Results 141 to 150 of about 144,974 (202)
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Electrical Transmission and Substation Structures 2009, 2009
Although close attention is paid to the design of transmission poles, many times the design of the foundation is left up to a rule of thumb method. Reliable and established methods for analyzing laterally loaded piles have been incorporated into the current study to calculate the required depth of embedment for transmission poles, and the results are ...
Cassie McNames, Sivapalan Gajan
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Although close attention is paid to the design of transmission poles, many times the design of the foundation is left up to a rule of thumb method. Reliable and established methods for analyzing laterally loaded piles have been incorporated into the current study to calculate the required depth of embedment for transmission poles, and the results are ...
Cassie McNames, Sivapalan Gajan
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Depth of glass poling - via optical transmission spectra
Optik, 2021Abstract We demonstrate a simple non-destructive technique to deduce the thickness and average index of a modified layer formed beneath a glass surface by thermal poling. It is based on using periodic oscillations in optical transmission of poled glasses, which are due to the reflection of light at the interface of the poled glass region differing in
Ekaterina Babich +3 more
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Reliability Analysis of Wood Transmission Poles
Journal of the Structural Division, 1982The feasibility of probability-based design procedures for electrical transmission lines is discussed. Single pole structures have been selected in this initial study because of their simplicity as well as the lack of consistency in their design procedures.
Alain H. Peyrot +3 more
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Optimal Design of Steel Transmission Poles
Journal of Structural Engineering, 1996Design of steel transmission poles is formulated as an optimization problem by identifying design variables, a cost function, and constraints. Nonlinearities in structural response calculations due to large deflections are included in the formulation.
Fatma Y. Kocer, Jasbir S. Arora
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Analysis of steel transmission pole structures
Computers & Structures, 1978Abstract The possible use of three different numerical methods of structural analysis is investigated for the analysis of guyed and unguyed steel transmission pole structures. These three numerical schemes are (1) method of finite differences, (2) displacement or stiffness matrix method and (3) Newmark's method of successive approximations.
Ashok K. Chugh, S.B. Biggers
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Reliability analysis of pole-type transmission structures
Computers & Structures, 1988Abstract The unguyed single-pole transmission structure is widely used in the U.S. to support transmission lines of up to 345 kV capacity. Most poles are naturally grown wood, but some poles of prestressed concrete and some of steel are used, especially in high decay or high load situations. The resistance of each structure is a random variable which
M.D. Vanderbilt, M.E. Criswell
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Wood-Pole 230-Kv Transmission Lines
Transactions of the American Institute of Electrical Engineers, 1943STEEL has been comparatively cheap in the United States and, until recently, available in quantity. Consequently the use of steel structures for supporting the higher-voltage transmission lines has been favored by transmission engineers. However, since conservation of critical materials has become necessary, it is essential that designs incorporating ...
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Dominant Pole Synthesis of Transmission Line Networks
IEEE Transactions on Microwave Theory and Techniques, 1969This paper describes a procedure for synthesizing transmission networks which are interconnections of uniform line elements. An iterative, digital computer algorithm is developed which achieves a dominant pole synthesis. The line lengths and the characteristic impedances are controlled individually, which gives design flexibility not found in synthesis
S. Mahdi, A.B. Macnee
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DC Pole to Pole Short Circuit Fault Analysis in VSC-HVDC Transmission System
2018 Twentieth International Middle East Power Systems Conference (MEPCON), 2018Voltage Source Converter High Voltage Direct Current (VSC-HVDC) transmission technology is widely used in electrical power transmission over very long distances. Those systems are subjected to different types of faults that have an effect on the electricity deliver continuity and reduce the device reliability. DC line faults are public in HVDC systems,
Sobhy S. Dessouky +3 more
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Transmission steel poles novel arrangement to control the pole EPR under substation fault
2015 Australasian Universities Power Engineering Conference (AUPEC), 2015The increase in population forces High Voltage (HV) substation to be constructed within proximity of residential properties. These substations are fed by transmission mains. Based on existing standards, transmission mains structures have an earth grid that solidly bonded to the substation earth grid using the OHEW system.
M. Nassereddine +3 more
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