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NERC Interconnection and Balancing Operations Flashcards

6 cards from real NERC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 NERC Interconnection and Balancing Operations flashcards as text

  1. Which NERC standard requires Balancing Authorities to maintain frequency within defined limits?

    Answer: BAL-001

    BAL-001 requires Balancing Authorities to maintain real power balance to keep Interconnection frequency within established limits.

  2. What is the nominal frequency of the Eastern, Western, and Texas (ERCOT) Interconnections in North America?

    Answer: 60 Hz

    All three major North American interconnections operate at a nominal frequency of 60 Hz.

  3. Under NERC BAL-003, what is the purpose of the Frequency Response Obligation (FRO)?

    Answer: To ensure each Balancing Authority contributes sufficient primary frequency response to arrest frequency decline after a generation loss

    BAL-003 establishes each BA's Frequency Response Obligation — the minimum primary frequency response each BA must provide to stabilize interconnection frequency after disturbances.

  4. What does 'Automatic Generation Control' (AGC) do in a Balancing Authority's control area?

    Answer: Continuously adjusts generator output to maintain scheduled tie-line flows and area control error at zero

    AGC adjusts generator MW output to regulate Area Control Error (ACE), keeping scheduled interchange and frequency on target.

  5. The 'Area Control Error' (ACE) in a Balancing Authority represents:

    Answer: The difference between actual and scheduled interchange plus the BA's share of frequency deviation

    ACE is the instantaneous difference between a BA's actual net interchange and scheduled interchange, adjusted for the BA's frequency bias contribution.

  6. Under NERC IRO-006, Reliability Coordinators are required to have which type of agreements in place?

    Answer: Reliability Coordinator Information Exchange Agreements with adjacent RCs

    IRO-006 requires Reliability Coordinators to have Information Exchange Agreements with neighboring RCs to facilitate real-time operational coordination.