At the time when you are going to size your low-voltage supply transformers, you need to make a decision on the process that you are going to set out in branch circuits. Let have a clear idea on it, for an instance - you possibly will make use of one transformer to distribute a MCC (motor control center) and one more used for lighting loads and an extra intended for ease holder, and many more. An individual transformer can be present for infrastructure apparatus like electric doors, plant air and elevators otherwise you can also give an individual transformers used for individual apparatus. For any emergency equipment such as fire control, emergency egress lighting and security an excellent plotter will give a transformer as well that located on a UPS. Furthermore it possibly will have even an alternating transformer which supplies the panels or switchgear all the way through a transfer switch.

In every case, you can look forward to size your distribution transformer based on the highest load, it is same as you have done for the service entry. furthermore, a part of big apparatus like a automatic engine that make routine sequential stomping , welding and cutting operations may possibly have need of its individual 4160V distribution.