A METHOD FOR PROVIDING STATUS INFORMATION OF A CHANNEL'S HEALTH CONDITION IN A COMMUNICATIONS NETWORK

摘要

This invention concerns a method for providing status information of a channel's health condition in a communications network, the communications network including an IEC 61850 health report information model, the method including detecting channel impairments,mapping the detected channel impairments to the attributes in the IEC 61850 health report information model and reporting the channel impairments to protection IEDs and/or local SCADA in IEC 61850 based substations. The solution proposed helps the protection IEDs to predict an impending channel failure and to adapt their reaction times or their reach of the protected transmission line. This can prevent unnecessary over tripping on external transmission line faults..