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Do the other 10 units still run the house fine? Or did you fry something in your HVAC system?
Howdy,
Three phase is NOT the same as single phase. Single phase is 180 degrees apart and three phase is 90 degrees apart. Your motors will start to fry if you do this. If your a builder like you say then you must know the "NFPA" regulations. If you install your generators like you said then you would have power coming in at 90 and 270 degrees !
Your going to have to do some digging into the control box and using your voltmeter start checking things out. Us the TM's troubleshooting guide. It will help.
Everything you said was good advice, but 3-phase power has the three legs 120 degrees apart. Using two of them to simulate single phase gives you 120v and 208v.
When you look at a graph of the sine-wave it comes out to 180 degrees for single phase and 90 degrees for three phase. That is how you can have a wave 270 degrees out in three phase. Remember we are talking of a 360 degree circle here, as in the spinning rotor.
Standard US residential electric service is supposed to be 60 Hz. While some minor fluctuations are to be expected for various reasons, most electronics and such do not like too much greater or less. I would be surprised if 63 is even in range for some items. I would regulate your throttle down even more to attain a pretty solid 60 and keep it that way. I tend to keep an eye on my Hz meter as I add and subtract loads to make sure I keep the engine churning out the correct cycles/sec for all things electric to enjoy. I actually have fun watching the process of what loads do when added or taken off-line. It really helps me understand how large certain loads really are.
Your right. I was going by the single phase line being 0 to 90 peak. The original answer still holds though. The phase difference between two 3 phase lines will not properly power a motor designed for 180 degrees phase difference.M3M5 adam, glad that's straightened out. There is a tach, it's the frequency meter.
Rustystud, there are three phases, equally spaced in the 360 degree circle, 120 degrees apart. That's why 120-0-120 gives you 208. Here's a correct graph:
View attachment 641299
Longer explanation here: http://mysite.du.edu/~jcalvert/tech/threeph.htm
Rusty, have you tried booting into "safe mode" and then while in safe mode running a full virus scan? You might consider downloading & using Kaspersky's free AV scanner. If it finds an infection you can then download a free 30 Day free fully functioning trial of "KAV" which should then remove or quarantine the offending virus/malware. Not trying to start a which is best Virus/malware program discussion here, as there are lots of highly ranked anti-virus programs, just recommending one I know and trust and have been using for over 10 years with excellent results.I might have to take the whole thing into a recovery service to get all my documents out.
I hate people who just want to make other peoples lives miserable !
I bet that motor was screaming at 75 hertz.
I wish I had talked with you last week ! Last night I did go into Safe Mode and ran my anti-virus programs. I was at last able to rid myself of that horrible virus ! Now tonight after using system restore I'm up and running again !
