Glossary terms subset beginning with T
Click one of the letters above to go to the page of all terms beginning with that letter.
- thermally uprate
- Thermal uprating increases the operating temperature of a line to allow more current to be carried. To maintain safety clearances, this typically requires the conductors to be retensioned.
- Towers are support structures that have crossarms to hold the conductors clear of the ground. Towers are sometimes referred to as pylons.
- A static electric device consisting of a winding or two or more coupled windings which transfer power by electromagnetic induction between circuits of the same frequency, usually with changed values of voltage and current. A term used in TP.MS 20.06 to include oil-immersed transformers (distribution, earthing, local service, power or generating, but excluding instrument) and oil-filled voltage regulators, reactors and associated components.
- transmission circuit
- Each transmission line carries one or two transmission circuits (and on rare occasions, three or four). Each circuit comprises a set of three conductors (wires) and is an electrical connection between two substations.