WO2012156184A1 - Composant électrique - Google Patents

Composant électrique Download PDF

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Publication number
WO2012156184A1
WO2012156184A1 PCT/EP2012/057539 EP2012057539W WO2012156184A1 WO 2012156184 A1 WO2012156184 A1 WO 2012156184A1 EP 2012057539 W EP2012057539 W EP 2012057539W WO 2012156184 A1 WO2012156184 A1 WO 2012156184A1
Authority
WO
WIPO (PCT)
Prior art keywords
density
polymer
electrical component
component
electrical
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/EP2012/057539
Other languages
German (de)
English (en)
Inventor
Werner Hartmann
Sylvio Kosse
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 WO2012156184A1 publication Critical patent/WO2012156184A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches

Definitions

  • the invention relates to an electrical component according to the preamble of patent claim 1.
  • insulating media are required which must have a higher dielectric strength than the surrounding air.
  • voltage differences of up to 1000 kV must be controlled without partial discharge or corona discharges, which can lead to damage or even loss of insulation capability.
  • the isolation media should be sufficiently flexible.
  • they should also have no Treihausgaseigenschaften, have no ozone-depleting properties in the atmosphere and be non-toxic. Required the flammability properties of heavy remain bility of biodegradability in unwanted From ⁇ occurs and low specific costs relating to the volume to be filled.
  • Solid insulation For example, a suitable dielectric high-strength potting compound, such as filled epoxy resins.
  • a disadvantage here is that such solid insulation cause high costs. In addition, they often have a lack of Old ⁇ weathering resistance on, and the propensity to form at major Tempe ⁇ ture fluctuations column to the surrounding interfaces in which to partial discharges can form. Further disadvantages are the high density, and thus a large mass, which pulls a correspondingly high mechanical Anfor ⁇ alteration of the overall system by itself.
  • liquid insulating medium customary here are transformer oils from petrochemical production or from biologically produced oils, high-purity esters and silicone oils. Disadvantages here again are the high costs and the tendency, in particular in the case of some oils, to form conductive threads (eg carbon filaments) in continuous operation, which can impair the dielectric strength.
  • gaseous insulating media are still common, such as a mixture of SF 6 gas which is enriched for example with nitrogen and dry air, which also carbon dioxide and / or nitrogen and / or oxygen contained ⁇ th.
  • SF6 has excellent dielectric self ⁇ properties, its high global warming potential however, makes it more complicated to use this material as insulation material without this gas from entering the atmosphere and thus contributes to the greenhouse effect.
  • the object of the invention is therefore to provide a Isolati- onsmaterial for an electronic component rectifzustel ⁇ len, which enables a high dielectric strength while minimizing material costs and low equipment costs, without off at releasing of the isolation medium toxic substances or gases having a high global warming potential will give.
  • the object is achieved in an electrical component with the features of claim 1.
  • the electrical component according to claim 1 has an electrical functional space and an electrical insulation space and it is characterized in that the isolati- is at least partially filled with a dielectric comprising the following components:
  • liquid component which in turn contains a low-viscosity insulating liquid such as, for example, 1-diphenylethane and / or benzyl toluenes and
  • a solid component comprising a granulated polymer.
  • Both the liquid component and the solid component are configured such that a difference between ih ⁇ ren densities, so the density of the polymer and the density of the liquid component is less than 0.5 g / cm 3.
  • the particular advantage of the invention lies firstly in the combination of a liquid component and a finely divided granulated solid component, which makes it possible to fill even complex cavities of the insulation space without gaps, with no gaps or electrical transitions even with thermal expansions and other geometry changes. Due to its solid and liquid components, the insulating medium has a viscous property and is distributed in all cavities of the insulation space. Since ⁇ with a liquid dielectric is used on the one hand, the 1,1-diphenylethane and / or Benzyltoluene comprises substances which have a low density, are relatively inexpensive and have no negative greenhouse own sheep ⁇ th or hardly Toxticianen.
  • the density difference should therefore be less than 0.5 g / cm 3.
  • the density difference is preferably not more than 0.2 g / cm 3 , more preferably not less than 0.1 g / cm 3 , and most preferably not less than 0.05 g / cm 3 .
  • the properties of the dielectric can be further improved by paying attention to a suitable distribution of the particle diameter of the polymer.
  • the particle diameter distribution is advantageously between 10 .mu.m and 100 .mu.m, more than 80% of the particles being in this specified range. It has also been shown that in particular a broad Parti ⁇ kel malmesserver whatsoever with as uniform as possible many particles of each particle size is particularly suitable. This ensures that particles of different sizes A possible ⁇ lichst large packing density of the solid particles documentru ⁇ fen, whereby the share of low-cost solid in the dielectric - is increased - with consistently good fluid properties.
  • a suitable electrical component for the construction described is in particular a Hochwoodsschaltvorrich ⁇ device. Further preferred embodiments and further Merkma ⁇ le of the invention will be described in more detail with reference to the following figure. In this case, the described embodiment is merely an exemplary embodiment and does not constitute a restriction of the protective rights range.
  • the single figure shows a high-voltage switching device with a vacuum interrupter and a surround ⁇ this isolation space.
  • an electrical component 2 in the form of a high voltage switching device 10 is shown schematically.
  • the high voltage switch device 10 has a stationary terminal 12, which is ge to a vacuum interrupter 14 ⁇ leads and further includes a movable terminal 20.
  • the vacuum interrupter 14 is a wide area surrounded by a housing 16 which is grounded. Between the housing 16 and the Va ⁇ kuumschaltrheime 14 is an isolation space. 6
  • the insulation space 6 is filled with a dielectric 8, which on the one hand comprises a solid component in the form of polypropylene.
  • the polypropylene in turn has a finely divided grain size, with 80% of the particles of the polypropylene granules lying between 10 ⁇ m and 100 ⁇ m.
  • the United ⁇ distribution of the particle diameter a relatively flat curve, there are as few grain size accumulations vorlie ⁇ gen. Rather, a uniform distribution in the specified particle diameter range desired.
  • ER is aimed that the polymer particles have a maximum degree of filling it ⁇ rich and thus, having the proportion of a yet to be described the second liquid component the smallest possible proportion.
  • the liquid component comprises at least one substance or a mixture of 1, 1-diphenylethane and / or Benzyltolue- ne.
  • the liquid component of Dielektri ⁇ kums 8 may contain other additives.
  • the function ⁇ materials 1, 1-diphenylethane and / or Benzyltoluene should JE but have the highest possible purity, in which case they have dielectric strengths of more than 70 kV / mm 2.
  • the density of the mixture is about 1 g / cm 3 .
  • the density of the liquid component is such that it differs from the density of the polymer, ie the polypropylene, less than 0.1 g / cm 3 .
  • the described electrical component with the applied novel dielectric is particularly distinguished from the state of the art in the form of environmental compatibility. Due to the described construction can be dispensed with the otherwise very good dielectric SF6 gas. Furthermore, a dielectric is found, which makes it possible to design the entire component, in this case, the high-voltage switching device, much smaller than would be the case with the use of a gas mixture, in particular of purified air. Due to the more compact design and in particular the cost-effective use of a sches from a very inexpensive and dielectrically very good acting polymer such.
  • the polypropylene in combination with the liquid component, which is also relatively ⁇ -effectively kos and thereby excellent dielectric properties inherent ⁇ having a low cost and environmentally scho ⁇ designating construction of the electrical component is ensured. Furthermore, the dielectric spreads in all complex areas of the insulation space (which is shown in a very simplified rectangular manner in the present figure). It can thus ⁇ not come to the formation of gaps, as would be the case for example with the use of solid state dielectrics. In particular, the aging compared to conventionally used solid dielectric and other FLÜS ⁇ sigen dielectrics is emphasized.

