1 phase 230 Vac from 3 phase 460 Vac
1 phase 230 Vac from 3 phase 460 Vac
(OP)
What is the best way to tap off 1 phase ~230 Vac from a 3 phase 460 Vac 60hz main? It will be used to power a cooling fan and a couple of small dc power supplies in an enclosure.





RE: 1 phase 230 Vac from 3 phase 460 Vac
JRaef.com
Eng-Tips: Help for your job, not for your homework Read FAQ731-376
RE: 1 phase 230 Vac from 3 phase 460 Vac
I only asked because I have a print of a 3 phase 415Vac motor starter/controller designed and built in the UK. It has a 240/110 transformer on L1 to neutral, a 240/24Vdc power supply on L2 to neutral and another 240/24Vdc power supply on L3 to neutral. I didn't think it looked right to have a 1 phase device connected directly like that without a transformer.
RE: 1 phase 230 Vac from 3 phase 460 Vac
JRaef.com
Eng-Tips: Help for your job, not for your homework Read FAQ731-376
RE: 1 phase 230 Vac from 3 phase 460 Vac
Murphy's Law Rules!!