I think I came across a great deal, IF I can make it work properly.
Picked up an Onan model DKD Genset, 7.5 KW, 3 Phase 120/208 60 hz. 13 hours since new and was told to basically get it out of the company's warehouse. It's been there 10 years and the bean counter sez "get the damn thing outta here if you have no purpose for it".
So it's now mine and charged off the books.
I intend to use it to provide backup power in my off grid home and guitar shop running a CNC router and dust collection system. The data plate sez...
- single phase output .... 26 amps
- /208 3 phase rating ..... A phase - 23 amps, B phase - 25 amps, C phase - 23 amps.
Looks like I can run any single phase at 26 amps max load right? Or...
I can run each phase up to the rated load (or therabouts!) Right?
As an example of what I am thinking of doing:
A Phase to the Trace inverter for battery charging the bank.
B Phase to the CNC.
C Phase to the dust collection system all three.
(alternatively B and C to run the 220 volt well pump. Both C and C options are mutually exclusive as both options NEVER occur at the same time. (does 220 allow for a 120 degree phase shift??)
My rationale for all this is, a three phase generator runs well under peak efficiency when the loads on each phase are wildly imbalanced, right.
Thoughts, suggestions, criticisms of my understandng or "power" to say that "power" and "electronics" that I used to do.. are VERY different animals.
Thanx in advance!!
Twombo
