Reliability Analysis of Secondary Distribution System in Nigeria: A Case Study of Ayetoro 1 Substation, Lagos State.
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THE IJES
Abstract
Description
A power system is set up basically to meet the demands of the customers. However, interruptions which are
largely unavoidable contribute to the unavailability of power and thus prevent power system from achieving
this. In most cases, it is the sustained interruptions that greatly affect both the utility company and its
customers. Hence, it is necessary to find means of determining which component failure contributes most to the
unavailability of the distribution system, and how this unavailability actually affects the customers. This is to
enable system planners and designers to seek better ways of improving the reliability of a typical secondary
distribution substation system having a single-end fed radial configuration. By using analytical method and
network reduction technique, the substation reliability was analyzed based on the outage data gotten from the
utility company. The conclusion from this work shows that transformer failure followed by fuse failure
contributes most to the substation’s unavailability. The overall system availability shows that the system’s
performance is poor.
Keywords
TK Electrical engineering. Electronics Nuclear engineering