| 摘要 |
A device for monitoring resource of switching unit comprises sensors of current, pressure and switching, as well as counters of electric and mechanical resource per each phase of each switch, unit of analog-digital conversion, weighting factor unit wherein irregularly worked-out resource of switch group is calculated at switching moment, synchronization unit. When closing of switch the moment of current flow beginning through one of poles is recorded as reference time, and switching time delay of other poles is measured beginning from this moment, and if it is excessive a signal is occurred at corresponding device outputs. |
