Patent ID: 8386200

Claim:
A monitoring system configured to calculate at least one phase conductor line condition in each of a plurality of segments of a phase conductor line of a distribution system using synchrophasor data, the system comprising: at least one computer device having at least one processor and memory, the memory storing instructions for execution of the monitoring system, the at least one processor configured to execute the instructions to: receive currents at an instant in time from a plurality of meters along respective branches of the phase conductor line, the branches connected to the phase conductor line through at least one distribution transformer; receive voltages at the instant in time from the plurality of meters; determine a secondary side voltage of the at least one distribution transformer at the time instant based on the received currents and voltages from the plurality of meters; determine a primary side voltage of the at least one distribution transformer based on the secondary side voltage at the instant in time; and calculating the at least one phase conductor line condition based on the primary side voltage of the at least one distribution transformer and the synchrophasor data.