Electron_Sam78
Senior Member
- Location
- Palm Bay, FL
I've never worked with buck/boost Xfrmrs before and will have to disconnect an old 208/120V, 3 phase, 4-wire feeder and reconnect a new one. The feeder has 2 boost xfrmrs at the load side to boost 208 to 240V. The line voltage (L-N) will be increased as well correct? What can be done about this if there are also 120V loads? The line voltage is too high to run the 120V equipment reliably. Previously there have been 120V coils go bad - I assume due to the over voltage.
Also the buck/boost xfrmrs are not separately derived systems so no special grounding situation? Just bond the frame with EGC and move on correct?
Also the buck/boost xfrmrs are not separately derived systems so no special grounding situation? Just bond the frame with EGC and move on correct?