Transmission Line Worksheet Tutorial Quarter （输电线路工作表教程）.pdf

Transmission Line Worksheet Tutorial Martin J. King 40 Dorsman Dr. Clifton Park, NY 12065 MJKing57@ Transmission Line Worksheet Tutorial By Martin J. King, 7/03/09 Copyright © 2009 by Martin J. King. All Rights Reserved. Introduction : My website has been on the Internet for about seven years and the number of visits has surpassed 500,000. This is well beyond any of my wildest expectations when I first uploaded the website on July 17, 2002. If I try and estimate how many people are actually using my MathCad transmission line worksheets, I can only make a guess based on a few simplifying assumptions. There were approximately 275,000 visits to my site when the MathCad worksheets were free. Assume that one in one hundred of these visits downloaded the free version of the MathCad worksheets. I assume this recognizing that some people take a quick look at the site while others return many times to read and digest what I have presented. But if we stick with this assumption and add the licensed users of the upgraded worksheets that have been available for the past few years, it means that approximately 3,000 people have tried the MathCad worksheets. This is a significant number of users and I believe that this estimate is very low. Based on the types of responses and questions I have received via e-mail, I know that the population using the worksheets is quite diverse in their technical/mathematical capabilities. I have heard from high school students, car mechanics, meteorologist