Hello everybody. My company has asked me to take a 480vac delta to 208vac wye Xmfr and wire it backwards to get 480vac 3 phase from 208 3 phase. I have a couple of problems with this.
1. If i input 208vac on X1,2,3 and bond X0 to earth what will happen when the current is applied through the coils with no load? I think it would burn out the secondary side correct?
2. if i were to float the ground then there would be no way to properly ground the system?
Has anybody done something like this before this is a large Xmfr 225KVA so its not like i can bench test it like some science project. Also safety and workmanship and whether this is code compliant in our field are all issues i have debated. As of now ive told them "cant be done properly"
Thanks
1. If i input 208vac on X1,2,3 and bond X0 to earth what will happen when the current is applied through the coils with no load? I think it would burn out the secondary side correct?
2. if i were to float the ground then there would be no way to properly ground the system?
Has anybody done something like this before this is a large Xmfr 225KVA so its not like i can bench test it like some science project. Also safety and workmanship and whether this is code compliant in our field are all issues i have debated. As of now ive told them "cant be done properly"
Thanks