Analysis and treatment measures of cold spray water fault in a converter station valve
A certain converter station experience an excessive discharge fault in the spray water pool.The low level of the spray pool affects the cooling margin of the valve water cooling system and can lead to serious DC blocking due to high cooling water inlet valve temperatures.Through fault analysis,the cause of the sensor mechanical jamming led to abnormal measurements and a defect in the spray pool discharge control logic.Regular maintenance of the sensor and setting of flow abnormal alarms were proposed as corrective measures to achieve early detection of abnormalities.
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