An on-line testing and analysis prototype, called TXWIN, for distribution power transformers is presented in this paper. TXWIN allows the user to perform no-load test, load-loss test, and ratio test automatically via Windows Graphic User Interfaces (GUI). It also contains other transformer performance tests: DC resistance measurement test, high tension test, and insulation test. The prototype also has the functions to analyze test results, generate customized reports, and store transformer data in database.

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Along with the unceasing infiltration and fusion of power cyber space and physical space, a typical power cyber physical complex system is constructed, which brings new challenges to the reliability evaluation of power information communication network. For the reliability assessment of power information communication network is a multi index issue where the indexes have deep dependence and coupling, a comprehensive reliability evaluation model is constructed. At first, this paper introduces the related theory of factor analysis, and then constructs the reliability evaluation model based on factor analysis. Finally, the effectiveness of the proposed method is shown by applying this method to an example of a power communication network.