On Monday, October 17, 2011 05:25:29 AM Erik Christiansen did opine: > On 17.10.11 18:21, Erik Christiansen wrote: > > X = 47 uF (X2 type) > > WHOOPS! Orders of magnitude alarm! Potential for explosion. (Not > kidding) > > That is in reality 0.47 uF. > =========================== > > The print on the filter (.47 uF) is fine, my eyes are two decades > younger than Gene's, but probably not as acute,
Thanks for the flowers but I missed that too. We have capacitors in that size range used in capacitor run motors here in the states, but those puppies are about beer can sized too. > and I posted before > stopping to think that a 47 uF non-polarised high voltage cap wouldn't > leave a lot of room for the other bits in the fist-sized sealed metal > box. > > What's more important is that the impedance of 47 uF at 50 Hz is only: > > 1/(2*pi*50*47*10^-6) > = 68 Ohms. > > Connected directly across the mains, the electrolyte would boil, and the > capacitor would rupture messily or violently, depending on supply > voltage. > > Sorry about the missing decimal point. > > Erik Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) The opulence of the front office door varies inversely with the fundamental solvency of the firm. ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
