中文摘要：

根据天地上海分公司生产的大功率采煤机的实际工作特点,设计了一种基于STM32F107微处理器的漏电闭锁检测装置,该检测装置通过采用双高压隔离继电器、检测动力回路的供电状态等措施,提高了漏电闭锁装置的可靠性。经现场测试,该装置漏电闭锁检测动作准确可靠,可为采煤机动力回路的绝缘状况提供有效的检测和保护。

英文摘要：

According to the actual work characteristics of high-power shearer which produced by Tiandi Science and Technology Shanghai Branch,the Leakage blocking detection device for shearer based on the STM32F107 microcontroller was designed.Through the use of dual-pressure isolation relays, power detection circuit power supply status and other measures,the reliability of leakage blocking device was improved.After application of the test site,the detection device detects leakage blocking action is accurate and reliable,It can provide effective detection and protection for insulation condition shearer power circuit.