I'm kinda stuck on the 2 VT connections.
1) When you have 2 VT's, are they always Delta?
2) If there is an open-delta system, is there such a thing as closed delta?
3) In the attached drawing, it shows 2 sets of VT's. The top VT isn't grounded on the B phase, but the bottom one is. When do you know which connection you need?
Thanks in advance