Investigation on Earthing of Low-Voltage Grid
This paper deals with the investigation on the status quo of power supply and distribution of the low-voltage grid, in the paper, the authors, through the investigation, clarify the objective causes of the earthing faults and intentions of the manual earthing (mainly neutral-point earthing), analyze the electric characteristics of the two modes of earthing, point out the dangers of the earthing of power grid, find out the fundamental causes of the failure of creepage protector for the residual current, unveil a huge shared geo-electric system consisted of many manual earthing and fault earthing, and probe into the possible consequences of the two modes of earthing that universally exist; in addition, the authors put forward a new thought that can guarantee the grid to be operated in the air and cleaned independently so as to supply power economically, safely, steadily and cleanly after releasing the manual earthing, monitoring system and fault earthing thereof.
Low-voltage grid of power distribution fault earthing manual earthing neutral point shared geo-electric system creepage protection earthing of one grid through different leads and earthing loss
Yu Shigen Yu Buyang
Shandong Heze Power Company,Address: 659 Caozhou Road,Heze City,Shandong Province; Postal Code: 274000
国际会议
2008 China International Conference on Electricity Distribution (CICED 2008)(2008中国国际供电会议)
广州
英文
1-7
2008-12-10（万方平台首次上网日期，不代表论文的发表时间）