Economic issues on load and transformer location in rural properties

摘要

This paper is intended to undertake a study from books and local electricity distribution authority standards, to show that in a rural electricity consumer it is possible and appropriate to find the best possible location for the transformer and measurement equipment. Therefore it could be also possible to find a more economical solution on building materials (wires, cables, switching devices, etc.) concerning its daily use energy losses. After the analysis of all the load characteristics and its localization in the property, a design philosophy and a computational program were developed. The program gives the best transformer location obtained from the location of individual load centres, the load demands and their individual power factors. The program also gives the property average power factor, and the minimum power and location for the transformer to be used. The correct wiring is also an output in order to calculate global economic aspects of the electrical installation as a whole. An interesting aspect of this approach is the possibility of the design of new installations and the possibility of optimisation in rural electrical systems already in use.