PJM Generation Dispatch Exam Flash Cards Questions & Answers 2024
Which of the following statements is correct concerning PJM assuming frequency control of the restoration process?
A) PJM assumes control once an external transmission tie has been established.
B) Once an Area Control Error ...
Which of the following statements is correct concerning PJM assuming frequency control of the
restoration process?
A) PJM assumes control once an external transmission tie has been established.
B) Once an Area Control Error can be calculated, PJM will assume control.
C) Whenever it becomes too much of a burden for any one Transmission Owner within the RTO
D) Whenever the Transmission Owners within the RTO agree to let PJM control the process. - ANSWER-C)
Whenever it becomes too much of a burden for any one Transmission Owner within the RTO
During black start restoration, priority access to cranking power should be given to:
A) Hot units that can return to service immediately.
B) Combustion turbines in areas where the initial disturbance occurred
C)Units with black start capability
D) Hydro Units - ANSWER-A) Hot units that can return to service immediately.
During a restoration, if you are presented with the opportunity to re-connect with the Eastern
Interconnection, you should:
A)Not pursue this opportunity because you may cause the Eastern Interconnection to become unstable.
B) Pursue this opportunity only when you have adequate Dynamic Reserves on your system
C) Pursue this opportunity as quickly as possible
D) Pursue this opportunity only if you need cranking power for your generating unity - ANSWER-C)
Pursue this opportunity as quickly as possible
Complete (Total System) Blackouts are characterized by which of the following?
,1 - Most common type of blackout
2 - May require coordinating multiple islands
3 - Likely to result in Transmission overloads or other issues
4 - Affects a very large geographical area, and many customers
5 - Most commonly caused by human or switching errors
A) 1 & 3
B) 2 & 4
C) 3 & 5
D) 1 - ANSWER-B) 2 & 4
The first step in a system restoration would be to:
A) Immediately notify the media of the event
B) Restore as much of the area load as possible
C) Restore as much under-frequency load as possible
D) Verify that communication is functional with your neighbors - ANSWER-D) Verify that communication
is functional with your neighbors
Why would an offsite power to generating facilities be a priority during the restoration process?
A) To provide safe shutdown power for the units
B) To meet FERC requirements
C) To provide adequate lighting for the plant operators to attempt a restart
D) To prepare and expedite the return of the unit - ANSWER-D) To prepare and expedite the return of the
unit
Factors that help determine the sequence of restoration of off-line generation include (Pick 2):
,-Generation Type
-Unloaded Capacity
-Unit Availability
-Stability of the Generator - ANSWER--Generation Type
-Unit Availability
How often should a Transmission company file an updated restoration report with PJM?
1 - Every 30 minutes
2 - Every hour
3 - Every 10 lines that have been restored
4 - Every 5 lines that have been restored
A) 1 & 4
B) 2 & 3
C) 1 & 3
D) 2 & 4 - ANSWER-C) 1 & 3
Which of the following statements are true concerning delays in restoring auxiliary power to off-line
generation?
1 - The unit could suffer turbine shaft damage
2 - The fuel oil for the unit could congeal
3 - The startup time for the unit will be reduced
4 - The battery life used to maintain critical systems may run out
A) 1, 2 and 3
B) 1, 2 and 4
, C) 1, 3 and 4
D) 2, 3 and 4 - ANSWER-B) 1, 2 and 4
During system restoration, the two categories of reserves are:
A) dynamic and secondary
B) spinning and quick start
C) dynamic and spinning
D) spinning and primary - ANSWER-C) dynamic and spinning
During a system restoration you have 400MW of Steam capacity, 350MW of CT capacity and 300MW of
Hydro capacity restored. Your largest contingency is a 200MW Steam Unit. You have also restored
150MW of under-frequency load. What is your total dynamic reserve? (Load pick-up factors are 5% for
steam, 15% for hydro and 25% for CT)
A) 142.5MW
B) 152.5MW
C) 285MW
D) 292.5MW - ANSWER-C) 285MW
What is the most critical communication path when restoring large load blocks early in a system
restoration?
A) Between the Generating Unit and the Transmission Owner
B) Between PJM and the generating plant
C) Between the Generator Owner (or MOC) and the generating unit
D) Between the transmission owner and the MOC - ANSWER-A) Between the Generating Unit and the
Transmission Owner
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