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
To establish Interpersonal Communication capabilities necessary to maintain reliability.
Applicability
4.1. Transmission Operator
4.2. Balancing Authority
4.3. Reliability Coordinator
4.4. Distribution Provider
4.5. Generator Operator
Effective Date
The first day of the second calendar quarter beyond the date that this standard is approved by applicable regulatory authorities,
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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 require sufficient Frequency Response from the Balancing Authority (BA) to maintain Interconnection Frequency within predefined bounds by arresting frequency deviations and supporting frequency until the frequency is restored to its scheduled value. To provide consistent methods for measuring Frequency Response and determining the Frequency Bias Setting.
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Purpose
To specify consistent and sustainable security management controls that establish responsibility and accountability to protect BES Cyber Systems against compromise that could lead to misoperation or instability in the Bulk Electric System (BES)
Applicability
4.1. Functional Entities: For the purpose of the requirements contained herein,
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Purpose
To prevent and detect unauthorized changes to BES Cyber Systems by specifying configuration change management and vulnerability assessment requirements in support of protecting BES Cyber Systems from compromise that could lead to misoperation or instability in the Bulk Electric System (BES).
Applicability
4.1. Functional Entities: For the purpose of the requirements contained herein,
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Purpose
To provide a regional reliability standard that ensures the development of an effective automatic underfrequency load shedding (UFLS) program in order to preserve the security and integrity of the bulk power system during declining system frequency events in coordination with the NERC UFLS reliability standard characteristics.
Applicability
4.1.
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Purpose
When actual flows on Major WECC Transfer Paths exceed System Operating Limits (SOL), their associated schedules and actual flows are not exceeded for longer than a specified time.
Applicability
4.1. Transmission Operators for the transmission paths in the most current Table titled “Major WECC Transfer Paths in the Bulk Electric System” provided at:
https://www.wecc.biz/Reliability/TableMajorPaths4-28-08.pdf
Requirements
R1.
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