PJM Generation Dispatcher Exam Practice Questions, Exams of Nursing

A set of practice questions and answers related to the pjm (pennsylvania-new jersey-maryland) generation dispatcher exam. It covers various aspects of power system operation, including voltage regulation, generator limits, synchronization, emergency procedures, and reactive power management. The questions address real-time operating scenarios, nerc disturbance reporting, and market operations within the pjm system. This resource is valuable for individuals preparing for the pjm generation dispatcher exam, offering insights into the practical knowledge required for grid operation and emergency response. It also touches on topics such as black start procedures, frequency control, and maintenance outages, providing a comprehensive overview of the dispatcher's responsibilities. Designed to test and reinforce understanding of critical concepts in power system management and grid stability, making it an essential study aid for aspiring dispatchers.

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2024/2025

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PJM Generation Dispatcher Exam Practice
Questions with correct answers
An |EXCITER |on |a |traditional |generator |does |what? |- |CORRECT |ANSWER✔✔-Voltage |regulation |
(AVR) |if |you |change |the |excitation |current, |you |change |the |voltage.
ECO |Min, |ECO |Max, |and |EMERG |Max |are |genrator |_________________. |- |CORRECT |
ANSWER✔✔-Limits
When |synchronizing |to |the |interconnection, |what |needs |to |be |synchronized? |- |CORRECT |
ANSWER✔✔-Frequency, |Voltage, |and |phase |angle.
GMD |(GeoMagnetic |Disturbance) |procedure |is |implemented |when? |- |CORRECT |ANSWER✔✔-
10A |or |greater |is |measured |by |special |equipment |at |Missouri |Ave |or |Meadowbrook |and |the |
measurement |is |confirmed |by |one |of |the |following |other |sources: |Excess |transformer |current |
@ |Meadowbrook, |Beddington, |Donbs, |or |Black |Oak, |high |MVAR |requirements |on |transformers
|@ |Hopw |Creek |or |Salem |nuclear |subs, |or |high |DC |measurements |@ |Limerick |or |Peach |
Bottom.
What |are |the |2 |types |of |National |Terrorism |Advisory |Alerts? |- |CORRECT |ANSWER✔✔-Elevated |
and |Imminent.
What |action |does |PJM |take |for |a |terrorist |attack, |fuel |delivery |emergency, |or |GMD's? |- |
CORRECT |ANSWER✔✔-Conservative |Operations
What |does |PJM |put |the |most |emphasis |on |during |a |terrorist/sabotage |event? |- |CORRECT |
ANSWER✔✔-Operations |and |Communications
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PJM Generation Dispatcher Exam Practice

Questions with correct answers

An |EXCITER |on |a |traditional |generator |does |what? |- |CORRECT |ANSWER✔✔-Voltage |regulation | (AVR) |if |you |change |the |excitation |current, |you |change |the |voltage. ECO |Min, |ECO |Max, |and |EMERG |Max |are |genrator |_________________. |- |CORRECT | ANSWER✔✔-Limits When |synchronizing |to |the |interconnection, |what |needs |to |be |synchronized? |- |CORRECT | ANSWER✔✔-Frequency, |Voltage, |and |phase |angle. GMD |(GeoMagnetic |Disturbance) |procedure |is |implemented |when? |- |CORRECT |ANSWER✔✔- 10A |or |greater |is |measured |by |special |equipment |at |Missouri |Ave |or |Meadowbrook |and |the | measurement |is |confirmed |by |one |of |the |following |other |sources: |Excess |transformer |current | @ |Meadowbrook, |Beddington, |Donbs, |or |Black |Oak, |high |MVAR |requirements |on |transformers |@ |Hopw |Creek |or |Salem |nuclear |subs, |or |high |DC |measurements |@ |Limerick |or |Peach | Bottom. What |are |the | 2 |types |of |National |Terrorism |Advisory |Alerts? |- |CORRECT |ANSWER✔✔-Elevated | and |Imminent. What |action |does |PJM |take |for |a |terrorist |attack, |fuel |delivery |emergency, |or |GMD's? |- | CORRECT |ANSWER✔✔-Conservative |Operations What |does |PJM |put |the |most |emphasis |on |during |a |terrorist/sabotage |event? |- |CORRECT | ANSWER✔✔-Operations |and |Communications

What |does |PJM |request |during |a |low |voltage |alert? |- |CORRECT |ANSWER✔✔-RRC |- |reactive | reserve |check PJM |issues |a |Heavy |Load |Voltage |Warning |how |many |hours |prior |to |implementation? |- | CORRECT |ANSWER✔✔-4 |hours What |should |generation |owners/operators |do |during |a |High |System |Voltage |Action? |- | CORRECT |ANSWER✔✔-Operate |at |the |lower |bandwidth |of |the |voltage |schedule. How |many |hours |do |you |have |to |report |a |24-hr |reportable |NERC |disturbance? |- |CORRECT | ANSWER✔✔-6 |hours What |report |is |generated |during |a |Max |Emergency |Gen |Alert? |- |CORRECT |ANSWER✔✔-SSR |- | Supplementary |Status |Report What |part |of |the |SSR |is |the |Fuel |Limited |Resources |accounted |for? |- |CORRECT |ANSWER✔✔- Part |G |Resource |Limited |Units |which |are |units |that |are |not |able |to |run |at |max |capacity |for | more |than | 72 |hours. What |kind |of |Emergency |Procedures |occur |during |real |time |operating |hours? |- |CORRECT | ANSWER✔✔-Actions What |is |the |per |Unit |(p.u.) |for |a | 345 |kV |nominal |voltage |that |is |currently |at | 348 |kV? |- | CORRECT |ANSWER✔✔-348/345 |= |1.008 |pu What |is |the |Emergency |Reducible |Generation |(ERG) |if |the |Eco |Min |is | 100 |and |the |Emergency | Min |is |75? |- |CORRECT |ANSWER✔✔-Eco |Min |- |Emerg |Min |= |25MW

