Those both show an isolating transformer with a bonded neutral on the secondary side as well as a line filter.
Is the isolating transformer depicted a delta wye? John On 5/30/2012 2:37 PM, andy pugh wrote: > On 30 May 2012 20:19, John Thornton<bjt...@gmail.com> wrote: > >> In that manual after a fault I have 4 status LED's lit up. On page 6-143 >> the bottom 4 LED's are lit. Which one caused the fault I can't tell. > Line Supply Fault and DC Overvoltage sound possible. > >> The machine schematic does not show a neutral connected at the stepup >> transformer > True, it is unconnected in Fig 7.3, but that also shows a power supply > with a PEN. > > If you look at 7.4 and 7.5 those both show an isolating transformer > with the output neutral earthed. > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
