PJM TEST REVIEW QUESTIONS
Real time transmission constraints or contingencies may be alleviated with generators
operating ______________ - Answers - off cost out of merit.
Monitoring ___________ may give insights into system constraints. - Answers -
Monitoring LMP's
PJM calls for _____________ reserves to recover ace so that tie line schedules are
maintained. - Answers - PJM calls on synchronized reserves
If not cancelled by PJM, the minimum generation alert expires at the end of the
specified ______________. - Answers - light load period
When PJM declares a hot weather alert, the generation dispatcher should determine if
maintenance can be deferred and notify all generating stations and key personnel. -
Answers -
During system restoration, the two categories of reserves are dynamic and spinning. -
Answers -
During system restoration, frequency should be maintained between 59.75 and 61.00
Hertz. - Answers -
PJM issues a heavy load voltage schedule. Member companies who own generation
facilities should ensure voltage regulators on generating units are in service &
automatic. - Answers -
A unit being dispatched economically by PJM should set its megawatt output based on
the unit's dispatch rate or desired megawatt level. - Answers -
A fossil steam unit is considered fuel limited when it is not capable of running at its
maximum capacity for the next 72 hours - Answers -
During system restoration prior to synchronization of a unit, the dispatcher should
ensure sufficient load is available to stabilize unit operation. - Answers -
A large unit in an external control area near PJM/PJM West trips. The PJM operator will
see ace remain the same, frequency decrease. - Answers -
LMPs will change when marginal generator output changes - Answers -
The two control signals sent by the PJM E M S are regulation and dispatch rate (desired
MW output). - Answers -
, An all-call is the one-way communication system used to disseminate information to
market operation centers. - Answers -
Real time bus prices may be monitored using data viewer. - Answers -
Not offering an available PJM capacity resource into the day ahead market is a violation
of PJMs two settlement market rules. - Answers -
A unit that fails to start when scheduled, would be classified as an unplanned outage. -
Answers -
Maximum Generation Emergency is declared by PJM when generation is required
above the highest incremental economic cost. - Answers -
Maintenance outages are permitted when a unit can be held online until the following
Monday, and system reliability is not affected - Answers -
If PJM ace shows over-generation, actual imports are less than scheduled. - Answers -
PJM will request a Supplementary Status Report when a Maximum Generation
Emergency Alert is issued. - Answers -
If a fossil steam unit has less than 32 hours of fuel at maximum capacity, it should be
bid at maximum emergency. - Answers -
The loss of a large generation unit on the PJM system can be detected by monitoring
frequency and PJM ace. - Answers -
A 1000 megawatt unit has tripped in the PJM control area and the PJM ace now
indicates under-generation of 1050 Megawatt. PJM should request 100% synchronized
reserves be loaded. - Answers -
Alerts are issued in advance of a scheduled load period to allow sufficient time for the
generation dispatcher to prepare for the anticipated capacity shortages - Answers -
The amount of synchronized reserves must be large enough to cover the loss of the
largest single energy contingency. - Answers -
When preparing a supplementary status report (SSR), a steam unit that has 30 hours of
fuel remaining. This unit should be reported as a resource limited unit. - Answers -
PJM responds to capacity shortages by issuing alerts in advance of a scheduled load
period to allow sufficient time for members to prepare for anticipated initial capacity
shortages. - Answers -
Real time transmission constraints or contingencies may be alleviated with generators
operating ______________ - Answers - off cost out of merit.
Monitoring ___________ may give insights into system constraints. - Answers -
Monitoring LMP's
PJM calls for _____________ reserves to recover ace so that tie line schedules are
maintained. - Answers - PJM calls on synchronized reserves
If not cancelled by PJM, the minimum generation alert expires at the end of the
specified ______________. - Answers - light load period
When PJM declares a hot weather alert, the generation dispatcher should determine if
maintenance can be deferred and notify all generating stations and key personnel. -
Answers -
During system restoration, the two categories of reserves are dynamic and spinning. -
Answers -
During system restoration, frequency should be maintained between 59.75 and 61.00
Hertz. - Answers -
PJM issues a heavy load voltage schedule. Member companies who own generation
facilities should ensure voltage regulators on generating units are in service &
automatic. - Answers -
A unit being dispatched economically by PJM should set its megawatt output based on
the unit's dispatch rate or desired megawatt level. - Answers -
A fossil steam unit is considered fuel limited when it is not capable of running at its
maximum capacity for the next 72 hours - Answers -
During system restoration prior to synchronization of a unit, the dispatcher should
ensure sufficient load is available to stabilize unit operation. - Answers -
A large unit in an external control area near PJM/PJM West trips. The PJM operator will
see ace remain the same, frequency decrease. - Answers -
LMPs will change when marginal generator output changes - Answers -
The two control signals sent by the PJM E M S are regulation and dispatch rate (desired
MW output). - Answers -
, An all-call is the one-way communication system used to disseminate information to
market operation centers. - Answers -
Real time bus prices may be monitored using data viewer. - Answers -
Not offering an available PJM capacity resource into the day ahead market is a violation
of PJMs two settlement market rules. - Answers -
A unit that fails to start when scheduled, would be classified as an unplanned outage. -
Answers -
Maximum Generation Emergency is declared by PJM when generation is required
above the highest incremental economic cost. - Answers -
Maintenance outages are permitted when a unit can be held online until the following
Monday, and system reliability is not affected - Answers -
If PJM ace shows over-generation, actual imports are less than scheduled. - Answers -
PJM will request a Supplementary Status Report when a Maximum Generation
Emergency Alert is issued. - Answers -
If a fossil steam unit has less than 32 hours of fuel at maximum capacity, it should be
bid at maximum emergency. - Answers -
The loss of a large generation unit on the PJM system can be detected by monitoring
frequency and PJM ace. - Answers -
A 1000 megawatt unit has tripped in the PJM control area and the PJM ace now
indicates under-generation of 1050 Megawatt. PJM should request 100% synchronized
reserves be loaded. - Answers -
Alerts are issued in advance of a scheduled load period to allow sufficient time for the
generation dispatcher to prepare for the anticipated capacity shortages - Answers -
The amount of synchronized reserves must be large enough to cover the loss of the
largest single energy contingency. - Answers -
When preparing a supplementary status report (SSR), a steam unit that has 30 hours of
fuel remaining. This unit should be reported as a resource limited unit. - Answers -
PJM responds to capacity shortages by issuing alerts in advance of a scheduled load
period to allow sufficient time for members to prepare for anticipated initial capacity
shortages. - Answers -
