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。 According to the actual working characteristics of the high-power coal shearer manufactured by Shanghai Branch, a leakage detection device based on STM32F107 microprocessor was designed. By using double high-voltage isolation relays and detecting the power supply status of the power circuit, , Improve the reliability of leakage lock device. The field test, the device leakage lock detection accuracy and reliability, for the Shearer power circuit insulation to provide effective detection and protection.