electrical system Flashcards
the generation system converts other form of energy to___energy.
electrical
Cogeneration plants are different from regular commercial generating stations because the heat, after it generates electricity, is later sold to a(n)
central heating plant or manufacturer
Electrical energy cannot be transported economically over long distances.
false
Most electric energy is generated at a voltage range of ? and then stepped up to transmission line voltage.
12 to 24 kv
If the voltage is doubled, the energy that can be transmitted is doubled without an increase in line losses.
false
a typical transmission circuit voltage is ?
115 kv
A commonly used medium voltage on distribution circuits is ?
13.8 kv
The power plant is one of the main segments of a distribution system.
false
a___network is used for heavily loaded downtown areas in a city
primary
When an operator has remote control over the system through the use of a communications system between stations, that type of control is known as ?
supervisory
Six types of communications systems used by utilities to provide control for their systems are telephone lines, fiber-optic cable, radios, power line carriers, microwave systems, and ?
satellites
Generating stations are not interconnected by transmission lines into giant regional pools or grids that cross utility boundaries.
false
The reference material compares a radial distribution system design to a ?
tree
According to the reference material, there are ? main segments to a distribution system.
6
The two main types of distribution underground systems are direct-bury and ? system.
duct and maintenance vault
