I am using a single phase and neutral to supply my 24VDC power supply unit in my panel, i am then using the +24VDC and 0VDC supply for my standard relay control circuit.
This is not a battery operation. Do you think I should connect my 0V line to earth? What if I also had a 5VDC power supply...
Is it recommended to connect all zero volt lines from separate 24VDC power supplies to earth, thus ensuring all zero volt lines are at the same potential?
And what if there is only one source of 24VDC power in the electrical panel, should the 0 volt line be connected to earth?
Thanks
I need to select a braking unit for my 415V 37KW 3phase induction motor. I have been told that a general rule of thumb for calculating the maximum braking current is 4*KW. This gives me ~150A. So i should select the next size unit. Is this correct, and does anybody have a more technical solution...
