The effect of nitrogen sparging on the long term stability of the breakdown electric field strength of a repetitively pulsed oil dielectric switch

2007 ◽  
Author(s):  
P. Norgard ◽  
R. D. Curry ◽  
J. M. Turner
Keyword(s):  
Field Strength ◽  
Electric Field ◽  
Electric Field Strength ◽  
Term Stability ◽  
Breakdown Electric Field ◽  
Long Term Stability

scholarly journals Assessment of short/long term electric field strength measurements for a pilot district

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 69-74
Author(s):  
Cetin Kurnaz ◽  
Dogan Yildiz ◽  
Serap Karagol
Keyword(s):  
Mathematical Model ◽  
Field Strength ◽  
Electric Field ◽  
Electric Field Strength ◽  
Cellular Systems ◽  
Base Stations ◽  
Short Term ◽  
Technological Developments ◽  
Day By Day

Abstract The level of electromagnetic radiation (EMR) exposure increases day by day as natural consequences of technological developments. In recent years, the increasing use of cellular systems has made it necessary to measure and evaluate EMR originating from base stations. In this study, broadband and band selective electric field strength (E) measurements were taken at four different times in order to evaluate the change of short term E in Atakum district of Samsun, Turkey. The measurements were collected from 46 different locations using a SRM 3006 and a PMM 8053 EMR meter in a band from 100 kHz to 3 GHz, and the maximum E (Emax) and the average E (Eavg) were recorded. The highest values have been noticed in these measurements at 9.45 V/m and 17.53 V/m for Eavg and Emax respectively. Apart from these measurements, 24 hour long term E measurements were taken at a location where the highest value was observed and analyzed, to observe the change of Es during a day. At the end of the study, a tentative mathematical model that helps in computing the total E of the medium with 95% accuracy, was obtained.

Tuning the Built-in Electric Field in Ferroelectric Pb(Zr0.2Ti0.8)O3 Films for Long-Term Stability of Single-Digit Nanometer Inverted Domains

Nano Letters ◽  
2012 ◽  
Vol 12 (11) ◽  
pp. 5455-5463 ◽  
Author(s):  
Noureddine Tayebi ◽  
Sunkook Kim ◽  
Robert J. Chen ◽  
Quan Tran ◽  
Nathan Franklin ◽  
...  
Keyword(s):  
Electric Field ◽  
Single Digit ◽  
Term Stability ◽  
Long Term Stability

scholarly journals An Empirical Relation for Vegetation Fuel Flames Breakdown Electric Field Strength

2019 ◽  
Vol 11 (11) ◽  
pp. 187-202
Author(s):  
Kago Ernest Maabong ◽  
Kgakgamatso Mphale ◽  
Douglas Letsholathebe ◽  
Samuel Chimidza ◽  
Phenyo Thebenyane
Keyword(s):  
Field Strength ◽  
Electric Field ◽  
Electric Field Strength ◽  
Empirical Relation ◽  
Breakdown Electric Field

scholarly journals Microstructure and dielectric properties of dysprosium-doped barium titanate ceramics

Cerâmica ◽  
2005 ◽  
Vol 51 (319) ◽  
pp. 214-218 ◽  
Author(s):  
Y. Pu ◽  
W. Chen ◽  
S. Chen ◽  
Hans T. Langhammer
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Barium Titanate ◽  
Field Strength ◽  
Electric Field ◽  
Electric Field Strength ◽  
Vacancy Concentration ◽  
Breakdown Electric Field ◽  
Barium Titanate Ceramic ◽  
Titanate Ceramic

The substitution behavior and lattice parameter of barium titanate between solid_solubility with a dopant concentration in the range of 0.25 to 1.5 mol% are studied. The influences of dysprosium-doped fraction on the grain size and dielectric properties of barium titanate ceramic, including dielectric constant and breakdown electric field strength, are investigated via scanning electronic microscopy, X-ray diffraction and electric property tester. The results show that, at a dysprosium concentration of 0.75 mol%, the abnormal grain growth is inhibited and the lattice parameters of grain rise up to the maximum because of the lowest vacancy concentration. In addition, the finegrain and high density of barium titanate ceramic result in its excellent dielectric properties. The relative dielectric constant (25 °C) reaches to 4100. The temperature coefficient of the capacitance varies from -10 to 10% within the temperature range of -15 °C -100 °C, and the breakdown electric field strength (alternating current) achieves 3.2 kV/mm. These data suggest that our barium titanate could be used in the manufacture of high voltage ceramic capacitors.

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