Galvanic disconnection with transformer
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From: Bob Masta on 29 Mar 2010 09:20 On Mon, 29 Mar 2010 10:14:20 +0300, Kari Laine <klaine8(a)gmail.com> wrote: >George Herold wrote: >> Thanks for the picture JF, I'm fairly ignorant about power >> electronics. I have a question about where the third pin (AC) ground >> is connected into the system? >> >> thanks again, >> >> George H. > >Thanks also. I think I should get a book about these things. > >any good one? Kari: Note that these responses have been assuming US-type wiring standards. I don't know anything about the standards where you are, but I suspect you have 240 only, no 120 ground. I assume that one side of the 240 is always grounded, but make sure that whatever book or reference you consult is for the system in your own area. Best regards, Bob Masta DAQARTA v5.10 Data AcQuisition And Real-Time Analysis www.daqarta.com Scope, Spectrum, Spectrogram, Sound Level Meter Frequency Counter, FREE Signal Generator Pitch Track, Pitch-to-MIDI DaqMusic - FREE MUSIC, Forever! (Some assembly required) Science (and fun!) with your sound card!
From: John Fields on 29 Mar 2010 09:13
On Mon, 29 Mar 2010 10:14:20 +0300, Kari Laine <klaine8(a)gmail.com> wrote: >George Herold wrote: >> Thanks for the picture JF, I'm fairly ignorant about power >> electronics. I have a question about where the third pin (AC) ground >> is connected into the system? >> >> thanks again, >> >> George H. > >Thanks also. I think I should get a book about these things. > >any good one? --- The NEC: http://en.wikipedia.org/wiki/National_Electrical_Code#Public_access_to_the_NEC JF |