pmoore
Member
- Location
- Columbus Indiana
We bought a 3 phase transformer from Automation Direct that is 480vac primary with taps and 240vac secondary. When this was wired and powered up it went up in smoke. wiring diagram says to use number 1 tap on primary so it goes H1,H2,H3 all with 1 tap for 480 vac. X1,x4-2, x3 for secondary. I am confused as to why this burned up. Any ideas would be appreciated.