Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > sci.electronics.design > #435264
| From | John S <Sophi.2@invalid.org> |
|---|---|
| Newsgroups | sci.electronics.design |
| Subject | Re: Single or double pole mains switch in USA? |
| Date | 2016-11-12 20:10 -0600 |
| Organization | A noiseless patient Spider |
| Message-ID | <o08i16$33e$8@dont-email.me> (permalink) |
| References | (6 earlier) <MPG.3291156f63155ddd989f85@news.eternal-september.org> <o07naa$33e$2@dont-email.me> <MPG.329151c86d9cea08989f89@news.eternal-september.org> <o08gnb$33e$6@dont-email.me> <srhf2c9e3tl0kmb5t47u7b9655bdr5lsfq@4ax.com> |
On 11/12/2016 7:56 PM, krw wrote: > On Sat, 12 Nov 2016 19:48:13 -0600, John S <Sophi.2@invalid.org> > wrote: > >> On 11/12/2016 3:20 PM, M Philbrook wrote: >>> In article <o07naa$33e$2@dont-email.me>, Sophi.2@invalid.org says... >>>> >>>> On 11/12/2016 11:03 AM, M Philbrook wrote: >>>>> In article <xn60nt2y7f.fsf@delorie.com>, dj@delorie.com says... >>>>>> >>>>>> John S <Sophi.2@invalid.org> writes: >>>>>>>>> 2 phase? Please educate me on this. I know that single phase and 3 phase >>>>>>>>> are common, but I have never encountered 2 phase. >>>>>>>> >>>>>>>> really? >>>>>>>> >>>>>>>> two leads 90 degree shift.. >>>>>>> >>>>>>> How often have you encountered a mains supply with 90 degree phase >>>>>>> shift, smart ass? >>>>>> >>>>>> Nikolas Tesla invented it long ago. Just because it isn't used for >>>>>> mains *now* doesn't mean he can't know what it is. >>>>>> >>>>>> Also, it's what stepper motors use, and we encounter those every day. >>>>>> >>>>>> Also, he didn't mention "mains" in that follow-up. >>>>>> >>>>>> Also, replying to pedantry with jackassery is lame. >>>>>> (whereas the opposite is just plain fun ;-) >>>>> >>>>> actually there is an old place near me that uses 2 phase power./ >>>>> >>>>> Jamie >>>>> >>>> >>>> Does the old place generate its own power? The power company does not >>>> provide two phase power. >>> >>> Yes, they have both a water generation plant and scott connection >>> transformers from commercial 3 phase to fill in when they need it. >>> >>> Jamie >>> >> >> So it is not 2 phase, it is 3 phase with a lame connection. > > No, he said 2-phase. The Scott-T is used to transform three-phase, as > supplied by the power company, into the 2-phase this old installation > requires. >> >> Please explain how it is used without the fill-in. Two phase motors? >> Note that three phase is completely different from two phase. The phases >> are 120 degrees apart in 3 phase (with a common reference which requires >> 3 wires) whereas 2 phase is 90 degrees apart (also requiring 3 wires), >> even according to you. Why would they use a Scott-T when 3 phase is >> already available. Pretty stupid -- just like you. > > Because "he" needs two-phase and only three-phase is available from > the power company, thus the Scott-T. He is pretty clear, here. What is the advantage of two phase power? >> If you don't believe me, set up a simple LTSpice schematic and run it. >> It will teach you things you obviously do not know. > > You should do some research. I worked with single/three phase power mains for 17 years. I suggest you do some research as well. After that we can compare notes.
