Electrical Power Transmission System
Engineering (4th Edition, 2026) – Solutions
Manual – Gonen
Generating Stations - answer-Where energy from coal, gas, steam, water, and atoms are
converted into electrical energy.
Substations - answer-Substations change voltage of circuits, connect or disconnect lines or
equipment from each other, and control the flow of power by adjusting voltage and current.
Phase - answer-A term referring to an energized conductor. A distribution main line feeder has
three phases.
Generation Substation Transformer - answer-Substations located at the generation station that
step voltage up and connect to the transmission system.
Transmission Lines - answer-Lines that move large quantities of power over long distances at
high voltages, and are most commonly energized at 115kV, 138kV, 161kV, 230kV, 345kV,
500kV, 765kV.
Transmission Substation - answer-Substations that are used to tie transmission lines together,
or to step voltage down from one transmission voltage to another.
Sub-Transmission Substation - answer-Substations that are used to step voltage down from
transmission levels to sub-transmission levels.
Sub-Transmission Lines - answer-Lines that move medium quantities of power to distribution
1
Engineering (4th Edition, 2026) – Solutions
Manual – Gonen
Generating Stations - answer-Where energy from coal, gas, steam, water, and atoms are
converted into electrical energy.
Substations - answer-Substations change voltage of circuits, connect or disconnect lines or
equipment from each other, and control the flow of power by adjusting voltage and current.
Phase - answer-A term referring to an energized conductor. A distribution main line feeder has
three phases.
Generation Substation Transformer - answer-Substations located at the generation station that
step voltage up and connect to the transmission system.
Transmission Lines - answer-Lines that move large quantities of power over long distances at
high voltages, and are most commonly energized at 115kV, 138kV, 161kV, 230kV, 345kV,
500kV, 765kV.
Transmission Substation - answer-Substations that are used to tie transmission lines together,
or to step voltage down from one transmission voltage to another.
Sub-Transmission Substation - answer-Substations that are used to step voltage down from
transmission levels to sub-transmission levels.
Sub-Transmission Lines - answer-Lines that move medium quantities of power to distribution
1
