PJM Generation Dispatcher Exam
Practice Question and answers 100%
correct 2025/2026
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 answer
✔Elevated 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
answer ✔SSR - 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
Practice Question and answers 100%
correct 2025/2026
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 answer
✔Elevated 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
answer ✔SSR - 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
