ABSTRACT
Networked distribution systems, as illustrated in Figure 13.1, are not the same as transmission networks. Networked distribution systems are designed to provide redundant facilities to customer service connections whereas transmission networks are designed to provide redundant facilities between generating stations, substations, and switchyards. Each distribution network feeder supplies several network transformers (only one per feeder is shown in Figure 13.1). The secondaries of network transformers are connected together and current limiters are used to isolate failed cables. Loss of a feeder, loss of a network transformer, or loss of a feeder and a network transformer should not result in overload to the remaining network and network components. Large networks are designed for loss of more than one feeder and loss of more than one network transformer.
