ANALYSIS OF PROTECTIVE SYSTEM FOR HIGH VOLTAGE LINES USING PROTOCOL IEC 61850?

The utility communication protocol IEC61850 standard provides methods of developing best engineering practices for protection, control, testing and monitoring. The intension is to indicate the significance and importance of using multivendor product to be used as a protection system for high voltage transmission lines. The purpose of using a multi-vendor products is to provide a comprehensive protective system which is immune to the failure of (a) similar hardware used in the multiple device employed for the same system.(b)to adapt varying algorithm for the detection of abnormality in the system. The philosophy discussed here will clearly bring out the advantages of using IEC61850 to achieve the protective system for EHV (extra high voltage) lines. EnerVista and MiCOM S1 AGILE are the software used to interface between the relay and PC.it is used to set the relays for communication through PC as well as analyse the data communication between the relays. The standard IEC61850 communication networks and systems will provide interoperability between the IEDs for protection, control, monitoring and automation in substation.IEC61850 is an international standard for electrical substation automation that will significantly improve the design and construction of electrical power systems in the future.