Abstract: Compact voltage-sharing configuration is an urgent demand for the dead tank-type multi-break vacuum circuit breakers (VCBs). In order to solve the problems of the small compact insulation space and the uneven voltage distribution in the tank-type multi-break VCBs, the paper proposes a new voltage self-sharing structure of the special integrated vacuum interrupters for series-connection (SIⅥ), which consists of the field grading shield (FGS), ring-type ceramic capacitors (RCC) and solid insulation integration. The RCC is parallelly connected to the sealing ring of the main shield so that the voltage sharing of the main shield floating potentials and between those breaks can be controlled. The insulation configuration of the SIⅥ is obtained with the electric field analysis and optimization. The circuit model of the dynamic voltage distribution is established with the dynamic charge compensation (DCC) between the absorbed charge of the main shield and the post arc charge of the contacts. The principle of the voltage self-sharing with DCC is analyzed. The study indicates that the SIⅥ can realize the dynamic voltage self-sharing of the main shield and between the breaks. The feasibility of the SIⅥ is preliminarily illustrated, which provides a new structure and idea for the design of the special integrated vacuum interrupters for ultra-high voltage compact tank-type multi-break VCBs.