Power supply method and system for reducing power utilization cost of 35KV power utilization enterprise

Abstract

The invention discloses a power supply method and system for reducing the power utilization cost of a 35KV power utilization enterprise, and relates to the technical field of enterprise power utilization, and the method comprises the steps: enabling a 10KV bus to be in parallel connection with a step-up transformer, converting a 10KV voltage into a 35KV voltage, and transmitting the 35KV voltage to a 35KV power transmission line; and enabling the 35KV power transmission line to be connected with a step-down transformer in parallel, converting the 35KV voltage into 10KV voltage and transmittingthe 10KV voltage to a 10KV power transmission line; and the system comprises the step-down transformer, the step-up transformer, a 35KV switch, a 10KV power distribution cabinet, a low-voltage 0.4 KVpower distribution cabinet, a 35KV power transmission line and a self-power plant. The working voltage of each sub-mining area of a mine enterprise is ensured through a mode of reducing voltage, boosting voltage and then reducing voltage, and the transformer of the transformer substation of each sub-mining area of the enterprise does not belong to primary side power receiving equipment and does not need to charge capacity fee. The capacity of the parallel step-down transformer is reasonably configured according to the power load distribution condition of each mining area of an enterprise, andrepeated surplus capacity waste of the transformer during independent power supply is avoided. Therefore, the expenditure of basic capacity cost is greatly saved, and the power cost of enterprises issaved.

Description

technical field [0001] The invention relates to the technical field of electricity consumption by enterprises, in particular to a power supply method and system for reducing the electricity consumption cost of 35KV electricity consumption enterprises. Background technique [0002] Due to the development and growth of enterprises, they usually set up multiple branch companies or branch factories in different places, especially the sub-mining areas or branch companies located in old mines, and the mining areas are often more than ten or tens of kilometers apart. Due to the long distance from the power supply, each mining area or branch company has set up a 35KV substation, and in order to ensure the normal operation of each mining area, each substation must have a certain amount of rich capacity, which has caused the company to pay a lot of basic transformer capacity. electricity bills. Contents of the invention [0003] In order to overcome the above problems or at least p...

AI Technical Summary

Problems solved by technology

Due to the long distance from the power supply, each mining area or branch company has set up a 35KV substation, and in order to ensure the normal operation of each mining area, each substation must have a certain amount of rich capacity, which has caused the company to pay a lot of basic transformer capacity. electricity bill

Images