Cable partial discharge detection device
A partial discharge detection and cable technology, which is applied in the direction of testing dielectric strength, etc., to achieve the effect of simple structure, accurate detection and accurate detection
Active Publication Date: 2015-05-13
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD +1
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[0005] Based on this, it is necessary to provide a simple structure, accurate detection, and low detection cost detection device for partial discharge detection of power cables, which is currently not available. cable partial discharge detection device
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[0013] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to the drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.
[0014] Such as figure 1 , figure 2 As shown, a cable partial discharge detection device includes an oscillatory wave voltage generation module 100, a signal acquisition module 200 and an analysis control module 300, the analysis control module 300 has built-in partial discharge analysis software, and the oscillatory wave voltage generation module 100 The two ends are respectively connected to the two ends of the cable to be tested, the signal acquisition module 200 is connected in parallel with the cable to be tested, and the analysis control module 300 is connected to the oscillatory wave voltage generating mod...
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The invention provides a cable partial discharge detection device. The cable partial discharge detection device comprises an oscillation wave voltage generation module, a signal acquisition module and an analysis control module. Oscillation wave voltage is generated by the oscillation wave voltage generation module and applied to a cable to be detected, under the action of the oscillation wave voltage, a pulse current signal is generated by the partial discharge portion of the cable to be detected, the pulse current signal is acquired by the signal acquisition module to generate acquisition data, the acquisition data are sent to the analysis control module and analyzed by the analysis control module according to built-in partial discharge analysis software, and then the partial discharge detection result of the cable to be detected is acquired. The whole device is simple in structure and can actually simulate the environment of the operating conditions of the cable to be detected, no complex and huge-size equipment is needed, the partial discharge conditions of the cable can be detected easily and accurately, and thus the cable partial discharge detection device is simple in structure, accurate in detection and low in detection cost.
Description
technical field [0001] The invention relates to the technical field of power cables, in particular to a cable partial discharge detection device. Background technique [0002] In recent years, the proportion of power cables used in the power grid has gradually increased, but cable safety accidents caused by cable insulation defects have occurred from time to time, resulting in huge economic losses. Therefore, ensuring the safe operation of cables has become a key concern of the power supply department. It has been confirmed by research that the partial discharge characteristics of the cable can reflect its insulation state, so partial discharge detection has become the main means of detecting the insulation state of power cables. Partial discharge detection under oscillatory wave voltage is widely used at home and abroad because it has good equivalence with power frequency voltage detection and will not cause damage to the cable under test. This detection can not only detect...
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IPC IPC(8): G01R31/12
Inventor 陆国俊熊俊叶加骅何志雄陈旭恒敖昌民李汉豪
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD