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12
2025
-
02
What are the differences among power transmission, power supply, and power distribution?
Author:
Power transmission refers to the process of converting high-voltage electricity generated at power plants into low-voltage electricity suitable for use in cities or factories via substations.
I. Power Transmission
Power transmission refers to the process of converting high-voltage electricity generated at power plants into low-voltage electricity suitable for use in cities or factories via substations. During power transmission, electrical energy is conveyed through high-voltage cables or overhead transmission lines. In the course of transmission, it is essential to take full account of factors such as cable or transmission line length, resistance, and current levels, in order to ensure stable and efficient power delivery.
II. Power Supply
Power supply refers to the process of providing electricity services to cities or factories. The main methods of power supply are cable-based supply and overhead-line supply. During the power-supply process, it is necessary to design and construct power lines and substations based on electricity demand, ensuring the stability and reliability of the power service.
III. Power Distribution
Distribution refers to the process of converting high-voltage electrical energy through substations and then distributing it to various end-user terminals. During distribution, substations progressively step down the voltage to meet the diverse power consumption requirements of different end users. Distribution systems primarily consist of high-voltage distribution systems, medium-voltage distribution systems, and low-voltage distribution systems. In distribution systems, ensuring the safety and stability of power transmission is critically important.
In general, although transmission, power supply, and distribution have certain distinctions, they each play an important role in the power system. Through rational design and construction, these components together form an efficient and reliable power system that provides the essential electrical support for our production and daily life.
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