| With the rapid development of China’s ecomomy,the reliability of power supply has been increasingly requested by national productionand life.However,power supply equipments are often blocked due to irresistable causes,leadingto blackout even electricity users’ unnecessary lost.As an important part of power grid,the 10 kV ditribution line takes a significant hit in the safty and usage of reliable electricity.That once the distribution line trips or lands,blackout will follow not only disturbs electricity of production and life,but also decreases economic benifits of electrical supply enterprsises.Cutting down on the times of the distribution line tripping and landing is effective to add to the reliability of power supply and economic benifits.Therefore,it is very integral to study and determine why the 10 kV ditribution line trips and lands then to take pecautions.In the background of how three 10 kV dsribution lines of Yuejin racecourse power station of Horqin Right Front Banner in Inner Mongolia Autonomy Region work,on various main causes of the 10 kV dsribution line tripping and landing,this paper shall take accordingly precautions so as to decrease times of 10 kV dsribution line tripping and landing,enhance the reliability of power supply and increase economic benifits.Through factual investigation,there are two kinds of main causes discovered of the 10 kV disribution line tripping and landing :Ⅰ.electrical equipment faults including aging lines,faults of Distribution Transformer and overcurrent etc;Ⅱ.the mechanical damage from external force such as disconnected,inline and shock wire and so on made by artificial factor,tree barriar,animal’s destroying,thunder and rain,wind and other natural desasters.On the current condition of the distribution line in the area of Yunjin racecourse,the paper is aimed at taking according precautions that are able to be used under real circumstances,for main causes leading to the 10 kV ditribution line trips and lands,in order thattimes of 10 kV dsribution line tripping and landing will be decreased,the reliabilty of power supply is to be improvedand economic benifits is going to be increased. |
