John, I think Andy was assuming that this power generator would be backup for mains outages when, if the switchover were to be automatic and seamless, it would indeed to essential to get the generator frequency very close to mains frequency and, more importantly, the phases in the correct rotational relationship before switch back to the mains. It took ages for the supplier's techs to get this right on the 2 x 1100Hp deisel gennys I had at work....
If this genny is to completely stand-alone off in the woods somewhere - I don't really see why it needs tying to any major time standard - what's going to power a PC while the genny gets up and running anyway....? Normally engine governors or feedback electronics should keep the frequency within limits anyway - hell, I've seen our mains frequency vary from 47 to 54 Hz over the day many times depending on the load and no one ever complains....... Ian _____________________ Ian W. Wright Sheffield UK ------------------------------------------------------------------------------ Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! Tap into the largest installed PC base & get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
