This paper proposed a design scheme for a digital anti-override trip protection system for coal mine power supply in response to the problem of override trip in coal mine power supply systems.The system adopts a hierarchical sampling and centralized control structure system,using on-site intelligent devices to collect the operating status signals of the power supply system.After digital processing,the processed data is transmitted to the protection and measurement device through a point-to-point fiber optic network.The protection and measurement device automatically retrieves the system database based on the obtained data to determine whether the power supply system has faults.This scheme can effectively determine whether the power supply system has tripped,and has certain application value.
关键词
煤矿供电系统/数字化/防越级跳闸保护/点对点光纤网络
Key words
coal mine power supply system/digitization/anti-override trip protection/point-to-point fiber optic network
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