| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a protection relay system which can improve data transmission efficiency. <P>SOLUTION: The protection relay system comprises: a plurality of input electrical amount acquisition devices 1 to 3 which set electrical amount data Xt to transmission frames B1 to B3 to output the data; a data collection-and-delivery device 9 which reads the respective transmission frames B1 to B3 stored in a storage part to generate second data (data Y0, filter data Y1, and differential amount data Z0) and also generate frames B4 to B6, and sets the second data to the frames B4 to B6 to output the data; and arithmetic devices 6 to 8 which perform protection calculation of an electric power system on the basis of the frames B4 to B6 transmitted from the data collection-and-delivery device 9. <P>COPYRIGHT: (C)2013,JPO&INPIT |
