PJM PRACTICE TEST Q'S 3 QUESTIONS
AND ANSWERS.
During,system,restoration,,,what,is,the,optimal,frequency,range,?,,ANS,-59.75Hz,-,61.00Hz
Generation,is,disconnected,after,5,seconds,when,the,frequency,drops,to,,ANS,-57.5Hz
Dumping,approximately,_________,of,load,will,increase,frequency,by,1,Hz,,ANS,-6-10%
The,voltage,range,for,system,restoration,should,be,between,________,%,and,______,%,,ANS,-
90,%,and,105,%
PJM,will,coordinate,and,direct,all,restoration,of,the,_____,transmission,system,,ANS,-500,kV
Under,system,restoration,,,the,operator,should,keep,cap,banks,off,until,___,of,load,is,restored,,ANS,-
40%
PJM,Assumes,Frequency,Control,when,the,control,of,an,interconnected,area,is,too,burdensome,for,any,
one,Local,Control,Center:,True,or,False,,ANS,-True
When,synchronizing,two,voltages,the,operator,must,match,______,,_______,,and,______,,ANS,-
Hz,,,Volts,,phase,angle
What,is,the,normal,voltage,range,for,a,500kV,line,?,,ANS,-500-550kV
Line,charging,for,a,500kv,line,is,____,MVAR,per,mile,,ANS,-1.7
What,is,the,Surge,Impedance,Loading,(,SIL,),of,a,500kv,line,?,,ANS,-850,MW
, For,generation,you,need,_____,MW,of,electrically,close,generation,connected,____,kV,of,higher,,ANS,-
600.,230
Under,generation,,,electrically,close,is,defined,as,less,than,____,_____kV,miles,,ANS,-50,230
A,minimum,of,30,MW,of,generation,is,needed,per,mile,of,energized,_____,kV,line,,ANS,-500
Under,generation,500kV,Minimum,Source,Requirements,,,it,must,provide,adequate,short,circuit,current
,for,fault,clearing,True,or,False,,ANS,-True
Part,of,the,minimum,source,requirements,for,500kV,load,is,that,it,must,provide,a,minimum,of,___,MW,
of,load,per,mile,of,energized,_____,kV,line,,ANS,-20.,500
When,considering,SMD,(,Solar,Magnetic,Disturbances,),a,DC,measurement,of,10,amps,or,greater,must,b
e,seen,at,either,Missouri,avenue,in,Atlantic,City,and,/,or,Meadow,Brook,Station,near,Winchester,Virgini
a,.,It,must,also,be,________________,such,as,excess,transformer,neutral,current,at,Meadow,Brook,Bedi
ngton,,,Doubs,and,or,Black,Oak,/,Excess,MVAR,requirements,at,Salem,/,Hope,Creek,/,High,DC,measure
ments,at,Limerick,or,Peach,Bottom,,ANS,-confirmed,by,one,additional,source
What,is,the,Ferranti,Effect,?,,ANS,-
An,increase,in,voltage,occurring,at,the,receiving,end,of,a,long,transmission,line,,,above,the,voltage,at,th
e,sending,end,.,This,occurs,when,the,line,is,energized,,,but,there,is,a,very,light,load,or,the,load,is,discon
nected
For,a,generator's,VAR,reserves,,,VARS,out,ability,is,the,_________,Reserve,,,and,VARS,in,is,________,Re
serve,.,(,Total,VAR,reserve,=,Lagging,ability,-,VARS,out,OR,+,VARS,in,),,ANS,-Lagging.,Leading
What,is,one,of,the,actions,an,operator,must,take,when,a,thunderstorm,is,approaching,for,the,500kV,sys
tem,?,,ANS,-Verify,that,auto,reclosing,is,on,for,the,500kv,system
For,time,corrections,what,frequencies,are,used,?,,ANS,-60.02,&,59.98
If,PJM,interchange,is,increasing,into,PJM,what,is,happening,to,ACE,?,,ANS,-Increasing
AND ANSWERS.
