Grounding transformer

Grounding transformers can be classified into oil-filled and dry-type based on the filling medium, and into three-phase grounding transformers and single-phase grounding transformers based on the number of phases. The function of a grounding transformer is to provide an artificial neutral point for systems without a grounded neutral point, facilitating the use of arc suppression coils or small resistance grounding methods. This helps to reduce the magnitude of ground capacitance current during ground short-circuit faults in the distribution network, thereby improving the reliability of power supply in the distribution system.