Technical Reform And Design Of Power Supply System For Wulan Coal Mine

Wulan Coal Mine is a main coke mine of Ning Xia Coal Industry Group Co.,Ltd . The area of the mine is 15 square kilometers. The designing capacity of annual production was 900,000 tons at present.Following the general planning of"making thorough inquiry in the north and working hard in the south", the coal mine technique reforming is being actively designed, and it is estimated that the yearly producing capacity will be reached over 2.4 million tons in 2006,and the mining year can be continued over 30 years. The mine will be a new large-scale modern coke mine in Ning Xia.The current situation of Power System in Wulan Coal Mine was introduced in this article, the technical reform and design of Power System was put forward, and the general design of the new industry plaza 35kV Power Station is started again, and the Power Station introduces the computer relay protection devices firstly, improving the reliability and safety of the Power Supply Systems. The electric appliances choosing of the new industry plaza 35kV Power Station and the relay protection setting are calculated and demonstrated in detail in this article .The technical and economic analysis was given.According to the technical reform and design, the questions such as high loss, low reliability, poor quality are solved, and providing the energy source to ensure the high production and great development of the mine.