Trouble Analysis and Measures of Fengjing Converter Station Within the Internal Cooling Water Main Circulating Pump Switch
Internal cooling water system is the main equipment of circulating pump converter station. Main circulating pump drive cooling water {low in the entire internal water cooling system, the heat in the working con- verter valve has been generated to outdoor cooling equipment to complete hot and cold exchange of the convert er valve and outdoor cooling equipment. This paper introduced work principle of the main circulation pump switch of 500kV Fengjing converter station cooling water system. Through depth troubleshooting of the valve cooling system, analyzes the master and charged relationship with internal water cooling system, control sys- tem input and output relationship, switches poor risks set in the unreasonable logic and anti-jamming, and ap- propriate corrective measures. Propose to increase the capacity of inverter DC side of the flat wave capacitor or to connect external smoothing capacitor to prevent the inverter to restart due to the exchange perturbation and frequent cutting pump which increase the potential causes of accidents .
500 kV converter stationswithin the cooling water systemmain circulating pumptrouble analy- sisswitching logic
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