Study on Influential Factors of ATSE Transfer Time Based on Orthogonal Polynomial Curve-Fitting

Study on transfer time of Automatic transfer switching equipment (ATSE) has been an important part in the process of switch design and development. Starting from analysis of the electrical operational performance test of ATSE, relationship of all key time parameters during its transfer cycle are researched. Then, the circuit and the test method that can satisfy the requirement of the test are designed, and tests on various types of ATSE are completed. Finally, orthogonal polynomial curve-fitting method is introduced, suitable polynomial for fitting analysis on the test data is explored, key factors influencing the transfer time is discovered, and hidden relationship between each other is found, which provide guidance for designing more stable ATSE and carrying out better electrical performance test. (paper)