PRESENT SITUATION OF SHORT CIRCUIT CURRENT CONTROL IN SHANGHAI POWER GRID AND COUNTERMEASURES

The general situation of Shanghai power grid is briefly described. The evolutionary process and reason of the short circuit current in Shanghai power grid from 1997 to 2004 are analyzed and corresponding control measures are presented. The existing problems of the power grid and the methods to control the short circuit current are discussed. According to the practical condition of Shanghai power grid some countermeasures and suggestions are put forward.