Design On Power Supply And Distribution And Integrate Automatization System For Jiangbei Fertilizer Factory Of Chongqing

The study object of the paper is about a large fertilizer factory where a lot of high and low voltage supply devices are. The original system is difficult to satisfy the production demands if adding some load to the old system. Even the power supply and distribution room's automatization level is some displayed obsolete. The new project design is not only to satisfy the existing production, but also to optimize structural design, improve the running level, confirm the system's running plan. The improving system is with the purpose of guaranteeing system safety, the means of adjusting burden, integrate the existing resources to insure the scientific project of power supply design, and to upgrade the power supply and distribution room's intelligence level with the design of the automatization system.According to analyze the concrete situation about the originally possessed load and the increased capacity, it is to choose the location of the new switch room, definitude the load grade, adjust the load together with generatrix, confirm the system running plan and the parameters of electrical power distribution cabinet. Choosing and testing the electrical devices matched condition, researching and designing the second loop by calculation of load, short circuit current and peak/short-time withstand current test. They can guarantee the effective running for the loop of the controlling, adjusting, relay protection and automation equipment, measurement and signal and the operated supply power. On the course of system optimizing, to save energy, fund and the improving cost, it should raise the utilization and the usage efficiency of electric power as far as possible . At last, it studied the system structure of the automation system and combined ourselves to discuss the foundation of intelligent transformation and distribution station as the basis of realization for the system improvement. On the base of designing the power supply and distribution system , with the state of realising automatization for power supply and distribution room ,we progress feasibility analysis from design principle, system configure and construction, function and technique index. At last, the soft design is also progressed.