Electrical fault spark real-time monitoring method and device
A real-time monitoring and electrical fault technology, applied in the direction of measuring devices, measuring electricity, continuity testing, etc., can solve problems such as affecting the reliable operation of electrical equipment, generating sparks, etc., to achieve extensive practicability, reliable monitoring, and good monitoring effects.
Inactive Publication Date: 2015-12-09
CHINA UNIV OF MINING & TECH +1
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Problems solved by technology
At present, there is no good fault monitoring method, especially some electrical faults with poor contact and intermittent on and off, which will not only affect the reliable operation of electrical equipment, but also generate sparks and detonate explosive substances, especially in mine environments. Open circuit spark is an important factor to detonate gas
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[0018] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0019] Such as figure 1 As shown, the electrical fault spark real-time monitoring device of the present invention is mainly composed of grid current detection circuit 1, related harmonic detection circuit 2, electromagnetic field detection circuit 3, microprocessor 4, display 5, alarm circuit 6, communication circuit 7; The input end of processor 4 is connected with the output end of grid current detection circuit 1, relevant harmonic detection circuit 2 and electromagnetic field detection circuit 3 respectively, and the output end of microprocessor 4 is respectively connected with display 5, alarm circuit 6 and communication circuit 7 The input terminals are connected; the microprocessor 4 adopts single-chip microcomputer ATMEGA16 and has 8 A / D conversion circuits, which can meet the needs of multi-parameter detection.
[0020] Such as figure 2 As shown...
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Provided are a method and device for monitoring electrical fault sparks in real time. The device comprises a power grid current detection circuit (1), a relevant harmonic detection circuit (2), an electromagnetic field detection circuit (3), a microprocessor (4), a display (5), a warning circuit (6) and a communication circuit (7). The outputs of the power grid current detection circuit (1), the relevant harmonic detection circuit (2) and the electromagnetic field detection circuit (3) are connected to the input of the microprocessor (4), and the occurrence of electrical fault sparks is comprehensively judged according to the change in the power grid current, the harmonic analysis and an electromagnetic field signal. The fault location is determined by performing locating, in the case of avoiding the influence generated due to the fact that the load of surrounding electrical appliances is suddenly increased, the electrical appliance sparks are reliably monitored, and a condition is created for eliminating the fault in time. Thus, the present invention can solve the problem of monitoring and locating an electrical fault due to sparks generated because of poor contact in real time, can not only monitor and find the electrical spark fault in time to guarantee electrical safety, but also can be beneficial for guaranteeing the monitoring of the secure environment of hazardous areas. The method of the present invention is simple in structure, reliable in operation, and good in monitoring effect.
Description
technical field [0001] The invention relates to a method and device for real-time monitoring of sparks, in particular to a method and device for real-time monitoring of electrical fault sparks suitable for electrical fault diagnosis in industrial and mining enterprises or safety monitoring of explosive hazardous environments. technical background [0002] The diagnosis of electrical open circuit fault is of great significance to ensure the safe operation of electrical equipment. At present, there is no good fault monitoring method, especially some electrical faults with poor contact and intermittent on and off, which will not only affect the reliable operation of electrical equipment, but also generate sparks and detonate explosive substances, especially in mine environments. The breaking spark is an important factor to detonate the gas. Therefore, real-time monitoring of electrical fault sparks is an urgent problem to be solved. Contents of the invention [0003] Techni...
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IPC IPC(8): G01R31/02
CPCG01R31/02G01R31/54
Inventor 童紫原童敏明董海波
Owner CHINA UNIV OF MINING & TECH