2013 tpem prime power 275kw gen set voltage: 277/480 3 phase why, 4 wire alternator - 60 hz, 12 lead broad range, 105c electric engine governor, emergency stop switch, 24 vdc motor engine starter, engine cooling - high ambient air temperature, engine coolant- 50ntifreeze, 50aater mixture coolant heater - 120 volt ac !