We need to check the recorded data to see if any transient event can be discerned. In the meantime, our technician measured the voltage at a receptacle close to our machine and found a 10 volt differential between ground and neutral.
We disconnected the ground that ran from the microwave cabinet to a transfer switch, which had been the original connection. We then grounded directly to a structural beam. The machine ran continuously but only at low power, but this was more than we'd seen in a while. I looked at the input AC...
We had the electric utility check the PQ at the transformer, no unbalance or harmonics to speak of. The microwave drying unit has an on-board anode current relay and an on-board circuit breaker. One or the other of these will trip the unit as soon as it is started. (Except back at our plant...
How sensitive is a magnetron to ground problems and power quality. Customer has an industrial microwave system that trips out on anode over-current. When the unit is sent back to the factory it runs fine.
