PJM TRANSMISSION ACTUAL EXAM SCRIPT
2026 COMPLETE QUESTIONS AND
SOLUTIONS
● Why is a Voltage Reduction used? Answer: PJM dispatcher issues the
order for a 5% voltage reduction on the DISTRIBUTION system. Used
to increase transmission system voltages by lowering the distribution
system voltages
● When is Primary Reserve Warning issued? Answer: The purpose of
the Primary Reserve Warning is to warn members that the available
primary reserve is less than required and present operations are
becoming critical. It is implemented when available primary reserve
capacity is less than the primary reserve requirement, but greater than
the synchronized reserve requirement.
● At what Frequency (Hz) do generators trip offline due to under
frequency? Answer: 57.5 Hz
● When is Minimum Generation Alert issued? Answer: Minimum
Generation Alert is implemented when the expected generation level is
within 2,500 MW of normal minimum energy limits.
, ● Under normal conditions, when is a generator considered Fuel Limited
Generation? How many hours of run time left? Answer: Generally, any
fuel or resource restricted unit (< 72 burn hours at max capacity, see
Section
6 of this manual) should be classified as Fuel Limited Generation.
● What category should Furl Limited Resources be placed in during a
Cold or Hot Weather Alert? Answer: Units bid to the PJM Market when
Conservative Operations/Cold or Hot Weather Alert have been declared
and PJM Dispatch requests Fuel Limited Resources be placed into the
Maximum Emergency Generation Category.
● At what projected temperature will PJM issue a Hot Weather Alert?
Answer: 90 degrees F or more
● What locations does PJM monitor for Solar Magnetic Disturbances?
How many amps measurement is required? Answer: Solar Magnetic
Disturbances
geomagnetic storm is detected that produces a DC measurement at
Missouri Avenue in Atlantic City and/or Meadow Brook Station near
Winchester, Virginia at a magnitude greater than 10 amps and PJM
dispatcher confirms that this measurement is a result of a severe
geomagnetic storm by checking additional sources of information.
2026 COMPLETE QUESTIONS AND
SOLUTIONS
● Why is a Voltage Reduction used? Answer: PJM dispatcher issues the
order for a 5% voltage reduction on the DISTRIBUTION system. Used
to increase transmission system voltages by lowering the distribution
system voltages
● When is Primary Reserve Warning issued? Answer: The purpose of
the Primary Reserve Warning is to warn members that the available
primary reserve is less than required and present operations are
becoming critical. It is implemented when available primary reserve
capacity is less than the primary reserve requirement, but greater than
the synchronized reserve requirement.
● At what Frequency (Hz) do generators trip offline due to under
frequency? Answer: 57.5 Hz
● When is Minimum Generation Alert issued? Answer: Minimum
Generation Alert is implemented when the expected generation level is
within 2,500 MW of normal minimum energy limits.
, ● Under normal conditions, when is a generator considered Fuel Limited
Generation? How many hours of run time left? Answer: Generally, any
fuel or resource restricted unit (< 72 burn hours at max capacity, see
Section
6 of this manual) should be classified as Fuel Limited Generation.
● What category should Furl Limited Resources be placed in during a
Cold or Hot Weather Alert? Answer: Units bid to the PJM Market when
Conservative Operations/Cold or Hot Weather Alert have been declared
and PJM Dispatch requests Fuel Limited Resources be placed into the
Maximum Emergency Generation Category.
● At what projected temperature will PJM issue a Hot Weather Alert?
Answer: 90 degrees F or more
● What locations does PJM monitor for Solar Magnetic Disturbances?
How many amps measurement is required? Answer: Solar Magnetic
Disturbances
geomagnetic storm is detected that produces a DC measurement at
Missouri Avenue in Atlantic City and/or Meadow Brook Station near
Winchester, Virginia at a magnitude greater than 10 amps and PJM
dispatcher confirms that this measurement is a result of a severe
geomagnetic storm by checking additional sources of information.
