The control room is the coordination points of power generating, transmission and distribution.
In the case of Generation, it coordinates and relays electronic information from the plant through the transmitters and transdistance to the transfusion zoom of the power plant. It also contains the protective relays for the plants transformers to the outgoing lines, circuit breaker control, generator breakers and transformer breakers.

For Transmission, it contains the circuit breaker control, the relays; especially the distance protection and other transmission facilities, such as voltage boosters and reducers i.e. capacitors and reactors.
In Distribution, it contains the circuit breakers control, relays and required protection.