SOS NERC PREP -
m m m
mRELIABILITY EXAM LATEST 2024 ACTUAL EXAM 200 QUE
m m m m m m m
STIONS AND CORRECT DETAILED ANSWERS (VERIFIED A
m m m m m m
NSWERS) |ALREADY GRADED A+
m m m
The mReliabilitymCoordinatormjustminformedmyoumofmamslowmtimemerrormcorrectionmwhichmwillmbeginmatmth
e mtopmofmthe mnextmhour.mYourmEMSmsystemmwillmnotmletmyoumchangemyourmscheduledmfrequency.mYourmF
requencymBiasmSettingmism-100mMW/.1Hz.mWhatmactionmshouldmyoumtake?
A) Increase mNetmInterchange mSchedule mbym20mMWs.
B) Informmthe mReliabilitymCoordinatormthatmyoumcannotmparticipate minmthe mtime merrormcorrection.
C) Decrease mNetmInterchange mSchedule mbym20mMWs.
D) Increase mNetmInterchange mSchedule mbym10mMWs.m-manswer-
A) mIncrease mNetmInterchange mSchedule mbym20mMWs.
AmBalancingmAuthoritymhasmamsuddenmlossmofmamlarge mblockmofmloadminmitsmarea.mThismlossmwillmbemseenmi
nstantaneously minmthe mchange mofmwhichmofmthe mfollowingmvalues?
1. ActualmNetmInterchange
2. ScheduledmFrequency
3. ScheduledmNetmInterchange
4. AreamControlmError
A) 4monly
B) 1m&m3
C) 1m&m4
D) 3m&m4m-manswer-C) m1m&m4
MeteredmDatamincludedminmthe mcalculationmof mACEmare:mdynamicmschedules,mpseudomties,mactualmfrequ
ency,mandmallm .
A) Tie mlinesmreadings
B) Generatorsmoutput
C) Scheduledmfrequencymindications
D) Transformermloadm-manswer-A) mTie mlinesmreadings
,BalancingmAuthoritymAmismcurrentlymreadingmamsystemmfrequencymofm60.00mHz.mItsmNetmActualmInterchange mis
+100mMWmandmitsmNetmScheduledmInterchange mism+200mMW.mIfmBalancingmAuthoritymA'smfrequencymbias
m settingm ism 100m MW/0.1m Hz, m whatm ism ACE?
A) -100
B) 0
C) 10
D) 100m-manswer-A) m-100
AmBalancingmAuthoritymhasmamNetmInterchange mSchedule mofm-
250mMWsmfromm1200mtom1600monmamsummermday.mThemNetmInterchange mActualmformthose msame mhoursm
respectivelymwere m-230mMW,m-275mMW,m-250mMWmandm-
270mMW.mWhatmwasmthe mBalancingmAuthority'smInadvertentmInterchange mformthe m4-hourmperiod?
A) 6mMWsmout
B) 25mMWsmin
C) 25mMWsmout
D) 6mMWsminm-manswer-B)m25mMWsmin
Formthe mACEmequationmtomworkmproperly,mdynamicmschedules, mpseudomties,mfrequency,mandmall
mustmbe mmetered.
A) Generation
B) Communications
C) Transformers
D) Tie mlinesm-manswer-D)mTie mlines
Ifmthe mfrequencymbiasmsettingmismsetmtomamlessmnegative mvaluemthanmthe mfrequencymresponsemofmamBalanc
ingmAuthoritymandmamfrequencymincrease mismcausedmbymamsuddenmlossmofmloadminmanmexternalmbalancingm
area,mwhatmwillmbe mthe mresult?
A) The mACEmwillmbe mzeromandmwillmtake mnomAGCmaction
B) The mACEmwillmbe mamnegative mvalue mandmAGCmwillmincrease mgeneration
C) The mACEmwillmbe mampositive mvalue mandmAGCmwillmlowermgeneration
D) Thismwillmnotmaffectmthe mACEm-manswer-
B) mThe mACEmwillmbe mamnegative mvalue mandmAGCmwillmincrease mgeneration
,Ifmthe mfrequencymbiasmsettingmismlessmnegativemthanmthemfrequencymresponsemofmamBalancingmAuthoritym
andmamfrequencymdecline mismcausedmbymamsuddenmlossmofmgenerationminmanmexternalmbalancingmarea,mw
hatmwillmbe mthe mresult?
