rubinstein marcos (16 Ergebnisse)

Zustand: New. In.

Zustand: New. In.

hardcover. Zustand: Fine. Slight scratches to cover. Appears unread, may have minor superficial marking. Next day dispatch from the UK (Mon-Fri). Please contact us with any queries.

Zustand: Sehr gut. Zustand: Sehr gut | Seiten: 300 | Sprache: Englisch | Produktart: Bücher | Abstract: Measurements are presented and characterized of vertical electric fields 500 m from artificially initiated lightning return strokes and of voltages induced at both ends of a 448 m distribution power line by the same discharges, which are about 20 m from one end of the line. The experiment, which took place during the summer of 1986 at the NASA Kennedy Space Center, is described. The measured line voltages could be grouped into two categories, those in which multiple, similarly shaped, evenly spaced pulses were observed, which we call oscillatory, and those dominated by a principal pulse with subsidiary oscillations of much smaller amplitude, which we call impulsive. Voltage amplitudes range from tens of kilovolts for oscillatory voltages to hundreds of kilovolts for impulsive voltages. Contrary to what was expected, the voltage at the transmission line and farther from the lightning was found to be considerably larger than the voltage at the end nearer to the lightning. A new technique is derived for the calculation of the electromagnetic fields from nearby lightning over an imperfectly conducting ground. This technique is used in conjunction with a time domain coupling theory to calculate voltages at either end of the line. The results show fair agreement with the measured oscillatory voltage waveforms if corona is ignored and improved results when corona effects are modeled. Reasonable wave shape agreement is obtained for voltages of the impulsive type when these are modeled by the introduction of non-linear flashover effects, although unrealistically high return stroke currents are required to obtain good amplitude agreement. Suggestion for future experiments are given in the light of the present experience in measuring electric fields and their associated voltages from very close lightning. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Voltages Induced on a Test Power Line From Artifically Initiated Lightening" by Marcos Rubinstein, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.

Zustand: Sehr gut. Zustand: Sehr gut | Seiten: 300 | Sprache: Englisch | Produktart: Bücher | Abstract: Measurements are presented and characterized of vertical electric fields 500 m from artificially initiated lightning return strokes and of voltages induced at both ends of a 448 m distribution power line by the same discharges, which are about 20 m from one end of the line. The experiment, which took place during the summer of 1986 at the NASA Kennedy Space Center, is described. The measured line voltages could be grouped into two categories, those in which multiple, similarly shaped, evenly spaced pulses were observed, which we call oscillatory, and those dominated by a principal pulse with subsidiary oscillations of much smaller amplitude, which we call impulsive. Voltage amplitudes range from tens of kilovolts for oscillatory voltages to hundreds of kilovolts for impulsive voltages. Contrary to what was expected, the voltage at the transmission line and farther from the lightning was found to be considerably larger than the voltage at the end nearer to the lightning. A new technique is derived for the calculation of the electromagnetic fields from nearby lightning over an imperfectly conducting ground. This technique is used in conjunction with a time domain coupling theory to calculate voltages at either end of the line. The results show fair agreement with the measured oscillatory voltage waveforms if corona is ignored and improved results when corona effects are modeled. Reasonable wave shape agreement is obtained for voltages of the impulsive type when these are modeled by the introduction of non-linear flashover effects, although unrealistically high return stroke currents are required to obtain good amplitude agreement. Suggestion for future experiments are given in the light of the present experience in measuring electric fields and their associated voltages from very close lightning. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Voltages Induced on a Test Power Line From Artifically Initiated Lightening" by Marcos Rubinstein, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.

Gebunden. Zustand: New. The aim of this book is to familiarize the reader with the concept of electromagnetic time reversal, and introduce up-to-date applications of the concept found in the areas of electromagnetic compatibility and power systems.&Uumlber den Autor.

Hardcover. Zustand: Brand New. 288 pages. 9.00x6.00x0.50 inches. In Stock.

Zustand: New. In.

Zustand: New. KlappentextUnderstanding lightning is of importance due to the increase in extreme weather events. The 2nd edition of this classic work has been thoroughly updated and revised, with new content on EM radiation at various wavelengths. .

Hardcover. Zustand: Brand New. 2nd edition. 600 pages. 9.50x6.50x1.25 inches. In Stock.

Zustand: New. In.

Hardcover. Zustand: Brand New. 2nd edition. 800 pages. 9.50x6.50x1.75 inches. In Stock.

Buch. Zustand: Neu. Neuware - 'This book is intended to give the theoretical foundation of the electromagnetic time reversal theory. Special emphasis is given on real applications in the fields of EMC and power systems'--.

Zustand: New. KlappentextUnderstanding lightning is of importance due to the increase in extreme weather events. The 2nd edition of this classic work has been thoroughly updated and revised, with new content on EM radiation at various wavelengths. .

Buch. Zustand: Neu. Neuware - Understanding lightning is of importance due to the increase in extreme weather events. The 2nd edition of this classic work has been thoroughly updated and revised, with new content on EM radiation at various wavelengths. Volume 1 treats electrodynamics, whilst volume 2 addresses effects and modelling.

Buch. Zustand: Neu. Neuware - Understanding lightning is of importance due to the increase in extreme weather events. The 2nd edition of this classic work has been thoroughly updated and revised, with new content on EM radiation at various wavelengths. Volume 1 treats electrodynamics, whilst volume 2 addresses effects and modelling.