PJM Generation Dispatcher Exam Practice | UPDATED
Questions with 100% Verified Answers
Q1: An EXCITER on a traditional generator does what?
A: Voltage regulation (AVR) if you change the excitation current, you change the voltage.
Q2: ECO Min, ECO Max, and EMERG Max are genrator
_________________.
A: Limits
Q3: When synchronizing to the interconnection, what needs to be
synchronized?
A: Frequency, Voltage, and phase angle.
Q4: GMD (GeoMagnetic Disturbance) procedure is implemented
when?
A: 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.
Q5: What are the 2 types of National Terrorism Advisory Alerts?
A: Elevated and Imminent.
Q6: What action does PJM take for a terrorist attack, fuel delivery
emergency, or GMD's?
A: Conservative Operations
Q7: What does PJM put the most emphasis on during a
terrorist/sabotage event?
A: Operations and Communications
Q8: What does PJM request during a low voltage alert?
A: RRC - reactive reserve check
Q9: PJM issues a Heavy Load Voltage Warning how many hours
prior to implementation?
A: 4 hours
, Q10: What should generation owners/operators do during a High
System Voltage Action?
A: Operate at the lower bandwidth of the voltage schedule.
Q11: How many hours do you have to report a 24-hr reportable
NERC disturbance?
A: 6 hours
Q12: What report is generated during a Max Emergency Gen Alert?
A: SSR - Supplementary Status Report
Q13: What part of the SSR is the Fuel Limited Resources accounted
for?
A: Part G Resource Limited Units which are units that are not able to run at max capacity for
more than 72 hours.
Q14: What kind of Emergency Procedures occur during real time
operating hours?
A: Actions
Q15: What is the per Unit (p.u.) for a 345 kV nominal voltage that is
currently at 348 kV?
A: 348/345 = 1.008 pu
Q16: What is the Emergency Reducible Generation (ERG) if the Eco
Min is 100 and the Emergency Min is 75?
A: Eco Min - Emerg Min = 25MW
Q17: How many Black Start units are required for critical load/TO
zone?
A: 2 Black Start units
Q18: What is the minimum amount of hours for fuel supply for Black
Start units?
A: 10 hours, must notify PJM when it reaches that level.
Q19: Regulation must be attainable within how many minutes?
A: 5
Q20: ACE - Area Control Error is used to balance what 2 things?
A: Generation and Load
Questions with 100% Verified Answers
Q1: An EXCITER on a traditional generator does what?
A: Voltage regulation (AVR) if you change the excitation current, you change the voltage.
Q2: ECO Min, ECO Max, and EMERG Max are genrator
_________________.
A: Limits
Q3: When synchronizing to the interconnection, what needs to be
synchronized?
A: Frequency, Voltage, and phase angle.
Q4: GMD (GeoMagnetic Disturbance) procedure is implemented
when?
A: 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.
Q5: What are the 2 types of National Terrorism Advisory Alerts?
A: Elevated and Imminent.
Q6: What action does PJM take for a terrorist attack, fuel delivery
emergency, or GMD's?
A: Conservative Operations
Q7: What does PJM put the most emphasis on during a
terrorist/sabotage event?
A: Operations and Communications
Q8: What does PJM request during a low voltage alert?
A: RRC - reactive reserve check
Q9: PJM issues a Heavy Load Voltage Warning how many hours
prior to implementation?
A: 4 hours
, Q10: What should generation owners/operators do during a High
System Voltage Action?
A: Operate at the lower bandwidth of the voltage schedule.
Q11: How many hours do you have to report a 24-hr reportable
NERC disturbance?
A: 6 hours
Q12: What report is generated during a Max Emergency Gen Alert?
A: SSR - Supplementary Status Report
Q13: What part of the SSR is the Fuel Limited Resources accounted
for?
A: Part G Resource Limited Units which are units that are not able to run at max capacity for
more than 72 hours.
Q14: What kind of Emergency Procedures occur during real time
operating hours?
A: Actions
Q15: What is the per Unit (p.u.) for a 345 kV nominal voltage that is
currently at 348 kV?
A: 348/345 = 1.008 pu
Q16: What is the Emergency Reducible Generation (ERG) if the Eco
Min is 100 and the Emergency Min is 75?
A: Eco Min - Emerg Min = 25MW
Q17: How many Black Start units are required for critical load/TO
zone?
A: 2 Black Start units
Q18: What is the minimum amount of hours for fuel supply for Black
Start units?
A: 10 hours, must notify PJM when it reaches that level.
Q19: Regulation must be attainable within how many minutes?
A: 5
Q20: ACE - Area Control Error is used to balance what 2 things?
A: Generation and Load
