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WO2011138413A2 - Matériau d'isolation électrique et bande d'isolation pour une isolation électrique d'une moyenne tension/haute tension - Google Patents

Matériau d'isolation électrique et bande d'isolation pour une isolation électrique d'une moyenne tension/haute tension Download PDF

Info

Publication number
WO2011138413A2
WO2011138413A2 PCT/EP2011/057240 EP2011057240W WO2011138413A2 WO 2011138413 A2 WO2011138413 A2 WO 2011138413A2 EP 2011057240 W EP2011057240 W EP 2011057240W WO 2011138413 A2 WO2011138413 A2 WO 2011138413A2
Authority
WO
WIPO (PCT)
Prior art keywords
insulation
filler
material according
insulation material
medium
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.)
Ceased
Application number
PCT/EP2011/057240
Other languages
German (de)
English (en)
Other versions
WO2011138413A3 (fr
Inventor
Andre Gruebel
Peter GRÖPPEL
Matthias ÜBLER
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2011138413A2 publication Critical patent/WO2011138413A2/fr
Publication of WO2011138413A3 publication Critical patent/WO2011138413A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/40—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes epoxy resins
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/549—Silicon-containing compounds containing silicon in a ring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the invention relates to an electrical insulation material for electrical insulation of a medium and high voltage and an insulation tape, which is made of the insulating material Herge ⁇ is and is suitable for electrical insulation of a medium / high voltage rotary machine.
  • a turbo generator in a power plant to generate electrical energy For a medium / high voltage rotary machine, as in ⁇ example, a turbo generator in a power plant to generate electrical energy, a high efficiency and high availability are required. This usually results in a high mechanical, thermal and electrical stress on the components of the turbogenerator.
  • the Turboge ⁇ erator in particular has a stator winding with respect to strength and supply reliability is set at a particularly high requirement.
  • Stator winding is high by partial discharges that occur continuously during operation of the medium / high voltage rotary machine.
  • insulation electrical conductors wires, coils, rods, sub-conductors
  • an improvement in the electrical properties of insulating materials and systems provide achievable by, for example, an increase in the proportion of fine mica in ⁇ nergur of high voltage insulation, which is difficult to implement, however, because of conflicting technical constraints.
  • the conventional insulation of conductors by means of a mica tape winding leads to inhomogeneities due to the winding process at edges and radii of the conductors. As a result, local field peaks occur at the edges and radii, which can lead to a premature failure of the insulation under the influence of high voltage due to partial discharges.
  • the resin / hardener system bisphenol A diglycidyl ether / acid anhydride
  • the resin / hardener system has only sufficient resistance to partial discharges, which may arise due to a possibly faulty mica tape wrapping and winding-related resulting cavities.
  • the cavities are filled in the insulation, which would otherwise lead to internal gas-solid interfaces and weaken the electrical strength of Iso ⁇ lation due to partial discharges.
  • an increase in the insulation layer thickness is conceivable, which, however, has disadvantages due to a reduced heat dissipation from the conductors and thus a reduced efficiency of the medium / high-voltage rotary machine.
  • the use of nanoparticulate fillers is known.
  • the object of the invention is to provide an electrical Isolationsma ⁇ material for electrical insulation of a medium and high ⁇ voltage, the insulation material has a high electrical aging resistance.
  • the electrical insulation material according to the invention for an electrical insulation of a medium and high voltage has a base resin which is mixed with polyhedral oligomeric silsesquioxane. Furthermore, the insulation tape according to the invention for a medium / high voltage rotary machine is made of the insulating material.
  • the polyhedral oligomeric silsesquioxane as filler powder is preferably uniformly distributed in the base resin, wherein the filler powder particles of the polyhedral oligomeric silsesquioxane R (SiOi, s) n has.
  • the filler is preferably either alterna tive ⁇ preferably with at least one other filler in the only filler, or Base resin provided. If the insulating material is provided with at least one other filler in the base resin, it is preferred that the other filler has makrosko ⁇ pisch scaled particles, which are in particular mica, Bromnitrid, alumina and / or silica.
  • the other filler has nanoparticles which are in particular of titanium oxide, aluminum oxide, silicon nitride and / or silicon oxide. It is also preferred that the other filler is formed from an organically modified, flaky sheet silicate, which is made into a self-organizing, inorganic / organic hybrid system with an aspect ratio of 100-1000 nm at a thickness of about 1 nm.
