Structural Optimization and Electric Field Analysis on the Insulation Structure of UHDV Wall Bushing

2013 ◽  
Vol 732-733 ◽  
pp. 1052-1055
Author(s):  
Yu Mei Li ◽  
Tao Ding ◽  
Zong Tao Chen
Keyword(s):  
Field Strength ◽  
Electric Field ◽  
Silicone Rubber ◽  
Field Analysis ◽  
Design Solution ◽  
Insulating Material ◽  
External Insulation ◽  
Field Simulation ◽  
Dual Plate ◽  
Electric Field Analysis

The insulation mechanism of UHVDC wall bushing is discussed. Design solution of the insulation structure is determined. In the solution, internal insulation includes SF6 gas-insulated and shielding structure, and external insulation is a type of composite insulating material, which is made up of epoxy FRP pipe and silicone rubber sheds. Creepage distance of external insulation and two types of shielding structures are designed in the paper. Finally two types of shielding structure are compared and optimized based on electric field simulation, and the result shows that dual-plate grounded shielding can enable the electric field strength of UHVDC wall bushing more evenly distributed.

3D electric field analysis of needleless electrospinning from a ring coil

2013 ◽  
Vol 44 (3) ◽  
pp. 463-476 ◽  
Author(s):  
Xin Wang ◽  
Xungai Wang ◽  
Tong Lin
Keyword(s):  
Field Strength ◽  
Electric Field ◽  
Electric Field Strength ◽  
Strong Electric Field ◽  
Field Analysis ◽  
Field Profile ◽  
Element Analysis ◽  
Needleless Electrospinning ◽  
Electric Field Analysis ◽  
Electric Field Profile

Concentrated electric field is crucial in generation of needleless electrospinning, the electric field profile together with electric field strength of the spinneret affect the needleless electrospinning performance directly. Understanding the electric field of spinneret would definitely benefit the designing and optimization of needleless electrospinning. Based on the software COMSOL Multiphysics 3.5a, 3D finite element analysis has been used to analyze the electric field profile and electric field strength of a ring spinneret for needleless electrospinning. The electric field profile shows that strong electric field concentrates on the top of the ring with intensity higher than 70 kV/cm. The electric field of ring spinneret is greatly affected by the geometry of the ring and other experimental parameters such as applied voltage and collecting distance. The electric field analysis introduced in this study will be helpful in selecting proper spinneret and scaling up the production rate of nanofibers in needleless electrospinning.

Transient Electric Field Analysis in Consideration of the Electric Field Dependence of Resistivity in the Converter Transformer

2015 ◽  
Vol 135 (12) ◽  
pp. 731-736
Author(s):  
Takuma Terakura ◽  
Kei Takano ◽  
Takanori Yasuoka ◽  
Shigekazu Mori ◽  
Osamu Hosokawa ◽  
...  
Keyword(s):  
Electric Field ◽  
Field Dependence ◽  
Field Analysis ◽  
Electric Field Dependence ◽  
Electric Field Analysis ◽  
Transient Electric Field

Electric Field Analysis of 220 kV Composite Material Tower Lines

2012 ◽  
Vol 516-517 ◽  
pp. 1517-1520
Author(s):  
Jian Xun Hu ◽  
Gong Da Zhang ◽  
Hong Yu Zhang ◽  
Xiao Qin Zhang
Keyword(s):  
Composite Material ◽  
Electric Field ◽  
Field Distribution ◽  
Transmission Lines ◽  
Electric Field Distribution ◽  
Field Analysis ◽  
Electric Field Effect ◽  
Transmission Tower ◽  
Element Analysis ◽  
Electric Field Analysis

Using the finite element analysis, this work analyzed the electric field distribution of 220kV transmission steel tower with double-circuit and composite material transmission tower with the same size, and compared the electric field effect of two materials transmission tower for surroundings. And this work compared the vertical and axial electric field distribution along transmission line of the two materials transmission tower. The results indicate the composite material tower can improve the environment of electric field near the transmission lines.

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