THE PROSPECTS OF NANOTECHNOLOGY IN ELECTRICAL POWER ENGINEERING

1
THE PROSPECTS OF NANOTECHNOLOGY IN ELECTRICAL
POWER ENGINEERING

• Christof Sumereder
• Institute of High Voltage Engineering and System
  Management
• Graz University of Technology

2
Improvements of Nanotechnologies

• Metallic conductors
• Electric insulation properties
• Miniaturizing of design, reduction of used
  material, higher reliability
• Electromagnetic compatibility (EMV)
• Elongation of life-time period and long-term
  efficiency

3
Physical Effects

• Volume Effect ? Surface Effect

1nm
1µm
nano dielectrica
microscopic dielectrica
4
CNT Carbon Nano Tubes
REM of CNT Ingenieur Wissenschaft
Jahresmagazin, http//www.institut-wv.de/2244.html
Different Types of CNT http//de.wikipedia.org/wi
ki/BildTypes_of_Carbon_Nanotubes.png
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Ultra Low Resistivity

• Change from OHMIC Conductivity in metallic
  materials to loss free BALLISTIC Conductivity in
  CNT

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Metallic Conductors

• Calculated resistivity in a composite of copper
  and CNT

O. Hjortstam, P. Isberg, S. Söderholm, and H.
Dai Can we achieve ultra-low resistivity in
carbon nanotube-based metal composites?, Applied
Physics A, Vol. 78, No. 8, 2004
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Dielectric Properties of Insulants

• Influence of filler concentration on the
  dielectric behaviour of insulating materials

S. Rätzke, J. KindersbergerErosion Behaviour of
Nano Filled Silicone Elastomers, ISH 2005, paper
C09
8
Fillers
Translation of 99.ETG-Fachbericht
2005 Kindesberger, Rätzke Werkstoffe mit
Nanofüllstoffen für Freiluftisolierungen
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Electric Treeing
ISEIM 2005, Takahiro Imai, Fumio Sawa, Tamon
Ozaki, Toshio Shimizu Evaluation of Insulation
Properties of Epoxy Resin with Nano-Scale Silica
Particles
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Hydrophobic Properties of Surfaces
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Contact Angle Measurement

• Nanocoating of porcelain surface
• Artificial ageing procedure of insulators
• Permanent optical measurement of contact angle

12
Interfacial Tension

• Interfacial tension at different water drop size
  on coated and uncoated porcelain insulators

NANOCOATING
NO COATING
1µl
1µl
50µl
50µl
90µl
90µl
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Results
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• Thank you for attention