A method improving the electrical performance of the connections of the various elements in the electric power systems

摘要

The method proposes a new way of connecting the various elements of the electric networks (e.g. current conductors, bars, isolators, switches, surge arresters etc). The method is based on the principle that the connections of the elements of the power systems serve two different tasks: a good electrical transit resistance and a resistant mechanical connection. Therefore, the respective connections have to be considered as consisted of two parts that are materialized by separate components. The first one is the mechanical contact that should withstand the operating mechanical distresses and also protect the sensitive electric contact from any mechanical distress and the second is the electric contact that is dedicated to keep a low transit resistance and also remain unaffected by the environmental factors (corrosion etc). In order to achieve a good electric contact between current conductors or other power elements, a metal welding method and preferably the exothermic welding process is used. In order to achieve a resistant mechanical contact which protects the more sensitive electric contact from any mechanical distress, a suitable arrangement of clamps is used.