The reliability of the power supply system is crucial for the safety production of coal mines.At present,most coal mines adopt a dual circuit power supply system,which effectively improves the stability and reliability of the power supply system and reduces the failure rate of system lines.Based on the actual situation of A Mine in Shanxi,the power supply equipment of the coal mine was verified,mainly including mobile substations,high-voltage switches,transmission cables,etc.The results indicate that the power supply equipment used in the coal mine can meet normal production needs.
coal mine power supplydouble circuit power supply systemreliabilityequipment calibration
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