Abstract
In this paper, combined with modern problems that exist in power grids, power grids and the modern trend of development, introduced a series capacitor and the need for compensation in the power grid in a good economic social benefits. Series compensation installations by the capacitors, metal oxides nonlinear resistors, circuit breakers bypass, damping devices, and other major electrical components, articles on the main electrical equipment and design features of the indicators that the January 1, and some simple Calculated as the carrier of a capacitor that the selection process. At the same time on all electrical equipment in the process of installing the necessary attention to the matter have done the necessary explanations. Series capacitor can increase the compensation of reactive power lines and improve the client's supply stability, to strengthen the grid control, resource conservation, power transmission system will play an increasingly important role. 【Key words】series capacitor compensation; metal oxide nonlinear resistance; reactive power