Let's say I have a v-phase primary (2 hots plus a nuetral) with a 3 phase center tap open delta service drop(3 hots plus a nuetral) Each phase is 120 degrees apart, but if I take 2 leads for a sigle phase application, the phases are 180 degrees apart. How does this happen? Also, how many degrees apart are the phases on the primary? Thanks. Randy.
