Andreas Dernfalk

Showing 18 publications

2007

Diagnostic methods for outdoor polymeric insulators

Stanislaw Gubanski, Andreas Dernfalk, Johan Andersson et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 14 (5), p. 16-
Journal article
2005

Sequential Comparative Study of Dielectric Response and Analyses of Oil and Paper from a Power Transformer Undergoing Repair

Jörgen Blennow, Andreas Dernfalk, K Walczak et al
In Proc. 14th International Symposium on High Voltage Engineering
Paper in proceedings
2005

Image analysis and laser induced fluorescence combined to determine biological growth on silicone rubber insulators

S Wallström, Andreas Dernfalk, M Bengtsson et al
Polymer Degradation and Stability. Vol. 88 (3), p. 394-400
Journal article
2005

Fluorescence lidar imaging of fungal growth on high-voltage outdoor composite insulators

M Bengtsson, R Grönlund, M Sjöholm et al
Optics and Lasers in Engineering. Vol. 43 (6), p. 624-632
Journal article
2005

Comparative study of dielectric spectroscopy measurements and anayses of oil and paper samples from a transformer undergoing repair

Jörgen Blennow, K Walczak, Andreas Dernfalk et al
In Proc. of 19th Nordic Insulation Symposium, Trondheim, Norway, June 13-15
Conference contribution
2004

Techniques for estimation of biological contamination on insulators using image analysis

Andreas Dernfalk, Stanislaw Gubanski
Electrical Insulation and Dielectric Phenomena, 2004. CEIDP '04. 2004 Annual Report Conference on, p. 659 - 662
Paper in proceedings
2004

Image Analysis in Insulator Diagnostics

Andreas Dernfalk, Stanislaw Gubanski
Insulator News & Market Report. Vol. 12 (4), p. 36-40
Journal article
2004

New Laser Technique for Diagnostics of Composite Insulators

Andreas Dernfalk, Stanislaw Gubanski
Insulator News & Market Report. Vol. 12 (3), p. 78-83
Journal article
2003

Laser-induced fluorescence spectroscopy for detection of biological contamination on composite insulators

Andreas Dernfalk, Magnus Bengtsson, Rasmus Grönlund et al
In Proc. 13th International Symposium on High Voltage Engineering, Delft, Netherlands
Paper in proceedings
2002

In-situ diagnostics of HV outdoor insulators using laser-induced fluorescence spectroscopy

Anders Larsson, Albin Roslund, Stefan Kröll et al
Dielectrics and Electrical Insulation, IEEE Transactions on. Vol. 9 (2), p. 274-281
Journal article
2001

Laser-Induced fluorescence surface spectroscopy - a candidate for the characterisation of high-voltage insulator surfaces

Anders Larsson, Stefan Kröll, Andreas Dernfalk
In Proc. of Nordic Insulation Symposium, p. 133-140
Conference contribution
2001

Remote and non-intrusive diagnostics of high-voltage insulation materials using laser-induced fluorescence spectroscopy

Anders Larsson, Albin Roslund, Andreas Dernfalk et al
Electrical Insulation and Dielectric Phenomena, 2001 Annual Report. Conference on, p. 428 - 431
Paper in proceedings
2001

Performance of Different Insulator Designs in Tropical Environments and Diagnostic Possibilities

Stanislaw Gubanski, Andreas Dernfalk, Manjula Fernando
In Proc. Cigré International Symposium on "Behaviour of Electrical Equipment and Components in Tropical Environments", p. Paper No. 200-18
Conference contribution
2001

Optical sensors based on liquid crystals for measuring DC fields in air

Andreas Dernfalk, Sören Richter, Jörgen Blennow
In Proc. of Nordic Insulation Symposium, p. 97-104
Conference contribution
2001

Optical sensors based on liquid crystals for measuring DC fields in air

Andreas Dernfalk
In Proc. of Nordic Insulation Symposium, p. 97-104
Conference contribution
2001

Use of digital image analysis for studying biological contamination on nonceramic insulators

Andreas Dernfalk, Stanislaw Gubanski
In Proc. 12th International Symposium on High Voltage Engineering, p. 599-602
Conference contribution

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