PJM Exam Que stions and Answers 100% Correct During reactive testing, which entity must give approval to change an approved voltage schedule? PJM, TOP, MOC, GO - Correct Answer ✔️✔️-TO Generation available within 10 minutes for offline reserve units: Quick -start (hydro), manual, operating, supplemental - Correct Answer ✔️✔️-Quick -start (hydro) Minimum MVARs for an individual generator that is required to do reactive testing? - Correct An swer ✔️✔️-20 MVA Minimum MVARs for an aggregate of generators that is required to do reactive testing? - Correct Answer ✔️✔️-75 MVA Power transformer is connected to the generator with which line? - Correct Answer ✔️✔️-
Primary In a balancing authority regi on, If a site trips offline, what increases? - Correct Answer ✔️✔️-positive time error How many hours before NERCs 24hour deadline ends must you report disturbance to PJM? - Correct Answer ✔️✔️-6 hrs How does PJM avoid dealing with economic issues during t ransmission related constraints - Correct Answer ✔️✔️-cost (offer) capping generation If a generator doesn't have ICCP, what does it have to be linked through so data is available? - Correct Answer ✔️✔️-SCADA (through EMS) Which balancing control mode is u sed by PJM under normal operations? - Correct Answer ✔️✔️-Tie line bias the purpose for balancing area to have AR (area regulator) is to correct for: - Correct Answer ✔️✔️-small deviations in load what esuite tool is used to maintain individual generator r egulation data that is submitted by PJM members? - Correct Answer ✔️✔️-eMarket cold weather alert is for what temp? - Correct Answer ✔️✔️-10F what are the three types of transmission constraint that PJM monitors? - Correct Answer ✔️✔️-Reactive, Stability, Thermal (transfer limits) which would be the last step PJM would take in attempting to relieve a transmission constraint? - Correct Answer ✔️✔️-shed load Load in PJM is generally served using ___ transmission service. - Correct Answer ✔️✔️-
Network Integrat ion If you were going to import, export, or wheel power through PJM, you would use ____ transmission services? - Correct Answer ✔️✔️-point -to-point? what is an example of a quick start reserve? - Correct Answer ✔️✔️-Hydroelectric In order to lower system v oltage, ___ must decrease to decrease _____ - Correct Answer ✔️✔️-MW, MVAR what is PJM's reg requirement during a system restoration? - Correct Answer ✔️✔️-2% of current load During restoration conditions, what amount of load must be shed in order to incre ase frequency by 1.0Hz - Correct Answer ✔️✔️-6-10% During restoration conditions, what percentage of load must be shed in order to alter frequency by 1% Hz? - Correct Answer ✔️✔️-1-2% of load to alter frequency by 1% What is the approx. MVAR per mile of 50 0kV transmission that should be anticipated? - Correct Answer ✔️✔️-1.70 MVAR per mile Frequency during restoration process should be: - Correct Answer ✔️✔️-59.75 -61Hz A system will blackout at what frequency? - Correct Answer ✔️✔️-57.5 Hz or lower What is the criteria for PJM to issue a Min Gen Alert? - Correct Answer ✔️✔️-Within 2500 MW of normal eco min limits Based on a generator capability curve, in order to maximize the MVAR output of the generator, it may be necessary to: - Correct Answer ✔️✔️-decreas e MW output It would be an acceptable action for PJM to request of a generator during periods of heavy flows (load) and low voltages to lower real -time power output to ... - Correct Answer ✔️✔️-increase reactive power lowering the generator's current and increasing the voltage will also increase: - Correct Answer ✔️✔️-MVARs (reactive power) PJM dispatches supply resources in what order to meet customer demand? - Correct Answer ✔️✔️-lowest to highest cost If supply excee ds demand, what will system frequency be? - Correct Answer ✔️✔️-
greater than 60 Hz
Primary In a balancing authority regi on, If a site trips offline, what increases? - Correct Answer ✔️✔️-positive time error How many hours before NERCs 24hour deadline ends must you report disturbance to PJM? - Correct Answer ✔️✔️-6 hrs How does PJM avoid dealing with economic issues during t ransmission related constraints - Correct Answer ✔️✔️-cost (offer) capping generation If a generator doesn't have ICCP, what does it have to be linked through so data is available? - Correct Answer ✔️✔️-SCADA (through EMS) Which balancing control mode is u sed by PJM under normal operations? - Correct Answer ✔️✔️-Tie line bias the purpose for balancing area to have AR (area regulator) is to correct for: - Correct Answer ✔️✔️-small deviations in load what esuite tool is used to maintain individual generator r egulation data that is submitted by PJM members? - Correct Answer ✔️✔️-eMarket cold weather alert is for what temp? - Correct Answer ✔️✔️-10F what are the three types of transmission constraint that PJM monitors? - Correct Answer ✔️✔️-Reactive, Stability, Thermal (transfer limits) which would be the last step PJM would take in attempting to relieve a transmission constraint? - Correct Answer ✔️✔️-shed load Load in PJM is generally served using ___ transmission service. - Correct Answer ✔️✔️-
Network Integrat ion If you were going to import, export, or wheel power through PJM, you would use ____ transmission services? - Correct Answer ✔️✔️-point -to-point? what is an example of a quick start reserve? - Correct Answer ✔️✔️-Hydroelectric In order to lower system v oltage, ___ must decrease to decrease _____ - Correct Answer ✔️✔️-MW, MVAR what is PJM's reg requirement during a system restoration? - Correct Answer ✔️✔️-2% of current load During restoration conditions, what amount of load must be shed in order to incre ase frequency by 1.0Hz - Correct Answer ✔️✔️-6-10% During restoration conditions, what percentage of load must be shed in order to alter frequency by 1% Hz? - Correct Answer ✔️✔️-1-2% of load to alter frequency by 1% What is the approx. MVAR per mile of 50 0kV transmission that should be anticipated? - Correct Answer ✔️✔️-1.70 MVAR per mile Frequency during restoration process should be: - Correct Answer ✔️✔️-59.75 -61Hz A system will blackout at what frequency? - Correct Answer ✔️✔️-57.5 Hz or lower What is the criteria for PJM to issue a Min Gen Alert? - Correct Answer ✔️✔️-Within 2500 MW of normal eco min limits Based on a generator capability curve, in order to maximize the MVAR output of the generator, it may be necessary to: - Correct Answer ✔️✔️-decreas e MW output It would be an acceptable action for PJM to request of a generator during periods of heavy flows (load) and low voltages to lower real -time power output to ... - Correct Answer ✔️✔️-increase reactive power lowering the generator's current and increasing the voltage will also increase: - Correct Answer ✔️✔️-MVARs (reactive power) PJM dispatches supply resources in what order to meet customer demand? - Correct Answer ✔️✔️-lowest to highest cost If supply excee ds demand, what will system frequency be? - Correct Answer ✔️✔️-
greater than 60 Hz
