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Introduction and Importance of Power Transmission and Transformation 2012-09-19
The power is very indispensible for the fast development of the society. When the power is produced, it needs to be transmitted to the required places. Therefore, the power transmission and transformation project is developed for efficient power transmission with less power loss during the process of transmission. The power transmission and transformation is considered to be very important to the development of national economy and people's life. The industrial production greatly relies on the power. The whole world's demand for electricity continues to increase, and the power transmission and transformation system is being continuously expanded and upgraded to meet the requirements of the world's growing population and economy.
 
The power transmission and transformation system belongs to a part of the power system which is composed of power production part, power transmission part, power transformation part and power use part. The power transmission and transformation system has the working principle that when the power is for transmission, the power will be processed through voltage increase to decrease the current so as to reduce heat loss. When the power is transmitted to the desired place, the power transmission and transformation system will decrease the voltage of the power and increase the current for use. The power will experience several times of transformation during the transmission so as to reduce power loss and lower use danger.
 
The power transmission and transformation system is composed of wires, transformers, switches and high voltage insulators. The wire is commonly made of aluminum because the metal has good electrical conductivity, corrosion resistance and less heat loss. The wire can be installed over the ground or can be made into electric cable to be buried under the ground. The wires form transmission lines which carry power from power plants to areas where power is needed. The transformer is made of silicon-steel sheet, insulation material, etc. The switches are made of stainless steel and ceramics. The high voltage insulators are made of insulation materials such as quartz enriched porcelain and alumina porcelain.
 
The power transmission and transformation system is widely used in factories, villages, schools, construction sites, etc. where requires large amount of consistent power. The power transmission and transformation allow the power to be safe and efficient for people to use in life and industrial production. The transformed power has made life simple and easy. Strong power transmission and transformation system can ensure reliable electric service and regional electricity markets.