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When is Manual Load Dump Warning issued? ✔Correct Answer-available primary reserve
capacity is less than the largest operating generator or the loss of a transmission facility
jeopardizes reliable operations after all other possible measures are taken to increase reserve
Why is a Voltage Reduction used? ✔Correct 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? ✔Correct 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? ✔Correct Answer-
57.5 Hz
When is Minimum Generation Alert issued? ✔Correct 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? ✔Correct 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?
✔Correct 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? ✔Correct Answer-90
degrees F or more
What locations does PJM monitor for Solar Magnetic Disturbances? How many amps
measurement is required? ✔Correct 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