Results 31 to 40 of about 12,448 (163)

Influence of Conductor Temperature on the Voltage–Current Characteristic of Corona Discharge in a Coaxial Arrangement—Experiments and Simulation

Energies
High-current-carrying capability with minimum thermal elongation is one of the key reasons for using high-temperature low-sag (HTLS) conductors in modern power systems.
Kayumba Grace Ilunga, Andrew Graham Swanson, Nelson Ijumba, Robert Stephen   +3 more
doaj   +1 more source

Corona Discharge Velocimeter

Acta Acustica united with Acustica, 2018
An acoustic velocity sensor is described. It uses a small volume of ionized gas as sensing element to estimate the velocity of air particles, especially their oscillations caused by an acoustic perturbation. The generation of charged particles is performed by a negative point-to-plane discharge, the plane anode being split into two electrically ...
Béquin, Philippe, Joly, Vincent, Herzog, Philippe   +2 more
openaire   +3 more sources

Comparative Study of HMM and BPNN in Detecting Corona Discharge on 20 kV Cubicle Based on Voltage and Sound

ITEGAM-JETIA
Corona discharge is one of the most common disturbances in 20 kV cubicles, potentially reducing efficiency and damaging equipment. Early detection is essential to improve system reliability and prevent failures.
Christiono Christiono, Miftahul Fikri, Syamsir Abduh   +2 more
doaj   +1 more source

Improvement of Corona Discharge Model and Its Application on Simulating Corona Discharge in the Presence of Wind [PDF]

Mathematical Problems in Engineering, 2017
To evaluate the effect of wind on corona discharges occurring on the tip of a grounded rod during a negative charging process of thundercloud, a two‐dimensional numerical model has been improved by considering the wind velocity as a driving force for the movement of the corona charges.
Xiufeng Guo, Qilin Zhang, Jinbo Zhang
openaire   +1 more source

Depolarization current relaxation process of insulating dielectrics after corona poling under different charging conditions

AIP Advances, 2017
As an insulating dielectric, polyimide is favorable for the application of optoelectronics, electrical insulation system in electric power industry, insulating, and packaging materials in space aircraft, due to its excellent thermal, mechanical and ...
J. W. Zhang, T. C. Zhou, J. X. Wang, X. F. Yang, F. Zhu, L. M. Tian, R. T. Liu   +6 more
doaj   +1 more source

Study of Positive Corona Discharge of Needle Plate Electrodes in Airflow

High Voltage
For high‐speed moving objects such as aircraft and wind turbine blades, discharge occurs under strong airflow. Research on lightning attachment characteristics has been extensive, whereas the role of corona discharge in pre‐breakdown streamer development
Lei Lan, Zhengxian Du, Qiang Wu, Yeqiang Deng, Yu Wang, Zeliang Wu, Xiankang Wang   +6 more
doaj   +1 more source

Effect of Magnetic Field on Arrayed Corona Discharge

Applied Sciences
Corona discharge has been extensively adopted for plasma generation, but its practical application is constrained by discharge uniformity and operational stability.
Chengxuan Li, Ying Zhang, Qiming Sun
doaj   +1 more source

Ion-impact secondary emission in negative corona with photoionization

AIP Advances, 2017
A corona discharge measurement system and simulation model are presented to investigate the effects of photoionization and ion-impact secondary emission process in negative corona discharge.
B. X. Lu, H. Y. Sun
doaj   +1 more source

Research on Ultraviolet Characteristic Parameters of DC-Positive Polarity Corona Discharge on Conductors

Applied Sciences
The detection of corona-related defects in transmission lines has been included in the work of transmission line defect detection. Ultraviolet detection technology has gradually been widely applied in the field of corona discharge detection. However, the
Youquan Dai, Zhanlong Zhang, Zijian Dong, Yongye Wu, Deng Jun   +4 more
doaj   +1 more source

Finite Element Solution of the Corona Discharge of Wire-Duct Electrostatic Precipitators at High Temperatures—Numerical Computation and Experimental Verification

Mathematics, 2020
Global warming is the greatest challenge faced by humankind, and the only way to reduce or totally eliminate its effects is by minimizing CO2 emissions.
Hamdy A. Ziedan, Hegazy Rezk, Mujahed Al-Dhaifallah, Emad H. El-Zohri   +3 more
doaj   +1 more source