eg2 week 3 Flashcards
this refers to the time of day when the demand for electricity is at its highest
peak load
typically when is peak load?
late after noon and early evening hours 12 pm to 6 pm
the department of energy defines smart grid as?
an incorporation of concepts, philosophies, and tech. that enabled the internet into the electrical grid
occurs when an outage on a circuit causes outages on interconnected circuits because the interconnected circuits are not able to support the additional load
cascading
cascading is most likely to occur when?
when demand is at its peak
the strain on the grid during peak loading and the effects of cascading power failures best explain why we need what?
a smarter electrical grid
uses automation to sense disturbances on the system, and automatically trigger key operations to keep more customers in service
self healing
methods of reducing consumption of electricity by customers, especially during times of peak loading
demand side management
detroit was dark during the 2003 ________, and the city found itself experiencing the same scenarios jut 11 years later
black out
since the source of electricity is not centralized, the system must be configured to allow __________.
bi directional energy flow
a portion of the electrical system that can operate independently from the main grid
islanding
generators that increase operation only during the peak loading times of day, if needed
peaker plants
flywheel technology produces electricity by rotating a rotor at a very high speed, and then using the rotating energy to produce electricity. true or false
true
aluminum composite core conductor can carry as much as twice the current as its predecessors of the same size. true or false
true
older components are still reliable and operating on the systems. they are reffered to as what in the book?
legacy
S&C’s Intelliruptor Pulsecloser has what features?
hot tag line, provides real time data and can limit the fault current that the system can deliver to the fault
features that trip savers have
fits right in a conventional cutout, single phase recloser, can be coordinated to operate as a sectionalizer
is a fixed capacitor bank considered smart or legacy?
legacy
voltage regulators correct power factor true or false?
false
ACCC stands for?
aluminum conductor composite core
___________ also called ____________ are strategically located in substations that interconnect the generators and the transmission systems together
phaser measurement units, syncrophasors
a philosophy that allows the real time conditions surrounding conductors to be monitored
dynamic line loading
is a shield wire installed at the tops of structures
optical ground wire
can form when larger portions of circuits begin islanding
microgrids
scada
supervisory control and data acquisition
is the intentional lowering of system voltage to help reduce demand on the system
conservation voltage reduction
a communication network that allows a customer to remotely connect and control many automated digital devices throughout the home
smart home
customers will be able to monitor, manage, and control their energy usage through home area display units, computers or cell phones
demand side management
it is estimated that energy consumption by _________ is the 2nd biggest use of energy in the home
lighting
is using natural daylight for lighting and reducing artificial lighting from light bulbs
daylight harvesting
is a drivers fear of being stranded by a depleted battery before reaching their destination
range anxiety
hybrid vehicles use what standard volt outlet
120V
