Device for detecting power equipment discharge based on ultraviolet method

The invention discloses a device for detecting power equipment discharge based on an ultraviolet method, comprising a sensor unit, a signal processing unit, a processor unit and a power supply unit, wherein the sensor unit comprises a front-end light-filtering device and a photomultiplier which are correspondingly arranged; the signal processing unit comprises a front-end amplifying circuit, a wave-filtering adjustment circuit, a post amplifying circuit, a pulse discriminating circuit and a digital integrating circuit; the power supply unit comprises a high-voltage power supply module and a circuit power supply module; the high-voltage power supply module is connected with the power end of the photomultiplier; and the circuit power supply module is connected with the related power ends of the signal processing unit and the processor unit. The device not only can qualitatively analyze the discharge condition, but also can quantitatively detect the discharge capacity of the equipment, is convenient for the operators to understand the discharge trend of the equipment and simultaneously provides the basis for evaluating the insulation state of the operating equipment. The device adopts non-contact measurement, thereby greatly improving the security of power detection.