Comparison and difference between the short circuit current method in IEC and the practical algorithm widely applied in China are described.Both methods are applied for the calculation of the short circuit current of one hydropower station.The corresponding results are compared and analyzed.Comments are provided for reference.%对比介绍了IEC标准中的短路电流算法与中国广泛采用的实用算法异同，并分别采用2种算法计算某水电站短路电流，对计算结果进行对比分析，给出建议供广大设计者参考。
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