The principle of power transmission and distribution is a basic knowledge in the power system, involving the transmission and distribution of electric energy. In the power system, the principle of power transmission and distribution mainly includes two links: power transmission and distribution.
Power transmission refers to the process of transmitting the electric energy generated by the power plant to the user terminal through the transmission line. The transmission line usually uses high voltage for transmission, which can reduce the line current and reduce the line loss. The main components of the transmission line include wires, insulators, towers, etc. In the transmission process, it is necessary to consider factors such as line voltage loss, current load, and line impedance to ensure the stable transmission of electric energy.
Power distribution refers to the process of distributing electric energy from the transmission line to the user terminal. Power distribution usually starts from the substation, and the high-voltage electric energy is converted into low-voltage electric energy suitable for users through the distribution transformer. The distribution line usually uses low voltage for transmission to meet the needs of the user terminal. In the distribution process, it is necessary to ensure that the electric energy can be safely and reliably distributed to each user terminal, and at the same time, the load balancing and fault protection of the distribution line must be considered.
The key goal of the principle of power transmission and distribution is to improve the transmission efficiency and distribution quality to meet the user's demand for electric energy. In practical applications, factors such as the stability of the power system, voltage control, and the design of protective devices also need to be considered. At the same time, with the development of the energy field, the access to new energy sources has also put forward new challenges and requirements for the transmission and distribution principle.
In short, the transmission and distribution principle is an indispensable part of the power system. Through scientific design and optimization, the safety, stability, and reliability of the power system can be improved, providing a reliable power supply for the development of social economy.
