[Home][2021 Index] [TCML] Re: Variac troubles [Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[TCML] Re: Variac troubles

Chris, that was extremely informative, thank you.  Gonna have to crack open my text book and remember more 3 phase theory I forgot years ago.Cheers, JaySent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chris Reeland <chrisreeland@xxxxxxxxx> Date: 8/9/21  1:16 PM  (GMT-05:00) To: tcml@xxxxxxxxxxxxxxx Subject: [TCML] Re: Variac troubles Hi Jay,I am going to attach (link) 3 pictures of a General Radio handbook ofVariacs related to 3 phase use, which should help to understand what isgoing on.https://photos.app.goo.gl/fdVMdSUqBmRwz1Ao8Took me a bit to find this handbook in my "mountain of good junk" around athome :^)Chris ReelandLadd Illinois USASent from my Samsung Galaxy Tab® SOn Mon, Aug 9, 2021, 8:16 AM Lux, Jim <jim@xxxxxxxxxxxxx> wrote:> On 8/8/21 5:59 PM, jhowson4 wrote:> > Ok,Im thinking Bert is correct. I was infact able to power on at> 120v. I'm curious now if I can power it up at 208 (ie the line to neutral> voltage in a 240Y system) kind of odd to have a part number implying 120> operation, but a label implying 240v operation.I think ill call the company> and ask for more info. Note: after peaking under the hood,this variac has> no additional taps.The name plate is obvious,Simple diagram,  3 screw> lugs.1 wired to the beginning of the coil2 is the wiper3 is wired at about> 75% of the coil1 and 3 are connected to the strange little transformer> cores, which arnt paralleling chokes (no interconnection to the other> cores) I'll update again with any useful info I may find. -JaySent from my> Verizon, Samsung Galaxy smartphone>> 208/120Y has 208 between phases and 120 line/neutral.> 240 delta has 138 line to neutral>> 240Y would be very unusual>> 480/277Y is pretty common 480 phase to phase, 277 phase to neutral> _______________________________________________> Tesla mailing list -- tcml@xxxxxxxxxxxxxxx> To unsubscribe send an email to tcml-leave@xxxxxxxxxxxxxxx>_______________________________________________Tesla mailing list -- tcml@tcml.pupman.comTo unsubscribe send an email to tcml-leave@xxxxxxxxxxxxxxx
Tesla mailing list -- tcml@xxxxxxxxxxxxxxx
To unsubscribe send an email to tcml-leave@xxxxxxxxxxxxxxx