Patent ID: 6988023

Claim:
A monitoring and control system including: a first center main system that monitors and controls first and second substations; first and second distribution lines connected to the first and second substations, respectively; first and second switches in the first and second distribution lines, respectively; first and second substation terminals for the first and second substations, respectively, that monitor and control the first and second switches, respectively; first and second communication channels providing communication between the first center main system and the first and second substation terminals, respectively; an inter-substation communication channel providing communication between the first and second substation terminals; and substation terminal interconnection means providing a communication channel between the first substation terminal and the first center main system, upon failure of the first communication channel, through the inter-substation communication channel, the second substation terminal, and the second communication channel, so that the first center main system monitors and controls the first switch.