Research on safety distance in live operation with helicopter and hanging basket on 500KV transmission line

2017 ◽  
Author(s):  
Yi Wu ◽  
Weidong Liu ◽  
Yujian Ding ◽  
Jian Shen
Keyword(s):  
Transmission Line ◽  
Safety Distance

Analysis of Live Working Safety Distance for 750kV Double Circuit Transmission Line in Different Altitude Areas

2014 ◽  
Vol 986-987 ◽  
pp. 227-230
Author(s):  
Hui Sun ◽  
Yu Jian Ding ◽  
Qing Xie
Keyword(s):  
Transmission Line ◽  
Working Conditions ◽  
Test Data ◽  
Safety Distance ◽  
Analysis Methods ◽  
The Common ◽  
Low Altitude

In order to determine the required live working safety distance for 750kV double circuit transmission line in different altitude areas of China, by using the test data of 750kV double circuit transmission line in the low altitude areas, and combining the common altitude correction methods, the live working safety distances of different altitude correction methods are obtained. By comparing and analyzing the results of different analysis methods, the required minimum approach distances and minimum combined gap distances of live working are recommended under different working conditions in the altitude of 1000m ~ 5000m areas. The results could provide technical reference for 750kV double circuit transmission line in different altitude areas.

Composite right/left-handed transmission line with array of thermocouples for generating terahertz radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20502
Author(s):  
Behrokh Beiranvand ◽  
Alexander S. Sobolev ◽  
Anton V. Kudryashov
Keyword(s):  
Transmission Line ◽  
Terahertz Radiation ◽  
Transmission Lines ◽  
Software Package ◽  
Optical Pulses ◽  
Capacitively Coupled ◽  
Voltage Difference ◽  
Left Handed ◽  
Microwave Transmission ◽  
Commercial Software Package

We present a new concept of the thermoelectric structure that generates microwave and terahertz signals when illuminated by femtosecond optical pulses. The structure consists of a series array of capacitively coupled thermocouples. The array acts as a hybrid type microwave transmission line with anomalous dispersion and phase velocity higher than the velocity of light. This allows for adding up the responces from all the thermocouples in phase. The array is easily integrable with microstrip transmission lines. Dispersion curves obtained from both the lumped network scheme and numerical simulations are presented. The connection of the thermocouples is a composite right/left-handed transmission line, which can receive terahertz radiation from the transmission line ports. The radiation of the photon to the surface of the thermocouple structure causes a voltage difference with the bandwidth of terahertz. We examined a lossy composite right/left-handed transmission line to extract the circuit elements. The calculated properties of the design are extracted by employing commercial software package CST STUDIO SUITE.

Choke-Supported Tri-plate Transmission Line Filter for Loss Reduce Technique

2013 ◽  
Vol 133 (5) ◽  
pp. 957-961
Author(s):  
Yasuyoshi Okita ◽  
Futoshi Kuroki ◽  
Yuki Kawahara
Keyword(s):  
Transmission Line
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