DIA4L – Interface protection relay for active consumers (according to CEI 0-16 2019-04 Norm)

The protection relay DIA4L belongs to SIGMA-L digital protection line and it performs three phase overvoltage and undervoltage protection, overfrequency and underfrequency protection, residual overvoltage protection; it could be used as interface protection for active Users connected to MV electric power system. DIA4L protection relay is compliant with Italian document Norma CEI 0-16 (2019-04) in…