A basic study on the effect of voltage stress on a water droplet on a silicone rubber surface

Fujii, Osamu; Honsali, Khalil; Mizuno, Yukio; Naito, K.

doi:10.1109/tdei.2009.4784558

Cited by 29 publications

(23 citation statements)

References 5 publications

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“…It was confirmed that the droplet deformed periodically with a frequency double the applied voltage. This is due to the Maxwell stress [15].…”

Section: Behavior Of An Uncharged Water Dropletmentioning

confidence: 99%

“…The deformation was periodical and the frequency was the same as that of the applied voltage. This is due to the true charge of the water droplet, thus the effect of the Coulomb's force [15].…”

Section: Behavior Of a Charged Water Dropletmentioning

confidence: 99%

“…In a previous paper, quantitative studies were made on wetting of the surface of polymeric materials and size distribution of water droplets on the surface, and the electrical and mechanical stresses on water droplets under voltage application were investigated [15]. The authors thought that an elongation of the water droplet would happen in the direction of the electric field, that is, there should be a reduction in the insulation length resulting in the reduction of the flashover voltage.…”

Section: Introductionmentioning

confidence: 99%

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Vibration of a water droplet on a polymeric insulating material subjected to AC voltage stress

Fujii

Honsali

Mizuno

et al. 2010

IEEE Trans. Dielect. Electr. Insul.

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The behavior of a water droplet on a silicone rubber plate was observed with a high-speed camera under ac voltage application. It was confirmed that a water droplet vibrated and that a remarkable deformation from the original droplet form occurred at the mechanical resonance frequency. Vibration frequency of an uncharged water droplet was double the frequency of the applied voltage. On the contrary, in the case of an artificially charged droplet, vibration frequency was the same with that of the applied voltage. A macroscopic mechanical model was devised, to which the experimental data were well correlated. Flashover voltage via the water droplet was also measured. Lower flashover voltage was obtained at the mechanical resonance frequency.

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“…It was confirmed that the droplet deformed periodically with a frequency double the applied voltage. This is due to the Maxwell stress [15].…”

Section: Behavior Of An Uncharged Water Dropletmentioning

confidence: 99%

Section: Behavior Of a Charged Water Dropletmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Vibration of a water droplet on a polymeric insulating material subjected to AC voltage stress

Fujii

Honsali

Mizuno

et al. 2010

IEEE Trans. Dielect. Electr. Insul.

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“…The electric field variation surrounding the water droplets when under a constant electric field E o is discussed in [17][18][19][20]. Electric field distributions along the lines of equal distance from the insulator surface (E 1 to E n in Figure 3) are defined.…”

Section: Initialisation Of Corona Discharge Between Two Water Dropletsmentioning

confidence: 99%

“…Each water droplet was photographed (Figure 8) to observe changes to the contact angle with the volume of water. The contact angle of the water droplet (and hence the shape of the droplet) changes with increasing volume of the droplet [19]. It also changes with the hydrophobicity level of the material.…”

Section: Rf Signature For Corona and Dry-band Arcing Discharges For Wmentioning

confidence: 99%

Detection of Corona and Dry-Band Arc Discharges on Nano-Composite Epoxy Insulators Using Rf Sensing

Fernando¹,

Wong²,

Rowe³

2012

PIER

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Abstract-RF radiation due to corona and dry-band arc discharges have been observed using an antenna. Variations in radiated energy were observed due to change in the distance between two water droplets, the contact angle and the volume of the droplets, and the condition of the insulator surface. Changes in the frequency spectrum within the 800 MHz-900 MHz and 1.25 GHz-1.4 GHz frequency bands have been used to identify the transition from corona discharge to dryband arc discharge. The 800 MHz-900 MHz emission band has also been used to monitor the condition of the insulator. These findings highlight the potential for RF sensing in the identification of partial discharges and insulator condition monitoring.

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Characteristics of powdered layer on silicone rubber surface

Liang

Zhang

et al. 2021

Journal of Materials Research and Technology

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A basic study on the effect of voltage stress on a water droplet on a silicone rubber surface

Cited by 29 publications

References 5 publications

Vibration of a water droplet on a polymeric insulating material subjected to AC voltage stress

Vibration of a water droplet on a polymeric insulating material subjected to AC voltage stress

Detection of Corona and Dry-Band Arc Discharges on Nano-Composite Epoxy Insulators Using Rf Sensing

Characteristics of powdered layer on silicone rubber surface

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