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首页> 外文期刊>Russian electrical engineering >Equivalent Scheme for Calculating Short-Circuit Current in an Alternating-Current Electric Traction Network
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Equivalent Scheme for Calculating Short-Circuit Current in an Alternating-Current Electric Traction Network

机译：交流电牵引网络中短路电流的等效计算方案

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摘要

The authors have proved the feasibility of substitution of a three-phase power-supply system with a single-phase one when calculating three-phase circuits in electric traction network irrespectively of the external power supply arrangement. In addition, calculation features have been established for particular transformer winding connection configurations (Y/Y or Y/Δ). Based on results of an analysis performed for minimizing the methodological error in calculating the short-circuit currents, a single-phase equivalent circuit has been developed for the intersubstation zone of the traction network, which takes into account the connection between two adjacent substations via an overhead transmission line of 110 (220) kV. An example of calculation in accordance with the proposed replacement scheme is given.
机译：作者证明了在计算电力牵引网络中的三相电路时，与外部电源装置无关，用单相系统替代三相电源系统的可行性。此外，已经为特定的变压器绕组连接配置（Y / Y或Y /Δ）建立了计算功能。根据为使短路电流计算中的方法误差最小化而进行的分析结果，已为牵引网络的变电站间区域开发了单相等效电路，该电路考虑了两个相邻变电站之间通过电网的连接。 110（220）kV架空输电线路。给出了根据建议的替换方案进行计算的示例。

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