| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a relay device capable of relieving a synchronizing range. <P>SOLUTION: A protective relay device 1 receives electric energy information from protective relay devices Ra, Rb, adds, to the received electric energy information, a time indicated by virtual clocks 16a, 16b adapted to main protection or backup protection as time information, selects electric energy information used for relay operation on the basis of the added time information, and executes relay operation using the selected electric energy information. <P>COPYRIGHT: (C)2013,JPO&INPIT |
