EP1091365A1 - Procédé de fabrication d'un isolateur composite creux et isolateur composite creux - Google Patents

Procédé de fabrication d'un isolateur composite creux et isolateur composite creux Download PDF

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Publication number
EP1091365A1
EP1091365A1 EP99119832A EP99119832A EP1091365A1 EP 1091365 A1 EP1091365 A1 EP 1091365A1 EP 99119832 A EP99119832 A EP 99119832A EP 99119832 A EP99119832 A EP 99119832A EP 1091365 A1 EP1091365 A1 EP 1091365A1
Authority
EP
European Patent Office
Prior art keywords
tube
silicone rubber
plastic
htv
shield
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
Application number
EP99119832A
Other languages
German (de)
English (en)
Other versions
EP1091365B1 (fr
Inventor
Joachim Pimper
Rainer F. Röder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Axicom AG
Original Assignee
Cellpack AG
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 Cellpack AG filed Critical Cellpack AG
Priority to EP99119832A priority Critical patent/EP1091365B1/fr
Priority to AT99119832T priority patent/ATE308106T1/de
Priority to DE59912714T priority patent/DE59912714D1/de
Publication of EP1091365A1 publication Critical patent/EP1091365A1/fr
Application granted granted Critical
Publication of EP1091365B1 publication Critical patent/EP1091365B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies

