The power system continues the electric
protection technology
1 continues the electric protection development present situation
The development at full speed of power system constantly puts forward the new requirement to continuing the electric protection, and electronic technology, computer technique and the development at full speed of communication engineering and constantly pouring into the new vigour for the development that continues the electric protection technology therefore it is richly endowed by nature to continue the electric protection technology, were accomplished in the time of 40 one's remaining years follow-on 4 history stages.