derating


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derating

[dē′rād·iŋ]
(electronics)
The reduction of the rating of a device to improve reliability or to permit operation at high ambient temperatures.

derating

The reduction in the normal rating of equipment to account for abnormal environmental conditions to which the equipment may be subject.
References in periodicals archive ?
This paper will report on the flue gas CO-AF concentrations and minimal derating potential, as well as observations on the operation of the ignition system, heat exchanger temperatures and discolorations indicative of high thermal stresses, and the high temperature limit control switches.
In both commercial and wireless applications, the built-in over-temperature protection and derating function means there is no need for additional components to control heat.
The 4% derating standard was based on work initially done in an altitude chamber by Eisman et al.
If temperatures in a facility are chronically above this level, the UPS can still operate, but derating may be required.
Configurable over-temperature derating ensures predictable bulb operating life
175 % for 2 sec; ambient air temperature of 50AC without derating (IP20); IP20 and IP66 protection; an integrated PI controller and V/F control with voltage boost.
The drive offers true side-by-side mounting without any derating due to its compact, bookstyle design.
GENEVA, June 17 /PRNewswire-FirstCall/ -- STMicroelectronics , the market leader in thyristors and TRIACs, has introduced the first TRIACs with 10mA gate sensitivity to be specified for operation up to 150 degrees C without derating, enabling low-cost solutions for heaters, motors and other small appliances, through savings in heatsinks, and gate-drive power-supply and snubber circuitry.
However, the unique protection gives effective heat transmission during a normal operating temperature, thus reducing the requirement for derating.
TCJ Series capacitors maintain 20% recommended voltage derating, extends usable voltage range