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.
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Purpose
To ensure that all Special Protection Systems (SPS) 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
- Transmission Owner that owns an SPS
- Generator Owner that owns an SPS
- Distribution Provider that owns an SPS
Effective Date
April 1,
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Purpose
To ensure that all Special Protection Systems (SPS) 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
- Transmission Owner that owns an SPS
- Generator Owner that owns an SPS
- Distribution Provider that owns an SPS
Effective Date
May 13,
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Purpose
Ensure data is provided to support the Regional database maintained for Under- Voltage Load Shedding (UVLS) programs that were implemented to mitigate the risk of voltage collapse or voltage instability in the Bulk Electric System (BES).
Applicability
- Transmission Owner that owns a UVLS program.
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Purpose
Ensure that Under Voltage Load Shedding (UVLS) programs perform as intended to mitigate the risk of voltage collapse or voltage instability in the Bulk Electric System (BES).
Applicability
- Transmission Operator that operates a UVLS program.
- Distribution Provider that operates a UVLS program.
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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
- Functional Entity
- Transmission Owners with load-responsive phase protection systems as described in PRC-023-2 –
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Purpose
To ensure that all Special Protection Systems (SPS) 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
- Transmission Owner that owns an SPS
- Generator Owner that owns an SPS
- Distribution Provider that owns an SPS
Effective Date
April 1,
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Purpose
Provide System preservation measures in an attempt to prevent system voltage collapse or voltage instability by implementing an Undervoltage Load Shedding (UVLS) program.
Applicability
- Load-Serving Entity that operates a UVLS program
- Transmission Owner that owns a UVLS program
- Transmission Operator that operates a UVLS program
- Distribution Provider that owns or operates a UVLS program
Effective Date
April 1,
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Purpose
To establish design and documentation requirements for automatic underfrequency load shedding (UFLS) programs to arrest declining frequency, assist recovery of frequency following underfrequency events and provide last resort system preservation measures.
Applicability
- Planning Coordinators
- UFLS entities shall mean all entities that are responsible for the ownership,
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Purpose
Ensure all transmission and generation Protection System Misoperations affecting the reliability of the Bulk Electric System (BES) are analyzed and mitigated.
Applicability
- Transmission Owner
- Distribution Provider that owns a transmission Protection System
- Generator Owner
(Proposed) Effective Date
In those jurisdictions where regulatory approval is required,
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