Aerospace electrical systems are continuing to increase their voltage levels to meet the on-board power demands of more-electric aircraft (MEA) where hydraulic and pneumatic systems are replaced with electrical equivalents. This trend will only continue as hybrid and all- electric aircraft are developed. These higher power demands require the use of higher voltages and as such it is essential to explore the behaviour of the insulation system in the aerospace environment. This insulation must operate in an environment where the operating temperatures range from 250°C to -65°C, the air pressure is around one tenth of that at ground level and where the levels of humidity and ozone vary rapidly. Understanding the impact of these variables on aircraft high voltage insulation systems is crucial in predicting their behaviour and lifetime. Our work with the IAGOS atmospheric dataset presents worst-case and typical flight environments for higher than expected cruising altitudes, and uses the findings to compare the relative rates of degradation of insulating materials at ground and cruising altitudes.


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    Title :

    Definitions of Test Conditions for High Voltage Aerospace Systems Using the IAGOS Atmospheric Dataset


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Aerospace Systems and Technology Conference ; 2018



    Publication date :

    2018-10-30




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English