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.
What minimum accuracy does BAL-005-1 demand of the frequency metering equipment used to calculate Reporting ACE?
- A. 0.001 Hz
- B. 0.010 Hz
- C. 0.0001 Hz
- D. 0.100 Hz
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Answer A 0.001 Hz
Requirement R3 Part 3.2 sets the minimum accuracy at 0.001 Hz, and Part 3.1 sets a minimum availability of 99.95 percent for each calendar year. Coarser metering would corrupt the 10B frequency term in Reporting ACE.
Reference: BAL-005-1 R3 Part 3.2
BAL-005-1 sets a minimum yearly availability for the system a Balancing Authority uses to calculate Reporting ACE. Across an 8,760-hour year, what is the longest total unavailability that still meets it?
- A. 17.5 hours
- B. 43.8 hours
- C. 87.6 hours
- D. 4.4 hours
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Answer B 43.8 hours
Requirement R5 sets the minimum at 99.5 percent of each calendar year, and 0.5 percent of 8,760 hours is 43.8 hours. The 4.4-hour figure follows from the 99.95 percent availability R3 sets for frequency metering equipment, which is a separate requirement.
Reference: BAL-005-1 R5