A) The mACEmwillmbe mamnegative mvalue mandmAGCmwillmincrease mgeneration.
B) Thismwillmnotmaffectmthe mACE.
C) The mACEmwillmbe mampositive mvalue mandmAGCmwillmlowermgeneration.
D) The mACEmwillmbe mzeromandmwillmtake mnomAGCmaction.m-manswer-
C) mThe mACEmwillmbe mampositive mvalue mandmAGCmwillmlowermgeneration.
Itmismthemresponsibilitymofmwhichmentity/entitiesmtomdevelop,mmaintain,mandmimplementmloadmsheddingmplans?
A) TransmissionmOperatorsmandmBalancingmAuthorities
B) ReliabilitymCoordinator
C) LoadmServingmEntities
D) BalancingmAuthoritym-manswer-A) mTransmissionmOperatorsmandmBalancingmAuthorities
AmTransmissionmline mismloadedm25%mabovemitsmSOL.mAmparallelmline mismoutmformroutine mmaintenance mand
m canm be m placedminm servicem inm10m minutes. mWhatmismthem firstm stepm them Operatorm should mtakemtomreduce
m the m line m loading?
A) Shedm loadm atm the m downstreamm bus.
B) Openm the m line.
C) Re-Dispatchm Generation.
D) Initiate m the m restorationmof m the m parallelm line.m - m answer-D) m Initiate m the m restorationmof m the m parallelm line.
AsmamTransmissionmOperator,myoumrealize mthatmthemvoltagemlevelmismstartingmtomdecline minmthe mNorthmW
estmpartmofmthemsystem.mWhichmofmthemfollowingmdevicesmshouldmyou,masmamTransmissionmOperator,mbem
able mtomoperate,mand/ormhave manothermentitymoperatemtomraise mthemvoltagemlevelmbackmtomnormalminmth
e mNorthmWestmpartmof mthe msystem?
A) TransformermUnderloadmTapmChangers
B) ShuntmCapacitormBanks
C) GeneratormReactive mOutput
D) Allmanswersmare mcorrectm-manswer-D) mAllmanswersmare mcorrect
, Voltage mreductionmformloadmrelief mshouldmbe mmade monmthe m .
A) Distributionmsystem
B) Entire mInterconnectionmsimultaneously
C) Tie-linesmwithmothermBalancingmAuthoritymAreas
D) TransmissionmSystemm-manswer-A) mDistributionmsystem
UndermFrequencymLoadmSheddingm(UFLS)mismtomstabilize mthemimbalance mbetweenmgenerationmandmload
m thatm hasm been m created m by m am systemm disturbance. m Thism ism accomplished m by m .
A) Trippingmgenerationmfirst
B) Voltage mreductionmonmthe mdistributionmsystem.
C) Sheddingmallmloadmtomarrestmfrequency
D) Sheddingmloadmpriormtomgenerationmtrippingm-manswer-D) mSheddingmloadmpriormtomgenerationmtripping
Failure mtommeetmthemDCSmcriteriamof mrecoverymwithinm15mminutesmresultsminmwhichmconsequence mformams
pecifiedmtime mperiodmformthe mBalancingmAuthority'smfailure mtomrecover?
A) IncreasedmContingencymReserve mrequirements
B) DecertificationmasmamBalancingmAuthority
C) Notmallowedmtomsupplymregulationmservices
D) Expulsionmfrommthe mReservemSharingmGroupm-manswer-A)mIncreasedmContingencymReserve mrequirements
AmBalancingmAuthoritymforeseesmormismexperiencingmconditionsmwheremallmavailable mresourcesmaremcommi
ttedmtommeetmfirmmload,mandmfirmmtransactions.mThe mBAmshouldmrequestmwhichmlevelmof mthemEnergymEme
rgencymAlerts?
