RIYn is multifunctional protection, which is intended Cooperation with Auto-reclosery. Can it used also as protect pins vn. Contains 7 protective functions: current 2.stup. inde. phase protection I> and I>>, the function of re-closing OZ, natural protection of non-directional Io> and Io>> and directional Ifi> conductation protecting Go> and protection against unbalance.