Power substation can have one or several DC systems. Factors affecting the number of systems are the need of more than one voltage level and the need of duplicating systems.
A substation battery charger ensures all the essential electrical systems in a substation continue to operate in the event of a power outage. An absence of an electrical supply could result in damage to equipment and personnel. The DC system is the most important component of a high voltage industrial/utility substation. It supplies the energy needed to manage the protective devices and high voltage components and allows electrical faults to be safely isolated.
