DC Transformer Split Core Ground Current Sensor

Transformer core ground sensor(split-core lock catch type) specifically designed for core and clamp grounding current monitoring devices, this sensor enables online, continuous monitoring of grounding fault currents (range: 100 μA to 700 mA). It provides real-time feedback on equipment insulation status, promptly detecting issues such as multiple grounding points in the core, insulation moisture/damage, and foreign objects in the housing, thereby providing a basis for condition-based maintenance. The sensor employs a high initial magnetic permeability core, deep negative feedback, and multi-layer shielding technology to achieve fully automatic compensation, ensuring the core operates in an ideal zero flux state. It features high precision (phase error ≤ 0.01°), minimal temperature drift, and strong interference resistance, fully meeting the precise measurement requirements in the complex environments of power plants.