Electric field evaluation of 400kV overhead transmission lines on the earth surface

2010 ◽  
Author(s):  
H. Javadi ◽  
A. Mobarhani ◽  
A. Ameli
Keyword(s):  
Electric Field ◽  
Transmission Lines ◽  
Field Evaluation ◽  
Earth Surface ◽  
Overhead Transmission Lines ◽  
The Earth

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

scholarly journals Adjoint Method Applied in Optimization of the Overhead Transmission Lines Configuration

2021 ◽  
Author(s):  
André Luiz Paganotti ◽  
Márcio Matias Afonso ◽  
Marco Aurélio de Oliveira Schroeder ◽  
Rodney R. Saldanha ◽  
Marielle J. da Silva
Keyword(s):  
Electric Field ◽  
Transmission Lines ◽  
Gradient Method ◽  
Adjoint Method ◽  
Ground Level ◽  
Optimization Process ◽  
Energy Capacity ◽  
Overhead Transmission Lines

In this paper, a new methodology is applied for the optimization process of the geometry of the bundle of conductors of the overhead transmission lines. This methodology is based on the application of the Adjoint Method to calculate the sensitivity of the parameters related to the charge electric of the transmission lines. This information is used with a Gradient Method and a Gold Section algorithm for the minimize the electric field at ground level. The Surge Impedance Loading is calculated after the optimization process for check improvements in energy capacity transportation.

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