On Wed, 26 Nov 2008 17:37:55 -0800 Jim Cathey <[EMAIL PROTECTED]> wrote:
> Today I finally got around to making a chronological list > of all log entries on my site. It's automatic, using a > script (doupdate) > .... > http://userweb.windwireless.net/~jimc/chronolog.html Nifty work. I won't bother to try to decipher the shell script, though you have some nice things in there. I clicked on your link and noticed you had done some recent work on your genset. After reading the entry for today, I read the entry for Wednesday, October 29, 2008. In it, you say, I'm also wondering if kVA (and by extension, Power Factor) meter reading(s) can be derived? The kVA is probably possible by using the multiplying wattage circuit but feeding it the averaged voltage (for the voltmeter) instead of the instantaneous line voltage. Power Factor is just W - kVA, subtraction is easy in the analog domain. Worth some thinking about, but the switching and meter faces could get complicated, and this board is starting to get large already. Unfortunately, you can't use subtraction. W W = PF * VA => PF = ---- VA Craig _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
