A switchyard is energy infrastructure where electrical energy is controlled, routed, protected and distributed to different lines. It is an important connection point between generation, transmission and distribution systems.
Switchyards may include circuit breakers, disconnectors, busbars, instrument transformers, surge arresters, protection relays, grounding systems and various control equipment.
Substations are used to increase or decrease the voltage level of electrical energy so that it becomes suitable for transmission or use conditions.
Protection relays detect short circuits, overcurrent and other electrical faults, trigger the relevant breakers and help limit the fault from spreading to other parts of the system.
Grounding is one of the fundamental protection systems used to improve human and equipment safety during electrical faults. Correct design is critical in switchyard and energy infrastructure applications.