A) EnergymEmergencymAlertmLevelm2
B) EnergymEmergencymAlertmLevelm4
C) EnergymEmergencymAlertmLevelm1
D) EnergymEmergencymAlertmLevelm3m-manswer-C) mEnergymEmergencymAlertmLevelm1
Preparationsmare mbeingmmademtomtie mtwomislandsmtogethermduringmrestoration.mIslandm"A"mhasmamfrequencymo
f
58.95mHzmandmIslandm"B"mhasmamfrequencymofm59.97mHz.mWhatmactionmshouldmbemtakenmtomsynchronizemt
he mtwomislands?
m m m
mRELIABILITY EXAM LATEST 2024 ACTUAL EXAM 200 QUE
m m m m m m m
STIONS AND CORRECT DETAILED ANSWERS (VERIFIED A
m m m m m m
NSWERS) |ALREADY GRADED A+
m m m
The mReliabilitymCoordinatormjustminformedmyoumofmamslowmtimemerrormcorrectionmwhichmwillmbeginmatmth
e mtopmofmthe mnextmhour.mYourmEMSmsystemmwillmnotmletmyoumchangemyourmscheduledmfrequency.mYourmF
requencymBiasmSettingmism-100mMW/.1Hz.mWhatmactionmshouldmyoumtake?
A) Increase mNetmInterchange mSchedule mbym20mMWs.
B) Informmthe mReliabilitymCoordinatormthatmyoumcannotmparticipate minmthe mtime merrormcorrection.
C) Decrease mNetmInterchange mSchedule mbym20mMWs.
D) Increase mNetmInterchange mSchedule mbym10mMWs.m-manswer-
A) mIncrease mNetmInterchange mSchedule mbym20mMWs.
AmBalancingmAuthoritymhasmamsuddenmlossmofmamlarge mblockmofmloadminmitsmarea.mThismlossmwillmbemseenmi
nstantaneously minmthe mchange mofmwhichmofmthe mfollowingmvalues?
1. ActualmNetmInterchange
2. ScheduledmFrequency
3. ScheduledmNetmInterchange
4. AreamControlmError
A) 4monly
B) 1m&m3
C) 1m&m4
D) 3m&m4m-manswer-C) m1m&m4
MeteredmDatamincludedminmthe mcalculationmof mACEmare:mdynamicmschedules,mpseudomties,mactualmfrequ
ency,mandmallm .
A) Tie mlinesmreadings
B) Generatorsmoutput
C) Scheduledmfrequencymindications
D) Transformermloadm-manswer-A) mTie mlinesmreadings
,BalancingmAuthoritymAmismcurrentlymreadingmamsystemmfrequencymofm60.00mHz.mItsmNetmActualmInterchange mis
+100mMWmandmitsmNetmScheduledmInterchange mism+200mMW.mIfmBalancingmAuthoritymA'smfrequencymbias
m settingm ism 100m MW/0.1m Hz, m whatm ism ACE?
A) -100
B) 0
C) 10
D) 100m-manswer-A) m-100
AmBalancingmAuthoritymhasmamNetmInterchange mSchedule mofm-
250mMWsmfromm1200mtom1600monmamsummermday.mThemNetmInterchange mActualmformthose msame mhoursm
respectivelymwere m-230mMW,m-275mMW,m-250mMWmandm-
270mMW.mWhatmwasmthe mBalancingmAuthority'smInadvertentmInterchange mformthe m4-hourmperiod?
A) 6mMWsmout
B) 25mMWsmin
C) 25mMWsmout
D) 6mMWsminm-manswer-B)m25mMWsmin
Formthe mACEmequationmtomworkmproperly,mdynamicmschedules, mpseudomties,mfrequency,mandmall
mustmbe mmetered.
A) Generation
B) Communications
C) Transformers
D) Tie mlinesm-manswer-D)mTie mlines
Ifmthe mfrequencymbiasmsettingmismsetmtomamlessmnegative mvaluemthanmthe mfrequencymresponsemofmamBalanc
ingmAuthoritymandmamfrequencymincrease mismcausedmbymamsuddenmlossmofmloadminmanmexternalmbalancingm
area,mwhatmwillmbe mthe mresult?
A) The mACEmwillmbe mzeromandmwillmtake mnomAGCmaction
B) The mACEmwillmbe mamnegative mvalue mandmAGCmwillmincrease mgeneration
C) The mACEmwillmbe mampositive mvalue mandmAGCmwillmlowermgeneration
D) Thismwillmnotmaffectmthe mACEm-manswer-
B) mThe mACEmwillmbe mamnegative mvalue mandmAGCmwillmincrease mgeneration
,Ifmthe mfrequencymbiasmsettingmismlessmnegativemthanmthemfrequencymresponsemofmamBalancingmAuthoritym
andmamfrequencymdecline mismcausedmbymamsuddenmlossmofmgenerationminmanmexternalmbalancingmarea,mw
hatmwillmbe mthe mresult?
