一种“ia”级新型本质安全型电源设计

基金项目:

中国博士后科学基金资助项目（20090461254）

山东科技大学研究生科技创新项目（2017SDKDYC17035）

详细信息

Design of novel intrinsically safe power supply with "ia" grade

College of Electrical Engineering and Automation，Shandong University of Science and Technology， Qingdao 266510, China

摘要: 针对煤矿井下矿用电源工作环境，设计了一种“ia”级新型本质安全型电源。该电源采用全封闭式AC-DC模块，无需专门的隔爆外壳，且具有两重过压保护电路和三重过流保护电路。实验结果表明，该电源在无故障、1个计数故障及2个计数故障情况下发生负载短路时，均没有出现火花，实现了本质安全性能。
- 矿用电源 /
- 本质安全型 /
- “ia”保护等级 /
- 两重过压保护 /
- 三重过流保护
Abstract: According to working condition of mine-used power supply in coal mine underground, novel intrinsically safe power supply with "ia" grade was designed. The power supply uses a fully enclosed AC-DC module to eliminate special flameproof enclosure, and has over-voltage protection circuit of dual redundancy and over-current protection circuit of three redundancy. The experimental results show there is no spark when the power supply load is short circuited under the conditions of no fault, one counting fault and two counting faults, which realizes intrinsic safety.
- mine-used power supply /
- intrinsic safety type /
- "ia" protection grade /
- over-voltage protection of dual redundancy /
- over-current protection of three redundancy