PJM GENERATION DISPATCHER
EXAM PRACTICE 2025 QUESTIONS
AND ANSWERS
An EXCITER on a traditional generator does what? - ....ANSWER ...-Voltage
regulation (AVR) if you change the excitation current, you change the voltage.
ECO Min, ECO Max, and EMERG Max are genrator _________________. -
....ANSWER ...-Limits
When synchronizing to the interconnection, what needs to be synchronized? -
....ANSWER ...-Frequency, Voltage, and phase angle.
GMD (GeoMagnetic Disturbance) procedure is implemented when? -
....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? - ....ANSWER ...-
Elevated and Imminent.
What action does PJM take for a terrorist attack, fuel delivery emergency, or GMD's? -
....ANSWER ...-Conservative Operations
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 1
, What does PJM put the most emphasis on during a terrorist/sabotage event? -
....ANSWER ...-Operations and Communications
What does PJM request during a low voltage alert? - ....ANSWER ...-RRC - reactive
reserve check
PJM issues a Heavy Load Voltage Warning how many hours prior to implementation? -
....ANSWER ...-4 hours
What should generation owners/operators do during a High System Voltage Action? -
....ANSWER ...-Operate at the lower bandwidth of the voltage schedule.
How many hours do you have to report a 24-hr reportable NERC disturbance? -
....ANSWER ...-6 hours
What report is generated during a Max Emergency Gen Alert? - ....ANSWER ...-
SSR - Supplementary Status Report
What part of the SSR is the Fuel Limited Resources accounted for? -
....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? -
....ANSWER ...-Actions
What is the per Unit (p.u.) for a 345 kV nominal voltage that is currently at 348 kV? -
....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? - ....ANSWER ...-Eco Min - Emerg Min = 25MW
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 2
EXAM PRACTICE 2025 QUESTIONS
AND ANSWERS
An EXCITER on a traditional generator does what? - ....ANSWER ...-Voltage
regulation (AVR) if you change the excitation current, you change the voltage.
ECO Min, ECO Max, and EMERG Max are genrator _________________. -
....ANSWER ...-Limits
When synchronizing to the interconnection, what needs to be synchronized? -
....ANSWER ...-Frequency, Voltage, and phase angle.
GMD (GeoMagnetic Disturbance) procedure is implemented when? -
....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? - ....ANSWER ...-
Elevated and Imminent.
What action does PJM take for a terrorist attack, fuel delivery emergency, or GMD's? -
....ANSWER ...-Conservative Operations
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 1
, What does PJM put the most emphasis on during a terrorist/sabotage event? -
....ANSWER ...-Operations and Communications
What does PJM request during a low voltage alert? - ....ANSWER ...-RRC - reactive
reserve check
PJM issues a Heavy Load Voltage Warning how many hours prior to implementation? -
....ANSWER ...-4 hours
What should generation owners/operators do during a High System Voltage Action? -
....ANSWER ...-Operate at the lower bandwidth of the voltage schedule.
How many hours do you have to report a 24-hr reportable NERC disturbance? -
....ANSWER ...-6 hours
What report is generated during a Max Emergency Gen Alert? - ....ANSWER ...-
SSR - Supplementary Status Report
What part of the SSR is the Fuel Limited Resources accounted for? -
....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? -
....ANSWER ...-Actions
What is the per Unit (p.u.) for a 345 kV nominal voltage that is currently at 348 kV? -
....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? - ....ANSWER ...-Eco Min - Emerg Min = 25MW
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 2