A) The mACEmwillmbe mamnegative mvalue mandmAGCmwillmincrease mgeneration.
B) Thismwillmnotmaffectmthe mACE.
C) The mACEmwillmbe mampositive mvalue mandmAGCmwillmlowermgeneration.
D) The mACEmwillmbe mzeromandmwillmtake mnomAGCmaction.m-manswer-
C) mThe mACEmwillmbe mampositive mvalue mandmAGCmwillmlowermgeneration.
Itmismthemresponsibilitymofmwhichmentity/entitiesmtomdevelop,mmaintain,mandmimplementmloadmsheddingmplans?
A) TransmissionmOperatorsmandmBalancingmAuthorities
B) ReliabilitymCoordinator
C) LoadmServingmEntities
D) BalancingmAuthoritym-manswer-A) mTransmissionmOperatorsmandmBalancingmAuthorities
AmTransmissionmline mismloadedm25%mabovemitsmSOL.mAmparallelmline mismoutmformroutine mmaintenance mand
m canm be m placedminm servicem inm10m minutes. mWhatmismthem firstm stepm them Operatorm should mtakemtomreduce
m the m line m loading?
A) Shedm loadm atm the m downstreamm bus.
B) Openm the m line.
C) Re-Dispatchm Generation.
D) Initiate m the m restorationmof m the m parallelm line.m - m answer-D) m Initiate m the m restorationmof m the m parallelm line.
AsmamTransmissionmOperator,myoumrealize mthatmthemvoltagemlevelmismstartingmtomdecline minmthe mNorthmW
estmpartmofmthemsystem.mWhichmofmthemfollowingmdevicesmshouldmyou,masmamTransmissionmOperator,mbem
able mtomoperate,mand/ormhave manothermentitymoperatemtomraise mthemvoltagemlevelmbackmtomnormalminmth
e mNorthmWestmpartmof mthe msystem?
A) TransformermUnderloadmTapmChangers
B) ShuntmCapacitormBanks
C) GeneratormReactive mOutput
D) Allmanswersmare mcorrectm-manswer-D) mAllmanswersmare mcorrect
, Voltage mreductionmformloadmrelief mshouldmbe mmade monmthe m .
A) Distributionmsystem
B) Entire mInterconnectionmsimultaneously
C) Tie-linesmwithmothermBalancingmAuthoritymAreas
D) TransmissionmSystemm-manswer-A) mDistributionmsystem
UndermFrequencymLoadmSheddingm(UFLS)mismtomstabilize mthemimbalance mbetweenmgenerationmandmload
m thatm hasm been m created m by m am systemm disturbance. m Thism ism accomplished m by m .
A) Trippingmgenerationmfirst
B) Voltage mreductionmonmthe mdistributionmsystem.
C) Sheddingmallmloadmtomarrestmfrequency
D) Sheddingmloadmpriormtomgenerationmtrippingm-manswer-D) mSheddingmloadmpriormtomgenerationmtripping
Failure mtommeetmthemDCSmcriteriamof mrecoverymwithinm15mminutesmresultsminmwhichmconsequence mformams
pecifiedmtime mperiodmformthe mBalancingmAuthority'smfailure mtomrecover?
A) IncreasedmContingencymReserve mrequirements
B) DecertificationmasmamBalancingmAuthority
C) Notmallowedmtomsupplymregulationmservices
D) Expulsionmfrommthe mReservemSharingmGroupm-manswer-A)mIncreasedmContingencymReserve mrequirements
AmBalancingmAuthoritymforeseesmormismexperiencingmconditionsmwheremallmavailable mresourcesmaremcommi
ttedmtommeetmfirmmload,mandmfirmmtransactions.mThe mBAmshouldmrequestmwhichmlevelmof mthemEnergymEme
rgencymAlerts?
A) EnergymEmergencymAlertmLevelm2
B) EnergymEmergencymAlertmLevelm4
C) EnergymEmergencymAlertmLevelm1
D) EnergymEmergencymAlertmLevelm3m-manswer-C) mEnergymEmergencymAlertmLevelm1
Preparationsmare mbeingmmademtomtie mtwomislandsmtogethermduringmrestoration.mIslandm"A"mhasmamfrequencymo
f
58.95mHzmandmIslandm"B"mhasmamfrequencymofm59.97mHz.mWhatmactionmshouldmbemtakenmtomsynchronizemt
he mtwomislands?
