Page 1 of 244
HSI FINAL EXAM/NERC TEST 1-8 | {LATEST
2026/ 2027 UPDATE} COMPLETE ACTUAL AND
AUTHENTIC EXAM | BRAND NEW!
During a system emergency, the System Operator can direct other
Transmission Operators and Balancing Authorities to violate which
limit?
a. Available Transfer Capacity
b. None. Equipment parameters should be maintained within their
established limits
c. Interconnection Reliability Operating Limit
d. System Operating Limit
b. None. Equipment parameters should be maintained within their
established limits
Feedback: Throughout the NERC Standards, requirements state that
System Operating Limits must be respected. To ensure a reliable
power system, established limits cannot be violated
intentionally.Application
,Page 2 of 244
A conductor is rated for 180 MVA. The current transformer at one end
is rated at 160 MVA, and the bus is rated at 200 MVA. What is the
MVA limit for this transmission line?
a. 180 MVA
b. 160 MVA
c. 200 MVA
d. 100 MVA
b. 160 MVA
Feedback:
(NERC TOP-001) Each Transmission Operator shall operate to the most
limiting parameter in instances where there is a difference in SOLs.
When coordinating under frequency load shedding and under
frequency generator tripping the _____________________________.
a. breakers should open at the same time as the UFLS
b. generators should trip after the UFLS
c. load should not be shed during the process
d. generators should trip before the UFLS
,Page 3 of 244
b. generators should trip after the UFLS
Feedback: EOP-011, Emergency Operations - The Transmission
Operator and the Balancing Authority shall have Operating Plans with
provisions for operator-controlled manual Load shedding that
minimizes implemented in a timeframe adequate for mitigating the
Emergency. Under frequency load shedding, or UFLS, is designed to
drop load to match generation. Under frequency generator relays are
designed to protect generators from operating at low frequencies for
an extended period. These generator relays should be set to trip to
protect the generators if UFLS is unable to return the frequency to an
acceptable value within a set period of time. The first trip of under
frequency generator relays should be AFTER the last trip of UFLS
relays.
After a major disturbance, Interconnection frequency is remaining
around 59.92Hz, your Balancing Authority's ACE is 0 and you have 200
MW of extra generation. What should the Balancing Authority system
operator do?
a. Offer assistance to entities needing it
b. Change the AGC mode to Flat Frequency
c. Shed Load
d. Increase Generation
, Page 4 of 244
a. Offer assistance to entities needing it
Feedback: After a disturbance where frequency declines significantly,
the entire Interconnection will react (automatically) with governors
increasing generation and load decreasing slightly. Load and
Generation will rebalance at a lower frequency until generation is
increased to return the Interconnection frequency to 60.00 Hz. The
best answer is to offer assistance to the deficient Balancing Authority
by offering the 200 MW of reserves in a bilateral interchange
transaction to help restore generation and load balance in the
Interconnection.
In a capacity deficiency situation, which actions should be considered
if time permits prior to Firm Load Shed?
a. Request the RC declare a NERC EEA Level 3
b. Ensure all available resources in use
c. Implement local Load Management Procedures
d. All the Above
d. All the Above
Feedback: In an Energy Deficient situation, the Energy Deficient Entity
is making use of all available resources, Non-firm energy sales
HSI FINAL EXAM/NERC TEST 1-8 | {LATEST
2026/ 2027 UPDATE} COMPLETE ACTUAL AND
AUTHENTIC EXAM | BRAND NEW!
During a system emergency, the System Operator can direct other
Transmission Operators and Balancing Authorities to violate which
limit?
a. Available Transfer Capacity
b. None. Equipment parameters should be maintained within their
established limits
c. Interconnection Reliability Operating Limit
d. System Operating Limit
b. None. Equipment parameters should be maintained within their
established limits
Feedback: Throughout the NERC Standards, requirements state that
System Operating Limits must be respected. To ensure a reliable
power system, established limits cannot be violated
intentionally.Application
,Page 2 of 244
A conductor is rated for 180 MVA. The current transformer at one end
is rated at 160 MVA, and the bus is rated at 200 MVA. What is the
MVA limit for this transmission line?
a. 180 MVA
b. 160 MVA
c. 200 MVA
d. 100 MVA
b. 160 MVA
Feedback:
(NERC TOP-001) Each Transmission Operator shall operate to the most
limiting parameter in instances where there is a difference in SOLs.
When coordinating under frequency load shedding and under
frequency generator tripping the _____________________________.
a. breakers should open at the same time as the UFLS
b. generators should trip after the UFLS
c. load should not be shed during the process
d. generators should trip before the UFLS
,Page 3 of 244
b. generators should trip after the UFLS
Feedback: EOP-011, Emergency Operations - The Transmission
Operator and the Balancing Authority shall have Operating Plans with
provisions for operator-controlled manual Load shedding that
minimizes implemented in a timeframe adequate for mitigating the
Emergency. Under frequency load shedding, or UFLS, is designed to
drop load to match generation. Under frequency generator relays are
designed to protect generators from operating at low frequencies for
an extended period. These generator relays should be set to trip to
protect the generators if UFLS is unable to return the frequency to an
acceptable value within a set period of time. The first trip of under
frequency generator relays should be AFTER the last trip of UFLS
relays.
After a major disturbance, Interconnection frequency is remaining
around 59.92Hz, your Balancing Authority's ACE is 0 and you have 200
MW of extra generation. What should the Balancing Authority system
operator do?
a. Offer assistance to entities needing it
b. Change the AGC mode to Flat Frequency
c. Shed Load
d. Increase Generation
, Page 4 of 244
a. Offer assistance to entities needing it
Feedback: After a disturbance where frequency declines significantly,
the entire Interconnection will react (automatically) with governors
increasing generation and load decreasing slightly. Load and
Generation will rebalance at a lower frequency until generation is
increased to return the Interconnection frequency to 60.00 Hz. The
best answer is to offer assistance to the deficient Balancing Authority
by offering the 200 MW of reserves in a bilateral interchange
transaction to help restore generation and load balance in the
Interconnection.
In a capacity deficiency situation, which actions should be considered
if time permits prior to Firm Load Shed?
a. Request the RC declare a NERC EEA Level 3
b. Ensure all available resources in use
c. Implement local Load Management Procedures
d. All the Above
d. All the Above
Feedback: In an Energy Deficient situation, the Energy Deficient Entity
is making use of all available resources, Non-firm energy sales
