초록 ▼

The system for determining protection quality of a protective relay and related functions of the protection system include obtaining information concerning the output status of the various protective elements in the relay. The status of various operations in the protective element are also evaluated

The system for determining protection quality of a protective relay and related functions of the protection system include obtaining information concerning the output status of the various protective elements in the relay. The status of various operations in the protective element are also evaluated against specific standards. The operation of supervisory and control elements affecting the action protective elements are also evaluated. Other aspects of the relay, including the availability of the relay and the operation of the voltage and current transformers are also evaluated. In addition, associated aspects such as the status of the communication channels, the station voltage availability and the condition of the trip and close circuits are monitored. All of the above is analyzed in a summary report to provide an indication of protection quality for the relay and associated protection system functions.

대표청구항 ▼

[ What is claimed is:] [1.] A system for determining protection quality of a protective relay, having one or more protective elements therein, comprising:means for obtaining information concerning the output status of protective elements in the relay which have a significant effect on the operation

[ What is claimed is:] [1.] A system for determining protection quality of a protective relay, having one or more protective elements therein, comprising:means for obtaining information concerning the output status of protective elements in the relay which have a significant effect on the operation of the relay and the status of at least one internal operational function of each of said protective elements which affects the output status of that protective element;means for obtaining information concerning the operational availability of the relay;means for comparing said output status information and said availability information against preestablished standards; andmeans for providing output information relative to the results of said comparison.