PNNL Taxonomy Feeders - General Feeder

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

General Feeders The general feeders are feeders that are likely to be seen in any region independent of the climate. While there may be small variations between climate regions they are not significant enough, statistically, to include as independent feeder types within each region. As such the general feeders can exist in any of the 5 climate regions. This feeder is representative of a single large commercial or industrial load, such a very large shopping mall or a lumber mill. These feeders may supply the load through a single large transformer or a group of smaller units. While there may be a couple of smaller loads the behavior of the feeder is determined by the single large customer.