PJM Study guides, Class notes & Summaries

Which of the following balancing control modes is used by PJM under normal operations? : Tie-Line Bias Which of the following influences does PJM consider when performing their system load forecast? : Weather Conditions & Day of the Week All of the following are limits that must be submitted to PJM for generating units EXCEPT: 1. Eco Min 2. Eco Max 3. Emergency Max 4. Dynamic Instability : Dynamic Instability 2 | P a g e If PJM experienced an event that caused the loss of a 1,00...

During System Restoration, what is the optimal Frequency Range? : 59.75 - 61 Hz The 500 kV system has normal bus voltages between? : 500 to 550 kV When Connecting 2 islands, the operator must match? : Voltage, Phase Angle and Frequency What are the Minimum Source Requirements for a 500kV line? (Gen/mile and load/mile) : 30 MW Gen/mile of energized 500 kV and 20 MW Load/mile of energized 500 kV When will PJM issue a Minimum Generation Alert? (how many MW under normal operating limits)...

Unit Startup Notification Alert : Place generating units into a state of readiness (able to be brought online with 48 hours); when a reliability assessment determines long lead time generation is needed for a future period; roughly 6 days prior to day needed Maximum Generation/Load Management Alert : Issued 1 or more days prior to operating day in question; to provide early alert that system conditions may require Maximum Generation Emergency (forecasted operating reserve requirement ...

During reactive testing, which entity must give approval to change an approved voltage schedule? PJM, TOP, MOC, GO : TO Generation available within 10 minutes for offline reserve units: Quick-start (hydro), manual, operating, supplemental : Quick-start (hydro) Minimum MVARs for an individual generator that is required to do reactive testing? : 20 MVA Minimum MVARs for an aggregate of generators that is required to do reactive testing? : 75 MVA Power transformer is connected to the g...

What is the threshold for having a satellite phone? : 500 MW How often is reactive testing completed? : 5 years Which of the following would NOT be a cause for a sudden deviation in the balancing area ACE? 1) Incorrect interchange number 2) Loss of a tie-line RTU 3) Loss of internal load 4) Loss of adjacent control area generation : Loss of adjacent control area generation PJM should be made aware of any fuel shortage that a generator may experience. This information assists in ana...

Real time transmission constraints or contingencies may be alleviated with generators operating________. A. below 60 Hz. B. on a new price curve. C. on a new cost curve. D. off cost (out of merit). : off cost (out of merit) What is the minimum size for a solar park to be required to have real and reactive power telemetry? A. 1 MW. B. 3 MW C. 5 MW D. 7 MW : 3 MW PJM calls for which of the following to recover the ACE so that tie line schedules are maintained? A. instantaneous reserve...

Control center facilities must have a minimum of how many days of fuel for the backup generator? : 5 days If PJM ACE shows overgeneration, actual imports are: : Less than scheduled Who should a generator contact at PJM to clear an outage ticket? : Master Coordinator To correct for a slow or fast clock, system frequency schedules are offset by: : +/-.02 Hz What frequency would PJM set to correct for fast-time error? : 59.98Hz 2 | P a g e What frequency would PJM set to correct for sl...

Real time transmission constraints or contingencies may be alleviated with generators operating ______________ : off cost out of merit. Monitoring ___________ may give insights into system constraints. : Monitoring LMP's PJM calls for _____________ reserves to recover ace so that tie line schedules are maintained. : PJM calls on synchronized reserves If not cancelled by PJM, the minimum generation alert expires at the end of the specified ______________. : light load period 2 | P ...

A Heavy Load Voltage Schedule Warning is typically issued ___ prior to actual implementation. : c. 4 hours The following would be considered non-critical plant load (Select 2) : A. Office Area Air Conditioners C. Lighting During a Cold Weather Alert, PJM will take which of the actions : D. Assume an unavailability rate for schedule generation When PJM issues a High System Voltage Message, the GO should have its units operate at: : B. The lower end of their voltage bandwidth What wou...

Actions in low voltage alert? : Review transmission & generation outages Request reactive reserve check Heavy load voltage schedule warning purpose is to have members prepare far max support of voltages on the? : Bulk Power System Manual load dump warning & reduction of Non-critical plant load issued when? : Primary reserve is less the the largest generating unit. Loss of transmission facility jeopardize reliability after all possible measures have been taken to increase reserves Hot...