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.
A generator's power system stabilizer trips out of service and stays out. VAR-002-4.1 requires the Generator Operator to notify the Transmission Operator within...
- A. 30 minutes of the status change
- B. 60 minutes of the status change
- C. 24 hours of the status change
- D. the end of the operating day
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Answer A 30 minutes of the status change
R3 sets a 30-minute notification window for a status change on the AVR, the power system stabilizer or an alternative voltage controlling device. The Transmission Operator needs that quickly because the loss changes the reactive support it is counting on in Real-time.
Reference: VAR-002-4.1 R3
An automatic voltage regulator trips at 14:05 and is back in service at 14:22. What does VAR-002-4.1 oblige the Generator Operator to do about that status change?
- A. Notify the Transmission Operator before 14:35 regardless
- B. Nothing, as the status returned within 30 minutes
- C. Report the trip to its Reliability Coordinator today
- D. Hold a record for the Transmission Planner's next request
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Answer B Nothing, as the status returned within 30 minutes
R3 sets a 30-minute notification window but excuses the notification entirely when the status is restored within 30 minutes of the change, and 14:05 to 14:22 is 17 minutes. Had the regulator stayed out past 14:35, the notification would have been due.
Reference: VAR-002-4.1 R3
