供配電系統外文翻譯-其他專業(編輯修改稿)

　

【文章內容簡介】 ses account for more sizable proportion at the total price of the equipment. It is very remarkable to bring the economic benefits by reducing the insulating level. Usually such system adopt the neutral directly grounding and adopt the autoreclosing to guarantee power supply reliability. On the contrary, the system which is lower in the voltage adopts neutral none grounding to raise power supply reliability. So it is an important subject to make use of new type earth device to apply to the distribution work under considering the situation in such factors of various fields as power supply reliability, safety factor, overvoltage factor, the choice of relay protection, investment cost, etc. The main work of this paper is to research and choice the neutral grounding mode of the l0kV distribution work. The neutral grounding mode of the l0kV work mainly adopts none grounding, grounding by arc suppressing coil, grounding by reactance grounding and directly grounding. The best grounding mode is confirmed through the technology parison. It can help the work run in safety and limit the earth electric arc by using autotracking pensate device and using the line protection with the detection of the sensitive small ground current. The paper introduces and analyzes the characteristic of all kind of grounding modes about l0kV work at first. With the parison with technological and economy, the conclusion is drawn that the improved arc suppressing coil grounding mode shows a very big development potential. Then, this paper researches and introduces some operation characteristics of the arc suppressing coil grounding mode of the l0kV distribution work. And then the paper put emphasis on how to extinguish the earth electric arc effectively by utilizing the resonance principle. This paper bines the development of domestic and international technology and innovative achievement, and introduces the puter earth protection and autotracking pensate device. It proves that the improved arc suppressing coil grounding mode have better operation characteristics in power supply reliability, personal security, security of equipment and interference of munication. The application of the arc suppressing coil grounding mode is also researched in this paper. Finally, the paper summarizes this topic research. As a result of the domination of the arc suppressing coil grounding mode, it should be more popularized and applied in the distribution 4 work in the way of thinking, project and conclusions in this thesis have effect on the research to choose the neutral grounding mode not only in I0kV distribution work but also in other power system.. The basic function of the electric power system is to transport the electric power towards customers. The l0kV electric distribution is a key point that connects the power supply with the electricity using on the industry, business and dailylife. For the electric power, all costumers expect to pay the lowest price for the highest reliability, but don39。t consider that it39。s selfcontradictory in the coexistence of