Electric field and space charge of spherical electrode at high voltage concentric with a grounded conductive sphere

1998 ◽  
Vol 34 (4) ◽  
pp. 719-725
Author(s):  
G. Kazkaz
Keyword(s):  
Electric Field ◽  
Space Charge ◽  
High Voltage ◽  
Spherical Electrode

Electric field and space charge distribution measurement in transformer oil struck by impulsive high voltage

2015 ◽  
Vol 107 (8) ◽  
pp. 082905 ◽  
Author(s):  
Wenxia Sima ◽  
Hongda Guo ◽  
Qing Yang ◽  
He Song ◽  
Ming Yang ◽  
...  
Keyword(s):  
Electric Field ◽  
Space Charge ◽  
Charge Distribution ◽  
High Voltage ◽  
Transformer Oil ◽  
Distribution Measurement ◽  
Space Charge Distribution

Influence of the Semiconductive Composites Doped with Li4Ti5O12 on Space Charge Implantation in LDPE

2021 ◽  
Author(s):  
Hongxia Yin ◽  
Shiyi Zhao ◽  
Chuncheng Hao ◽  
Qingquan Lei
Keyword(s):  
Electric Field ◽  
Space Charge ◽  
High Voltage ◽  
Positive Temperature Coefficient ◽  
Positive Temperature ◽  
Conductive Network ◽  
Charge Accumulation ◽  
Insulation Layer ◽  
Injection Process ◽  
Key Factor

Abstract Space charge accumulation in the insulating layers of high-voltage directed current (HVDC) cables is the key factor that leads to their degradation and limits the operation safety. Hence, it is necessary to effectively inhibit carrier implantation to these layers. In this study, a new method is proposed to suppress the charge implantation to the cable insulation layer, a certain amount of Li4Ti5O12 nanopowder is doped in the semiconductive screen to enhance the internal conductive network and homogenize the electric field. The influences of Li4Ti5O12 particles in the semiconductive composite screen on the positive temperature coefficient effect and space charge injection process are explored. The obtained results reveal that the charge quantity in the insulation layer corresponding to the minimum peak resistivity is reduced by 49.7%, 58.9%, and 46.9% after the polarization at a Li4Ti5O12 content of 4 wt.% and electric field strengths of 10, 20, and 30 kV/mm, respectively.

PEMANFAATAN RADIASI ENERGI TEGANGAN 150 KV UNTUK LAMPU LED PENERANGAN JALAN

Jurnal Teknik ◽  
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Mauludi Manfaluthy
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
High Voltage ◽  
Low Frequency ◽  
Energy Utilization ◽  
World Health ◽  
Electromagnetic Signals ◽  
Health Organization ◽  
The Magnetic Field ◽  
Low Frequency Waves

WHO (World Health Organization) concludes that not much effect is caused by electric field up to 20 kV / m in humans. WHO standard also mentions that humans will not be affected by the magnetic field under  100 micro tesla and that the electric field will affect the human body with a maximum standard of 5,000 volts per meter. In this study did not discuss about the effect of high voltage radiation SUTT (High Voltage Air Channel) with human health. The research will focus on energy utilization of SUTT radiation. The combination of electric field and magnetic field on SUTT (70-150KV) can generate electromagnetic (EM) and radiation waves, which are expected to be converted to turn on street lights around the location of high voltage areas or into other forms. The design of this prototype works like an antenna in general that captures electromagnetic signals and converts them into AC waves. With a capacitor that can store the potential energy of AC and Schottky diode waves created specifically for low frequency waves, make the current into one direction (DC). From the research results obtained the current generated from the radiation is very small even though the voltage is big enough.Keywords : Radiance Energy, Joule Thief, and  LED Module.

Instrument for measuring the electric field vector of high-voltage equipment

1983 ◽  
Vol 26 (1) ◽  
pp. 49-50
Author(s):  
I. P. Klimashevskii ◽  
B. L. Kondrat'ev ◽  
V. A. Poletaev ◽  
V. M. Yurkevich
Keyword(s):  
Electric Field ◽  
High Voltage ◽  
Field Vector ◽  
Electric Field Vector
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