| 摘要 |
A method of controlling a protection relay, includes inputting an input characteristic quantity and determining a triggering condition for the protection relay using a calculation equation, the value of which increases when the input characteristic quantity exceeds a first threshold value, and decreases when the input characteristic quantity undershoots a second threshold value for an overfunction measure, and the value of the calculation equation increases when the input characteristic quantity undershoots a first threshold value, and decreases when the input characteristic quantity exceeds a second threshold value for an under function measure, wherein the calculation equation includes a first measure and a second measure, and the triggering occurs when the first measure is greater than the second measure. |
