Purpose
To manage electronic access to BES Cyber Systems by specifying a controlled Electronic Security Perimeter in support of protecting BES Cyber Systems against compromise that could lead to misoperation or instability in the BES.
Applicability
4.1. Functional Entities: For the purpose of the requirements contained herein,
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Purpose
Identify and correct the causes of Misoperations of Protection Systems for Bulk Electric System (BES) Elements.
Applicability
Functional Entities:
4.1 Functional Entities:
4.1.1 Transmission Owner
4.1.2 Generator Owner
4.1.3 Distribution Provider
4.2.
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Purpose
Protective relay settings shall not limit transmission loadability; not interfere with system operators’ ability to take remedial action to protect system reliability and; be set to reliably detect all fault conditions and protect the electrical network from these faults.
Applicability
4.1. Functional Entity:
4.1.1 Transmission Owner with load-responsive phase protection systems as described in PRC-023-4 –
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Purpose
To ensure that all Remedial Action Schemes (RAS) are properly designed, meet performance requirements, and are coordinated with other protection systems. To ensure that maintenance and testing programs are developed and misoperations are analyzed and corrected.
Applicability
4.1. Transmission Owner that owns a RAS
4.2.
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Purpose
To ensure that all Remedial Action Schemes (RAS) are properly designed, meet performance requirements, and are coordinated with other protection systems. To ensure that maintenance and testing programs are developed and misoperations are analyzed and corrected.
Applicability
4.1. Transmission Owner that owns a RAS
4.2.
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Purpose
To ensure that all Remedial Action Schemes (RAS) are properly designed, meet performance requirements, and are coordinated with other protection systems. To ensure that maintenance and testing programs are developed and misoperations are analyzed and corrected.
Applicability
4.1. Transmission Owner that owns a RAS
4.2.
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Purpose
To improve the reliability of the Bulk Electric System by requiring the reporting of events by Responsible Entities.
Applicability
4.1. Functional Entities: For the purpose of the Requirements and the EOP-004 Attachment 1 contained herein, the following functional entities will be collectively referred to as “Responsible Entity.”
4.1.1.
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Purpose
To prevent instability, uncontrolled separation, or Cascading outages that adversely impact reliability, by ensuring the Reliability Coordinator has the data it needs to monitor and assess the operation of its Reliability Coordinator Area.
Applicability
4.1. Reliability Coordinator
4.2. Balancing Authority.
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Purpose
To ensure that the Transmission Operator and Balancing Authority have data needed to fulfill their operational and planning responsibilities.
Applicability
4.1. Transmission Operator
4.2. Balancing Authority
4.3. Generator Owner
4.4.
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Purpose
To identify and categorize BES Cyber Systems and their associated BES Cyber Assets for the application of cyber security requirements commensurate with the adverse impact that loss, compromise, or misuse of those BES Cyber Systems could have on the reliable operation of the BES. Identification and categorization of BES Cyber Systems support appropriate protection against compromises that could lead to misoperation or instability in the BES.
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