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LATEST UPDATE | INCLUDES A STUDY GUIDE.
1. ABalancingAuthoritynoticesthatOperatingReservehassteadilydeclined
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throughout the hour.What is the most likely cause?
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a) Loss of a large generator in the area
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b) An inaccurate load forecast
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c) Loss of a major transmission line
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d) A malfunction of EMS
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Ans:b) An inaccurate load forecast
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2. BalancingAreaAnoticesthattheInterconnectionfrequencyis59.94Hzand their y
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ACE is 0.Which of the following could be the cause of this reading?
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a) A net under-generation in Balancing Area A
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b) A net under-generation in the Interconnection
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c) A loss of load in Balancing Area A
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d) A loss of load in the Interconnection
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Ans:b) A net under-generation in the Inter- connection
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o:https://www.stuvia.com/user/Wisdoms
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, 3. What is the penaltyfora BalancingAuthority violatingtheDisturbance
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Control Standard?
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a) Must carry additional Contingency Reservegy gy gy gy
b) Must develop a correction action plan gy gy gy gy gy
c) Must re-evaluate and change its Frequency Bias Setting
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d) Must increase its Regulating Reserve gy gy gy gy
Ans:a) Must carry additional Contingency Reserve
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4. YourACEisalargenegativevalueandsystemfrequencyis59.80Hz.Your AGC
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system is pulsing your units down.What should you do?
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a) Place AGC in flat frequency control gy gy gy gy gy
b) Place AGC in flat tie line control gy gy gy gy gy gy
c) SuspendAGC and investigate gy gy gy
d) Do nothing as this is normal
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Ans:c) Suspend AGC and investigate
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5. When two identical generating units are operated in parallel on governor
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control,and on machine has a 5% droop and the other has a 10% droop,the unit
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with the greater (10%) governor droop will:
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a) Respond less to frequency deviations gy gy gy gy
b) Respond more to frequency deviations gy gy gy gy
c) Respond the same to frequency deviations gy gy gy gy gy
d) Not adjust for frequency changes
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Ans:a) Respond less to frequency deviations
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o:https://www.stuvia.com/user/Wisdoms
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