Split type zero flux small electric current sensor for on-line monitoring and charged test of capacitive equipment

The invention discloses a split type zero flux small electric current sensor for on-line monitoring and charged test of capacitive equipment, wherein the zero flux current sensor is designed in a split manner, fragile complementation and output circuit modules are separated from other parts such as a magnetic core, and the fragile complementation and output circuit modules are connected with the other parts through a connecting wire of a terminal strip, so that when the fragile complementation and output circuit modules are damaged, the end screen wire of the equipment is not detached, and breakpoints in the end screen wire are not increased to change the circuit part of the sensor. The sensor disclosed by the invention is simple in structure and easy to implement in the field.