Brian Stevens
Member
- Location
- United States
I have a pad mount 3 phase transformer which from phase to phase I have 480 volts. On A &C phase to ground I am getting 480 volts and on B phase I have nothing.(1.4 volts). What direction should I go in to start troubleshooting this? I believe the transformer is bad but cannot open it to check anything as it is a 2300kva transformer and the contractor has no PPE gear for them to open it.