Voltage Power Supply Planning, And Emerging Large-scale Industrial Park

Firstly, this paper introduces the status quo of the medium-voltage distribution network and main contents of its planning. Then three thesises are detailedly researched , including the medium-voltage power supply level selection, distribution neutral earthen method selection and distribution power automation planning of the medium-voltage power supply in the new promoting large industrial region.In the part of the medium-voltage power supply voltage level selection, the paper first summarizes the developing process, existing questions and developing direction. In addition to that, it introduces the power supply condition of 20kV network at home and abroad. Furthermore, the paper research the technical and economic rationality of power supply of 20kV network in new promoting large industrial region, and a data experiment is illustrated to analyze and explain its correctness.In the second part, the neutral earthen methods at domestic and abroad are introduced . Then the paper has a dissertation of the selection of the neutral earthen through small resistance in new promoting large industrial region.In the last part, namely the distribution automation planning, the paper discusses the automation structure planning, the system function, feeder automation and devices technology requirement, as well as economic and technical proceeds.