Power transmission and transformation engineering construction general contract
Overview
The power transmission and transformation project is a general term for the construction of transmission lines and the installation of transformers. The higher the voltage level of the power transmission and transformation project, the greater the transmission power and the longer the transmission distance.
Power transmission and transformation projects with voltages exceeding 330,000 volts are called "ultra-high voltage power transmission and transformation".
The highest voltage levels of EHV transmission and transformation lines put into operation in my country are ±1100kV DC transmission lines and 1000kV AC transmission lines.
Principle
Generally speaking, the power system includes "transmission, transformation and distribution" electricity, commonly known as transmission and distribution, transformation and distribution, etc. Number one, substation. Such as a certain 35kV substation. The effect of the substation boosts and bucks. It can be understood as a water pumping station, and you can also look at the operation process of ships passing by the Three Gorges Reservoir, which is somewhat similar. Substation all primary, secondary, terminals. Second, motivation. The power that drives the generator to rotate, some companies use coal-fired electricity for their own use, and some take out. Some are hydro, like some reservoirs.
Industry judgment
Industry judgment: As the contradiction between power supply and demand is gradually eased, the growth of my country's power supply construction will decline in the future, the demand for new installed capacity will gradually decline, and the power supply structure will be adjusted. In the future, the proportion of clean power will increase, and new energy power generation equipment will enter the stage of rapid development. In recent years, the structure of power generation and transmission and distribution has been seriously unbalanced, and it is an inevitable trend for the long-term development of my country's power industry to continue to increase investment in the power grid in the future. The national launch of the UHV experimental demonstration project marks the official opening of the construction of my country's UHV power grid, and the leading enterprises in the production of UHV products will face rare opportunities for development.
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