一种新型消弧线圈仿真研究

Most of our country's medium voltage distribution networks use the way of neutral point to earth via arc suppression coil.With the development of the distribution network, the increase of the non-linear loads and the wide use of the power electronic equipment in distribution network, the harmonic and active component of the ground fault current also enhances largely. So much great active and harmonic component can also maintain the arc, cause a high step voltage. In this paper a new arc suppression coil is proposed, and the equivalent circuit of this arc suppression coil is detailedly analysed and deduced. Prove the correctness and effectiveness of the theoretical analysis and realization.