煤矿井下软启动器本安先导电路的改进设计
严树勋;杨维义
【期刊名称】《工矿自动化》 【年(卷),期】2012(038)008
【摘要】The paper introduced working principles and design of intrinsic safety type pilot circuit, and described basic principle of intrinsic safety type pilot circuit designed by relay isolated method, and indicated the circuit has problems of self starting and instable low-power. It introduced improved design of a pilot circuit controlled by photoelectric coupler isolation. The practical application showed that working current and the maximum short circuit current of the improved pilot circuit was less than the pilot circuit with relay control and hasn't inductor and capacitance, so its performance is more stable and action is more reliable.%介绍了本安先导电路的原理和设计原则,阐述了采用继电器隔离方法设计的本安先导电路的基本原理,指出了该本安先导电路存在自行启动和低电压启动不稳定的问题,介绍了一种采用光电耦合器隔离控制的本安先导电路的设计.实际应用表明,改进后的本安先导电路工作电流和最大短路电流均小于由继电器控制的本安先导电路,不存在电感电容等储能元器件,电路性能更稳定,动作更可靠.
【总页数】3页(121-123)
【关键词】软启动器;本质安全型;先导电路;光电耦合器;继电器隔离 【作者】严树勋;杨维义
【作者单位】中煤科工集团常州自动化研究院,江苏常州 213015;中煤科工集团常州自动化研究院,江苏常州 213015 【正文语种】中文 【中图分类】TD611 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_industry-mine-automation_thesis/0201242325811.html 【相关文献】
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煤矿井下软启动器本安先导电路的改进设计
