High-Voltage Insulation Technology

Kind, Dieter; Karner, H.C.

doi:10.1007/978-3-663-14090-0

Cited by 101 publications

(39 citation statements)

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“…From the results it is evident that an increase in droplet volume leads to a reduction of the flashover voltage [2]. An increase in water conductivity results in a reduction of the flashover voltage [1,2].…”

Section: Discussionmentioning

confidence: 89%

“…Epoxy resin is also used as an important insulating component for machine insulation. It is a reliable insulating material resulting from addition polymerization, which is the combination of different types of monomer without splitting off side products [2]. Such a material suffers depending on the application from various deterioration phenomena, such as partial discharges [3], sudden impulses [4], surface effects and flashover voltages.…”

Section: Introductionmentioning

confidence: 99%

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A Study of the Behaviour of Water Droplets Under the Influence of Uniform Electric Field in Epoxy Resin Samples

Cheng¹,

Zhao²,

Danikas³

et al. 2012

Journal of Electrical Engineering

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Water droplets on the surface of epoxy resin samples were investigated under the influence of uniform electric fields. Several parameters of water droplets were investigated wrt the flashover voltage of the epoxy resin samples, such as water conductivity, droplet volume, number of droplets as well as the positioning of the droplets regarding the electrodes. The droplet behavior is affected by the above mentioned parameters. Perhaps the most striking conclusion is that the flashover voltage depends more on the positioning of the droplets wrt the electrodes than on the droplet volume and/or number of droplets.

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Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

A Study of the Behaviour of Water Droplets Under the Influence of Uniform Electric Field in Epoxy Resin Samples

Cheng¹,

Zhao²,

Danikas³

et al. 2012

Journal of Electrical Engineering

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show abstract

“…Hence the permittivity decreases, however, further increase in the wt% of Alumina nanofiller enhances the ionic displacement, intensifying the internal field and thereby reducing the electronic, orientation polarization. Thus resulting in higher permittivity [10][11][12].…”

Section: Fig 6(c)mentioning

confidence: 99%

“…Thus, for example, the insulation resistance of a support insulator consists of the combination in parallel of surface resistance and volume resistance. While the volume resistance, commonly expressed as specific resistance (ΡS) in Ω cm, is often independent of surrounding medium, the surface resistance is appreciably influenced by ambient conditions such as pressure, temperature, humidity, dust etc [11].…”

Section: Surface Resistance Measurementmentioning

confidence: 99%

Experimental Investigation on Dielectric and Thermal Characteristics of Nanosized Alumina Filler Added Polyimide Enamel

Sugumaran¹

2014

Journal of Electrical Engineering and Technology

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-The polymer nano composite possess good priority recently for engineering applications.Especially the electrical insulating materials attract the high performance of nano composites. In this work the ballmill synthesiation process of nano sized Alumina (Al 2 O 3 ), the preparation of new nano composite material with an content of enamel and synthesized Alumina as 1wt%, 3wt% and 5wt%. Experimental investigation has been carried out for the prepared nano composites materials with respect to dielectric parameter measurements such as dielectric loss (tan δ), dielectric constant (ε), dielectric strength under various temperature. The partial discharge level also measured for all the samples and the PD inception voltage is also observed and compared. Weight loss of the material has been analyzed through TGA. It has been experimentally proved that 3wt% of Alumina nano filler added enamel has significant improvement in the dielectric and thermal properties.

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“…Nano dielectrics were a class of materials containing at least one phase at the nanometer scale. The basic understanding of electrical breakdown of materials and electrical surface flashover phenomena must be investigated before they can be commercially available [1]. The findings of such studies are essential for the development of nano -dielectric materials.…”

Section: Introductionmentioning

confidence: 99%

Characterization of dielectric properties of the enamel filled with carbon nanotubes for the frequency range of 50 Hz - 5 MHz

Selvaraj¹

2013

IJSEA

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Abstract:It has been observed that the addition of nano fillers to the enamel can greatly improve the dielectric properties of the enamel. Carbon nanotubes have been tested as nano filler. Chemical vapour deposition method was used to synthesize carbon nanotubes. Scanning electron microscope has been used to augment the particle size of carbon nanotubes. These carbon nanotubes were mixed with standard (Elmo Luft 1A-FD) enamel with help of ultrasonic vibrator. The basic dielectric properties such as dielectric loss tangent (tan ), dielectric constant( ), quality factor, phase angle, dielectric conductivity and dielectric power loss of the enamel filled with carbon nanotubes were analyzed and compared with the properties of the standard enamel. These different dielectric properties were found with the help of the Dielectric Spectroscopy. Dielectric constant, dielectric losses, dielectric conductivity and heat generated under AC fields were analyzed for the frequency range of 50 Hz to 5 MHz. At 50 Hz, the enamel filled with 1 wt% of carbon nanotubes has lower dissipation factor and dielectric losses. At 5 MHz, the enamel filled with 3 wt% of carbon nanotubes has lower dissipation factor and dielectric losses.

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High-Voltage Insulation Technology

Cited by 101 publications

References 0 publications

A Study of the Behaviour of Water Droplets Under the Influence of Uniform Electric Field in Epoxy Resin Samples

A Study of the Behaviour of Water Droplets Under the Influence of Uniform Electric Field in Epoxy Resin Samples

Experimental Investigation on Dielectric and Thermal Characteristics of Nanosized Alumina Filler Added Polyimide Enamel

Characterization of dielectric properties of the enamel filled with carbon nanotubes for the frequency range of 50 Hz - 5 MHz

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