PJM Generation Dispatcher Exam PRACTICE

PJM Generation Dispatcher Exam PRACTICE An EXCITER on a traditional generator does what? - CORRECT ANSWER-Voltage regulation (AVR) if you change the excitation current, you change the voltage. ECO Min, ECO Max, and EMERG Max are genrator _________________. - CORRECT ANSWER-Limits When synchronizing to the interconnection, what needs to be synchronized? - CORRECT ANSWER-Frequency, Voltage, and phase angle. GMD (GeoMagnetic Disturbance) procedure is implemented when? - CORRECT ANSWER-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? - CORRECT ANSWERElevated and Imminent. What action does PJM take for a terrorist attack, fuel delivery emergency, or GMD's? - CORRECT ANSWER-Conservative Operations What does PJM put the most emphasis on during a terrorist/sabotage event? - CORRECT ANSWER-Operations and Communications What does PJM request during a low voltage alert? - CORRECT ANSWER-RRC - reactive reserve check PJM issues a Heavy Load Voltage Warning how many hours prior to implementation? - CORRECT ANSWER-4 hours What should generation owners/operators do during a High System Voltage Action? - CORRECT ANSWER-Operate at the lower bandwidth of the voltage schedule. How many hours do you have to report a 24-hr reportable NERC disturbance? - CORRECT ANSWER-6 hours What report is generated during a Max Emergency Gen Alert? - CORRECT ANSWERSSR - Supplementary Status Report What part of the SSR is the Fuel Limited Resources accounted for? - CORRECT ANSWER-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? - CORRECT ANSWER-Actions What is the per Unit (p.u.) for a 345 kV nominal voltage that is currently at 348 kV? - CORRECT ANSWER-348/345 = 1.008 pu What is the Emergency Reducible Generation (ERG) if the Eco Min is 100 and the Emergency Min is 75? - CORRECT ANSWER-Eco Min - Emerg Min = 25MW How many Black Start units are required for critical load/TO zone? - CORRECT ANSWER-2 Black Start units What is the minimum amount of hours for fuel supply for Black Start units? - CORRECT ANSWER-10 hours, must notify PJM when it reaches that level. Regulation must be attainable within how many minutes? - CORRECT ANSWER-5 ACE - Area Control Error is used to balance what 2 things? - CORRECT ANSWERGeneration and Load If your ACE in your control area is -1500, what would you do? - CORRECT ANSWER100% spinning (synchronized) reserves Synchronized reserves is generation output from a synchronized resource that can be increased w/in 10 min or? - CORRECT ANSWER-Reduction in load from a synchronized resource w/in 10 min. When data exchange between PJM and Member Company is not available what will PJM do? - CORRECT ANSWER-Manual Dispatch The satellite phone test is required of generator operating control centers with one or more units totaling how many MW's? - CORRECT ANSWER-500 MW What is the maximum overall inaccuracy allowed for data exchange? - CORRECT ANSWER-2% What size generating units must provide instantaneous power and reactive flow data? - CORRECT ANSWER-10 MW and above How often must PJM be updated for manually entered data? - CORRECT ANSWER-30 min How often is generator reactive capability testing required? - CORRECT ANSWEREvery 5 yrs. How much notification is required to bring a self-scheduled unit online? - CORRECT ANSWER-20 min What time of the day does the DA- Day ahead market close? - CORRECT ANSWER1200 EST and all bids must be in by this time. Eco Min, Eco Max, and Emerg max are all generator ______________ . - CORRECT ANSWER-Limits What time is the rebidding period for the DA market? - CORRECT ANSWER-4 - 6 pm Who specifies the voltage/reactive power schedule? - CORRECT ANSWER-TO - transmission owner PJM requires generators that are greater than what level to follow a voltage schedule? - CORRECT ANSWER-20 MVA or aggregated 75 MVA PJM sends what signals to Market Operation Centers? - CORRECT ANSWER-ACE, Regulation, and Dispatch PJM instructs your Generator to come online. From what time to the time it is running? - CORRECT ANSWER-Notification time + Time to start Operating reserves consists of what? - CORRECT ANSWER-Synchronized reserves, non-synchronized reserves (quick start), and supplemental reserves (secondary) Regulating units (demand response resources) provide a variable amount of generation under automatic control to provide what? - CORRECT ANSWER-Correction for small deviations in load. Where's the ideal point for regulation to operate? - CORRECT ANSWER-Midpoint What type of outage may be deferred to beyond the next weekend or can be postponed to the following Mon morning at 0800? - CORRECT ANSWER-Maintenance outage How long is a maintenance outage during PPM- Peak Period Maintenance? - CORRECT ANSWER-9 days