扩大内桥接线方式二次回路问题
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摘要
目前新建、扩建变电站中,扩大内桥接线方式广泛使用。通过对扩大内桥接线方式下2号主变压器电压切换回路进行分析,发现其回路存在造成电压并列的隐患,为消除隐患对回路进行改进。现场试验结果表明:改进后的主变压器电压切换回路成功杜绝了原有隐患,具有良好的工程实用价值。
Expanded inter-bridge connection mode is widely used in the new and expanded substation at present. Through the analysis of No. 2 main transformer voltage switch circuits, finds out the circuit has hidden trouble which can cause voltage paralleling. In order to eliminate the hidden trouble, the circuit was improved. The field experimental results show that : the modified main transformer voltage switch circuits succeed to eliminate the original hidden trouble, has better engineering practical value.
Expanded inter-bridge connection mode is widely used in the new and expanded substation at present. Through the analysis of No. 2 main transformer voltage switch circuits, finds out the circuit has hidden trouble which can cause voltage paralleling. In order to eliminate the hidden trouble, the circuit was improved. The field experimental results show that : the modified main transformer voltage switch circuits succeed to eliminate the original hidden trouble, has better engineering practical value.
引文
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[6]秦传明,黄璐,冯秋辉,涂刚,朱可.扩大内桥接线备自投和TV并列回路的分析[J].自动化应用,2014,(8):103-106
[2]钱银其.110 kV变电站典型设计[J].江苏电机工程,2007,26(5):59-62
[3]姚以沛、张敏.内桥接变电站110 kV TV二次回路出现的问题及解决方法[J].科技情报开发与经济,2010,20(27):211-213
[4]郭碧媛、张丰.110 kV扩大内桥接线备自投逻辑分析[J].电力系统保护与控制,2010,38(7):124-126
[5]李聪.变电站扩大内桥主接线的二次回路分析[J].企业科技与发展,2011,21:41-43
[6]秦传明,黄璐,冯秋辉,涂刚,朱可.扩大内桥接线备自投和TV并列回路的分析[J].自动化应用,2014,(8):103-106