Architecture of Electrical Installations: The Node Double Two

The architecture of a power system can be configured in increasing complexity related to its exigencies, taking actions on the sources and on the configuration. In the failure cases, it has to guarantee availability and integrity, the time to repair the components has to be compatible to avoid the loss service continuity. The paper relates on the special configuration of the node "double two", constituted by two, and so more, automatic transfer systems connectible in parallel, and reports on the validation tests executed. The component systems are synchronized and conditioned to guarantee a complete redundancy or/and a more flexible operation. The innovation it is not only technological, but also of methodology and of architecture, the node 22 constitutes a sample of open systems, basilar for flexible architectures of high performances.