Landscapes

  • Organic Insulating Materials (AREA)

Abstract

L'invention concerne un composant électrique comprenant un espace électriquement fonctionnel et un espace électriquement isolant, caractérisé en ce que l'espace isolant est rempli au moins partiellement d'un mélange comprenant les constituants suivants: un constituant liquide lequel contient du 1,1 diphényléthane et/ou du benzyltoluène, et un constituant solide qui comprend un polymère granulé, la différence de densité entre le polymère et le constituant liquide étant inférieure à 0,5 g/cm3.
PCT/EP2012/057539 2011-05-13 2012-04-25 Composant électrique Ceased WO2012156184A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011075786.4 2011-05-13
DE201110075786 DE102011075786A1 (de) 2011-05-13 2011-05-13 Elektrisches Bauelement

Publications (1)

Publication Number Publication Date
WO2012156184A1 true WO2012156184A1 (fr) 2012-11-22

Family

ID=46085011

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/057539 Ceased WO2012156184A1 (fr) 2011-05-13 2012-04-25 Composant électrique

Country Status (2)

Country Link
DE (1) DE102011075786A1 (fr)
WO (1) WO2012156184A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014122053A1 (fr) 2013-02-11 2014-08-14 Siemens Aktiengesellschaft Composant électrique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300728A1 (de) * 1972-01-19 1973-07-26 Asea Ab Elektrische schaltvorrichtung
GB2083707A (en) * 1980-09-03 1982-03-24 Ass Elect Ind Circuit interrupters
GB2086656A (en) * 1980-10-24 1982-05-12 Aei Liquid-filled circuit-breaker
DE10139624C1 (de) * 2001-08-14 2003-04-03 Siemens Ag Elektrisches Schaltgerät für Mittel- oder Hochspannung
DE102006056655A1 (de) * 2006-11-29 2008-07-17 Areva Energietechnik Gmbh Schaltermodul für eine elektrische Schaltanlage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622250A (en) * 1985-04-10 1986-11-11 S&C Electric Company Insulating material and use thereof in insulators
AU7248501A (en) * 2000-06-28 2002-01-14 Pirelli Cavi E Sistemi Spa Cable with recyclable covering

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300728A1 (de) * 1972-01-19 1973-07-26 Asea Ab Elektrische schaltvorrichtung
GB2083707A (en) * 1980-09-03 1982-03-24 Ass Elect Ind Circuit interrupters
GB2086656A (en) * 1980-10-24 1982-05-12 Aei Liquid-filled circuit-breaker
DE10139624C1 (de) * 2001-08-14 2003-04-03 Siemens Ag Elektrisches Schaltgerät für Mittel- oder Hochspannung
DE102006056655A1 (de) * 2006-11-29 2008-07-17 Areva Energietechnik Gmbh Schaltermodul für eine elektrische Schaltanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014122053A1 (fr) 2013-02-11 2014-08-14 Siemens Aktiengesellschaft Composant électrique
DE102013202177A1 (de) 2013-02-11 2014-08-14 Siemens Aktiengesellschaft Elektrisches Bauelement

Also Published As

Publication number Publication date
DE102011075786A1 (de) 2012-11-15

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