3 phase panel in shop showing weird voltage!
Looks like a feeder fuse(s) opened, measure a-b a-c and b-c , some of the measurements show voltages as they are feeding through other devices. If you measure low voltages at your main panel call your power company and tell them you have lost phases. This happens all the time in industrial sites where a fused feeder gets over loaded sometimes a short on 1 phase takes out a 2nd then the circuit breaker trips, you still have power on 1 leg so there is no breaker probably fuses at the pole.