zhangbp
Member
- Location
- Fort Erie, Ontario, Canada
There were a lot of previous discussion about ungrounded wye to delta transformer bank. It seems most of the handbook suggest to float the wye primary if it is a wye-to-delta transformer bank. How about padmount transformer? We have a padmount 3-phase transformer; it is wye to delta; the primary wye side has a H0, which not internally bond to the tank or grounded. The H0 bushing insulation level is the same as the phase bushing. My question is, should I float the wye by just applying an insulation cap to H0, and not connect it to anything?