Abstract With the booming economic development, the demand for electricity has surged, and the demand for distribution facilities is also increasing day by day, among which the construction of substations is particularly important. Therefore, the design and construction of 10kV substations must take into account the location of the site and other factors to optimize planning. The main contents of the project include load calculation, selection of substation main transformers, design of substation feeders, short-circuit current calculation, power factor correction, selection and calibration of electrical equipment, and design of switch gear equipment. The demand factor method is often used to calculate the low-voltage side load of substations. In order to reduce reactive power losses and improve power factor, reactive power compensation was added to the design, increasing the power factor from 0.74 to 0.96. In order to calculate the short-circuit current, the short-circuit point was selected and its specific value was calculated. Electrical equipment was selected based on the rated current and calibrated according to the results of the short-circuit current calculation method. After various calculations and optimization designs, the overall electrical and mechanical design scheme was finally determined. In this process, many new designs and methods were introduced, and many technical peculiarities were noted. The design of the distribution network has been optimized and coordinated to ensure the safety, quality, and reliability of power supply. The project achievements fully reflect the technological progress of modern power engineering design in energy conservation, consumption reduction, and reliability improvement, and have made beneficial explorations for building a new type of power system.
Chen Chen (Tue,) studied this question.
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