Definitions

  • the invention relates to a method for manufacturing a hollow composite insulator for medium and High voltage, in which a plastic tube, in particular a glass fiber reinforced epoxy tube, with a shield is made of silicone. Furthermore, the Invention a hollow composite insulator, in which a Plastic pipe, especially a glass fiber reinforced Epoxy tube with a silicone shield is.
  • the RTV silicone rubber components can be poured or injected into the shape surrounding the tube, which determines the shape of the shielding, due to the liquid RTV silicone rubber components, with low pressure, and the polymerization takes place at room temperature or with only a small amount of heat, so that there is no risk that the properties of the plastic tube, which is generally a glass fiber reinforced epoxy tube, which are decisive for the insulator, are impaired by the process of applying the shielding.
  • a disadvantage of this manufacturing process is the long vulcanization time or the long time until demolding.
  • the application of the finished, cooled parts to the pipe is labor-intensive and the shielding, which is composed of several parts or the shielding with joints, harbors the risk of leaks, so that, in addition to the extension of the leakage current path, the shielding has another important function as protection of the It is not as safe to ensure that the isolator is protected against moisture as with a pipe that is directly cast or molded.
  • the invention is based on the object Manufacturing process for a hollow insulator with a silicone rubber shield to create which is simple and can be carried out quickly and therefore inexpensively.
  • This task is carried out in a process for Production of a hollow composite insulator at the beginning mentioned type solved in that the silicone rubber shield by injection molding of hot vulcanizing Silicone rubber is formed, at least during part of the injection molding process at least one area of the plastic pipe against the pressure of the silicone rubber material is supported.
  • the pressure sensitive Plastic pipe when injecting the HTV silicone rubber against harmful pressure or combined pressure and temperature influences are protected.
  • the plastic pipe is overmoulded all over Supported length, preferably by a metal tube, which inserted into the plastic tube with little play and is removed again after the spraying process.
  • HTV silicone rubber is also used, whose vulcanization temperature is below the softening temperature of the plastic or epoxy tube is and is preferably at most about 130 ° C.
  • the invention is further based on the object to create a hollow composite insulator that with at least as good properties as the known ones Composite insulators with RTV silicone rubber cast or Injection molding shield, quicker and cheaper to manufacture is.
  • the composite insulator has an HTV silicone rubber shield it is faster and thus less expensive to manufacture, because on the one hand that HTV raw material is cheaper and on the other hand as a result the very short vulcanization time a high production rate is possible.
  • Figure 1 shows schematically a hollow composite insulator 1 in vertical cross section.
  • the composite insulator has a support tube 2, which is usually a glass fiber reinforced epoxy tube.
  • the tube 2 is in usually on both sides with metal fasteners 3 and 4, which e.g. are made of aluminum can and forms the cavity 7 of the insulator.
  • a shield 5 which is made of a silicone rubber material is formed. This shield extended the leakage current path between the fasteners 3 and 4 and serves in particular as a hydrophobic Protection against moisture.
  • the roughly shown schematically Composite insulator 1 is only an example of a special embodiment of such an insulator shown.
  • the insulator 1 could also have one held therein
  • Conductor 6 can be configured as shown in FIG.
  • Such isolators can come in various sizes and designs and for the most diverse electrical medium and High-voltage systems, which, as is known, is not continued here. Under middle and In the present case, high voltages are said to be electrical voltages of greater than approx. 1000 volts can be understood.
  • the shape of the shield 5 can be very different and is wavy in section here only as an example shown.
  • a shield 5 made of RTV silicone rubber material Its two components are transformed into one Cast mold that surrounds the epoxy tube 2 and the RTV silicone rubber material crosslinks at room temperature and possibly a small amount of heat, e.g. within an hour.
  • FIG. 2 shows that already provided with the flanges 3 and 4 glass fiber reinforced epoxy tube 2 of an insulator according to Figure 1, which tube with the flanges in the lower part 8th an injection mold is arranged.
  • the upper half of the mold 8 ' is only partially indicated in FIG. 2 but corresponding to the lower half 8 in the figure Cover the upper area of pipe 2 and flanges 3 and 4.
  • the shape 8, 8 ' forms a around the tube 2 Cavity 9, which is to be applied in its shape Shielding 5 corresponds.
  • the epoxy tube 2 is at least partially supported to the necessary for injection molding with HTV silicone rubber material withstand high pressures.
  • FIG. 2 shows that the tube 10 is only part of the length of the Tube 2 covers, in the example shown essentially only the parts that are not covered by the flanges are.
  • the tube 10 could also be longer and e.g. still have a section 11, which in the Figure 2 is shown with broken lines, wherein this section extends to the left end in the figure of the tube 2 extends.
  • a portion 12 of the metal tube 10 could be provided be, which extends all the way to the back.
  • the Pipe 10 could also be provided with a flange 13, which would then also be embedded in the form 8, 8 '.
  • the tube 10 preferably has a complete outer surface and lies with this on the inner surface of the tube 2nd on, but there may also be recesses in the tube 10 be so that the epoxy tube is only partially supported becomes.
  • the tube 2 is now known Way in an injection molding machine by not shown Openings in the closed, so with both Halved form the HTV silicone rubber material introduced under high pressure into the cavity 9 of the mold.
  • the injection pressure can e.g. in the range of 300 - 1,000 bar, which for pipe 2 thanks to the support 10 there is no risk of a defect.
  • the used HTV silicone rubber material is a commercially available material but which is selected so that the vulcanization temperature low, e.g. In the range of 100 ° C to 160 ° C.
  • Preferred is e.g. an HTV silicone rubber material from Wacker Chemie, with the designation Powersil 310, which has a vulcanization temperature of approx. 130 ° C.
  • the vulcanization temperature of the HTV material can of course be different selected as 130 ° C, but is for HTV materials usually higher than 100 ° C and, as I said, should Safety distance from the softening temperature of the Plastic tube or epoxy tube 2 or to that for the Pipe 2 is considered a permissible temperature of e.g. 180 ° C adhere.
  • the injection molding process is otherwise different not from known injection molding processes.
  • the Form 8, 8 'can be heated to a uniform and to result in rapid vulcanization.
  • An insulator shield 5 can be completed in this way within a few minutes and the insulator are removed from the mold become.
  • the tube 10 After removal from the mold, the tube 10 removed from the isolator and this is for further processing ready.
  • the support tube 10 can be in the next Epoxy tube 2 are inserted, which then in the Mold is introduced, followed by another injection molding process can take place.
  • the injection mold can thus immediately can be used again without a long wait.
  • the shape of the Insulator 1 to be understood only as an example.
  • the isolator could also have a conductor 6, as in FIG. 1, for which corresponding in the two mold halves 8, 8 ' Recesses must be provided.
  • Figure 3 shows an example roughly schematically a glass fiber reinforced epoxy tube 2, which in turn is provided with flanges 3 and 4, and with its front part embedded in the mold halves 8 and 8 ' is.
  • the resulting insulator 1 is included a conductor 6 equipped.
  • the cavity 9 in the mold halves 8 and 8 ' is explained with HTV material below filled with high pressure. This way the front one Half of the tube 2 provided with the shield 5, which after demolding in Figure 4 can be seen. With two further mold halves 18 and 18 'with the cavity 19 4 then becomes the rear part of the shield 5 added.
  • the number of injection molding steps is included not limited to two, but can still include more steps.

