Abstract
Choosing an optimum location of a distribution sub-station has always been a concern to the distribution planners. A lot of work has been carried out in this regard but all have made either the use of man machine interface or have made some approximations. In addition, it performs operational and contingency switching and protection duties at both the transmission and feeder levels, and provides a convenient local site for additional equipment such as communications, storage of tools, etc. The location of a substation depends upon many factors. This paper uses DEMATEL method to rank the major cost sensitivities involved in substation sitting in order of typical economic importance to overall decision making. The seven major factors considered are: feeder impact, sub transmission impact, feeder getaway, geographic factors, site preparation, land cost and weather exposure.
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