scholarly journals Currents and Voltages Induced by Electric Field in Two Converging Single-wire Overhead Transmission Lines

2019 ◽  
Vol 139 ◽  
pp. 01044
Author(s):  
Kirill Zimin ◽  
Nina Rubtsova ◽  
Andrey Tokarskskiy
Keyword(s):  
Electric Field ◽  
Transmission Lines ◽  
Minimal Distance ◽  
Single Wire ◽  
Limit Values ◽  
Overhead Transmission Lines ◽  
Electric Effect

The calculations of induced by electric field voltage and current for i line grounded and ungrounded ends depending on p - line convergence part length, а0 minimal distance between convergence lines, and Θ - the angle of lines convergence. Limit values of р, а0 and Θ are determined, one of which disturbance allows to neglect the electric effect of converging transmission lines.

Distribution of Currents and Voltages, Induced by Electric Field of Three-Phase Overhead Transmission Line along the Grounded Phase/Cable of Disconnected Parallel Power Line

2020 ◽  
Vol 9 (1) ◽  
pp. 31-40
Author(s):  
D. Demchenko ◽  
N. Rubcova ◽  
V. Ryabchenko ◽  
A. Tokarskiy
Keyword(s):  
Electric Field ◽  
Transmission Lines ◽  
Power Line ◽  
Induced Voltage ◽  
Limit Values ◽  
Health Maintenance ◽  
Overhead Transmission Line ◽  
Overhead Transmission Lines ◽  
Three Phase ◽  
Overhead Power Line

The health maintenance of linemen working at overhead transmission lines under induced voltage requires compliance of these voltages’ limit values. To ensure compliance with these requirements have been developed algorithms for calculating of currents and voltages distribution along the grounded phase/cable of disconnected power line, induced by the electric field of operating three-phase overhead power line without transposition, with full and incomplete complete phases transposition section .

Analysis of 50Hz Electric Fields Generated by Multi-Circuit Transmission Lines on the Same Tower

2014 ◽  
Vol 700 ◽  
pp. 67-70 ◽  
Author(s):  
Bin Liu ◽  
Tao Wang ◽  
Fei Gu ◽  
Jie Wei ◽  
Hong Wei Cui ◽  
...  
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
Transmission Lines ◽  
The Finite Element Method ◽  
Protection Measures ◽  
Overhead Transmission Lines ◽  
Domestic Security ◽  
Phase Sequence ◽  
The Cross ◽  
Security Standards

The finite element method has been applied to calculate the 50Hz electric fields nearby the transmission lines. The electric field strengths nearby multi-circuit transmission lines on the same tower under different arrangement of phase sequence, nearby the cross-arm are calculated. According to the foreign and domestic security standards of 50Hz electric field, the impacts of overhead transmission lines on environment are evaluated and the adoptable measures to reduce electric field strength are proposed. Meanwhile the distributing pattern of the electric field nearby the cross-arm is analyzed and proposals for further protection measures during maintenance operation are provided.

Research on the non-contact early warning of dangerous electric field by overhead transmission lines

2017 ◽  
Vol 181 (1) ◽  
pp. 141-150
Author(s):  
Wenbin Zhang ◽  
Nianrong Zhou ◽  
Lijun Tang ◽  
Fagui Qi ◽  
Lei Zhao
Keyword(s):  
Electric Field ◽  
Transmission Lines ◽  
Early Warning ◽  
Overhead Transmission Lines

The effect of floating-potential conductors on the electric field near overhead transmission lines

2012 ◽  
Vol 70 (3) ◽  
pp. 339-345 ◽  
Author(s):  
Deming Yu ◽  
Shuwei Wan ◽  
Fangdong Chen ◽  
Xingming Bian ◽  
Lan Chen ◽  
...  
Keyword(s):  
Electric Field ◽  
Transmission Lines ◽  
Floating Potential ◽  
Overhead Transmission Lines
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