Results 11 to 20 of about 103,543 (161)

Performance test of compact tubular high-voltage electric field coalescers

open access: yesYou-qi chuyun, 2021
In order to explore the actual change in the particle size distribution of the dispersed phase water droplets of the water-in-oil emulsion in the electric field demulsification process, and obtain the optimal electric field parameters according to the ...
Jian-yu DONG   +5 more
doaj   +1 more source

Development of a Wideband Precision Electric Field Measuring Sensor

open access: yesSensors, 2023
High-voltage electric field measurement technology has certain applications in electric field measurement of power systems, but due to the limitation of its measurement accuracy and bandwidth, it cannot be used for the measurement of lightning-impulse ...
Zhaozhi Long   +6 more
doaj   +1 more source

Transient electric field of the combined insulation structure under positive periodic square waveform voltage: Analytical analysis and application

open access: yesHigh Voltage, 2022
The working voltage of the high‐voltage high‐power electronic devices is the positive periodic square waveform (PPSW) voltage, which is much different from the conventional AC or DC voltage.
Teng Wen   +4 more
doaj   +1 more source

Electric field induced degradation of high-voltage PTCR ceramics

open access: yesOpen Ceramics, 2022
This study investigates the degradation of the PTCR material BaTiO3 in high DC voltage, as it is important for the application as heater in electric cars. Impedance spectroscopy was used to gain information on the degradation.
Julian N. Ebert, Wolfgang Rheinheimer
doaj   +1 more source

Electric and Magnetic Fields of the High Voltage Autotransformer

open access: yesElektronika ir Elektrotechnika, 2010
High voltage power autotransformer is one of the strongest sources of the electric and magnetic fields in the electrical power systems. The autotransformer with surroundings was modelled using finite element method for evaluate magnetic and electric fields distribution around it.
R. Deltuva, J. A. Virbalis, S. Gečys
openaire   +3 more sources

EFFECT OF ALUMINUM FOILS NUMBER AND ITS LENGTH IN IMPROVEMENT OF ELECTRIC FIELD DISTRIBUTION OF HIGH VOLTAGE CONDENSER BUSHING

open access: yesJournal of Engineering and Sustainable Development, 2021
High voltage condenser bushing is one of the important component that is widely used in the high voltage system. At high voltage levels more than 52kV the distribution of electric field in condenser bushing is irregular between the lead conductor and ...
Zahraa G. Mustafa, Kassim R. Hameed
doaj   +3 more sources

Electric field modelling of non–Ceramic high voltage insulators [PDF]

open access: yesAustralian Journal of Electrical and Electronics Engineering, 2008
This paper applies a three-dimensional (3D) electric field analysis program to calculate the field distribution at the live end of 110 kV non-ceramic insulators used in the Queensland transmission system. A number of 110 kV insulator configurations have been modelled, including a post, a longrod and a horizontal vee assembly, to determine the electric ...
Eleperuma, K.   +2 more
openaire   +2 more sources

Study of variants of pre-sowing preparation of melon seeds in high voltage electric fields [PDF]

open access: yesBIO Web of Conferences
The research was conducted to study the influence of electrophysical effects on melon seeds and their development, as well as to identify the most effective variant of pre-sowing stimulation and treatment mode. As an agro-technological task, we evaluated
Daus Yulia V.   +4 more
doaj   +1 more source

Investigation of impact of DC component on breakdown characteristics for different electric fields under composite AC & DC voltage

open access: yesHigh Voltage, 2022
The valve side of the converter in the high‐voltage direct current is subjected to mixed voltages such as composite AC & DC voltage. In this study, the effects of the homogeneity of electric field on breakdown voltage were investigated for different ±DC ...
Mehmet Murat Ispirli   +4 more
doaj   +1 more source

Effect of fouling resistance in heat exchanger and the crystal form of CaCO3 in hard circulating cooling water with electrostatic field and alternating current electric field

open access: yesWater Science and Technology, 2021
The effect of high voltage electrostatic field and high voltage alternating current electric field on the heat exchanger surface fouling under the conditions of hard water was investigated.
Jing Xu   +5 more
doaj   +1 more source

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