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4.a · Emergency Response · free sample

System Restoration

4.a System Restoration is one of the 31 knowledge areas in the NERC System Operator Certification content outlines. It is worth 5 scored questions on RC, 4 on BT, 5 on TO and 4 on BI. On RC and TO that is the most any single area carries. Grid Prep has 45 questions on it. In the bank, they most often cite EOP-005-3 and EOP-006-3. Two are free below.

Free sample: 2 of 45

Answer each one before you open the explanation. On the exam there's no explanation, and you have about 77 seconds a question on RC and BT, 90 on TO and BI.

Question 1 · Recall

Demand and resource balance for a restored area is handed back to the Balancing Authority in accordance with

  1. A. criteria the Reliability Coordinator sets in its plan
  2. B. the schedule agreed with adjacent Balancing Authorities
  3. C. limits published in the Balancing Authority's own tariff
  4. D. timing chosen by the Generator Operators still on line
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Answer A criteria the Reliability Coordinator sets in its plan

EOP-005-3 calls for Operating Processes to transfer operations back to the Balancing Authority in accordance with the Reliability Coordinator's criteria, and EOP-006-3 requires those criteria to be in the Reliability Coordinator's own restoration plan.

Reference: EOP-005-3 R1.9; EOP-006-3 R1.6

Question 2 · Application

EOP-005-3 has a Transmission Operator implement its restoration plan until the shutdown area reaches a defined state. That state is reached when

  1. A. every Blackstart Resource used during the event has been returned to reserve
  2. B. the next Load to restore is no longer chosen to control frequency or voltage
  3. C. the last customer interrupted in the shutdown area has been returned to service
  4. D. each island in the area has been tied to at least one neighboring island
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Answer B the next Load to restore is no longer chosen to control frequency or voltage

Requirement R1 describes the restoration as carried through to the point where the choice of the next Load to be restored is no longer driven by the need to control frequency or voltage. Full customer restoration is a separate matter that continues after that point.

Reference: EOP-005-3 R1

The full bank

The other 43 System Restoration questions

Full Access opens all 45 in this area as 12-question sets, least-seen first, plus the rest of the 1,224 and unlimited mock exams at exam pace. The Library card for 4.a holds the area's seven must-know numbers. To start free in the browser: 50 practice answers and a 30-question timed taster, split to your exam's weighting.

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