Abstract: Electric railway normally adopts phase rotation power supply mode. To prevent short circuit between phases, a neutral section must be set between different feeding section. In order to reduce the capacity of neutral section converter,eliminate power supply dead zone of electric locomotives,compensate negative sequence and reactive current and solve other typical problems in traditional neutral section passing scheme, a novel flexible phase passing equipment was proposed in this paper. By adjusting the output voltage of neutral section converter, the neutral section voltage can shift flexibly from one feeding section to another and power supply dead zone can be eliminated which makes locomotives be able to pass the neutral section without power off. In addition, the neutral section is supplied by series connected inverter and transformer, which has benefits to reduce capacity and cost of the neutral section converter. Furthermore, the rectifier side of the converter adopts three-phase topology to provide negative sequence and reactive current compensation capability. This equipment can be operated as a railway power connector without switch motion. Finally, experiments were carried out to prove the effectiveness and feasibility of the proposed control strategy.