Resonance grounding mode meets the requirements of safety and reliability for power network

and has good prospects of application. The problems that capacitive current and ground residual current increase constantly can be solved through adding the traditional arc suppression coil with small capacity and the slave arc suppression coil device of full current compensation arc suppression coil. Based on the basic principle of full current compensation arc suppression coil

this paper proposes the structure of the full current compensation arc suppression coil suitable for distributed installation with master-slave type

and analyzes its structure characteristics and harmonic.The capacity-expansion modification schemes of the full current compensation arc suppression coil with different installation modes are designed

and simulation analyses are conducted. Simulation results show that distributed installation can more effectively reduce the capacitive current and the ground residual current amplitude.