Multiple-factor detection system for aging condition of fuse and assessment method for aging condition

A technology of aging state and detection system, which is applied in the direction of instruments, measuring electronics, measuring devices, etc., can solve the problems of being backward, unable to detect the aging state of fuses in time, and not paying attention to the aging state of fuses, etc., and achieve the effect of enhancing safety

Inactive Publication Date: 2010-07-14
LINGAO NUCLEAR POWER +2
View PDF0 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main purpose of these inspections is for manufacturers to perform performance testing and screening of new fuse products, and do not pay attention to the aging state of fuses, that is, the current research on

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multiple-factor detection system for aging condition of fuse and assessment method for aging condition
  • Multiple-factor detection system for aging condition of fuse and assessment method for aging condition

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Such as figure 1 The multi-factor detection system for the aging state of the fuse shown mainly includes

[0031] Adjustable constant current source 1, which is used to provide current for the fuse 10 under test. In specific applications, according to different capacity grades of fuses, the range and accuracy of the adjustable constant current source can be adjusted, and at the same time according to different test requirements , The current output signal can be adjusted. In this embodiment, the output waveform of the constant current source can be step, sine (power frequency), pulse, etc.;

[0032] Adjustable thermostat 2, which is used to simulate the field working conditions of the fuse. In order to accurately simulate the field working conditions of the fuse, the thermostat 2 should have enough space. In this embodiment, the range of the adjustable thermostat can be selected At 10~70℃, with an accuracy of 1℃, the box can be made of transparent material; a test board is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a multiple-factor detection system for the aging condition of a fuse. The system comprises an adjustable constant current source, an adjustable thermostat, a temperature acquisition device, a resistance measuring instrument and a PC machine, wherein the adjustable constant current source is connected in series with the fuse to be detected; the adjustable thermostat is used for simulating the on-site operating condition of the fuse to be detected; the resistance measuring instrument is used for measuring the resistance data of the fuse to be detected in the thermostat periodically or in real time; the PC machine is connected with an output end of a multi-channel acquisition card and used for receiving temperature data acquired by the multi-channel acquisition card in real time, analyzing the temperature rise characteristic of the fuse, and judging whether the fuse is aged or not by combining the resistance data transmitted by the resistance measuring instrument. The multiple-factor detection system for the aging condition of the fuse can measure purchasing fuses, stock fuses and fuses in service; and through the system, the use safety of the fuse can be effectively enhanced.

Description

technical field [0001] The invention relates to a fuse detection device, in particular to a system and method for detecting the aging state of a fuse. Background technique [0002] The fuse is a kind of current protector made according to the principle of breaking the circuit by melting the melt with the heat generated by itself after the current exceeds the specified value for a certain period of time. 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 influence of the current and the external environment, it will inevitably age. The aging of the fuse mainly includes the aging of the fuse and the aging of the electrode. The main mechanism of the former includes metal electromigration, silver ion migration, solder joint melting, metal evaporation, alloy effect of fl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R31/00
Inventor 石颉施海宁姚建林金心明李建文涂丰盛
Owner LINGAO NUCLEAR POWER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap