Hi All
I have a Bridgeport V2XT milling machine being fed by a Phoenix 10 hp RPC, the milling machine is operating eractily and part of the troubleshooting process is to check various voltages.

L1 to L2 241 volts
L2 to L3 251 volts
L3 to L1 257 volts

L1 to Ground 120 volts
L2 to Ground 120 volts
L3 to Ground 228 volts

These readings were taken inside the milling machine electrical box. The milling machine has two transformers (T1 and T2) that feed various electronic controls and a 3 phase spindle motor . The milling machine is wired so the spindle motor gets L1,L2 and L3 and each transformer gets two legs. So T1 is fed from L1 and L2 and T2 is fed from T2 and T3. So the question is is the phase to phase balance out of spec and why is the L3 to ground so far out. Any advice ???