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Electrical & Electronics Engineering vocabulary · Power Systems and Electrical Machines

Transmission line

Meaning in electrical & electronics engineering, with examples

nounCommon term

In electrical & electronics engineering, transmission line means: A high-voltage line, usually overhead on towers, that carries large amounts of power over long distances. In electronics, the term also means a cable or trace whose impedance has to be controlled.

In Turkish: iletim hattı, enerji iletim hattı, enerji nakil hattı

How it is used

Used in power engineering and in RF and high-speed design. Power engineers talk about overhead and underground transmission lines, line voltage (in Turkey mainly 154 kV and 380 kV), towers, conductors and line losses. RF engineers talk about matching a transmission line to its load.

Example sentences

  1. The new 380 kV transmission line will carry power from the plant to the city.

  2. At these frequencies the trace behaves like a transmission line, so its impedance must be controlled.

Common collocations

  • overhead transmission line
  • high-voltage transmission line
  • line losses
  • transmission tower
  • gridThe interconnected network of power plants, transmission lines, substations and distribution lines that delivers electricity to consumers. It is also called the power grid or the mains.
  • substationA facility in the power network where transformers step the voltage up or down, and where circuits are switched and protected with breakers, disconnectors and protection relays.
  • impedanceThe total opposition a circuit offers to alternating current, combining resistance and reactance. It is measured in ohms and usually changes with frequency.
  • transformerA device that transfers AC power from one winding to another through a shared magnetic core, usually to step the voltage up or down. It does not work with DC.

This word in other fields

The same English word can have a different meaning in another field:

More terms: Power Systems and Electrical Machines

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