Ground based robots for energized transmission line work-technology description, field projects and technical-economical justification of their application

2010 ◽  
Author(s):  
David Elizondo ◽  
Thomas Gentile ◽  
Hans Candia ◽  
Greggory Bell
Keyword(s):  
Transmission Line ◽  
Line Work ◽  
Description Field

Experimental study on minimum approach distances and complex gaps for helicopter live-line work on 1000kV transmission line

2016 ◽  
Author(s):  
Yong Peng Yong Peng ◽  
Ting Liu Ting Liu ◽  
Ziming Su Ziming Su ◽  
Kai Liu Kai Liu ◽  
Bin Xiao Bin Xiao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Transmission Line ◽  
Line Work

scholarly journals Incorporating Open/Free GIS and GPS Software in Power Transmission Line Routine Work: The Case of Crete and Rhodes

2017 ◽  
Vol 7 (1) ◽  
pp. 1316-1322 ◽  
Author(s):  
D. Pylarinos ◽  
I. Pellas
Keyword(s):  
Power Systems ◽  
Transmission Line ◽  
Power Transmission ◽  
Geographical Information ◽  
Routine Work ◽  
Global Positioning ◽  
Line Work ◽  
User Friendly ◽  
Planning And Operation

Geographical Information System (GIS) and Global Positioning System (GPS) software are widely gaining attention in power system planning and operation. Although commercial systems are increasingly being incorporated in power systems applications, they are yet to be fully incorporated in the routine work of utilities (and especially in the work of crews), due to several reasons such as cost, portability, connectivity, performance/speed, infrastructure etc. This paper focuses on incorporating certain open/free GIS and GPS software in routine transmission line work. The case study is the 150kV transmission systems of the Greek islands of Crete and Rhodes which show increased complexity due to certain localized factors such as Greek legislation, the diverse terrain/routes, the segmented design due to the network’s growth over the years (regarding both voltage levels and routes) and the use of different Coordinate Reference Systems (or Geodetic Systems) from the Greek state. The main goals of this work was to incorporate open/free software that provided limitless online access points, offline navigation and a user friendly design that wouldn’t require any additional training, programming etc. The basic scheme described in this paper can be followed to provide similar results in other applications.

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.

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