| This paper analyses the current states of the arc-suppression-coil (ASC) grounding system in the distribution networks at first and proposes a new type combined arc suppression coil with shunt reactor. The main circuit of arc suppression coil and the structure of automatic control system are elucidated. In addition, its dynamic tuning method and working mode are discussed. Analyzing the merits and demerits of the line selection methods in existence and considering the structure of combined arc suppression coil with shunt reactor, this paper proposes a synthetic line selection method, which is fit for the new arc suppression system. And then, the control strategy and whole control flow of the control system are explained in detail. The experiment and the field operation instance indicate that combined arc suppression coil with shunt reactor is able to meet the field demand completely. |
