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Low-voltage overhead line planning and design

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When planning low-voltage overhead lines, according to the development plan, various types of electricity indicators and characteristics, consider the adjustment and reconstruction of the existing overhead power lines, and propose a power supply development plan.

Low-voltage overhead line planning and route selection


1. How to plan low-voltage overhead lines?

When planning low-voltage overhead lines, according to the development plan, various types of electricity indicators and characteristics, consider the adjustment and reconstruction of the existing overhead power lines, and propose a power supply development plan. Here are the steps for planning:

(1) Survey of electricity load: The electricity load is the basis for the preparation of the plan. Calculate the total kilowatts of electricity load in each unit and multiply the load by the same time the coefficient is equal to the actual electricity kilowatts. Then consider the development situation in the next five years, then you can provide the selection data of the distribution transformer's location.

(2) Selection of transformer capacity: The transformer should be installed in the load center, and consider the convenience of management and replacement.

The capacity of the transformer is expressed in apparent power in kV·A.

According to the calculation of the power load and the layout of the distribution point, the power load value within the power supply range of the distribution point can be determined. Dividing this value by the power factor 0.8 is the capacity of the required distribution transformer. When there is a discharge load, the capacity of distribution transformers should be chosen based on their maximum load.