  • the base resin is preferably made of epoxy resin, polyester, polyurethane and / or silicone.
  • the base resin may be provided for impregnating the insulating tape, wherein the base resin is preferably made of epoxy resin, polyester, polyurethane and / or silicone.
  • the base resin is provided with the polyhedral oligomeric silsesquioxane (POSS), which can be present in both the solid and / or liquid state.
  • the polyhedral oligomeric silsesquioxane is a siloxane having the general empirical formula R (SiOi, 5) n and is provided in the base resin as a filler, additive and / or additive.
  • the polyhedral oligomeric silsesquioxane has an advantageous structure and advantageous chemical properties, whereby the aging resistance of the insulating material is achieved due to a high Generalentladungs ⁇ resistance.
  • the electrical resistance to aging ⁇ permanence of the insulating bands is achieved by the inventions to the invention insulation material that is used for the elekt ⁇ innovative isolation of a motor and a generator in the high- and medium-voltage range.
  • the polyhedral oligomeric Silses ⁇ quioxan depending on the rest (R) in solid, highly viscous or low-viscosity form, wherein the polyhedral oligomeric Silses ⁇ quioxan advantageously has a high specific surface area.
  • the Molecules of the polyhedral oligomeric silsesquioxane can be used singularly as the filler in the base resin or in combination with the macroscopic filler such as mica, bromine nitride, alumina, silica, but also in combination with the nanoparticles based on titanium oxide, aluminum oxide, silicon nitride, and / or Silica, but also in combination with the organically modified, platelike phyllosilicate.
  • the organically modified platelet-shaped phyllosilicate can be converted by means of a suitable process to the self-organizing, inorganic / organic hybrid system with an aspect ratio of 100-1000 nm, at a thickness of about 1 nm.
  • the insulation material according to the invention has a high resistance in the case of partial discharges occurring during operation.
  • the achieved high electrical strength of the Isolationsmate ⁇ rials it is possible to choose the layer thickness of the insulating tape according to the invention smaller compared with a conventional insulation tape.
  • the high electrical strength of the insulating material achieved in accordance with the invention enables the operating voltage of the conductor to be selected to be higher compared with an operating voltage which is customary for a conventionally insulated conductor.
  • the efficiency of a medium / high voltage rotary machine in which he ⁇ inventive isolation tape is used high.
  • the electrical resistance of the insulating material is high. This effect is due to the high electrical discharge resistance of the POSS molecules. Furthermore, it is advantageous in the insulating material according to the invention to form an sion channels between two under tension and electrically coupled to the insulating material electrodes difficult, with an occurrence of voids, stress cracks and / or delaminations in the insulating material is difficult.
  • Figure 2 is a cross-sectional detail through a conductor which is electrically isolated from the inventive insulation tape.
  • FIG. 1 shows the structure of the polyhedral oligomeric silsesquioxane having the general molecular formula R (SIOI f s) is shows n ge ⁇ .
  • FIG. 2 shows a conductor bar 1 which is provided with an external glow protection 2, an end corona protection 3 and an insulating strip 4. The conductor rod 1 is wound around the insulating tape ⁇ 4 for electrical insulation and is made of an insulating material.
  • the conductor bar 1 is made of copper and has a non-wound cross-section of 10 ⁇ 30 mm 2 .
  • the edge radius of the conductor bar 1 is 1 mm.
  • the length of the conductor bar 4 is 360 mm.
  • the insulation tape is 4-ply, wound crosswise and manually with 45% ⁇ 3% overlap around the conductor bar 1.
  • the insulation layer thickness achieved thereby with the insulation band 4 around the conductor bar 1 is 1.15 mm.
  • the conductor bar 4 is high-voltage insulated with the insulation band 4, the external corona shielding 2 and the end corona protection 3.
  • the insulating tape 4 is (VPI process) with a vacuum pressure process, wherein the underlying mitbe ⁇ conditions in Table 1 are indicated.
  • Table 1 Process conditions for the VPI process
  • the insulating material is formed of an epoxy resin as a base ⁇ resin, a curing agent, the addition polyhedrales oligomeric Sil sesquioxan (POSS), nanoparticles, and an accelerator.
  • the insulating material is formed by the epoxy resin and the POSS.
  • the nanoparticles are added to the isolati ⁇ onsmaterial depending on the example.
  • Example 1 relates to a conventional insulating material, whereas Examples 2 to 5 relate to the insulating material according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Organic Insulating Materials (AREA)
  • Insulating Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

