Windchill Risk and Reliability Desktop Help > Windchill Prediction > Part Parameters Required for Predictions > Stress Parameters > Power Parameters
Power Parameters
Power parameters are entered for many different part types in the Prediction Data pane. The following table describes all power parameters that can appear. If they are not required for a particular part type, either that parameter is not shown or an exception is noted in the Prediction Data pane.
Parameter
Type
Description
Operating Power or Power Dissipation
Real (Watts)
The operating power of the device in the circuit. This parameter is used in temperature calculations. For more information, see Temperature Parameters.
Power Rating
Real (Watts)
The rated power of the device.
* 
Power rating is a derating parameter. Under Prediction in the Project properties, Show derating fields on Part Data form controls whether the Derating Parameters box appears on the right side of the Prediction Data pane. For more information, see Derating Parameters.
Required Power
Real (Watts)
The required power output of the device.
Power Ratio
Real
Generally, this field is left at #.#. The power ratio is calculated as follows:
Power Ratio = (Operating Power / Rated Power) * 100
If you enter a value for this parameter, this value is used in place of a calculated power ratio.
Stress Parameters