NERC EXAM PREPARATION QUESTIONS AND CORRECT ANSWERS

NERC EXAM PREPARATION QUESTIONS AND CORRECT ANSWERS BAAL DOES NOT APPLY - Correct Answer: According to BAAL requirements of BAL-001, which of the following statements is true when actual frequency is greater than Scheduled Frequency? Tie Lines - Correct Answer: The ACE equation must include metered data: dynamic schedules, pseudo ties, actual frequency and all__________________ ACE - Correct Answer: A Balancing Authority has a sudden change in demand-supply balance due to a sudden loss of load or generation in their area. The sudden change will be seen instantaneously in which calculated value_____________ 120 MW - Correct Answer: An external generator tripped that was large enough to reduce the frequency from 60.00 Hz to 59.94 Hz. Your balancing Authority's Frequency Bias is 200 MW/0.1 Hz. how many MW would your system initially contribute to frequency support? increase MW output - Correct Answer: Balancing Authority A is currently reading a system frequency of 59.95 Hz. It's Net Actual Interchange is +100 MW and it's Net Scheduled Interchange is +120 MW. If Balancing Authority A's Frequency Bias setting is -100 MW/0.1 Hz, Balancing Authority A's AGC is pulsing its generators to Generator governor control systems - Correct Answer: Which control system on the generators would respond to a drop in system frequency resulting from a loss of generation? 2% - Correct Answer: Load increase in relation to the increase or decrease in frequency. It has been determined that for every 1% change in frequency, load will change approximately ___________% in the same direction in an interconnection system. Large Capacity; small droop setting - Correct Answer: A BA has several units on governor control. The units have different capacities that range from 200 MW to 1000 MW and droop settings from 2% to 5%. The biggest adjustments in MW output in response to to a frequency disturbance will be provided by units that have__________ flat frequency control - Correct Answer: A BA that is operating asynchronously (separated from the interconnection) should switch its AGC to which mode____________ Both the Interchange and frequency portions will contribute - Correct Answer: if the BA selling power to an end user enters the wrong schedule for the upcoming hour, which part of the ACE equation (ACE= (NIa- NIs)-10B(Fa-Fs)-Ime) will cause Inadvertent Interchange to occur as a result of the incorrect schedule? unilateral Payback - Correct Answer: Inadvertent interchange accumulations that are paid back by controlling to a target of non-zero ACE while not exceeding the BAAL is known as, to ensure that the BA's do not excessively depend on other BA areas for meeting their demand or Interchange obligations. - Correct Answer: What is the purpose in accounting for Inadvertent Interchange among the BA's