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Prediction of In-Orbit Power on Time for Transformer Based on Gas Permeation Analysis of the Seal Cavity

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Abstract

The gas permeability of solid material is one of the important factors affecting pressure change properties of seal products. In this article, the pressure change analysis based on gas permeation and material outgassing principle of the seal cavity for satellite in-orbit is carried out. Through establishing the pressure change model of the seal cavity, analyzing the gas permeation of the encapsulating material, testing the material outgassing characteristics of the transformer body, this paper obtained the pressure change trend of the transformer sealing cavity during its time in-orbit and predicted the time required for it to escape from the lower pressure discharge region. Furthermore, a comparison of the pressure change time was made between the transformer seal cavity with in-orbit failure and ground simulation analysis of the same design, which shows good agreement. The analysis results can provide guidance for determination of the next power on time of the transformer and be used as a reference for decision makers.

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Acknowledgements

The authors would like to acknowledge the support by the Gansu Province Major Science Technology Projects (No. 17ZD2WA001), National Natural Science Foundation of China (Grant Nos. 61471184, 61627805, 61501212, 61701210). The Nature Science Foundation of Gansu Province (Grant No. 18JR3RA012).

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Authors and Affiliations

  1. Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou, 730000, China

    Lian Chen, Ya-li Li, Wen-jun Sun, Meng Dong, Tian-you Feng, Lan Zhao, Dong Ding & Yong-jun Cheng

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  1. Lian Chen
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  2. Ya-li Li
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Correspondence to Lian Chen.

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Chen, L., Li, Yl., Sun, Wj. et al. Prediction of In-Orbit Power on Time for Transformer Based on Gas Permeation Analysis of the Seal Cavity. MAPAN 35, 233–239 (2020). https://doi.org/10.1007/s12647-020-00365-6

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