JEMTEC

A substation system is a set or arrangement of components so related or connected to perform a common function. Each system has a definable function to which the system components contribute.The functions of a substation are as following: (a) To isolate a faulted element from the rest of the utility system. (b) To allow an element to be disconnected from the rest of the utility system for maintenance or repair. (c) To change or transform voltage levels from one part of the utility system to another. (d) To control power flow in the utility system by switching elements into or out of the utility system. (e) To provide sources of reactive power for power factor correction or voltage control. (f) To provide data concerning system parameters (voltage, current flow, power flow) for use in operating the utility system Substation  designers break a substation down into smaller pieces so that they can  develop design criteria, prepare calculations, write speci...