Ice covering of overhead ground lines of transmission lines may lead to faults such as broken lines and fallen towers, conductor-to-ground short circuits and so on. In order to solve the ice-covering problem, the non-stop DC deice technology has been proposed, but the induced voltage of the overhead ground line during deice has a serious impact on the DC deice and the transmission system operation, so it is necessary to study the induced voltage and its influencing factors during deice. This paper introduces the overhead ground line non-stop DC deice technology and different forms of deice wiring, using electromagnetic simulation software for deice wiring forms and conductor layout forms of different induced voltages on the ground line simulation calculations. According to the calculation can be divided into sections of grounding, single-ended grounding, U-type wiring, the whole line insulation case of the induced voltage increases; conductor triangular layout of the induced voltage is higher than the conductor is the induced voltage of the horizontal layout of the induced voltage. The reason for this phenomenon is that the wire layout form and deice wiring form affects the unbalance degree of three-phase coupling capacitance, which affects the ground induced voltage.

induced voltage,dc deice,ground line

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