Device for detecting power equipment discharge based on ultraviolet method

Abstract

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.

Description

Electric equipment discharge detection device based on ultraviolet method technical field The invention relates to the field of electric equipment discharge detection, in particular to an electric equipment discharge detection device based on an ultraviolet method. Background technique Detecting the discharge of high-voltage equipment can effectively understand the insulation state of the equipment and provide reliable reference data for fault detection. Therefore, the research on discharge detection of high-voltage equipment has important academic significance and provides a scientific basis for the operation and maintenance of the power sector. The partial discharge of the detection equipment is the main means to evaluate the insulation status. At present, the means of online detection of partial discharge mainly include infrared imaging method, pulse current method, ultrasonic method and ultra-high frequency method. These detection methods have their own advantages in d...

AI Technical Summary

Problems solved by technology

The ultraviolet detection technology of corona discharge has its unique advantages and a wide range of applications. However, the current main commercial instrument ultraviolet imager cannot obtain accurate values ​​and long-term Insufficiencies such as time work and absolute sensitivity are not high, and cannot be used in large areas

Images