描述了发电厂和变电站直流辅助系统中短路电流的计算方法，可配备以下设备，作为短路电流源: -三相交流电桥连接的整流器，频率为50 Hz； -固定式铅酸蓄电池； -平滑电容器； -独立励磁直流电动机 提供一种普遍适用的计算方法，该方法在保守方面产生足够准确的结果。 1999年2月和2000年3月勘误表的内容已包含在本副本中。

Describes method for calculating short-circuit currents in d.c. auxilliary systems in power plants and substations, which can be equipped with the following equipment, acting as short-circuit current sources: - rectifiers in three-phase a.c. bridge connection for 50 Hz; - stationary lead-acid batteries; - smoothing capacitors; - d.c. motors with independent excitation Provides a generally applicable method of calculation which produces results of sufficient accuracy on the conservative side. The contents of the corrigenda of February 1999 and March 2000 have been included in this copy.