With the increase and capacity upgrade of 500 kV substation

the connection of generation unit and ever dense of 220 kV power grid

the problem of short circuit current spillage of 220 kV grid becomes more and more prominent. In order to control the increase of short-circuit current in the grid

the addition of series reactors in the system can be considered. In this paper

the principles of series reactors to limit the short-circuit currents are briefly described. Then

the advantage and disadvantage on the application of series reactors in Jiangsu power grid is analyzed and summarized through studying the production ability of the serial reactors and operation status of reactors in the existing projects both at home and abroad. With the applications of series reactors in Nanjing Jiangbei power grid（JBPG） to be planned in the Year 2019-2023

application of series reactor limits effectively the short circuit in the grid

maintains close-loop operation of grid and improves operation reliability of the grid. On the basis of the analysis and study

installation of traditional series reactors in JBPG is the control measures of short circuit with feasibility at the present stage.