PJM TRANSMISSION LATEST 2026 STUDY GUIDE
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔When should, transmission outages should be submitted to PJM to avoid
cancellation and to be considered "on time?' - ✔✔First day of Month Prior to the Outage
✔✔What report will be requested by PJM when a Max Generation Alert is issued? -
✔✔Supplementary Status Report (SSR)
✔✔The loss of a large generation unit on the PJM system can be detected by
monitoring: - ✔✔Frequency and PJM Area Control Error (ACE)
✔✔The PJM system is operated such that the contingency flow is less than the: -
✔✔Emergency Rating
✔✔When ordered a 5% voltage reduction should be taken on: - ✔✔The Distribution
System
✔✔TOs are required to report "Hot Line Work" on what voltage levels? - ✔✔345 kV and
Above
✔✔Load dump rating of an EHV line is determined by? - ✔✔115% of the facility's 4 hour
Emergency Rating
✔✔During System Restoration, will closing additional tie lines increase the strength &
stability of an interconnected area? - ✔✔Yes
✔✔Which of the following factors influence load forecast (3)?
1) Weather
2) Temperature
3) Reactive Reserves
4) Day of the week - ✔✔1, 2, 4
✔✔During system restoration, what is the voltage range the system should be kept
between? - ✔✔90% and 105% maintain voltage profile between for system restoration
✔✔PJM will coordinate and direct all restoration lines of what voltage levels? -
✔✔500kV and above
✔✔How much load would you dump to increase the frequency by 1 Hz (percentage
range)? - ✔✔6-10%
,✔✔Generation is disconnected after 5 seconds, when the frequency: - ✔✔Drops below
57.5Hz
✔✔How much of the total Dynamic Reserve should be used on Under Frequency relay
load? - ✔✔
✔✔During System Restoration, capacitor banks should be kept off until how much of
the load is restored? - ✔✔40%
✔✔Would PJM assume Frequency Control when the control of an interconnected area
is too burdensome for any Local Control Center? - ✔✔Yes
✔✔Operator receiving an All-Call message should state the following before playback of
the message? - ✔✔Name and Company
✔✔Dynamic Reserves consist of: - ✔✔Governor Reserve and Load that has been
restored with under frequency relays
✔✔What would be the appropriate response to receiving a DC ground Alarm? -
✔✔Advise substation personnel of the alarm during normal hours
✔✔An islanded system has a load of 3000 MW. To increase frequency by 1 Hz, how
much load should be shed? - ✔✔180 MW
✔✔Which of the following actions would be used FIRST to control a reactive transfer
limit violation?
a) Place reactors in service
b) Load offcost (out of merit) generation
c) Issue load dump warning
d) Modify firm transaction schedules - ✔✔B
✔✔When available primary reserve capacity on a system is less than the largest
operating generator, or the loss of a transmission facility jeopardizes reliable operations,
PJM should issue a:
a) Manual load dump warning
b) Maximum emergency generation
c) Voltage reduction warning
d) Primary reserve alert - ✔✔A
✔✔Increased load on a circuit causes lower voltage at the remote end. Which of the
following will increase this voltage?
, a) Switch off the distribution circuit capacitors
b) Raise the generation supply at the remote end
c) Raise the stepdown transformer tap position
d) Switch additional load to this circuit - ✔✔C
✔✔When synchronizing isolated areas, which of the following conditions must be met (3
choices to pick)?
1. Similar frequency
2. Similar voltage
3. Matching load
4. Minimum phase angle difference - ✔✔1, 2, and 4 only
✔✔A real time security analysis contingency or actual overload is
a) Immediately reported to NERC
b) Reported to operations planning
c) Bad data
d) Immediately communicated to the PJM transmission dispatcher - ✔✔D
✔✔A 1000 MW generating unit is located in an area with three transmission lines
carrying power from the generation source to the customer load. Each line has an
emergency limit of 400 MW. The maximum pre-contingency load that the generator
should be allowed to load is:
a) 200 MW
b) 600 MW
c) 800 MW
d) 1000 MW - ✔✔C
✔✔Distribution factors are used to determine:
a) The distribution of voltage levels on key lines
b) The surge impedance loading of lines
c) The impact of placing capacitor banks in or out of service
d) How the flow of MW on a line will be redistributed upon its loss - ✔✔D
✔✔PJM has issued a heavy load voltage schedule. Which of the following is NOT an
appropriate PJM member action in response to this alert?