Landscapes

  • Insulating Bodies (AREA)
  • Insulators (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Glass Compositions (AREA)
EP99119832A 1999-10-07 1999-10-07 Procédé de fabrication d'un isolateur composite creux Expired - Lifetime EP1091365B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99119832A EP1091365B1 (fr) 1999-10-07 1999-10-07 Procédé de fabrication d'un isolateur composite creux
AT99119832T ATE308106T1 (de) 1999-10-07 1999-10-07 Verfahren zur herstellung eines hohlen verbundisolators
DE59912714T DE59912714D1 (de) 1999-10-07 1999-10-07 Verfahren zur Herstellung eines hohlen Verbundisolators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99119832A EP1091365B1 (fr) 1999-10-07 1999-10-07 Procédé de fabrication d'un isolateur composite creux

Publications (2)

Publication Number Publication Date
EP1091365A1 true EP1091365A1 (fr) 2001-04-11
EP1091365B1 EP1091365B1 (fr) 2005-10-26

Family

ID=8239131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99119832A Expired - Lifetime EP1091365B1 (fr) 1999-10-07 1999-10-07 Procédé de fabrication d'un isolateur composite creux

Country Status (3)

Country Link
EP (1) EP1091365B1 (fr)
AT (1) ATE308106T1 (fr)
DE (1) DE59912714D1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1667175A1 (fr) * 2003-09-11 2006-06-07 MA, Bin Isolateur creux compose et son procede de fabrication
US7989704B2 (en) 2005-07-20 2011-08-02 Areva T&D Sa Electric insulator and a method for the production thereof
DE102010050684A1 (de) 2010-11-06 2012-05-10 Reinhausen Power Composites Gmbh Hochspannungsisolator
US20130025912A1 (en) * 2010-04-21 2013-01-31 Roland Hoefner High-voltage insulator
DE102011088248A1 (de) 2011-12-12 2013-06-13 Wacker Chemie Ag Verfahren zur Herstellung von Verbundisolatoren
DE102014004284A1 (de) * 2014-03-26 2015-10-01 Lapp Insulators Gmbh Hochspannungsdurchführung
WO2017108141A1 (fr) * 2015-12-24 2017-06-29 General Electric Technology Gmbh Structure de support et agencement pour sectionneur hvdc
CN109698049A (zh) * 2018-12-29 2019-04-30 长园高能电气股份有限公司 一种新型复合绝缘子及其生产工艺
WO2020043452A1 (fr) 2018-08-30 2020-03-05 Siemens Aktiengesellschaft Matériel électrique et procédé de fabrication d'un matériel électrique
CN112117067A (zh) * 2020-10-12 2020-12-22 中国南方电网有限责任公司超高压输电公司贵阳局 一种安装法兰绝缘结构一体式空心复合绝缘子及制造方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016205673A1 (de) 2016-04-06 2017-10-12 Siemens Aktiengesellschaft Hohlisolator und Verfahren zu dessen Herstellung
DE102016217621A1 (de) 2016-09-15 2018-03-15 Siemens Aktiengesellschaft Herstellungsverfahren für ein elektrisches Betriebsmittel, elektrisches Betriebsmittel und Herstellungsanordnung
CN107014692A (zh) * 2017-04-05 2017-08-04 中国南方电网有限责任公司超高压输电公司检修试验中心 一种空心复合绝缘子出厂试验评价方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643197B1 (de) * 1976-09-22 1977-11-24 Siemens Ag Verfahren,Silikonkautschukmasse und Formbenetzungsloesung zur Herstellung von Silikongummi-Formkoerpern
DE29609229U1 (de) * 1995-06-01 1996-08-14 Cellpack Ag, Wohlen Isolator für Hochspannungsleitungen
DE19738338A1 (de) * 1996-09-11 1998-03-12 Ngk Insulators Ltd Verfahren und Gerät zur Formung eines hohlen Verbundisolators

