INTEGRATION UNIT AND PROTECTION RELAY SYSTEM

摘要

An integration unit for protecting a power system from a failure includes an A/D converter (11) configured to convert a quantity of electricity of a power system into digital data, a communication interface unit (12) configured to transmit the digital data to a process bus (30) connected to a protection unit (20) configured to protect the power system, and a relay calculation unit (13) configured to execute a relay calculation operation to detect an abnormality of the power system based on the digital data and to output, based on the calculation operation result, a circuit breaking signal to trip and drive a circuit breaker (44) inserted in the power system.