PJM Generation Dispatcher Exam
Questions and Answers||A+ Solution
guide(Verified)
Real time transmission constraints may be alleviated with generators operating -
Answer- Off Cost (out of merit)
What is the minimum size for a solar park to be required to have a real and reactive
power telemetry? - Answer- 3MW
PJM calls for which of the following to recover ACE so that tie line schedules are
maintained? - Answer- Synchronized Reserves
The minimum generation alert expires when? - Answer- It's cancelled by PJM
When PJM declares a hot weather alert, the generation dispatcher should. - Answer-
Determine if maintenance can be deferred
During system restoration, the two categories of reserves are - Answer- Dynamic and
Synchronous
During system restoration, frequency should be maintained between - Answer- 59.75
and 61.00Hz
PJM issues a heavy load voltage schedule. Member companies who own generation
should: - Answer- Ensure voltage regulators on generating units are in service on
automatic
A unit being dispatched economically be PJM should set its MW output based on the -
Answer- Unit's dispatch rate or desired MW level
What hourly revenue data is required if a generator by PJM? - Answer- Compensated
MWh delivered by each unit
During system restoration prior to synchronization of a unit, the dispatcher should
ensure sufficient load is available to - Answer- Stabilize unit operation
A non-Zero ACE indicates: - Answer- An imbalance of generation and load
During certain emergency conditions, a Capacity Performance generation resource that
fails to generate the required amount of energy may be charged: - Answer- A non-
performance assessment charge
, Control center facilities must have a minimum of how many days of fuel for the backup
generator? - Answer- 3 days
Which of the following one-way communication system is used to disseminate
information to market operation centers? - Answer- All call
Real time bus prices may be monitored using A. Data Viewer. B. eDART. C.
InSchedule. D. Markets Gateway. - Answer- Data Viewer
Which action is a violation of PJM two settlement market rules? - Answer- Not offering
an available PJM capacity resource into the day ahead market
A unit fails to start when scheduled, would be classified as which of the following types
of outage? - Answer- Unplanned
A forecasted planned outage starts a minimum of how many days into the future? -
Answer- 31 days
Maintenance outages are permitted when - Answer- A unit can be held online until the
following Monday, and system reliability is not affected
If PJM ACE shows overgeneration, actual imports are - Answer- Less than scheduled
Who should a generator contact at PJM to clear an outage ticket? - Answer- Master
Coordinator
Which page in Markets Gateway is used to reflect real-time changes to unit status and
output? - Answer- Unit Hourly Updates
The loss of a large generation unit on the PJM system can be detected by monitoring
what: - Answer- Frequency and PJM area control error.
A 1000MW unit has tripped in the PJM control area and the the PJM ACE now indicates
undergeneration of 1050MW. What immediate action should be taken by PJM to
recover the ACE? - Answer- Request 100% synchronized reserves be loaded
Which of the following emergency procedures are issued in advance of a scheduled
load period to allow sufficient time for the generation dispatcher to prepare for the
anticipated capacity shortages? - Answer- Alerts
The amount of synchronized reserves must be large enough to cover the loss of -
Answer- The largest single contingency
PJM responds to capacity shortages by issuing alerts - Answer- In advance of a
scheduled load period to allow sufficient time for members to prepare for anticipated
initial capacity shortages.
Questions and Answers||A+ Solution
guide(Verified)
Real time transmission constraints may be alleviated with generators operating -
Answer- Off Cost (out of merit)
What is the minimum size for a solar park to be required to have a real and reactive
power telemetry? - Answer- 3MW
PJM calls for which of the following to recover ACE so that tie line schedules are
maintained? - Answer- Synchronized Reserves
The minimum generation alert expires when? - Answer- It's cancelled by PJM
When PJM declares a hot weather alert, the generation dispatcher should. - Answer-
Determine if maintenance can be deferred
During system restoration, the two categories of reserves are - Answer- Dynamic and
Synchronous
During system restoration, frequency should be maintained between - Answer- 59.75
and 61.00Hz
PJM issues a heavy load voltage schedule. Member companies who own generation
should: - Answer- Ensure voltage regulators on generating units are in service on
automatic
A unit being dispatched economically be PJM should set its MW output based on the -
Answer- Unit's dispatch rate or desired MW level
What hourly revenue data is required if a generator by PJM? - Answer- Compensated
MWh delivered by each unit
During system restoration prior to synchronization of a unit, the dispatcher should
ensure sufficient load is available to - Answer- Stabilize unit operation
A non-Zero ACE indicates: - Answer- An imbalance of generation and load
During certain emergency conditions, a Capacity Performance generation resource that
fails to generate the required amount of energy may be charged: - Answer- A non-
performance assessment charge
, Control center facilities must have a minimum of how many days of fuel for the backup
generator? - Answer- 3 days
Which of the following one-way communication system is used to disseminate
information to market operation centers? - Answer- All call
Real time bus prices may be monitored using A. Data Viewer. B. eDART. C.
InSchedule. D. Markets Gateway. - Answer- Data Viewer
Which action is a violation of PJM two settlement market rules? - Answer- Not offering
an available PJM capacity resource into the day ahead market
A unit fails to start when scheduled, would be classified as which of the following types
of outage? - Answer- Unplanned
A forecasted planned outage starts a minimum of how many days into the future? -
Answer- 31 days
Maintenance outages are permitted when - Answer- A unit can be held online until the
following Monday, and system reliability is not affected
If PJM ACE shows overgeneration, actual imports are - Answer- Less than scheduled
Who should a generator contact at PJM to clear an outage ticket? - Answer- Master
Coordinator
Which page in Markets Gateway is used to reflect real-time changes to unit status and
output? - Answer- Unit Hourly Updates
The loss of a large generation unit on the PJM system can be detected by monitoring
what: - Answer- Frequency and PJM area control error.
A 1000MW unit has tripped in the PJM control area and the the PJM ACE now indicates
undergeneration of 1050MW. What immediate action should be taken by PJM to
recover the ACE? - Answer- Request 100% synchronized reserves be loaded
Which of the following emergency procedures are issued in advance of a scheduled
load period to allow sufficient time for the generation dispatcher to prepare for the
anticipated capacity shortages? - Answer- Alerts
The amount of synchronized reserves must be large enough to cover the loss of -
Answer- The largest single contingency
PJM responds to capacity shortages by issuing alerts - Answer- In advance of a
scheduled load period to allow sufficient time for members to prepare for anticipated
initial capacity shortages.
