Hello (anf sorry for my english)
Well, I have a problem measuring the Transformers of an instalation of sewage pumping.
It consist in 8 pumps of 560 kW of power, two of them must have a PWM to control the speed. They work in 690 volts (50 Hz) and have a cos(phi)=0.85. The company supply in...
Is there any body can tell me where can I find information about electric and mechanical efforts in the electric bars of a transformation center. I found some information of SF6 but I need more about other ways of isolating and even if there are programs or equations to set the layout of the...
