41606357-Impulse-Generator-Thesis

41606357-Impulse-Generator-Thesis - AN IMPULSE GENERATOR...

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Unformatted text preview: AN IMPULSE GENERATOR SIMULATION CIRCUIT by Steven E Meiners B.S. in EET, Miami University, 1977 Submitted to the Graduate Faculty of the School of Engineering in partial fulfillment of the requirements for the degree of Master of Science of Electrical Engineering University of Pittsburgh 2002 UNIVERSITY OF PITTSBURGH SCHOOL OF ENGINEERING This thesis was presented by Steven E. Meiners It was defended on November 25, 2002 and approved by J. R. Boston, Professor, Electrical Engineering H. K. Kim, Professor, Electrical Engineering Thesis Advisor: R. G. Colclaser, Professor, Electrical Engineering ii ABSTRACT AN IMPULSE GENERATOR SIMULATION CIRCUIT Steven E Meiners, MSEE University of Pittsburgh, 2002 This thesis describes the creation of a simulation circuit to match the output of a Marx type Impulse Generator. The goal was to estimate the stray capacitance and insert that capacitance into the simulation circuit to effectively produce an output similar to that of the generator. An actual three-stage impulse generator was used as the base. Several different levels of impulse voltage were tested, and the output waveforms were captured. Research was conducted to formulate the stray capacitance and identify the locations of these capacitances in the generator itself. The simulation circuit was then subjected to several iterations, adjusting the capacitance values to attain an output as close as possible to that of the actual generator. Conclusions of the research indicate that an effective simulation circuit can be created to give an output that is close to, but not exactly that of, the actual generator. In the research, several areas of error were identified in the actual generator that were not present in the simulation circuit. These areas are discussed in the thesis. iii ACKNOWLEDGEMENTS I wish to thank the Cutler-Hammer Technology & Quality Center and the PDAD Division, Mr. Robert Yanniello and Mr. Robert Towne for the Lab support in the experimental portion of this work. I would like to thank Dr. Colclaser for his support and assistance in writing this thesis. I would like to thank Mr. James Jamison for his assistance in conducting the multiple impulse tests. Finally, I would like to thank my wife and children for their unwavering support in not only completion of this thesis but the many hours devoted away from them in course work. Without the support of those mentioned above, this thesis and MS degree completion would not have happened. iv TABLE OF CONTENTS Page LIST OF TABLES …………………………………………………………… vii LIST OF FIGURES …………………………………………………………… viii 1.0 HISTORY AND BACKGROUND ……………………………………. 1 1.1 Introduction …………………………………………………………… 1 1. 2 Background High Voltage Impulse Testing …………………………… 2 1. 3 Impulse Generator and Equipment ……………………………………...
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41606357-Impulse-Generator-Thesis - AN IMPULSE GENERATOR...

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