PJM Generation Dispatcher UPDATED
Exam Questions and CORRECT Answers
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
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 Answer- Generation
and Load
If your ACE in your control area is -1500, what would you do? - Correct Answer- 100%
spinning (synchronized) reserves
Exam Questions and CORRECT Answers
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
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 Answer- Generation
and Load
If your ACE in your control area is -1500, what would you do? - Correct Answer- 100%
spinning (synchronized) reserves
