Quest line contacted the Illuminating Engineering Society. Quest line has highlighted the section with retail and grocery stores. Specifically, the motor control on a piece of equipment is burning out each motors's motherboards. Readings with a Dranetz has detected transients. Per our phone conversation, my first inclination for these types of events is to check the ground system.
Faulty voltages tend to be the product of faulty ground.
Besides, faulty ground is usually easy to detect and correct. Check at the primary plant transformers. Starting at the affected equipment, take readings of the wave form, working your way back, per the wire diagram. This should lead to the transient source. If this is too cumbersome a process, surge protection should be installed on the motor.