A new DC power plant architecture for centralized or decentralized applications

A new battery power plant architecture, defined by the term polyvalent, which provides the benefits of common building blocks while meeting power system applications ranging from small distributed sites to large central office applications is introduced. The plant allows for reduction in training and minimizes proliferation of diverse power equipment in a telephone company´s network. The emerging European Telecommunications Standards Institute (ETSI) requirements are discussed, and information on specific areas where the ETSI requirements differ from the standard used in the US are provided. The harmonization of equipment standards will create new opportunities for equipment manufacturers in markets previously closed