SOS NERC PREP - RELIABILITY EXAM LATEST 2024 ACTUAL EXAM 200 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+

SOS NERC PREP - RELIABILITY EXAM LATEST 2024 ACTUAL EXAM 200 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+ A Balancing Authority has a 200 MW/0.1 Hz frequency bias with zero schedules. Frequency is 60.00 Hz and ACE is 0, what should the sum of all the Balancing Authorities Interconnection ties equal? A) Small MW amount out of the BA B) System Load C) Zero D) Total Generation - ANSWER- C) Zero A simple power system is composed of three transmission lines that connect the generation area to the load area. The three lines are different lengths, but each line has the same impedance. Each line is initially loaded at 200 MW. The SOL of each line is 400 MW. If one of the three lines trips, what will be the loading on the shortest remaining line and will the SOL of either remaining line be violated? A) 400 MW/Yes B) 400 MW/No C) 300 MW/Yes D) 300 MW/No - ANSWER- D) 300 MW/No During a lightning storm, a fault on a transmission line results in the transmission relay operating and locking-out. The transmission line cannot be returned to service. After running a contingency analysis, the Transmission Operator realizes that if another transmission line relays, there could be cascading outages into a neighboring system. Which of the following actions is appropriate for the Transmission Operator? A) Reduce transmission voltages by 5% to reduce customer demand. B) Notify others in the Interconnection of the situation via an Interconnection-wide telecommunications system. C) Continue operations without notifying anyone but try to reduce system loading. D) Prepare a disturbance report and forward it to the Reliability Coordinator. - ANSWER- B) Notify others in the Interconnection of the situation via an Interconnection-wide telecommunications system. A Generator Operator has some vibration problems with a 500MW coal fired steam generator. As the result of the vibration problems the Generator Operator has to set the maximum reactive power production for that unit at 25 Megavar instead of the normal 200 Megavar. Who should the generator operator notify as the result of this problem? A) Transmission Operator B) System Coordinator C) Department of Energy (DOE) D) Regional Reliability Organization - ANSWER- A) Transmission Operator A high voltage transmission line was scheduled out for routine maintenance several weeks in advance. On the scheduled outage date, field personnel call to inform the system operator that they will be taking the line out of service. Bad weather the previous day has forced other outages. What should the system operator do? A) Wait until peak is over to make a decision B) Run a power flow study to determine the effects of this line outage C) Do not allow the outage D) Allow the outage because it was scheduled in advanced - ANSWERB) Run a power flow study to determine the effects of this line outage Interconnection frequency is 60.20 Hz. Your ACE is a large positive value and your AGC is pulsing your units down. What should you do? A) Suspend AGC and investigate. B) Place AGC in flat tie line control. C) Leave AGC in operation as your units respond. D) Place AGC in constant frequency control. - ANSWER- C) Leave AGC in operation as your units respond. Which of the following is the most common effect of a Geomagnetic Disturbance on the power system? A) Increase static electricity B) Transformer cores becoming saturated C) Generator output varies D) Abnormal VAR direction - ANSWER- B) Transformer cores becoming saturated In a power system, which type of power provides indication of voltage problems, is critical for support of heavily loaded transmission lines, and is necessary to have sufficient dynamic reserves in preparation for a contingency? A) Solar Power B) Real Power C) Reactive Power D) Apparent Power - ANSWER- C) Reactive Power You are a transmission operator and you have several large generators operating at full load on the western portion of your transmission system