Standard discharge quantity signal generating device for oscillation wave partial discharge test

Abstract

The invention discloses a standard discharge quantity signal generating device for an oscillation wave partial discharge test. The device comprises a controller, a power source management module, a battery module, a button module, a D/A signal conversion module, a voltage boosting module, an analog switch module, a standard capacitor module and a signal output interface; the power source management module is connected with the controller and the battery module; the battery module supplies power to each module; the D/A signal conversion module is connected with the voltage boosting module; thecontroller, the D/A signal conversion module and the boost boosting module are connected with the analog switch module; the analog switch module is connected with the standard capacitor module; and the standard capacitor module is connected with the signal output interface. With the standard discharge quantity signal generating device provided by the technical schemes of the device of the invention adopted, the periodic output of standard electric quantity pulse signals is realized; discharge quantity precision is high; an output range is wide; and a cable oscillation wave fault detection system can be accurately verified. The standard discharge quantity signal generating device can be used to verify the performance and accuracy of an oscillation wave partial discharge test system.

Description

technical field [0001] The invention relates to the technical field of signal generation, in particular to a standard discharge signal generation device for oscillating wave partial discharge testing. Background technique [0002] At present, there are several cable oscillatory wave detection systems on the market, and some researches on the mechanism of oscillatory wave fault defect detection, but for the verification of the performance and accuracy of the oscillatory wave detection system itself, as well as the anti-interference and positioning quantitative capabilities, There is no relevant research results yet, so the reliability and scientificity of using the oscillatory wave partial discharge detection system is not high, and it is difficult to meet the needs of market promotion. Therefore, a device that can output standard partial discharge pulse signals is designed for the calibration of the oscillatory wave detection system itself. Most of the existing related produ...

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Problems solved by technology

[0002] At present, there are several cable oscillatory wave detection systems on the market, and some researches on the mechanism of oscillatory wave fault defect detection, but for the verification of the performance and accuracy of the oscillatory wave detection system itself, as well as the anti-interference and positioning quantitative capabilities, There is no relevant research results yet, so the reliability and scientificity of using the oscillatory wave partial discharge detection system is not high, and it is difficult to meet the needs of market promotion

Therefore, a device that can output standard partial discharge pulse signals is designed for the calibration of the oscillatory wave detection system itself. Most of the existing related products are aimed at the calibration of partial discharge live detection or online monitoring devices such as transformers and GIS, and are not suitable for cables. Calibration of Oscillating Wave Partial Discharge Test System

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