3 Terms
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Electricity
A database referring to the existence of a flow of electric charge.
Industry: Utilities
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Electricity
Switchgear
Electrical equipment; Electricity
A general term covering switching and interrupting devices and their combination with associated control, metering, protective and regulating devices. Also, the assemblies of these devices with ...
Switching surges
Electrical equipment; Electricity
High voltage spikes that occur when current flowing in a highly inductive circuit, or a long transmission line, is suddenly interrupted. As the magnetic field about the inductive conductor collapses, ...
System disturbance time
Electrical equipment; Electricity
The time between fault inception and CB contacts making on successful re-closure.
System impedance ratio
Electrical equipment; Electricity
The ratio of the power system source impedance to the impedance of the protected zone.
T-body
Electrical equipment; Electricity
A device used to terminate main feeder cables operating at medium voltages (4-35KV nominal). T-Bodies are moulded from synthetic rubber and are electrically shielded. They are frequently stacked for ...
Tag line
Electrical equipment; Electricity
A rope used to control the position of equipment being lifted. This is not to be confused with the rope used to actually lift the equipment.
Tap changer
Electrical equipment; Electricity
A mechanism usually fitted to the primary winding of a transformer, to alter the turns ratio of the transformer by small discrete amounts over a defined range.