T

Temperature Compensation Adjustment of the rectifier output voltage to provide the optimum charging voltage for the battery. One of the components in system voltage control, calculated by the Supervisory Module calculation based on battery temperature.

Temperature Sensor A sensor that is used to produce a variable electrical output representing the temperature of a component, typically a battery.

Terminal Block An insulating base equipped with terminals for connecting secondary and control wiring. Used on hardwired equipment, such as a UPS, when input plugs and output receptacles are either impractical or unavailable.

Terminal A connector for attaching a conductor to an electrical apparatus.

Three-Phase Power (3Ø) Power that is provided by a single source with three outputs with a phase difference of 120 ° between any two of the three voltages and currents.

Transfer Switch A switch which will transfer current from one circuit path to another without interrupting the flow of the current.

Transformer (T) A device that raises or lowers the voltage of an alternating current electrical source.

Transient The fast radical change in a smooth sine wave that occurs in both voltage and current waveforms during the transition from one steady-state operating condition to another.

Trickle Charge With the trickle charging process, the battery receives a constant voltage feeding a low current. Constant use of this method dries the electrolyte and corrodes the plate, reducing potential battery service life by up to 50 percent.

Two-Phase Power Power which is provided by a single source with two outputs which may be 180 degrees out of phase or 120 degrees out of phase.