a) Ensure that all unit voltage regulators are in service
b) Ensure that all unit voltage regulators are in manual mode
c) Ensure that all reactors are out of service and available capacitors are in service
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔When should, transmission outages should be submitted to PJM to avoid
cancellation and to be considered "on time?' - ✔✔First day of Month Prior to the Outage
✔✔What report will be requested by PJM when a Max Generation Alert is issued? -
✔✔Supplementary Status Report (SSR)
✔✔The loss of a large generation unit on the PJM system can be detected by
monitoring: - ✔✔Frequency and PJM Area Control Error (ACE)
✔✔The PJM system is operated such that the contingency flow is less than the: -
✔✔Emergency Rating
✔✔When ordered a 5% voltage reduction should be taken on: - ✔✔The Distribution
System
✔✔TOs are required to report "Hot Line Work" on what voltage levels? - ✔✔345 kV and
Above
✔✔Load dump rating of an EHV line is determined by? - ✔✔115% of the facility's 4 hour
Emergency Rating
✔✔During System Restoration, will closing additional tie lines increase the strength &
stability of an interconnected area? - ✔✔Yes
✔✔Which of the following factors influence load forecast (3)?
1) Weather
2) Temperature
3) Reactive Reserves
4) Day of the week - ✔✔1, 2, 4
✔✔During system restoration, what is the voltage range the system should be kept
between? - ✔✔90% and 105% maintain voltage profile between for system restoration
✔✔PJM will coordinate and direct all restoration lines of what voltage levels? -
✔✔500kV and above
✔✔How much load would you dump to increase the frequency by 1 Hz (percentage
range)? - ✔✔6-10%
,✔✔Generation is disconnected after 5 seconds, when the frequency: - ✔✔Drops below
57.5Hz
✔✔How much of the total Dynamic Reserve should be used on Under Frequency relay
load? - ✔✔
✔✔During System Restoration, capacitor banks should be kept off until how much of
the load is restored? - ✔✔40%
✔✔Would PJM assume Frequency Control when the control of an interconnected area
is too burdensome for any Local Control Center? - ✔✔Yes
✔✔Operator receiving an All-Call message should state the following before playback of
the message? - ✔✔Name and Company
✔✔Dynamic Reserves consist of: - ✔✔Governor Reserve and Load that has been
restored with under frequency relays
✔✔What would be the appropriate response to receiving a DC ground Alarm? -
✔✔Advise substation personnel of the alarm during normal hours
✔✔An islanded system has a load of 3000 MW. To increase frequency by 1 Hz, how
much load should be shed? - ✔✔180 MW
✔✔Which of the following actions would be used FIRST to control a reactive transfer
limit violation?
a) Place reactors in service
b) Load offcost (out of merit) generation
c) Issue load dump warning
d) Modify firm transaction schedules - ✔✔B
✔✔When available primary reserve capacity on a system is less than the largest
operating generator, or the loss of a transmission facility jeopardizes reliable operations,
PJM should issue a:
a) Manual load dump warning
b) Maximum emergency generation
c) Voltage reduction warning
d) Primary reserve alert - ✔✔A
✔✔Increased load on a circuit causes lower voltage at the remote end. Which of the
following will increase this voltage?
, a) Switch off the distribution circuit capacitors
b) Raise the generation supply at the remote end
c) Raise the stepdown transformer tap position
d) Switch additional load to this circuit - ✔✔C
✔✔When synchronizing isolated areas, which of the following conditions must be met (3
choices to pick)?
1. Similar frequency
2. Similar voltage
3. Matching load
4. Minimum phase angle difference - ✔✔1, 2, and 4 only
✔✔A real time security analysis contingency or actual overload is
a) Immediately reported to NERC
b) Reported to operations planning
c) Bad data
d) Immediately communicated to the PJM transmission dispatcher - ✔✔D
✔✔A 1000 MW generating unit is located in an area with three transmission lines
carrying power from the generation source to the customer load. Each line has an
emergency limit of 400 MW. The maximum pre-contingency load that the generator
should be allowed to load is:
a) 200 MW
b) 600 MW
c) 800 MW
d) 1000 MW - ✔✔C
✔✔Distribution factors are used to determine:
a) The distribution of voltage levels on key lines
b) The surge impedance loading of lines
c) The impact of placing capacitor banks in or out of service
d) How the flow of MW on a line will be redistributed upon its loss - ✔✔D
✔✔PJM has issued a heavy load voltage schedule. Which of the following is NOT an
appropriate PJM member action in response to this alert?
a) Ensure that all unit voltage regulators are in service
b) Ensure that all unit voltage regulators are in manual mode
c) Ensure that all reactors are out of service and available capacitors are in service
