Which one is your VFD hero? VFDs, together with their rotating partners (motors) perform lot of work behind the scene. As we already know, there are multiple VFD topologies available on the market. While they all fulfill the basic purpose, such as soft starting of the machine and speed or Read more…
Comparison of arc resistant design solutions In our previous posts regarding arc proof design [1, 2] we have discussed the danger and possible fatal impact of arc flash. We have listed the guiding standards and presented the most common solutions to achieve arc resistant design. So the logical step now Read more…
VFD purchase specification If you follow our blog regularly then you are aware of the few posts published by us that deal with VFD specifications [1, 2]. The last post on this topic [2] also triggered some discussion (which is always welcomed and appreciated). I am convinced that a balanced Read more…
Arc resistant design solutions In our introduction last time we have explained the danger of an electric arc flash for the personnel and the equipment. The arc reaches extremely high temperatures and releases pressure and sound waves into the surrouding. Besides personal protective equipment (PPE) the risk of an arc Read more…