What |size |generating |units |must |provide |instantaneous |power |and |reactive |flow |data? |- | CORRECT |ANSWER✔✔-10 |MW |and |above How |often |must |PJM |be |updated |for |manually |entered |data? |- |CORRECT |ANSWER✔✔-30 |min How |often |is |generator |reactive |capability |testing |required? |- |CORRECT |ANSWER✔✔-Every | 5 | yrs. How |much |notification |is |required |to |bring |a |self-scheduled |unit |online? |- |CORRECT | ANSWER✔✔-20 |min What |time |of |the |day |does |the |DA- |Day |ahead |market |close? |- |CORRECT |ANSWER✔✔-1200 | EST |and |all |bids |must |be |in |by |this |time. Eco |Min, |Eco |Max, |and |Emerg |max |are |all |generator |______________ |. |- |CORRECT | ANSWER✔✔-Limits What |time |is |the |rebidding |period |for |the |DA |market? |- |CORRECT |ANSWER✔✔-4 |- | 6 |pm Who |specifies |the |voltage/reactive |power |schedule? |- |CORRECT |ANSWER✔✔-TO |- | transmission |owner PJM |requires |generators |that |are |greater |than |what |level |to |follow |a |voltage |schedule? |- | CORRECT |ANSWER✔✔-20 |MVA |or |aggregated | 75 |MVA PJM |sends |what |signals |to |Market |Operation |Centers? |- |CORRECT |ANSWER✔✔-ACE, | Regulation, |and |Dispatch

PJM |instructs |your |Generator |to |come |online. |From |what |time |to |the |time |it |is |running? |- | CORRECT |ANSWER✔✔-Notification |time |+ |Time |to |start Operating |reserves |consists |of |what? |- |CORRECT |ANSWER✔✔-Synchronized |reserves, |non- synchronized |reserves |(quick |start), |and |supplemental |reserves |(secondary) Regulating |units |(demand |response |resources) |provide |a |variable |amount |of |generation |under | automatic |control |to |provide |what? |- |CORRECT |ANSWER✔✔-Correction |for |small |deviations |in |load. Where's |the |ideal |point |for |regulation |to |operate? |- |CORRECT |ANSWER✔✔-Midpoint What |type |of |outage |may |be |deferred |to |beyond |the |next |weekend |or |can |be |postponed |to | the |following |Mon |morning |at |0800? |- |CORRECT |ANSWER✔✔-Maintenance |outage How |long |is |a |maintenance |outage |during |PPM- |Peak |Period |Maintenance? |- |CORRECT | ANSWER✔✔-9 |days How |long |is |a |maintenance |outage |during |non-Peak |Period |Maintenance? |- |CORRECT | ANSWER✔✔-Unlimited When |ambient |temperatures |are |low, |what |happens |to |CT |operation? |- |CORRECT | ANSWER✔✔-MW |increased |as |temperature |decreases. What |is |the |maximum |amount |of |reactive |power |increments |put |onto |the |grid |during |a | reactive |power |capability |test |at |one |time? |- |CORRECT |ANSWER✔✔-100 |MVAR

During |restoration |what |is |the |frequency |control |range? |- |CORRECT |ANSWER✔✔-59.75 |- |61.0 | Hz What |permits |the |manual |closing |of |a |circuit |breaker |between | 2 |control |areas? |- |CORRECT | ANSWER✔✔-Synchroscope What |is |the |normal |frequency |control |mode |used |by |PJM? |- |CORRECT |ANSWER✔✔-Tie-line | bias A |unit |running |for |transmission |congestion |is |subject |to |what? |- |CORRECT |ANSWER✔✔-Price | cost |capping What |kind |of |transformers |are |used |to |measure |power |line |voltages? |- |CORRECT |ANSWER✔✔- Potential |Transformers What |is |the |lowest |voltage |in |the |BES? |- |CORRECT |ANSWER✔✔-100 |kV What |is |the |lowest |operating |voltage |in |PJM? |- |CORRECT |ANSWER✔✔-115 |kV What |side |of |the |transformer |is |connected |to |the |power |source? |- |CORRECT |ANSWER✔✔- Primary |winding If |a |generator |is |under |excited, |(-) |value, |absorbing |VAR's |is |it |leading |or |lagging? |- |CORRECT | ANSWER✔✔-Leading

PJM |calls |and |instructs |you |to |increase |MVAR |output |for |voltage |support |by | 50 |MVAR. |What | do |you |do? |- |CORRECT |ANSWER✔✔-Look |at |"D" |curve |and |decrease |your |MW |output |to |a | level |that |will |increase |reactive |power |output |by | 50 |MVAR. Planned |outages |are |submitted |no |later |than? |- |CORRECT |ANSWER✔✔-30 |days