Fuse life characteristic data test and evaluation system and evaluation method thereof

A technology of characteristic data and evaluation system, applied in instruments, fuse testing, measuring devices, etc., can solve the problem of fuse overage service, and achieve the effect of ensuring safe and reliable operation, avoiding overage service, and ensuring fidelity

Active Publication Date: 2010-12-15
LINGAO NUCLEAR POWER +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are few research reports on the life evaluation of fuses, w

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  • Fuse life characteristic data test and evaluation system and evaluation method thereof
  • Fuse life characteristic data test and evaluation system and evaluation method thereof
  • Fuse life characteristic data test and evaluation system and evaluation method thereof

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Embodiment Construction

[0022] Preferred embodiments of the present invention will be described in detail below in conjunction with accompanying drawings:

[0023] Such as figure 1 As shown, the fuse life feature data test and evaluation system of the present invention is mainly composed of a test module 1, a data acquisition module 2, a life evaluation module 3, a display module 4, a storage and printing module 5 and a keyboard input module 6, wherein the test module 1 It is mainly used to provide a simulated test environment for a fuse group formed by multiple series-connected fuses to be evaluated. It is mainly composed of a central control unit, a power supply unit, a sampling unit, a detection and isolation unit, a drive unit and an execution unit. In the present invention, the preferred implementation of the test module 1 can be referred to the invention patent of the applicant with the application number 201010003668.3. At the same time, the test module 1 also has the ability to automatically ...

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Abstract

The invention relates to a fuse life characteristic data test and evaluation system, which comprises a test module, a data collecting module, a life evaluating module and a display module, wherein the life evaluating module calculates an integral accelerating factor and a corresponding mean running time in an accelerated stress condition when the fuses reach each selected cold-state resistance value and when a fusion or a test ends, and the integral accelerating factor and the corresponding mean operating time are converted into the life of the fuse in a normal operating current condition. In the fuse evaluation system, by setting a cold-state resistance value for each phase of the fuse, the time and the corresponding melt temperature when each fuse reaches corresponding cold-state resistance value and when the fusion or the test ends can be observed, recorded and calculated statistically to obtain a mean running time; and simultaneously, the accelerating factor of each phase is calculated so that the verisimilitude of the life evaluation result of the fuse can be guaranteed, the problem of over-age service of the fuse is avoided, and the reliable and safe running of electrical equipment and electrical lines is guaranteed.

Description

technical field [0001] The invention relates to a fuse life feature data evaluation system and an evaluation method thereof. Background technique [0002] A fuse is an overcurrent protection device. When in use, connect the fuse in series in the protected circuit. When the current of the protected circuit exceeds the specified value, and after a certain period of time, the heat generated by the melt itself will fuse the fuse, disconnect the circuit, and play a protective role. . Fuses are widely used in low-voltage power distribution systems, control systems, and electrical equipment. As short-circuit and over-current protection, fuses are one of the most commonly used protection devices. [0003] During the use of the fuse, due to the current flowing through itself and the influence of the external environment, it will inevitably undergo aging degradation, which will change the protection characteristic curve of the fuse and affect its service life. Fuses are mainly comp...

Claims

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Application Information

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IPC IPC(8): G01R31/07G01R31/74
Inventor 石颉姚建林施海宁
Owner LINGAO NUCLEAR POWER
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