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643197B1 (de) * 1976-09-22 1977-11-24 Siemens Ag Verfahren,Silikonkautschukmasse und Formbenetzungsloesung zur Herstellung von Silikongummi-Formkoerpern
DE29609229U1 (de) * 1995-06-01 1996-08-14 Cellpack Ag, Wohlen Isolator für Hochspannungsleitungen
DE19738338A1 (de) * 1996-09-11 1998-03-12 Ngk Insulators Ltd Verfahren und Gerät zur Formung eines hohlen Verbundisolators

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1667175A1 (fr) * 2003-09-11 2006-06-07 MA, Bin Isolateur creux compose et son procede de fabrication
EP1667175B1 (fr) * 2003-09-11 2013-04-24 Jiangsu Shenma Electric Co., Ltd. Isolateur creux compose et son procede de fabrication
US7989704B2 (en) 2005-07-20 2011-08-02 Areva T&D Sa Electric insulator and a method for the production thereof
US20130025912A1 (en) * 2010-04-21 2013-01-31 Roland Hoefner High-voltage insulator
US9601240B2 (en) 2010-04-21 2017-03-21 Maschinenfabrik Reinhausen Gmbh High-voltage insulator
DE102010050684A1 (de) 2010-11-06 2012-05-10 Reinhausen Power Composites Gmbh Hochspannungsisolator
WO2012059198A1 (fr) 2010-11-06 2012-05-10 Reinhausen Power Composites Gmbh Isolateur haute tension comportant un dispositif de surveillance
EP2791948B1 (fr) 2011-12-12 2015-08-26 Wacker Chemie AG Procédé de fabrication d'isolateurs composites au moyen d'une réticulation par uv de caoutchouc de silicone
WO2013087414A1 (fr) 2011-12-12 2013-06-20 Wacker Chemie Ag Procédé de fabrication d'isolateurs composites au moyen d'une réticulation par uv de caoutchouc de silicone
US9236164B2 (en) 2011-12-12 2016-01-12 Wacker Chemie Ag Method for producing composite insulators by UV-crosslinking silicone rubber
DE102011088248A1 (de) 2011-12-12 2013-06-13 Wacker Chemie Ag Verfahren zur Herstellung von Verbundisolatoren
DE102014004284A1 (de) * 2014-03-26 2015-10-01 Lapp Insulators Gmbh Hochspannungsdurchführung
DE102014004284B4 (de) * 2014-03-26 2019-11-14 Lapp Insulators Gmbh Hochspannungsdurchführung
WO2017108141A1 (fr) * 2015-12-24 2017-06-29 General Electric Technology Gmbh Structure de support et agencement pour sectionneur hvdc
EP3394863A1 (fr) * 2015-12-24 2018-10-31 General Electric Technology GmbH Structure de support et agencement pour sectionneur hvdc
WO2020043452A1 (fr) 2018-08-30 2020-03-05 Siemens Aktiengesellschaft Matériel électrique et procédé de fabrication d'un matériel électrique
US11636960B2 (en) 2018-08-30 2023-04-25 Siemens Energy Global GmbH & Co. KG Surge arrester and production method for a surge arrester
CN109698049A (zh) * 2018-12-29 2019-04-30 长园高能电气股份有限公司 一种新型复合绝缘子及其生产工艺
CN112117067A (zh) * 2020-10-12 2020-12-22 中国南方电网有限责任公司超高压输电公司贵阳局 一种安装法兰绝缘结构一体式空心复合绝缘子及制造方法

Also Published As

Publication number Publication date
DE59912714D1 (de) 2005-12-01
EP1091365B1 (fr) 2005-10-26
ATE308106T1 (de) 2005-11-15

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