Topic:"Grid Modernization" in M12623

PUBLIC Page 23 of 44 IESO IESO NE NE PJM PJM NY NY Tot Tot Time Sch ACE Sch ACE Sch ACE Sch ACE Sch ACE Pre-contingency 0 0 0 0 -400 0 +400 0 0 0 Contingency 0 0 0 0 -400 0 +400 -1600 0 -1600 PJM/NY Schedule change 0 0 0 0 0 -400 0 -1200 0...

AI summary The document presents a table showing the changes in schedules and ACE (Area Control Error) values across different regions and entities, including IESO, PJM, and NYISO, following a contingency event. It illustrates the impact of schedule changes and SAR (System Area Reliability) entries on ACE values, with specific examples such as PJM buying 1200 MW from HQ-TE on MSC 7040 and NYISO buying 400 MW.

IESO IESO NE NE PJM PJM NY NY Tot Tot Time Sch ACE Sch ACE Sch ACE Sch ACE Sch ACE Pre-contingency 0 0 0 0 -1200 0 +1200 0 0 0 Contingency 0 0 0 0 -1200 0 +1200 -1600 0 -1600 PJM/NY Schedule change 0 0 0 0 0 -1200 0 -400 0 -1600 No respons...

AI summary The table details the changes in ACE (Area Control Error) across different regions (IESO, NE, PJM, NY) before and after a contingency, including the response through SAR (Simultaneous Activation of Ten-Minute Reserve) and the resulting adjustments in schedules. Example 3 illustrates a scenario where PJM and NYISO purchase 200 MW from Quebec, while NE purchases 1200 MW.

4.0 Actions to Mitigate Thirty-Minute Reserve Shortages 4.1 Actions When Becoming Deficient in Thirty-Minute Reserve To minimize the magnitude and duration of a thirty-minute reserve deficiency, a Balancing Authority may implement any or a...

AI summary This section outlines actions a Balancing Authority may take to address a thirty-minute reserve deficiency, including obtaining external resources, recalling generator outages, recalling exports, and counting interruptible load and voltage reduction as reserve capacity.

1.6.1 Functional Entities Reliability Coordinator Planning Coordinator RAS -entity: Transmission Owner, Generator Owner, or Distribution Provider that owns all or part of a RAS Other Functional Entities as appropriate

AI summary The section outlines functional entities involved in grid reliability and planning, including the Reliability Coordinator, Planning Coordinator, and entities associated with the Remedial Action Scheme (RAS), such as Transmission Owners, Generator Owners, and Distribution Providers.

C power supply failure shall prevent both independent RAS Groups from performing the intended function. Each battery shall be provided with its own charger. Physical separation shall be maintained - between the two station batteries or DC...

AI summary This section outlines technical criteria for ensuring the dependability and security of power supply systems, focusing on requirements for battery and DC power supply configurations, monitoring, and protection measures to maintain system reliability during failures.

- 5.12.1 Each RAS Group and teleprotection of the RAS shall be on non-adjacent vertical mounting assemblies or enclosures, except as noted in 5.12.6. - 5.12.2 RAS Group LAN devices for redundant RAS Groups shall be on different non-adjacen...

AI summary The text outlines technical criteria for the installation and separation of RAS Groups and teleprotection systems to prevent common mode failures and ensure reliability. It specifies physical and environmental requirements for these systems, including cable separation, use of non-flammable barriers, and compliance with IEEE or IEC standards.

2.11 Battery and Direct Current (DC) Supply - 2.11.1 The circuitry between each battery and its first protective device cannot be protected and therefore should be designed so as to minimize the possibility of electrical short circuit. - 2...

AI summary The text outlines technical requirements for battery and DC supply systems, emphasizing circuit design to prevent short circuits and voltage regulation to ensure stable power delivery. It also highlights the importance of testing firmware and automation software in an off-line environment and ensuring interoperability of IEDs in substations.

2.7 Arming of a RAS Arming is the selection, which may be external to the RAS , of desired output action based on power system conditions and recognized contingencies. Arming of a RAS is normally based upon the results of system studies, w...

AI summary This section discusses the arming of a Remedial Action Scheme (RAS), which involves selecting output actions based on power system conditions. Arming can be automatic or manual, with manual arming requiring sufficient time for analysis and corrective action. The section also addresses design considerations for voltage transformers and relay systems in RAS voltage circuits.