电解系统供电单点与多点接地影响及防控措施
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摘要
电解槽正常直流供电系统为不接地系统,电解槽中点处理电压为零,但在实际运行中,因受停槽、公共母线压降、电解槽绝缘降低以及搭接物等影响,导致电解槽系统直流电压分布发生变化,进而影响电解槽绝缘水平,出现漏电流、能耗增加、人身伤害或设备损坏事故,所以提前预防,减少接地并重视电解槽接地后处理就显得尤为重要。
The normal DC power supply system of the electrolyzer is an ungrounded system, and the treatment voltage at the midpoint of the electrolysis cell is zero. However, in actual operation, the electrolysis cell is affected by the stop tank, the common bus voltage drop, the reduction of the electrolytic cell insulation, and the lap. The DC voltage distribution of the system changes, which affects the insulation level of the electrolytic cell,causing leakage current, increased energy consumption, personal injury or equipment damage. Therefore, it is particularly important to prevent it in advance, reduce grounding and pay attention to the treatment of the electrolytic cell after grounding.
The normal DC power supply system of the electrolyzer is an ungrounded system, and the treatment voltage at the midpoint of the electrolysis cell is zero. However, in actual operation, the electrolysis cell is affected by the stop tank, the common bus voltage drop, the reduction of the electrolytic cell insulation, and the lap. The DC voltage distribution of the system changes, which affects the insulation level of the electrolytic cell,causing leakage current, increased energy consumption, personal injury or equipment damage. Therefore, it is particularly important to prevent it in advance, reduce grounding and pay attention to the treatment of the electrolytic cell after grounding.
引文
[1]田应莆.大型预焙铝电解槽生产实践[M].长沙:中南大学出版社,2003.
[2]胡格吉夫.略谈铝厂供电与节电[J].轻金属,2001,(1):58-61.
[3]李泽普,王桂范.铝电解漏电的防治[J].轻金属,1999,(8):35-38.
[2]胡格吉夫.略谈铝厂供电与节电[J].轻金属,2001,(1):58-61.
[3]李泽普,王桂范.铝电解漏电的防治[J].轻金属,1999,(8):35-38.