METHOD FOR DETECTING FAILURES ON DISTRIBUTION LINES AND AUTOMATICALLY SEPARATING FAILURE SECTIONS CAPABLE OF QUICKLY SEPARATING THE FAILURE SECTIONS, AND A CONTROL TERMINAL DEVICE FOR DISTRIBUTION AUTOMATION IMPLEMENTING THE SAME

摘要

PURPOSE: A method for detecting failures on distribution lines and automatically separating failure sections, and a control terminal device for distribution automation implementing the same are provided to basically detect failures by measuring the direction of power flow, to enable accurate failure detection regardless of a reference current value by determining as a failure when over-current exceeding the reference current value is detected, and to quickly and automatically separate the failure sections.;CONSTITUTION: A method for detecting failures on distribution lines and automatically separating failure sections includes the following steps: a measurement step measuring power flow, voltage, and current supplied through the distribution lines(S201); a step determining the direction of the power flow measured in the measurement step(S211); a failure detection step detecting failures by determining as a failure when the current measured at the measurement step exceeds a predetermined reference current value(S221,S222,S223); a failure direction determination step determining the direction of the failure when the failure is detected at the failure detection step(S224); an information exchange step exchanging failure information with an adjacent control terminal device for distribution automation through mutual communications with the adjacent control terminal device; a failure section determination step determining the failure sections by comparing the failure information of the self-end and the control terminal device received at the information exchange step(S225); and a failure section separation step separating the failure sections determined at the failure section determination step(S202).;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Start; (BB) End; (S201) Measuring power flow and voltage/current; (S202) Automatically separating the failure sections; (S211) Determining the direction of the power flow; (S212,S222) Determining failures; (S213,S223) Failures?; (S221) Measured current Reference current value ?; (S224) Determining the direction of the failure; (S225) Determining failure sections;