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NERC TOP System Operations with all Correct & 100% Verified Answers |Actual Complete Update |Already Graded A

HEAL100 Health Care — exam and revision material · Other

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Health Care exam material, 16 pages. Originally published on StudyMerit.

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16
Academic year
2025/2026
Language
English

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nerc mix question miss Leave the first rating Students also studied Science Engineering Electrical Engineering Save Groups Flashcard sets Study guides NERC Refresh 73 terms kaelahunter323 Preview PRACTICE QUESTIONS SET 1 410 terms NERC_STUDY_MATE... Preview Transmission Application 15 terms jackatkins12 Preview NERC C 100 term abb A line is operating at 125% (25% above its SOL) following several parallel line outages caused by a severe storm. The flow on this line is from Bus A, which is north, to Bus B, which is south. As a System Operator, you decide to use generation redispatch to relieve the line loading problem. What should your course of action be? 1.Increase generation on the north side of Bus A and decrease generation on the south side of Bus B. 2.Decrease generation on the north side of Bus A and increase the generation on the south side of Bus B. 3.Decrease generation on the north side of Bus A and decrease generation on the south side of Bus B. 4.Increase generation on the north side of Bus A and increase generation on the south side of Bus B answer 2. Power is flowing from the north to the south by way of Line A-B. This means the demand is south of Bus B. The corrective action would be to increase the generation south of Bus B to serve the demand with increased generation in that area, at the same time decreasing the generation north of Bus A. These actions will relieve some of the loading problems on line A-B. If a Real-time control center becomes non-operational, the Real-time System Operators are expected to do which of the following? 1.Activate their backup control center within 1 hour 2.Read the Operating Plan for backup functionality for the first time 3.Notify the Regional Reliability Organization 4.Implement their Operating Plan for Loss of Control Center Functionality EOP-008 states, "Each Reliability Coordinator, Balancing Authority, and Transmission Operator shall have a current Operating Plan describing the manner in which it continues to meet its functional obligations with regard to the reliable operations of the BES in the event that its primary control center functionality is lost." Backup functionality must be implemented within 2 hours - NERC Standard EOP-008 answer 4. Terms in this set (66) Hide definitions

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At 1105 frequency drops to 59.95 Hz due to a disturbance elsewhere in the Interconnection. The frequency returns to 60.00 Hz approximately 15 minutes later. Balancing Authority A's ACE is zero for the entire hour. How would this affect Balancing Authority A's Inadvertent Interchange for that hour? 1.Inadvertent would remain unchanged since ACE was zero the entire hour. 2.There is not enough information to determine Inadvertent for the hour. 3.BA "A" would accumulate negative Inadvertent for the hour. 4.BA "A" would accumulate positive Inadvertent for the hour BAL-006 states, "Each Balancing Authority shall calculate and record hourly Inadvertent Interchange." When there is a loss of generation due to a disturbance in a balancing area, energy will flow from the remaining balancing areas in accordance with each Balancing Authority's frequency response characteristic. This will result in an increase in Inadvertent Interchange until the deficient Balancing Authority corrects its ACE. answer 4. A contingency results in the exceedance of an IROL. What could be the result if the IROL is allowed to be exceeded longer than its TV? 1.The transmission line could fail 2.Interruption of power to a large part of the BES 3.Protective relays could fail 4.Loss of power to a local area Interconnection Reliability Operating Limit TV: The maximum time that an Interconnection Reliability Operating Limit can be violated before the risk to the interconnection or other Reliability Coordinator Area(s) becomes greater than acceptable. Each Interconnection Reliability Operating Limit's Tv shall be less than or equal to 30 minutes. A basement fire forces the evacuation of a Reliability Coordinator's primary control center. How long does the Reliability Coordinator have to transition to and fully implement backup functionality? Within 30 minutes Within 1 hour By the next shift Within 2 hours Backup functionality must be implemented within 2 hours. Reliability Coordinators are required to have a backup control center. t A voltage collapse is an uncontrollable reduction is system voltage caused by a deficiency of reactive power to serve the inductive load. This condition can be a result of which of the following? A) Heavy power transfers B) Forced transmission outages C) Forced reactive resource outages such as generators and shunt capacitors B and C A, B, and C C only A and B A only B only The net reactive impact of a heavily loaded transmission line is inductive. A transmission line loaded above its SIL will consume more MVARs than it will produce. If a transmission line trips or is removed from service, the MW on that line will redistribute to other parallel lines possibly loading those lines above their SIL,and causing the remaining lines to become more inductive. The loss of a capacitor bank, generator, or a transmission line will reduce the total amount of MVARs being produced on the system.

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Station A's primary bus is connected to Station B's primary bus by a 230 kV transmission line. Both stations have a 100 MVAR switchable shunt capacitor bank currently off line. The SOL on this line is 350 MVA. The System Operator notices that the flows on the line are as follows: 345 MW from Station A towards Station B 100 MVAR from Station B towards Station A What should the System Operator do to return the system to its operating limits? Place the capacitor bank on line at Station A. Request a TLR. Place the capacitor bank on line at Station B. Remove the transmission line from service Based on The Power Triangle, we know that MVA2 = MW2 + MVAR2. Therefore, we can calculate that the MVA flow on the line is 359.2 MVA. More simply, we can see that if the MW flow on the line is 345 MW and the MVAR flow on the line is 100 MVAR, then the line loading must exceed the SOL of the line of 350 MVA. Energizing the capacitor bank at Substation A will reduce the MVAR support requirements flowing from Station B and reduce the total power, or MVA flow on the line You are the Source Balancing Authority for an Arranged Interchange Transaction request. The request has a non- standard ramp rate specified. What action should you take? Ignore the request Approve the request if able to accommodate Call the Reliability Coordinator for guidance Deny the request Balancing Authority A has implemented rotating blackouts of their native load customers due to a generation deficiency. What level Energy Emergency Alert would the RC declare for this Balancing Authority? EEA Level 2 EEA Level 1 EEA Level 0 Approve the request if able to accommodate If a line is loaded above its SIL, how does that affect the line and the voltage? The line becomes more inductive and the voltage drops. The line becomes less inductive and the voltage increases. The line becomes more inductive and the voltage increases. The line becomes less inductive and the voltage drops. The Surge Impedance Loading, or SIL, is the MW loading on a transmission line at which the line's natural reactive power production equals its reactive power usage. If the MW loading exceeds the SIL the transmission line will consume more MVAR than it is producing causing voltage to decline. VAR-001 ensures that voltage levels, reactive flows, and reactive resources are monitored, controlled, and maintained within limits in Real-time to protect equipment and the reliable operation of the Interconnection. - NERC Standard VAR-001

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