期刊论文

Study on Fusing Characteristic Testing System of the Fuse with the Constant Current

中文

电工技术

1002-1388

2018

15

139-142+146

10.3969/j.issn.1002-1388.2018.15.050

2014BAH28F04:国家科技支撑计划 15K009:湖南省教育厅科学研究项目 17K004:湖南省教育厅科学研究项目

本校为第一机构

目前的保险管熔断特性测试仪大多采用低压大电流的模拟测试方式,与实际应用环境相差很大,不利于测试防爆特性,导致保险管应用过程中出现偏差。为使保险管熔断特性测试参数更接近实际,研究了一种阶梯阻抗变流电路＋预恒流测试的保险管熔断特性测试方法,并采用STM32F103芯片为控制器设计了保险管熔断特性测试系统。试验结果表明,该系统不仅能在市电环境下直接测量,使测试环境接近应用环境,而且能测试保险管的熔断时间与防爆特性,输出电流范围涵盖0.03~50A,具有导通角开启可控、快速变电切换、记录熔断时间和精确输出测试电流的功能。

At present, most fusing characteristic of the fuse testers use low voltage large current simulation testing meth od. They have a great difference in practical application environment and they can＇t test explosion-proof peculiarity of the fuse, which leads to deviation in the practical application. In order to the realistic needs for testing fusing characteristic of the fuse, a method of stepped impedance converter circuit with the constant current in advance to test fusing characteristic of the fuse was proposed. The STM32F103 chip was used as...