Temperature Coefficient Â Â The average output voltage change expressed as a percent per degree centigrade of ambient temperature change. This is usually specified for a predetermined temperature range.
Temperature Derating Â Â The reduction in output power due to an increase in ambient temperature.
Temperature Range Â Â Operating: The specified ambient temperature over which it is safe to operate the power supply. Storage: The specified ambient temperature in which the power supply can be stored without risk of damage.
Thermal Protection Â Â A power supply protection circuit which shuts the power supply down in the event of unacceptably high internal temperatures.
Tracking Â Â A characteristic in a multiple output power supply where any changes in the output voltage of one output caused by line, load, and/or temperature are proportional to similar changes in accompanying outputs.
Transfer Time Â Â The amount of time it takes a standby or off-line type UPS to sense a power interruption and switch from utility output to inverter output. Normally expressed in milliseconds.
Transient Recovery Time Â Â The time required for the output voltage of a power supply to settle within specified output accuracy limits following a step change in output load current or a step change in input voltage.
Transient Response Â Â The time required for the output voltage to return within the regulation envelope following a 50% load change. A power supply with quick transient response will reduce the risk of read/write errors during access.
True Power Â Â In an AC circuit, true power is the actual power consumed. It is distinguished from apparent power by eliminating the reactive power component that may be present.
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