabrication |
CN106159868B (zh) * | 2016-08-03 | 2018-04-10 | 清华大学 | 采用非线性预制橡胶应力锥的交流电缆端头 |
EP3642923A1 (fr) * | 2017-06-23 | 2020-04-29 | Merck Patent GmbH | Garniture de câble pour câble de liaison à haute tension continue |
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US4363842A (en) * | 1981-03-02 | 1982-12-14 | Minnesota Mining And Manufacturing Company | Elastomeric pre-stretched tubes for providing electrical stress control |
US4458103A (en) * | 1982-03-10 | 1984-07-03 | The Furukawa Electric Co., Ltd. | Insulating joint for rubber or plastic insulated power cable |
US4551915A (en) * | 1983-04-06 | 1985-11-12 | Raychem Corporation | Method for terminating a high voltage cable |
US4738318A (en) * | 1983-02-08 | 1988-04-19 | Raychem Gmbh | Electrical stress control |
EP0683557A1 (fr) * | 1994-05-19 | 1995-11-22 | PIRELLI CAVI S.p.A. | Procédé de fabrication de manchons en elastomère pour recouvrir des connections de câbles électriques et un tel manchon |
WO2004038735A1 (fr) * | 2002-10-22 | 2004-05-06 | Abb Research Ltd | Materiau de transformation d'un champ electrique |
US20050256240A1 (en) * | 2002-10-04 | 2005-11-17 | Rensselaer Polytechnic Institute | Nanometric composites as improved dielectric structures |
Family Cites Families (1)
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- 2007-12-05 EP EP07852215A patent/EP2095376A4/fr not_active Withdrawn
- 2007-12-05 CN CNA2007800471012A patent/CN101563734A/zh active Pending
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CN101902024A (zh) * | 2008-12-09 | 2010-12-01 | Abb研究有限公司 | 用于hvdc缆线的具有阻性场分级材料的柔性接头及其与hvdc缆线连接的方法 |
EP2197080A1 (fr) * | 2008-12-09 | 2010-06-16 | ABB Research Ltd. | Joint flexible avec materiau résistive de transformation d'un champ électrique pour câbles à courant continu à haute tension et méthode pour la connexion de ces câbles |
US8578602B2 (en) | 2008-12-09 | 2013-11-12 | Abb Research Ltd | Method of forming a flexible joint with resistive field grading material for HVDC cables |
US8366484B2 (en) | 2009-07-15 | 2013-02-05 | Abb Research Ltd. | Device for electric connection, a method for producing such a device, and an electric installation |
EP2276040A1 (fr) | 2009-07-15 | 2011-01-19 | ABB Research Ltd. | Dispositif pour connexion électrique, procédé de production d'un tel dispositif, et installation électrique |
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WO2011144252A3 (fr) * | 2010-05-21 | 2012-05-03 | Abb Research Ltd | Appareil de terminaison de câble pour courant continu à haute tension |
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EP2742098A4 (fr) * | 2011-09-01 | 2015-07-08 | Rensselaer Polytech Inst | Polymère d'oxyde de graphène avec résistivité non linéaire |
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JP2018503346A (ja) * | 2014-12-19 | 2018-02-01 | エヌケーティー エイチブイ ケーブルズ ゲーエムべーハー | 高電圧dcケーブル継手を製造する方法、および高電圧dcケーブル継手 |
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Also Published As
Publication number | Publication date |
---|---|
EP2095376A1 (fr) | 2009-09-02 |
EP2095376A4 (fr) | 2010-09-15 |
SE0602789L (sv) | 2008-06-21 |
CN101563734A (zh) | 2009-10-21 |
SE531409C2 (sv) | 2009-03-24 |
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