itsmoked
Electrical
- Feb 18, 2005
- 19,114
Please check this. I know Bill has suggested open-delta to me a few times and now I want to try it.
I have a 30A machine tool load designed for 230V.
At the site I have about 200V showing up from the 208 service.
I think I want to boost 32V.
This means 32V x 30A ~ 900, call it 1kVA of boost.
This is three-phase DELTA.
If I go with open delta do I still use the same two 32V 1kVA boost transformers?
Does the center of the three phases lean-off a bit from the theoretical center it would be with non-open delta?
Since the one leg isn't being boosted does the 32V boost of only two legs still represent 232V between all three legs or is there now an odd leg? Should I care?
Keith Cress
kcress -
I have a 30A machine tool load designed for 230V.
At the site I have about 200V showing up from the 208 service.
I think I want to boost 32V.
This means 32V x 30A ~ 900, call it 1kVA of boost.
This is three-phase DELTA.
If I go with open delta do I still use the same two 32V 1kVA boost transformers?
Does the center of the three phases lean-off a bit from the theoretical center it would be with non-open delta?
Since the one leg isn't being boosted does the 32V boost of only two legs still represent 232V between all three legs or is there now an odd leg? Should I care?
Keith Cress
kcress -