PNNL Taxonomy Feeders - Region 4 - Feeder 3

Abstract

This model is one of 24 prototypical feeders as well as including limited equipment information. The number of nodes includes only the primary distribution system; there are additional nodes in the secondary system. The secondary system nodes are on the customer side of their service transformer. These are the nodes, and links, that model the connections from the service transformer to the service meters via triplex or other cables. As discussed earlier in section 2.2 the classification process separated the feeders into three voltage classes; 12.47 kV, 25.00 kV, and 35.00 kV. In the actual feeder models it will be seen that voltages other than these three are used. From Tables 3 and 4 it can be seen that within the 12.47 kV cluster there are 12.47 kV and 13.8 kV feeders. This fact is represented in the following feeder descriptions

Climate Region 4 Climate region 4 is the non-coastal South East and central areas of the United States and is characterized by a hot and cold climate. Within climate region 4 there are 2 12.47 kV feeder types, and 1 25.00 kV feeder type.

This feeder is a representation of a lightly populated rural area. The load is composed on single family residences with some light commercial. Approximately 88% of the circuit-feet are overhead and 12% underground. This feeder has connections to adjacent feeders. This combined with the low load density ensures the ability to transfer most of the loads from other feeders, and vice versa. Most of the load is located at a substantial distance from the substation, as is common for higher voltages in rural areas.