NERC EXAM 2025 100% SOLUTIONS RATED TO PASS.
ACE equation - ANSWER (NIA-NIS)-10B(fa-fs)-IME
Net Interchange Scheduled (NIS) - ANSWER sum of all interchange schedules
Net Interchange Schedule (NIS) - ANSWER sum of all interchange schedules
multiplier for frequency bias is _______ - ANSWER 10
frequency bias (B) - ANSWER represented as a negative number in ACE
Calculation and reflects area natural response to frequency changes (Inertia,
governor & load). Is at least 1% of peak load for areas with native load & 1% if peak
generation output of area with no load.
If unable to calculate ACE for ________ contact the RC. - ANSWER 30 mins
what happens when you have internal generation lost? - ANSWER Frequency and
ACE drop and tie-line flows increase into your system
what happens with external generation lost? - ANSWER Frequency Drop with no
change in ACE and net ti-line flows increase out of your system.
Internal loss of load - ANSWER Frequency and ACE increase
External loss of load - ANSWER Frequency increases with no change in ACE
Frequency Actual (fa) - ANSWER
Frequency Schedule (fs) - ANSWER normally 60HZ except for time corrections +/-
.02HZ
Flat Frequency (Constant Frequency) is used when - ANSWER tie-line data is
unavailable/ islanded situations
Flat Tie-Line (Constant Frequency) is used when - ANSWER frequency data is
unavailable - restoration
Net Interchange Actual (NIA) - ANSWER sum of all tie-line values
Net Interchange Actual (NIA) - ANSWER sum of all tie-line values
Multiplier for frequency Bias - ANSWER 10
Tie-Line Bias (Tie-Line Frequency Bias) is used - ANSWER for both tie-line and
frequency data and used at all times unless detrimental to operation of system.
Under what EEA is all available resources in service and concern with maintaining
reserves. Requiring actions to attempt to boost supply, bring In generation, reduce
non-firm exports and purchase interchange? - ANSWER EEA 1
ACE equation - ANSWER (NIA-NIS)-10B(fa-fs)-IME
Net Interchange Scheduled (NIS) - ANSWER sum of all interchange schedules
Net Interchange Schedule (NIS) - ANSWER sum of all interchange schedules
multiplier for frequency bias is _______ - ANSWER 10
frequency bias (B) - ANSWER represented as a negative number in ACE
Calculation and reflects area natural response to frequency changes (Inertia,
governor & load). Is at least 1% of peak load for areas with native load & 1% if peak
generation output of area with no load.
If unable to calculate ACE for ________ contact the RC. - ANSWER 30 mins
what happens when you have internal generation lost? - ANSWER Frequency and
ACE drop and tie-line flows increase into your system
what happens with external generation lost? - ANSWER Frequency Drop with no
change in ACE and net ti-line flows increase out of your system.
Internal loss of load - ANSWER Frequency and ACE increase
External loss of load - ANSWER Frequency increases with no change in ACE
Frequency Actual (fa) - ANSWER
Frequency Schedule (fs) - ANSWER normally 60HZ except for time corrections +/-
.02HZ
Flat Frequency (Constant Frequency) is used when - ANSWER tie-line data is
unavailable/ islanded situations
Flat Tie-Line (Constant Frequency) is used when - ANSWER frequency data is
unavailable - restoration
Net Interchange Actual (NIA) - ANSWER sum of all tie-line values
Net Interchange Actual (NIA) - ANSWER sum of all tie-line values
Multiplier for frequency Bias - ANSWER 10
Tie-Line Bias (Tie-Line Frequency Bias) is used - ANSWER for both tie-line and
frequency data and used at all times unless detrimental to operation of system.
Under what EEA is all available resources in service and concern with maintaining
reserves. Requiring actions to attempt to boost supply, bring In generation, reduce
non-firm exports and purchase interchange? - ANSWER EEA 1
