Results 251 to 260 of about 158,128 (305)
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Open Overhead Transmission Lines
Applied Mechanics and Materials, 2015Ultra High-Voltage Overhead Lines (UHV OHL) currently are successfully applied for solving two problems. The first case is powerful interconnection of two or more electric power systems. The second one is transition of significant power flows from generation areas to consuming areas – densely populated urban agglomerations and industrial centers ...
Evgeny Shishkov +2 more
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Vibration of Overhead Transmission Lines
Transactions of the American Institute of Electrical Engineers, 1932STUDIES of vibration of overhead conductors have been prosecuted vigorously for several years in laboratory and fields. The importance of magnitude and distribution of stresses in multiplestrand conductors led to the development of a unique method for measuring stresses in vibrating conductors in the laboratory under conditions closely simulating field
R. A. Monroe, R. L. Templin
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Applications of Optical Fibers for Overhead Transmission Lines
IEEE Journal on Selected Areas in Communications, 1986Optical fibers are increasingly in use for overhead transmission lines. Optical fiber cables for overhead transmission lines can be classified into three types; composite type, winding type, and self-supporting type. For the composite type, an FRP-covered optical fiber unit is suitable because of its good thermal and mechanical characteristics. Winding-
Takao Ikeya, Kouji Yoshida, Mikio Ogai
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Lightning Incidence on Transmission Overhead Lines
2020 21st International Scientific Conference on Electric Power Engineering (EPE), 2020The paper deals with an estimation of lightning strike incidence to transmission overhead lines in the context of line outages gathered from an automatic monitoring system. The statistics of the Czech transmission system's line outages caused by lightning strikes are presented and analyzed.
Pavel Janys, Radek Prochazka
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Overhead transmission lines - refurbishment and developments
Power Engineering Journal, 1994This article summarises the position with regard to National Grid Company's transmission system and the changes to it to meet the rapidly changing demands of electricity generation and transmission in England and Wales. It then outlines NGC's principal objectives for developments relating to overhead lines and comments on how these relate to the latest
J.M. Ferguson, R.R. Gibbon
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Detecting Insulators in the Image of Overhead Transmission Lines
2012Detecting and localizing the insulators automatically are very important to intelligent inspection, which are the prerequisites for fault diagnose. A novel method for insulators detection in the image of overhead transmission lines based on lattice detection is presented in this paper.
Jingjing Zhao +3 more
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Robotic Maintenance of Overhead Transmission Lines
IEEE Power Engineering Review, 1986This paper covers the design, assembly, and field testing of the TOMCAT Component Evaluation Unit (CEU). TOMCAT is an acronym for ?eleoperator for O?perations, M?aintenance, and C?onstruction using A?dvanced ?echnology. The unit was developed in the performance of Phase 2 of EPRI Project No.
John H. Dunlap +2 more
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Maintenance practices for transmission overhead lines
9th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2012), 2012Overhead lines (OHL) operating at 400kV, form the backbone of CLP Power's transmission network. Unlike underground cables, overhead lines are vulnerable to external environmental attacks, such as adverse weather, high humidity, pollution, ground stability, vegetation, and flying objects etc.
M.K. Lee, C.W. Pak
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Span of overhead transmission lines
The calculation tasks of the span length of electrical transmission lines, which are constructed on the basis of ferroconcrete, composite, metal lattice and polyhedral transmission towers, using of approximating functions are considered. The span length is determined with the help of the continuous functions, which allows to search it for any ...Kimstach, O. +2 more
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Conductor optimisation for overhead transmission lines
Proceedings of the Inaugural IEEE PES 2005 Conference and Exposition in Africa, 2006Continuous changes in the cost of suitable (conductive) material for bare overhead conductors, changes in electrical and mechanical requirements, and improvements in manufacturing technology, have resulted in the development of a variety of possible applications or options for overhead transmission lines. In the early days, simple copper wire or copper
D. Dama, D. Muftic, R. Vajeth
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