Nerc study set - Study guides, Class notes & Summaries

1. If a 500 kV transmission line with a surge impedance loading of 800 MW is currently loaded at 1400 MW, which of the following events would most likely occur? a. Generator MVAR output would increase b. All system capacitors would trip off-line c. Generator MVAR output would decrease d. All automatic reactors would connect to the system a. Generator MVAR output would increase 2. When system conditions are such that emergency procedures are expected to be implemented, which of the fo...

1. If a 500 kV transmission line with a surge impedance loading of 800 MW is currently loaded at 1400 MW, which of the following events would most likely occur? a. Generator MVAR output would increase b. All system capacitors would trip off-line c. Generator MVAR output would decrease d. All automatic reactors would connect to the system - Answer a. Generator MVAR output would increase 2. When system conditions are such that emergency procedures are expected to be implemented, which of ...

NERC Practice Set 3 Questions with complete solution 2023 b. Perform power flow study in preparation of opening Line 1 - correct answer Your system is experiencing heavy loading and low voltage . What is the first response for a System Operator ? a) Take lines out of service b) Put capacitors in service c) Put reactors in service d) Lower loads - correct answer b) Put capacitors in service Which of the following action is appropriate for mitigating heavy power transfer on...

A transmission line is operating with a voltage phase angle different of 30 degrees between the sending Vs and the receiving bus Vr. If the receiving end load is suddenly increased, the voltage phase angle difference will be? The phase angle will increase. When load is increased phase angle will increase. A load has a power factor of 0.9 lagging. If the load draws 100 MVA, what is the MW draw? 90 pf= mw/mva The high side of a delta-wye connection transformer is connected to a power s...

SOS NERC RELIABILITY EXAM QUESTIONS & ANSWERS LATEST GRADED A+. The Reliability Coordinator just informed you of a slow time error correction which will begin at the top of the next hour. Your EMS system will not let you change your scheduled frequency. Your Frequency Bias Setting is -100 MW/.1Hz. What action should you take? A) Increase Net Interchange Schedule by 20 MWs. B) Inform the Reliability Coordinator that you cannot participate in the time error correction. C) Decrease Net Inte...

NERC Practice Set 3 Question and answers rated A+ 2023b. Perform power flow study in preparation of opening Line 1 - correct answer Your system is experiencing heavy loading and low voltage . What is the first response for a System Operator ? a) Take lines out of service b) Put capacitors in service c) Put reactors in service d) Lower loads - correct answer b) Put capacitors in service Which of the following action is appropriate for mitigating heavy power transfer on a transm...

The Reliability Coordinator just informed you of a slow time error correction which will begin at the top of the next hour. Your EMS system will not let you change your scheduled frequency. Your Frequency Bias Setting is -100 MW/.1Hz. What action should you take? A) Increase Net Interchange Schedule by 20 MWs. B) Inform the Reliability Coordinator that you cannot participate in the time error correction. C) Decrease Net Interchange Schedule by 20 MWs. D) Increase Net Interchange Sche...

The Reliability Coordinator just informed you of a slow time error correction which will begin at the top of the next hour. Your EMS system will not let you change your scheduled frequency. Your Frequency Bias Setting is -100 MW/.1Hz. What action should you take? A) Increase Net Interchange Schedule by 20 MWs. B) Inform the Reliability Coordinator that you cannot participate in the time error correction. C) Decrease Net Interchange Schedule by 20 MWs. D) Increase Net Interchange Sche...

1. If a 500 kV transmission line with a surge impedance loading of 800 MW is currently loaded at 1400 MW, which of the following events would most likely occur? a. Generator MVAR output would increase b. All system capacitors would trip off-line c. Generator MVAR output would decrease d. All automatic reactors would connect to the system - ANSWER-a. Generator MVAR output would increase 2. When system conditions are such that emergency procedures are expected to be implemented, which of ...

NERC RC Exam Questions With Correct Answers What is ACE? - answer(NIa - NIs) - 10β(fa - fs) - Ime Calculated every 6 seconds Uses Tie line Frequency Bias What is Tie line deviation? - answerLargest offset to ACE What is NIA? - answerNet Interchange Actual (sum of all tie-line values) What is NIS? - answerNet Interchange Scheduled (sum of all interchange schedules) What is the multiplier for frequency bias? - answer10 What is β? - answerFrequency bias - represented as negative number i...