电网实时监控、检测技术的广泛应用，获取电网信息的及时性和准确性越来越高，为电网运行、故障判断提供了可靠的数据依据。多电源点系统中任一点故障，对系统各点参数产生的影响都是有规律的，掌握了这种规律就能推理出故障点。%The real-time monitoring technology and the testing technology are widely used. Obtaining grid information is getting increasingly in time and correctly. These provide reliable data bases for grid running and fault determination. The impact of faults in any point in the multiple power supply point system on parameters of each point of the system is regu-lar. Mastering this law will be able to determine the fault point.
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