Device for collecting high-potential corona current

The invention discloses a device for collecting high-potential corona current, and belongs to the technical field of high-pressure gas discharge measurement. According to the technical scheme, the device comprises a current probe, a data acquisition card, a measuring computer, a first photoelectric converter, a second photoelectric converter and a control computer, wherein the current probe, the data acquisition card, the measuring computer, the first photoelectric converter, the second photoelectric converter and the control computer are connected in sequence; the measuring computer is connected with the data acquisition card and the first photoelectric converter by adopting dual cables respectively; the second photoelectric converter is connected with the control computer by using dual cables. The device has the beneficial effects of small device size, high reliability, high stability, high linearity, high practicability, convenience in installation, and good shell shielding and heat-dissipating effects; the current probe can be placed on a high-voltage circuit for acquiring data under the condition of normal running of the circuit.