180+ CORRECT QUESTIONS AND ANSWERS
GOOD GRADE GUARANTEED GRADE A+
LATEST 2024 – 2025/ SOS NERC
RELIABILITY EXAM REAL EXAM
,When coordinating under frequency load shedding and under
frequency generator tripping the _____________________________.
A) generators should trip before the UFLS
B) load should not be shed during the process
C) generators should trip after the UFLS
D) breakers should open at the same time as the UFLS -ANSWERS- C)
generators should trip after the UFLS
A Balancing Authority has a sudden loss of a large block of load in its
area. This loss will be seen instantaneously in the change of which of
the following values?
1. Actual Net Interchange
2. Scheduled Frequency
3. Scheduled Net Interchange
4. Area Control Error
A) 4 only
B) 1 & 3
C) 1 & 4
D) 3 & 4 -ANSWERS- C) 1 & 4
,Metered Data included in the calculation of ACE are: dynamic
schedules, pseudo ties, actual frequency, and all __________.
A) Tie lines readings
B) Generators output
C) Scheduled frequency indications
D) Transformer load -ANSWERS- A) Tie lines readings
Balancing Authority A is currently reading a system frequency of 60.00
Hz. Its Net Actual Interchange is +100 MW and its Net Scheduled
Interchange is +200 MW. If Balancing Authority A's frequency bias
setting is 100 MW/0.1 Hz, what is ACE?
A) -100
B) 0
C) 10
D) 100 -ANSWERS- A) -100
A Balancing Authority has a Net Interchange Schedule of -250 MWs
from 1200 to 1600 on a summer day. The Net Interchange Actual for
those same hours respectively were -230 MW, -275 MW, -250 MW and
-270 MW. What was the Balancing Authority's Inadvertent Interchange
for the 4-hour period?
, A) 6 MWs out
B) 25 MWs in
C) 25 MWs out
D) 6 MWs in -ANSWERS- B) 25 MWs in
The Reliability Coordinator just informed you of a slow time error
correction which will begin at the top of the next hour. Your EMS
system will not let you change your scheduled frequency. Your
Frequency Bias Setting is -100 MW/.1Hz. What action should you take?
A) Increase Net Interchange Schedule by 20 MWs.
B) Inform the Reliability Coordinator that you cannot participate in the
time error correction.
C) Decrease Net Interchange Schedule by 20 MWs.
D) Increase Net Interchange Schedule by 10 MWs. -ANSWERS- A)
Increase Net Interchange Schedule by 20 MWs.