What is electric power transmission?
Q: What is electric power transmission?
A: Electric power transmission is the bulk transfer of electrical power from the power plant to substations near populated areas.
Q: What is electric power distribution?
A: Electric power distribution is the delivery of power from the substation to the consumers.
Q: Why is transmission normally done at high voltage?
A: Transmission is normally done at high voltage (110 kV or above) due to the large amount of power and long distances.
Q: How is electricity usually transmitted over long distances?
A: Electricity is usually transmitted over long distances through overhead power transmission lines.
Q: When is underground power transmission used?
A: Underground power transmission is used only in densely populated areas (such as large cities) due to the high cost of installation and maintenance and because power losses increase dramatically compared with overhead transmission unless superconductors and cryogenic technology are used.
Q: What is a power transmission system sometimes referred to colloquially?
A: A power transmission system is sometimes referred to colloquially as a "grid."
Q: What is the purpose of redundant paths and lines in the power transmission system?
A: Redundant paths and lines are provided so that power can be routed from any power plant to any load center, through a variety of routes, based on the economics of the transmission path and the cost of power.
