FAULT INTERRUPTING AND RECLOSING DEVICE

摘要

A method to determine the end-of-life of a vacuum interrupter, the method comprising for each fault current detected, monitoring at least one parameter associated with the fault current to be interrupted or an operation of the vacuum interrupter to interrupt the fault current; using the at least one parameter to determine a single operation percent life consumed value for the vacuum interrupter, the single operation percent life consumed value being associated with interrupting the fault current; determining a cumulative percent life consumed for the vacuum interrupter, the cumulative percent life consumed being an accumulation of each of the single operation percent life consumed values corresponding to each of the detected fault currents.