NERC Post Assessment Actual Final Exam Questions with all Questions Accurately Answered 2023/2024
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Course
NERC
Institution
NERC
NERC Post Assessment Actual Final Exam Questions with all Questions Accurately Answered 2023/2024
Auto-load - correct answer a feature on some generators that automatically moves the generator to a target load (mw) level.
Automatic generation control (agc) - correct answer equipment that ...
NERC Post Assessment Actual Final Exam
Questions with all Questions Accurately
Answered 2023/2024
Auto-load - correct answer a feature on some generators that
automatically moves the generator to a target load (mw) level.
Automatic generation control (agc) - correct answer
equipment that automatically adjusts generation in a balancing
authority area from a central location to maintain the balancing
authority's interchange schedule plus frequency bias. Agc may
also accommodate automatic inadvertent payback and time error
correction.
Automatic operations systems - correct answer special
protection systems, remedial action schemes, or other operating
systems installed on the electric systems that require no
intervention on the part of system operators.
Auto-transformer - correct answer a power transformer with a
single coil. The entire coil acts as the primary winding while a
portion of the same coil acts as the secondary winding.
Auxiliary relay - correct answer a relay whose function is to
supplement the actions of other types of relays. For example, a
lockout relay is an auxiliary relay with numerous contacts that
each can perform an action. The ieee has numbers assigned to
two types of auxiliary relays; 86 (lock-out) and 94 (tripping).
,Availability - correct answer a measure of time a generating
unit, transmission line, or other facility is capable of providing
service, whether or not it actually is in service. Typically, this
measure is expressed as a percent available for the period under
consideration.
Available flowgate capability (afc) - correct answer the
available capacity in mw or mva on a flowgate, which a
transmission service provider has determined, is available for
sale. The available capacity determined will be dependent on the
generation, loads and transmission configuration assumed for the
time period studied and therefore is referred to as a capability.
The afc will account for all thermal, voltage and stability limits
under both pre and post contingency conditions, along with any
trm or cbm. There is no one set of source and sink points
associated with an afc. The afc can be used to determine the
amount of mw that can be transferred between a specific set of
source and sink points with respect to the flowgate, by dividing
the afc by its corresponding ptdf.
Available transfer capability (atc) - correct answer a measure
of the transfer capability remaining in the physical transmission
network for further commercial activity over and above already
committed uses. It is defined as total transfer capability less
existing transmission commitments (including retail customer
service), less a capacity benefit margin, less a transmission
reliability margin.
Avoided cost - correct answer the cost the utility would incur
but for the existence of an independent generator or other
energy service option. Avoided cost rates have been used as the
power purchase price utilities offer independent suppliers.
,Back emf (conductors back emf) - correct answer when ac
current flows through a conductor an alternating magnetic field
is created. This alternating magnetic field induces a voltage in
the conductor. The induced voltage is called the conductor's back
emf.
Back-to-back hvdc - correct answer an hvdc system in which
ac is converted to dc and then immediately back to ac. The hvdc
transmission path is very short, normally consisting of a short
section of buswork.
Backup power - correct answer power provided by contract to
a customer when that customer's normal source of power is not
available.
Balancing authority - correct answer the responsible entity
that integrates resource plans ahead of time, maintains
loadinterchange-generation balance within a balancing authority
area, and supports interconnection frequency in real time.
Balancing authority area - correct answer the collection of
generation, transmission, and loads within the metered
boundaries of the balancing authority. The balancing authority
maintains load-resource balance within this area
Bandwidth - correct answer the acceptable range of a
quantity. For example, if it is desired to hold the voltage at a 345
kv bus between 355 and 360 kv then the bandwidth is 355 - 360
kv or 5 kv.
, Banking - correct answer energy delivered or received by a
utility with the intent that it will be returned in kind (as energy)
in the future.
Base load - correct answer the minimum amount of electric
power delivered or required over a given period at a constant
rate.
Base load capacity - correct answer capacity used to serve an
essentially constant level of customer demand. Base load
generating units typically operate whenever they are available,
and they generally have a capacity factor that is above 60%.
Base load generating units - correct answer generators that
normally run continuously to serve a balancing authority's load.
Bilateral payback - correct answer inadvertent interchange
accumulations paid back via an interchange schedule with
another balancing authority.
Bipolar hvdc - correct answer an hvdc system that uses two
conductors. One conductor is energized with a positive voltage
and the other a negative voltage.
Black-start unit (bsu) - correct answer a generating unit that
has the ability to go from a shutdown condition to an operating
condition and start delivering power without assistance from the
power system the generator normally connects to.
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