PJM Generation Dispatcher Exam Practice Questions with Verified Answers

PJM Generation Dispatcher Exam Practice Questions with Verified Answers An EXCITER on a traditional generator does what? Voltage regulation (AVR) if you change the excitation current, you change the voltage. ECO Min, ECO Max, and EMERG Max are genrator _________________. Limits When synchronizing to the interconnection, what needs to be synchronized? Frequency, Voltage, and phase angle. GMD (GeoMagnetic Disturbance) procedure is implemented when? 10A or greater is measured by special equipment at Missouri Ave or Meadowbrook and the measurement is confirmed by one of the following other sources: Excess transformer current @ Meadowbrook, Beddington, Donbs, or Black Oak, high MVAR requirements on transformers @ Hopw Creek or Salem nuclear subs, or high DC measurements @ Limerick or Peach Bottom. What are the 2 types of National Terrorism Advisory Alerts? Elevated and Imminent. What action does PJM take for a terrorist attack, fuel delivery emergency, or GMD's? Conservative Operations What does PJM put the most emphasis on during a terrorist/sabotage event? Operations and Communications What does PJM request during a low voltage alert? RRC - reactive reserve check PJM issues a Heavy Load Voltage Warning how many hours prior to implementation? 4 hours What should generation owners/operators do during a High System Voltage Action? Operate at the lower bandwidth of the voltage schedule. How many hours do you have to report a 24-hr reportable NERC disturbance? 6 hours What report is generated during a Max Emergency Gen Alert? SSR - Supplementary Status Report What part of the SSR is the Fuel Limited Resources accounted for? Part G Resource Limited Units which are units that are not able to run at max capacity for more than 72 hours. What kind of Emergency Procedures occur during real time operating hours? Actions What is the per Unit (p.u.) for a 345 kV nominal voltage that is currently at 348 kV? 348/345 = 1.008 pu What is the Emergency Reducible Generation (ERG) if the Eco Min is 100 and the Emergency Min is 75? Eco Min - Emerg Min = 25MW How many Black Start units are required for critical load/TO zone? 2 Black Start units What is the minimum amount of hours for fuel supply for Black Start units? 10 hours, must notify PJM when it reaches that level.