We are a steel engineering company and we have 300Hz 3 phase distribution for grinders. The reason we use them is that they dont slow down when you apply pressure. Sturdy - maybe they are often away for repair. Effective - extremely. I recall that they are 200V and are Bosch but I cant find any info on the internet about them. We are upgrading the system in a few weeks to MCB and RCD setup for personnel protection.

I will get some pictures on Monday of the system.

I took my time, I hurried up, The choice was mine, I didn't think enough