method for the treatment of the neutral systems with selective activation of medium voltage and simple earth

摘要

the invention refers to a method for the treatment neutrului medium voltage networks with the selective of punerilor to earth,using the earth as a resistor and the value of a certain form, coupled with a system of protectii: homopolarede homopolare voltage, currentdifferential current protection for a homopolara and defects with the resistance of great pass, for airlines and mixed.for single-phase short-circuit current limit in the range 300 to 600a, depending on network structure.