Wiring method of country power distribution network construction for county-level cities

Abstract

The invention belongs to the field of country power distribution network construction, and specifically relates to a wiring method of country power distribution network construction for county-level cities. The wiring method of country power distribution network construction for county-level cities includes the following effective steps: a, according to the future planning and development of a city, establishing a long range plane for power grid construction; b, with combination of the long range plan of power grid construction and a short range plan of city construction, determining the short range plan of power grid construction to enable the short range plan of power grid to not deviate from the long range plan of power grid construction so as to guarantee the front and back continuity of the planning thinking; c, according to the short range plan of power grid construction, determining the positions of power distribution stations according to a small-capacity and more distribution-points power distribution station configuration principle; d, based on the direction of streets, confirming the main line direction of a line, and guaranteeing that the direction that extending from a outgoing line transformer station to a transformer station of a line to be looped is the main line direction; and e, utilizing a mode that a loop of outgoing line is utilized to support a plurality of main lines, and laying lines for each main line in a parallel development mode according to the quantity of lines in the long range plan. Therefore, country power distribution network construction for county-level cities is completed.

Description

technical field [0001] The invention belongs to the field of agricultural distribution network construction, and in particular relates to a connection method for construction of agricultural distribution network in county-level cities. Background technique [0002] With the rapid development of my country's economy and the continuous expansion of urban construction scale, the agricultural distribution network formed by connecting to the nearest distribution station is increasingly unable to meet the needs of modern county-level cities. During the construction process, there are often The following problems: 1. The line is circuitous, causing the line to be too long, the line loss is too large, and the terminal voltage is too low; 2. The ring network line segment is too long; 3. Too many branch lines and too long branch lines; 4. The line is developed and formed It was only later that the ring network was found to be difficult. The ring network of the distribution line is main...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of my country's economy and the continuous expansion of urban construction scale, the agricultural distribution network formed by connecting to the nearest distribution station is increasingly unable to meet the needs of modern county-level cities. During the construction process, there are often The following problems: 1. The line is circuitous, causing the line to be too long, the line loss is too large, and the terminal voltage is too low; 2. The ring network line segment is too long; 3. Too many branch lines and too long branch lines; 4. The line is developed and formed It was later discovered that the ring network was difficult

The ring network of the distribution line is mainly the ring network in the substation, and the ring network between the substations is less, so that the power transfer capacity of the distribution network is insufficient when the substation is completely shut down.

In order to achieve the ring network, some lines need to be connected to the ring network with distant lines. The ring network segment is too long, causing problems such as low voltage at the end of the line when the fault is transferred.

[0003] At the same time, this wiring method is not conducive to the transition of the power grid to the future standard grid structure, and it is likely to lead to large-scale changes to the existing lines when the future standard grid structure is constructed, which will not only affect the needs of urban electricity consumption, but also Increasing the time for line transformation will further increase the cost of line transformation, resulting in a lot of waste of resources