I came across an existing installation - a 30 KVA 480 Delta - 208/120 Y transformer is installed, supplying a 120/240 single phase panel. I am assuming in this config
- Transformer would be good for 20 KVA
- Required primary / secondary OCP requirements would be the same as if a 3 ph. load were being supplied (250% primary, 125% secondary)
The existing installation has a 60A primary bkr with 400A secondary bkr, so I'll recommend to the owner they change the secondary OCP. Are there any other concerns with running the 3 ph. transformer as single phase supply?
- Transformer would be good for 20 KVA
- Required primary / secondary OCP requirements would be the same as if a 3 ph. load were being supplied (250% primary, 125% secondary)
The existing installation has a 60A primary bkr with 400A secondary bkr, so I'll recommend to the owner they change the secondary OCP. Are there any other concerns with running the 3 ph. transformer as single phase supply?