NERC Prep - Bal, Int, & Trans Test Questions With Verified Answers

b. NERC Operating Committee - Answer What group can approve a change in the Disturbance Recovery Period for an Interconnection? a. NERC Interconnection Working Group b. NERC Operating Committee c. NERC Regional Council d. NERC Disturbance Analysis Working Group c. Check targets and equipment - Answer What is the first thing an operator should do after a relay operation? a. Check power system stabilizers b. Notify adjacent Transmission and Balancing areas c. Check targets and equipment d. Notify their PSE that the transmission path is out of service c. Tie Lines - Answer For the ACE equation to work properly, dynamic schedules, pseudo ties, frequency calculations, and all ________ must be metered. a. Communications b. Transformers c. Tie Lines d. Generation c. Energy Emergency Alert Level I - Answer What Energy Alert Level would the following example be categorized as? "A Balancing Authority, Reserve Sharing Group, or Load Serving Entity foresees, or is experiencing conditions where all available resources are committed to meet firm load, firm transactions, etc, and requests an Energy Emergency Alert." a. Energy Emergency Alert Level IV b. Energy Emergency Alert Level III c. Energy Emergency Alert Level I d. Energy Emergency Alert Level II b. Implement the appropriate congestion management procedure. - Answer You are a Reliability Coordinator in the Eastern Interconnection. A flow gate has become overloaded because a parallel 345kV line has relayed out and part of that load has transferred over to the flow gate causing an SOL and possible IROL violation. What would you do to relieve this violation? a. Notify another Reliability Coordinator and ask them if they are having any problem, and what should you do. b. Implement the appropriate congestion management procedure. c. Issue a Transmission warning to the Transmission Operators that lost the 345kV line. d. Place the line back in service within 30 minutes. b. Adjacent Balancing Authorities - Answer Interchange schedules may be implemented between _______________________. a. Source and Sink Balancing Authorities b. Adjacent Balancing Authorities c. Sending, Receiving and Intermediate Balancing Authorities in the same Region. d. Balancing Authorities in the same Interconnection. a. Frequency will continue to drop, generator governor response, decrease in load. - Answer When the frequency of an Interconnection decreases due to the loss of a large generator, the ________________ until the combination of both ____________ and ______________ replace the output of the lost generator. a. Frequency will continue to drop, generator governor response, decrease in load b. Frequency will continue to drop, generator governor response, voltage regulating transformer response c. Voltage will continue to raise, generator AVR response, voltage regulating transformer response d. Voltage will continue to raise, generator AVR response, decrease in load a. That all involved reliability entities determined that there is no reliability problems with the Arranged Interchange. - Answer In developing and setting up an Arranged Interchange, which of the following would transition the Arranged Interchange to the Confirmed Interchange status? a. That all involved reliability entities determined that there is no reliability problems with the Arranged Interchange. b. The Department of Energy (DOE) made an in-depth study of the Interchange Agreement and determined that it would have an adverse affect on the Interconnection. c. There are available resources to meet the load. d. All parties involved realized that they would not lose money for their company with this Interchange Agreement. b. He violated NERC standards - Answer Early in the afternoon, a system operator notices that frequency has dropped to 59.95Hz and his balancing area's ACE is 0. In order to correct the under frequency condition, the operator pulses his generators to increase generation. Which statement best describes his actions? a. He followed NERC guidelines b. He violated NERC standards c. He helped the system d. He has not impacted the system d. 81 MVars - Answer Voltage of a 345kV transmission line is at 90% of normal. If you energize a capacitor rated at 100MVar, what will the actual MVars gained? a. 60 MVars b. 30 MVars c. 50 MVars d. 81 MVars b. No further system operating action is required. - Answer A Balancing Area's pre-contingency ACE is -40 MW (below the zero balance point). At 1525, event time ZERO, the BA looses 800 MW of generation; initial governor action arrests frequency decay and shows the BA's ACE is now -825 MW. At 1542 the BA's ACE has returned to -42 MW and the system frequency is 60.001Hz. Assuming that this event is within the DCS reporting criteria, what other action is the BA required to take? a.BA must notify the RC that Energy Emergency Alert is required to return ACE to ZERO. b. No further system operating action is required. c. The BA recovered more than 80% of its most severe single largest contingency within 15 minutes. No EEA is required. d. The BA must notify the RC that a unit has been lost and EEA Level 1 is required. b. Ground Fault - Answer A tree has been growing under a 230kV transmission line getting closer every year. As a result of the heavy transfer of megawatts on this particular day, the line sags too close and flashes over to the tree causing the transmission line to relay out. What type of fault would this fault be classified as? a. Overvoltage Fault b. Ground Fault c. Differential Fault d. Positive Sequence Fault b. CPS1 greater than or equal to 100% and CPS2 greater than or equal to 90% - Answer To conform to the CPS requirements, a Balancing Authority must have a __________________. a. CPS1 greater than or equal to 90% or CPS2 greater than or equal to 110% b. CPS1 greater than or equal to 100% and CPS2 greater than or equal to 90% c. CPS1 greater than or equal to 200% and CPS2 greater than or equal to 100% d. CPS1 greater than or equal to 90% and CPS2 greater than or equal to 100% a. Past load patterns - Answer In order to predict the system's near term load pattern, a system operator must have information including weather forecasts and _____________. a. Past load patterns b. Generator overhaul schedules c. Sufficient metering d. Generator efficiency ratings a. No tag is needed because the emergency transaction has duration less than 60 minutes. - Answer A Balancing Authority has unexpectedly lost 300 MW of generation and has arranged to receive emergency energy from a neighboring Balancing Authority for 40 minutes, after which the emergency energy will be replaced by an energy purchase from a PSE. Which of the following is a correct statement for the operating reserve transaction? a. No tag is needed because the emergency transaction has duration less than 60 minutes. b. The PSE must provide a tag for the emergency energy within 60 minutes c. The Sink Balancing Authority must provide a tag for the emergency energy within 60 minutes d. The Source Balancing Authority for the emergency energy must provide a tag within 60 minutes