Back to sci.electronics.design | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Single or double pole mains switch in USA? Syd Rumpo <usenet@nononono.co.uk> - 2016-11-08 09:41 +0000
Re: Single or double pole mains switch in USA? jrwalliker@gmail.com - 2016-11-08 06:10 -0800
Re: Single or double pole mains switch in USA? John Larkin <jjlarkin@highlandtechnology.com> - 2016-11-08 06:29 -0800
Re: Single or double pole mains switch in USA? Martin Riddle <martin_ridd@verizon.net> - 2016-11-08 11:55 -0500
Re: Single or double pole mains switch in USA? Martin Riddle <martin_ridd@verizon.net> - 2016-11-08 11:56 -0500
Re: Single or double pole mains switch in USA? Martin Riddle <martin_ridd@verizon.net> - 2016-11-08 11:58 -0500
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-08 11:05 -0600
Re: Single or double pole mains switch in USA? krw <krw@nowhere.com> - 2016-11-08 12:48 -0500
Re: Single or double pole mains switch in USA? jurb6006@gmail.com - 2016-11-08 10:46 -0800
Re: Single or double pole mains switch in USA? M Philbrook <jamie_ka1lpa@charter.net> - 2016-11-08 17:22 -0500
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-11 20:22 -0600
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-11 20:26 -0600
Re: Single or double pole mains switch in USA? DJ Delorie <dj@delorie.com> - 2016-11-11 22:07 -0500
Re: Single or double pole mains switch in USA? M Philbrook <jamie_ka1lpa@charter.net> - 2016-11-12 12:03 -0500
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-12 12:34 -0600
Re: Single or double pole mains switch in USA? M Philbrook <jamie_ka1lpa@charter.net> - 2016-11-12 16:20 -0500
Re: Single or double pole mains switch in USA? pedro <me@privacy.net> - 2016-11-13 09:32 +0800
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-12 19:52 -0600
Re: Single or double pole mains switch in USA? Jasen Betts <jasen@xnet.co.nz> - 2016-11-13 05:11 +0000
Re: Single or double pole mains switch in USA? M Philbrook <jamie_ka1lpa@charter.net> - 2016-11-13 13:07 -0500
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-13 16:44 -0600
Re: Single or double pole mains switch in USA? krw <krw@somewhere.com> - 2016-11-13 18:13 -0500
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-12 19:48 -0600
Re: Single or double pole mains switch in USA? krw <krw@somewhere.com> - 2016-11-12 20:56 -0500
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-12 20:10 -0600
Re: Single or double pole mains switch in USA? Jasen Betts <jasen@xnet.co.nz> - 2016-11-13 04:57 +0000
Re: Single or double pole mains switch in USA? upsidedown@downunder.com - 2016-11-13 11:07 +0200
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-13 09:57 -0600
Re: Single or double pole mains switch in USA? krw <krw@somewhere.com> - 2016-11-13 18:14 -0500
Re: Single or double pole mains switch in USA? upsidedown@downunder.com - 2016-11-14 21:19 +0200
Re: Single or double pole mains switch in USA? krw <krw@somewhere.com> - 2016-11-14 19:54 -0500
Re: Single or double pole mains switch in USA? upsidedown@downunder.com - 2016-11-15 09:55 +0200
Re: Single or double pole mains switch in USA? Glen Walpert <nospam@null.void> - 2016-11-15 17:55 +0000
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-14 17:39 -0600
Re: Single or double pole mains switch in USA? krw <krw@somewhere.com> - 2016-11-14 19:55 -0500
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-14 17:46 -0600
Re: Single or double pole mains switch in USA? krw <krw@somewhere.com> - 2016-11-14 19:56 -0500
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-15 17:00 -0600
Re: Single or double pole mains switch in USA? krw <krw@somewhere.com> - 2016-11-15 19:20 -0500
Re: Single or double pole mains switch in USA? upsidedown@downunder.com - 2016-11-12 20:53 +0200
Re: Single or double pole mains switch in USA? jurb6006@gmail.com - 2016-11-13 10:50 -0800
Re: Single or double pole mains switch in USA? jurb6006@gmail.com - 2016-11-13 10:58 -0800
Re: Single or double pole mains switch in USA? John S <Sophi.2@invalid.org> - 2016-11-12 12:31 -0600
Re: Single or double pole mains switch in USA? krw <krw@nowhere.com> - 2016-11-08 12:46 -0500
Re: Single or double pole mains switch in USA? jurb6006@gmail.com - 2016-11-08 10:40 -0800
Re: Single or double pole mains switch in USA? krw <krw@somewhere.com> - 2016-11-08 19:13 -0500
Re: Single or double pole mains switch in USA? whit3rd <whit3rd@gmail.com> - 2016-11-08 10:50 -0800
Re: Single or double pole mains switch in USA? Syd Rumpo <usenet@nononono.co.uk> - 2016-11-09 14:06 +0000
Re: Single or double pole mains switch in USA? Jasen Betts <jasen@xnet.co.nz> - 2016-11-12 07:05 +0000
csiph-web