| 摘要 |
PROBLEM TO BE SOLVED: To display information indicating the operation of a plurality of protective relays easily in a field where the plurality of protective relays are installed.SOLUTION: The control unit of a first protective relay out of a plurality of protective relays acquires the operation content information of a second protective relay, until removal of a fault, from the second protective relay when the operator of the first protective relay is operated after occurrence of the fault. Time series data about the operation of first and second protective relays is created on the basis of the operation content information of the first and second protective relays, and the displays of the first and second protective relays are controlled according to the time series data. |