L'invention concerne un matériau d'isolation électrique pour une isolation électrique d'une moyenne tension/haute tension, contenant une résine de base mélangée à du silsesquioxane oligomère polyhédrique. L'invention concerne également une bande d'isolation pour une machine rotative moyenne tension/haute tension, fabriquée à partir du matériau d'isolation.
PCT/EP2011/057240 2010-05-07 2011-05-05 Matériau d'isolation électrique et bande d'isolation pour une isolation électrique d'une moyenne tension/haute tension Ceased WO2011138413A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010019724 DE102010019724A1 (de) 2010-05-07 2010-05-07 Elektrisches Isolationsmaterial und Isolationsband für eine elektrische Isolation einer Mittel- und Hochspannung
DE102010019724.6 2010-05-07

Publications (2)

Publication Number Publication Date
WO2011138413A2 true WO2011138413A2 (fr) 2011-11-10
WO2011138413A3 WO2011138413A3 (fr) 2012-01-05

Family

ID=44626476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/057240 Ceased WO2011138413A2 (fr) 2010-05-07 2011-05-05 Matériau d'isolation électrique et bande d'isolation pour une isolation électrique d'une moyenne tension/haute tension

Country Status (2)

Country Link
DE (1) DE102010019724A1 (fr)
WO (1) WO2011138413A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2712462A1 (fr) * 2011-09-22 2014-04-02 Siemens Aktiengesellschaft Systèmes isolants à tenue améliorée aux décharges partielles et procédé de fabrication desdits systèmes isolants
WO2016046479A1 (fr) * 2014-09-26 2016-03-31 Nexans Dispositif électrique comprenant une couche réticulée
CN110744881A (zh) * 2019-10-11 2020-02-04 明冠新材料股份有限公司 一种含有poss改性聚合物的光伏组件封装膜
CN111133661A (zh) * 2017-09-20 2020-05-08 西门子股份公司 用于中压和/或高压机器的缠绕带绝缘的电绝缘材料和/或浸渍树脂以及由其制成的绝缘体系
US20200220409A1 (en) * 2017-09-20 2020-07-09 Siemens Aktiengesellschaft Electrical Insulation Material and/or Impregnation Resin for a Wrapping Tape Insulation for Electrical Machines
WO2023170112A1 (fr) * 2022-03-08 2023-09-14 Siemens Aktiengesellschaft Isolation de sous-conducteur et composite de sous-conducteur d'une machine tournante électrique
CN116964164A (zh) * 2021-02-22 2023-10-27 西门子股份公司 用于旋转电机的绝缘系统及其制造方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012207535A1 (de) * 2012-05-07 2013-11-07 Siemens Aktiengesellschaft Isolierband-Material, Verfahren zur Herstellung und Verwendung dazu
DE102014211122A1 (de) * 2014-06-11 2015-12-17 Siemens Aktiengesellschaft Elektrisch definiert leitfähiges Multifunktionsband, Verfahren zur Herstellung und Verwendung dazu
DE102014219765A1 (de) * 2014-09-30 2016-03-31 Siemens Aktiengesellschaft Formulierung für ein Isoliersystem und Isoliersystem
DE102015010669A1 (de) * 2015-08-14 2017-02-16 Stephan Matthies Vergussmasse mit Füllstoffen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001189109A (ja) * 2000-01-05 2001-07-10 Sumitomo Bakelite Co Ltd 絶縁材用樹脂組成物およびこれを用いた絶縁材
US20050277349A1 (en) * 2004-06-15 2005-12-15 Siemens Westinghouse Power Corporation High thermal conductivity materials incorporated into resins
US8030818B2 (en) * 2004-06-15 2011-10-04 Siemens Energy, Inc. Stator coil with improved heat dissipation
US7781057B2 (en) * 2005-06-14 2010-08-24 Siemens Energy, Inc. Seeding resins for enhancing the crystallinity of polymeric substructures
JP2008195741A (ja) * 2007-02-08 2008-08-28 Asahi Kasei Chemicals Corp 電気絶縁用ポリフェニレンエーテル系樹脂フィルム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2712462A1 (fr) * 2011-09-22 2014-04-02 Siemens Aktiengesellschaft Systèmes isolants à tenue améliorée aux décharges partielles et procédé de fabrication desdits systèmes isolants
WO2016046479A1 (fr) * 2014-09-26 2016-03-31 Nexans Dispositif électrique comprenant une couche réticulée
FR3026547A1 (fr) * 2014-09-26 2016-04-01 Nexans Dispositif electrique comprenant une couche reticulee
KR20170061153A (ko) * 2014-09-26 2017-06-02 넥쌍 가교된 층을 포함하는 전기 장치
CN111133661A (zh) * 2017-09-20 2020-05-08 西门子股份公司 用于中压和/或高压机器的缠绕带绝缘的电绝缘材料和/或浸渍树脂以及由其制成的绝缘体系
US20200220409A1 (en) * 2017-09-20 2020-07-09 Siemens Aktiengesellschaft Electrical Insulation Material and/or Impregnation Resin for a Wrapping Tape Insulation for Electrical Machines
CN111133661B (zh) * 2017-09-20 2023-11-17 西门子股份公司 浸渍树脂以及由其制成的绝缘体系
CN110744881A (zh) * 2019-10-11 2020-02-04 明冠新材料股份有限公司 一种含有poss改性聚合物的光伏组件封装膜
CN116964164A (zh) * 2021-02-22 2023-10-27 西门子股份公司 用于旋转电机的绝缘系统及其制造方法
WO2023170112A1 (fr) * 2022-03-08 2023-09-14 Siemens Aktiengesellschaft Isolation de sous-conducteur et composite de sous-conducteur d'une machine tournante électrique

Also Published As

Publication number Publication date
DE102010019724A1 (de) 2011-11-10
WO2011138413A3 (fr) 2012-01-05

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