From the data collection system of electric transmission failure reason of each feedder have different causes and different in some events, in which each will cause a different damage.
Of data collection, transmission disruption of supply of each feedder found that it was different. And the same in some of the events Each value will cause different damage.
From the data transmission of power supply failure of each feedder were found to have different causes. And the same in some events. In which each cause is damage value is different.