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System for protecting and controlling substation main circuit components

  • US 20020116092A1
  • Filed: 01/30/2002
  • Published: 08/22/2002
  • Est. Priority Date: 02/09/2001
  • Status: Active Grant
First Claim
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1. A system for protecting and controlling at least one substation main-circuit component disposed in an electric power installation;

  • the system including;

    at least one unit for protecting, controlling and monitoring the substation main-circuit component; and

    at least one substation controlling-and-monitoring equipment disposed in the electric power installation for controlling and monitoring the electric power installation as a whole including the substation main-circuit component and for communicating with at least one remote control station;

    the system comprising;

    at least one digital data output means for inputting a plurality of analogue AC electric values of main circuit of the substation main-circuit component and outputting digital data corresponding to the analogue AC electric values;

    at least one protection-and-controlling means for inputting the digital data from the digital data output means, and for controlling, monitoring and protecting the substation main-circuit component;

    at least one component controlling-and-monitoring means for receiving commands from the protection-and-controlling means or the substation controlling-and-monitoring equipment, and for controlling and monitoring the substation main-circuit component; and

    communication means for transmitting information between the digital data output means, the protection-and-controlling means, the component controlling-and-monitoring means and the substation controlling-and-monitoring equipment;

    wherein at least part of the digital data output means, the protection-and-controlling means and the component controlling-and-monitoring means are disposed near their corresponding substation main-circuit component, or built in their corresponding substation main-circuit component.

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