Power Engineering
Part 1
Part 1
What are the main subsystems of power engineering?
Generation
Transmission
Distribution
A transformer has 2 windings …
primary and secondary
100
VOLTAGE
100
SMART GRID
NPP
nuclear power plant
Electric energy is transmitted over long distances via … (name 2 ways)
overhead lines and underground cables
An electricity network founded on digital technology
Smart grid
200
CONDUCTOR
200
SUBSTATION
kVA
kilovolt ampere
Types of transformers which increase and decrease the voltage level
Step-up and step-down transformers
A prolonged cutoff of electric power, especially as a result of a shortage, a mechanical failure, or overuse by consumers is called:
a) outage
b) blackout
c) failure
b) blackout
300
RENEWABLES
300
POWER TRANSFORMER
EHV
extra high voltage
An electrical device that transfers electrical energy from one circuit to another through the process of electromagnetic induction
Transformer
A type of fault-detecting device that is used to detect a fault in the system and sends a signal to the circuit breaker:
a) relay
b) switchgear
c) lightning arrester
a) relay
400
BLACKOUT
400
GENERATOR
EMF
electromotive force
An electric discharge of gases which is produced by passing an electric current between two points called electrodes
Electric arc
Name types of circuit breakers based on the arc interrupting medium
Vacuum circuit breaker
SF6 circuit breaker
Oil circuit breaker
Airblast circuit breaker
500
INSULATOR
500
AIR BLAST CIRCUIT BREAKER
SCADA
supervisory control and data acquisition system система диспетчерского управления и сбора данных