KyleFowler
Member
- Location
- Maryville, TN
- Occupation
- Electrician
So I read up on transformer sizing today and this question is purely hypothetical but I feel like it has to happen occasionally and the examples I've found about transformer sizing don't address my question.
Let's say you are sizing the primary wire for a 25kva single phase step down transformer to feed a piece of equipment that only pulls 17kva. Do you size the primary wire for the transformer by 25kva or 17kva?
I ask because at work we did have a piece of equipment that had this problem, well sort of....it was a 6kva load on a 7.5kva transformer with a 480 volt primary so wire size was really a non issue there as we sized the primary wire to 7.5kva but it still left me wondering lol.
Thanks in advance
Let's say you are sizing the primary wire for a 25kva single phase step down transformer to feed a piece of equipment that only pulls 17kva. Do you size the primary wire for the transformer by 25kva or 17kva?
I ask because at work we did have a piece of equipment that had this problem, well sort of....it was a 6kva load on a 7.5kva transformer with a 480 volt primary so wire size was really a non issue there as we sized the primary wire to 7.5kva but it still left me wondering lol.
Thanks in advance