Interactive Computation System for Relay Setting and Simulation or Relay Operation in a Large Scale EHV Power System

This paper introduces a protective relay setting system capable of handling a large network up to 10,000 buses. The remarkable features are such useful functions as network analysis (fault analysis, load flow calculation, zero‐sequence current calculation, etc.), relay operation simulation, and automated setting coordination tasks. Fault currents in the maximum and the minimum operation networks are calculated to examine the setting values. The protection zones are searched automatically along the network connection. Protection coordination tasks among the primary and the backup relays composed of different types of relays can be performed by the relay operation simulation. The system is built on an engineering workstation, which works in cooperation with other network operation support systems. Its graphical user interface helps every engineer to examine the relay setting using a variety of databases.

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Interactive Computation System for Relay Setting and Simulation or Relay Operation in a Large Scale EHV Power System

Cited by 3 publications

References 1 publication

A mathematical technique for the optimum reach setting of distance relays considering system uncertainties

A mathematical technique for the optimum reach setting of distance relays considering system uncertainties

Computer aided coordination of line protection schemes: IEEE committee report

Computer-Aided Protective Relay Setting System for Large Power Networks

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