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Electric Power System Protection and Control System

The power system protection and control contribute to the stable electricity supply. We employ the latest digital technology to assure high reliability of the power system that is not allowed to be interrupted for even an instant.

Cubicle-type digital protection and control system


Unit type digital protection and control system

We offer these easy-to-use, all-in-one compact units which optimally employ high-grade microcomputer technology and communication technology in order to cope with increasingly large and complex electric power systems.


ND : Next generation Digital Relay

Power system analysis technology supporting smart grid solution

Hitachi strongly supports electronic power system by excellent power system analysis technology.