DIGITAL INTEGRATED PROTECTION RELAY

A digital integrated protection relay is provided to reliably perform normal and protection relay processes by separating a current transformer, an A/D converter, and a distal signal processor. A digital integrated protection relay includes a current transformer/power transformer, first and second A/D converters(130,140), and first and second distal signal processors(150,160). The current transformer/power transformer includes first and second current transformers, and first and second display/manipulation units(170,190). The first current transformer is used for a normal relay process. The second current transformer is used for a protection relay process. The first display/manipulation unit supplies a manipulation signal to the first DSP(Digital Signal Processor) and displays only the data used for the protection relay process. The second display/manipulation unit arranged to be separated from the first display/manipulation unit, supplies a manipulation signal for meta-functions to the second DSP and displays only the data for the meta-functions on a screen.