Design of Mine-used Protection Device for Override Trip
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摘要: 根据我国煤矿井下供电系统线路分级多、线路短的特点，分析了井下供电线路出现越级跳闸的原因；采用32位TMS320F2812 DSP为主控处理器，设计了采用反向闭锁式纵联的防越级跳保护装置。实验结果表明，该保护装置可以解决煤矿供电线路的越级跳闸问题，提高了供电系统的可靠性。Abstract: The paper analyzed causes of override trip of underground power supply lines based on characteristics of multi levels and short lines of power supply lines of coal mine underground, designed a reverse locking type longitudinal protection device for override trip with 32-bit TMS320F2812 DSP as main processor. The test results showed that the protection device can solve the problem of override trip of underground power supply lines, and improve reliability of underground power system.
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