From fu at ece.msstate.edu Sun Apr 24 16:54:41 2011 From: fu at ece.msstate.edu (Yong Fu) Date: Sun Apr 24 16:54:51 2011 Subject: [ece4633] Re: Power Distribution Homework Question In-Reply-To: Message-ID: <9826556.1831303682081182.JavaMail.root@zimbra.ece.msstate.edu> Steven, I think that the neutral impedance of problems 8.38 and 8.39 is zero. Thanks. Yong ==================================================== Yong Fu, Ph.D. Assistant Professor Department of Electrical and Computer Engineering Mississippi State University Room 239 Simrall Bldg. 406 Hardy Rd., P.O. Box 9571 Mississippi State, MS 39762 Phone: 662-325-3878 Fax: 662-325-2298 Homepage: http://www.ece.msstate.edu/~fu ==================================================== ----- Original Message ----- From: "Steven Gates" To: "Yong Fu" Sent: Friday, April 22, 2011 8:36:55 PM GMT -06:00 US/Canada Central Subject: Power Distribution Homework Question Dr. Fu, I have a question about problems 8.38 and 8.39 in our homework. Why don't we draw the impedance 3*Zn in our zero sequence network for either of the problems? Every example we have done in class and in the book has 3*Zn drawn. Can you explain? Thanks. Steven Gates From fu at ece.msstate.edu Sun Apr 24 19:29:37 2011 From: fu at ece.msstate.edu (Yong Fu) Date: Sun Apr 24 19:29:47 2011 Subject: [ece4633-01] [ece4633] Re: Power Distribution Homework Question In-Reply-To: <7871669.1881303691285804.JavaMail.root@zimbra.ece.msstate.edu> Message-ID: <16979432.1901303691377573.JavaMail.root@zimbra.ece.msstate.edu> Harry, Are you sure your problem is for problem 9.13? Could you please explain a little bit? Yong ==================================================== Yong Fu, Ph.D. Assistant Professor Department of Electrical and Computer Engineering Mississippi State University Room 239 Simrall Bldg. 406 Hardy Rd., P.O. Box 9571 Mississippi State, MS 39762 Phone: 662-325-3878 Fax: 662-325-2298 Homepage: http://www.ece.msstate.edu/~fu ==================================================== ----- Original Message ----- From: "Harry Corey" To: "Yong Fu" Cc: "Steven Gates" , "ece4633" Sent: Sunday, April 24, 2011 7:18:28 PM GMT -06:00 US/Canada Central Subject: Re: [ece4633-01] [ece4633] Re: Power Distribution Homework Question Dr. Fu, Why did you add 180 degrees to the Vb and Vc on problem 9.13? On Sun, Apr 24, 2011 at 4:54 PM, Yong Fu < fu@ece.msstate.edu > wrote: Steven, I think that the neutral impedance of problems 8.38 and 8.39 is zero. Thanks. Yong ==================================================== Yong Fu, Ph.D. Assistant Professor Department of Electrical and Computer Engineering Mississippi State University Room 239 Simrall Bldg. 406 Hardy Rd., P.O. Box 9571 Mississippi State, MS 39762 Phone: 662-325-3878 Fax: 662-325-2298 Homepage: http://www.ece.msstate.edu/~fu ==================================================== ----- Original Message ----- From: "Steven Gates" < sbg71@msstate.edu > To: "Yong Fu" < fu@ece.msstate.edu > Sent: Friday, April 22, 2011 8:36:55 PM GMT -06:00 US/Canada Central Subject: Power Distribution Homework Question Dr. Fu, I have a question about problems 8.38 and 8.39 in our homework. Why don't we draw the impedance 3*Zn in our zero sequence network for either of the problems? Every example we have done in class and in the book has 3*Zn drawn. Can you explain? Thanks. Steven Gates _______________________________________________ ece4633 mailing list ece4633@ece.msstate.edu http://www.ece.msstate.edu/mailman/listinfo/ece4633 _______________________________________________ ece4633-01 mailing list ece4633-01@ece.msstate.edu http://www.ece.msstate.edu/mailman/listinfo/ece4633-01