Patent ID: 7027896
Filing Date: 2006-04-11
Classification: H02H

Abstract:
1. A substation control system, responsive to a plurality of inputs from power system assemblies in the substation, comprising: at least one remote input/output module having a fiber-optic transceiver capability; wire connections, for providing status indication signals from selected status points in the power system assemblies, to input contacts of the input/output module, wherein output signals from the remote fiber-optic module are in a form which can be applied to a fiber-optic line, and wherein said status indication signals are monitored by the input/output module for the state of the status indication signals; at least one logic processor connected to a fiber-optic line from the input-output module and responsive to signals thereon for communication thereof to protective relay devices; a fiber-optic communication line connecting the remote input/output module and the logic processor; and at least one protective relay responsive to signals from the logic processor to perform protection functions and to produce corresponding control output signals, wherein the control output signals are applied back to the power system assemblies for control thereof.