Non-stop power ice melting device based on the cooperation of grounding reactor and adjustable reactor

In this paper, using the characteristics of asymmetrical short circuit of single-phase grounding system, the zero-sequence current path does not affect the positive-sequence current, so a zero-sequence circuit with very small zero-sequence impedance is constructed, and the non-stop ice melting can be achieved by adjusting the impedance of the zerosequence circuit, And designed a zero-sequence reactance device according to the parameters of a certain pilot circuit.