During,system,restoration,,,what,is,the,optimal,frequency,range,?,,ANS,-59.75Hz,-,61.00Hz
Generation,is,disconnected,after,5,seconds,when,the,frequency,drops,to,,ANS,-57.5Hz
Dumping,approximately,_________,of,load,will,increase,frequency,by,1,Hz,,ANS,-6-10%
The,voltage,range,for,system,restoration,should,be,between,________,%,and,______,%,,ANS,-
90,%,and,105,%
PJM,will,coordinate,and,direct,all,restoration,of,the,_____,transmission,system,,ANS,-500,kV
Under,system,restoration,,,the,operator,should,keep,cap,banks,off,until,___,of,load,is,restored,,ANS,-
40%
PJM,Assumes,Frequency,Control,when,the,control,of,an,interconnected,area,is,too,burdensome,for,any,
one,Local,Control,Center:,True,or,False,,ANS,-True
When,synchronizing,two,voltages,the,operator,must,match,______,,_______,,and,______,,ANS,-
Hz,,,Volts,,phase,angle
What,is,the,normal,voltage,range,for,a,500kV,line,?,,ANS,-500-550kV
Line,charging,for,a,500kv,line,is,____,MVAR,per,mile,,ANS,-1.7
What,is,the,Surge,Impedance,Loading,(,SIL,),of,a,500kv,line,?,,ANS,-850,MW
, For,generation,you,need,_____,MW,of,electrically,close,generation,connected,____,kV,of,higher,,ANS,-
600.,230
Under,generation,,,electrically,close,is,defined,as,less,than,____,_____kV,miles,,ANS,-50,230
A,minimum,of,30,MW,of,generation,is,needed,per,mile,of,energized,_____,kV,line,,ANS,-500
Under,generation,500kV,Minimum,Source,Requirements,,,it,must,provide,adequate,short,circuit,current
,for,fault,clearing,True,or,False,,ANS,-True
Part,of,the,minimum,source,requirements,for,500kV,load,is,that,it,must,provide,a,minimum,of,___,MW,
of,load,per,mile,of,energized,_____,kV,line,,ANS,-20.,500
When,considering,SMD,(,Solar,Magnetic,Disturbances,),a,DC,measurement,of,10,amps,or,greater,must,b
e,seen,at,either,Missouri,avenue,in,Atlantic,City,and,/,or,Meadow,Brook,Station,near,Winchester,Virgini
a,.,It,must,also,be,________________,such,as,excess,transformer,neutral,current,at,Meadow,Brook,Bedi
ngton,,,Doubs,and,or,Black,Oak,/,Excess,MVAR,requirements,at,Salem,/,Hope,Creek,/,High,DC,measure
ments,at,Limerick,or,Peach,Bottom,,ANS,-confirmed,by,one,additional,source
What,is,the,Ferranti,Effect,?,,ANS,-
An,increase,in,voltage,occurring,at,the,receiving,end,of,a,long,transmission,line,,,above,the,voltage,at,th
e,sending,end,.,This,occurs,when,the,line,is,energized,,,but,there,is,a,very,light,load,or,the,load,is,discon
nected
For,a,generator's,VAR,reserves,,,VARS,out,ability,is,the,_________,Reserve,,,and,VARS,in,is,________,Re
serve,.,(,Total,VAR,reserve,=,Lagging,ability,-,VARS,out,OR,+,VARS,in,),,ANS,-Lagging.,Leading
What,is,one,of,the,actions,an,operator,must,take,when,a,thunderstorm,is,approaching,for,the,500kV,sys
tem,?,,ANS,-Verify,that,auto,reclosing,is,on,for,the,500kv,system
For,time,corrections,what,frequencies,are,used,?,,ANS,-60.02,&,59.98
If,PJM,interchange,is,increasing,into,PJM,what,is,happening,to,ACE,?,,ANS,-Increasing
