ABSTRACT
A realistic view of the power distribution systems should be based on “gathering” functions rather than on “distributing” since the size and locations of the customer demands are not determined by the distribution engineer but by the customers. Customers install all types of energy-consuming devices that can be connected in every conceivable combination and at times of customers’ choice. This concept of distribution starts with the individual customers and loads and proceeds through several gathering stages where each stage includes various groups of increasing numbers of customers and their loads. Ultimately the generating stations themselves are reached through services, secondaries, distribution transformers, primary feeders, distribution substations, subtransmission and bulk power stations, and transmission lines.
