A design method for power distribution of 35kv lines

Abstract

The invention discloses a design method used for 35 kV line distribution. Some regions utilize towers with a 10 kV distributing line to erect a 35 kV line, and the towers adopt 12 m and 15 m reinforced concrete poles; insulators used for supporting the towers are in a line construction mode of cross arm insulators, the manufacturing cost and the maintenance cost are reduced, the building period is shortened, the line loss is reduced, and the purpose of farming net power supply quality is improved. The design method comprises the following steps of designing a 35 kV line framework, and selecting a line path and the insulators; designing a 35 kV line tower; and finishing a line design, and forming 35 kV line design explanation, material detailed list and drawing. The method can solve the contradiction of never-never land country power utilization requirement and the electric network construction fund pinch, can effectively solve the problems that a 35 kV power source spotting is not enough, a 10 kV matching construction development is slow, or 10 kV line supplies power in a routing manner, the power supply semidiameter is long, the line loss is large, and the power quality is poor.

Description

Technical field [0001] The present invention relates to the field of electric power systems, in particular to a design method for 35kV line distribution. Background technique [0002] In some areas, due to lack of funds for rural power grid construction, 35kV power supply is insufficient, medium-voltage distribution grids are mainly single-power radiation power supply, and the construction of 10kV supporting projects is slow or the 10kV line is circuitously powered, resulting in long power supply radius, heavy line load, and The loss is so large that residents along the line cannot use electricity or the power supply voltage is low, which seriously affects the normal production and life of residents. At present, when solving the power consumption in these areas, the conventional 35kV or 10kV line construction is still carried out in accordance with the medium and long-term plan. However, the conventional line design and construction face difficulties such as difficult site select...

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Problems solved by technology

[0003] In order to effectively solve the problems of insufficient funds for power grid construction in the above-mentioned areas, difficulty in power grid extension, load dispersion and poor power supply quality, on the basis of the conventional power grid construction mode, the present invention proposes a design idea for 35kV power distribution lines, 35kV power distribution lines Line design is to use towers of 10kV distribution lines in the above-mentioned areas to erect 35kV lines. The towers use 12m and 15m reinforced concrete poles; The insulator adopts the cross-arm insulator; the corner, the strain resistance and the terminal adopt the suspension insulator

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