Transformer protection relay PAS2930D

voltagecurrentoverload

PAS2930D series digital transformer protection, measurement and control device is applicable to transformers of 110kV and lower voltage level, and realizes protection of complete-set transformers in line with the principle that primary protection and backup protection are configured independently, and backup protection is configured by side. The device is installed by means of screen assembly. PAS2931D digital transformer differential protection device provides ratio differential protection of second harmonic breaking principle. It is applicable to transformers of 110kV and lower voltage level, and it is installed by means of screen assembly. PAS2933D transformer backup protection, measurement and control device provides backup protection reflecting inter-phase and ground faults, and completes the measurement and control functions at this side. It is applicable to transformers of 110kV and lower voltage level. PAS2935 non-electricity protection device provides non-electricity protection for transformers.