Free sample: 2 of 36
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.
After a disturbance an analyst needs to establish the order in which breakers and relays operated. Which category of Disturbance Monitoring Equipment gives that order directly?
- A. Fault recorders
- B. Dynamic Disturbance Recorders
- C. Sequence of event recorders
- D. Revenue metering recorders
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Answer C Sequence of event recorders
The Glossary splits Disturbance Monitoring Equipment into sequence of event recorders, which record equipment response to the event, fault recorders, which capture the waveforms of system voltages and currents, and Dynamic Disturbance Recorders, which capture behavior such as 0.1 Hz to 3 Hz oscillations and abnormal frequency or voltage excursions. Only the first hands the analyst the order of operation.
Reference: NERC Glossary - Disturbance Monitoring Equipment (DME)
A Planning Coordinator maintains a database that models the Undervoltage Load Shedding (UVLS) Programs in its area. Under PRC-010-2, where does the data in that database come from?
- A. From the Transmission Operator's Real-time state estimator solution
- B. From the Reliability Coordinator's System Operating Limit methodology
- C. From the Regional Entity's compliance filings for each UVLS program
- D. From the UVLS entities, in the format the Planning Coordinator specifies
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Answer D From the UVLS entities, in the format the Planning Coordinator specifies
PRC-010-2 Requirement R7 has each UVLS entity provide data to its Planning Coordinator according to the format and schedule the Planning Coordinator specifies, which is what keeps the UVLS Program database usable for event analyses. The database is built from the owners of the equipment, not from operating tools or compliance paperwork.
Reference: PRC-010-2 R7; PRC-010-2 R6
