Appendix B – BROS Information
PURPOSE:
The following provides information on the “BES Reliability Operating Services” (BROS) noted in this procedure and the CIP-002 standard.
USAGE:
BROS was introduced in the Guidance and Technical Basis section of the CIP-002 standard, and are based on the NERC Reliability Functional Model. The purpose of the BROS is to assist Responsible Entities (i.e. FPL) in the identification services essential to the reliable operation of the BES asset, and the Cyber Assets associated with those essential services.
For CIP-002 the BROS have been identified as:
BROS Name Brief Description
Dynamic Response Includes those actions performed by BES Elements or subsystems which are automatically triggered to initiate a response to a BES condition.
Balancing Load & Generation Includes activities, actions and conditions necessary for monitoring and controlling generation and load in the operations planning horizon and in real‐time. Controlling Frequency Includes activities, actions and conditions which ensure, in real time, that frequency remains within bounds acceptable for the reliability or operability of the BES. Controlling Voltage Includes activities, actions and conditions which ensure, in real time, that voltage remains within bounds acceptable for the reliability or operability of the BES. Managing Constraints Includes activities, actions and conditions that are necessary to ensure that elements of the BES operate within design limits and constraints established for the reliability and operability of the BES. Monitoring and Control Includes those activities, actions and conditions that provide monitoring and control of BES Elements. Restoration Includes activities, actions and conditions necessary to go from a shutdown condition to an operating condition delivering electric power without external assistance. Situation Awareness Includes activities, actions and conditions established by policy, directive or standard operating procedure necessary to assess the current condition of the BES and anticipate effects of planned and unplanned changes to conditions. Inter-Entity Coordination Includes activities, actions, and conditions established by policy, directive, or standard operating procedure necessary for the coordination and communication between Responsible Entities to ensure the reliability and operability of the BES. Each of the BROS have categories related to the different functional responsibilities of a Reliability Coordinator (RC), Balancing Authority (BA), and Transmission Owner (TO), Transmission Operator (TOP), Generator Owner (GO), Generation Operator (GOP), and Distribution Provider (DP). A full list of the BROS and their categories is provided in the Cyber Asset Classification Tool “BROS Description” worksheet. Part of the worksheet is shown in Figure Appendix-H-1: Figure Appendix-H-1 Figure Appendix-H-1 displays the BROS names “Dynamic Response to BES Conditions” and part of “Balancing Load and Generation”. Each of the BROS contains a set of categories such as “Spinning reserves (contingency reserves)” and sub-categories such as “Providing actual reserve generation when called upon”. Each of these categories are associated with one or more functional responsibilities such as BA, GO, and GOP. To determine which BROS and categories apply to a BES asset, the following example is provided: • Generation plant is owned and operated by Entity A who has the functional responsibilities as a GO and GOP • Under the “Dynamic Response to BES Conditions” BROS, the following sub-categories are associated with GO and GOP functional responsibilities: o Providing actual reserve generation when called upon o Control system used to actuate governor response o Lines, buses, transformers, generators …show more content…
The services are considered essential to the operation of the BES asset, so any Cyber Asset associated with those services would be considered essential, and should be evaluated to see if qualifies as a BCA. Below are two (2) examples on how the BROS can be applied to a Cyber Asset to determine if it is essential to the operation of the BES asset.
Example 1:
i. At a generation BES asset, there are protection relays installed at the step-up transformer (GSU) to protect the actual generation unit from line faults which could impact the operation of the units. ii. The relays are considered Cyber Assets and are part of the generation BES assets protection systems. iii. Reviewing the BROS information for Generator Owner (GO) and / or Generator Operator (GOP), the following is found:
• Under the “Dynamic Response” BROS there is the category of: o “Protection Systems (transmissions & generation)”, which has; o “Lines, busses, transformers, generation” and “Current, frequency, speed, phase”
PURPOSE:
The following provides information on the “BES Reliability Operating Services” (BROS) noted in this procedure and the CIP-002 standard.
USAGE:
BROS was introduced in the Guidance and Technical Basis section of the CIP-002 standard, and are based on the NERC Reliability Functional Model. The purpose of the BROS is to assist Responsible Entities (i.e. FPL) in the identification services essential to the reliable operation of the BES asset, and the Cyber Assets associated with those essential services.
For CIP-002 the BROS have been identified as:
BROS Name Brief Description
Dynamic Response Includes those actions performed by BES Elements or subsystems which are automatically triggered to initiate a response to a BES condition.
Balancing Load & Generation Includes activities, actions and conditions necessary for monitoring and controlling generation and load in the operations planning horizon and in real‐time. Controlling Frequency Includes activities, actions and conditions which ensure, in real time, that frequency remains within bounds acceptable for the reliability or operability of the BES. Controlling Voltage Includes activities, actions and conditions which ensure, in real time, that voltage remains within bounds acceptable for the reliability or operability of the BES. Managing Constraints Includes activities, actions and conditions that are necessary to ensure that elements of the BES operate within design limits and constraints established for the reliability and operability of the BES. Monitoring and Control Includes those activities, actions and conditions that provide monitoring and control of BES Elements. Restoration Includes activities, actions and conditions necessary to go from a shutdown condition to an operating condition delivering electric power without external assistance. Situation Awareness Includes activities, actions and conditions established by policy, directive or standard operating procedure necessary to assess the current condition of the BES and anticipate effects of planned and unplanned changes to conditions. Inter-Entity Coordination Includes activities, actions, and conditions established by policy, directive, or standard operating procedure necessary for the coordination and communication between Responsible Entities to ensure the reliability and operability of the BES. Each of the BROS have categories related to the different functional responsibilities of a Reliability Coordinator (RC), Balancing Authority (BA), and Transmission Owner (TO), Transmission Operator (TOP), Generator Owner (GO), Generation Operator (GOP), and Distribution Provider (DP). A full list of the BROS and their categories is provided in the Cyber Asset Classification Tool “BROS Description” worksheet. Part of the worksheet is shown in Figure Appendix-H-1: Figure Appendix-H-1 Figure Appendix-H-1 displays the BROS names “Dynamic Response to BES Conditions” and part of “Balancing Load and Generation”. Each of the BROS contains a set of categories such as “Spinning reserves (contingency reserves)” and sub-categories such as “Providing actual reserve generation when called upon”. Each of these categories are associated with one or more functional responsibilities such as BA, GO, and GOP. To determine which BROS and categories apply to a BES asset, the following example is provided: • Generation plant is owned and operated by Entity A who has the functional responsibilities as a GO and GOP • Under the “Dynamic Response to BES Conditions” BROS, the following sub-categories are associated with GO and GOP functional responsibilities: o Providing actual reserve generation when called upon o Control system used to actuate governor response o Lines, buses, transformers, generators …show more content…
The services are considered essential to the operation of the BES asset, so any Cyber Asset associated with those services would be considered essential, and should be evaluated to see if qualifies as a BCA. Below are two (2) examples on how the BROS can be applied to a Cyber Asset to determine if it is essential to the operation of the BES asset.
Example 1:
i. At a generation BES asset, there are protection relays installed at the step-up transformer (GSU) to protect the actual generation unit from line faults which could impact the operation of the units. ii. The relays are considered Cyber Assets and are part of the generation BES assets protection systems. iii. Reviewing the BROS information for Generator Owner (GO) and / or Generator Operator (GOP), the following is found:
• Under the “Dynamic Response” BROS there is the category of: o “Protection Systems (transmissions & generation)”, which has; o “Lines, busses, transformers, generation” and “Current, frequency, speed, phase”