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Implementation of automatic switching when single main transformer operated in 220 kV substation
Author(s): 
Pages: 80-82
Year: Issue:  15
Journal: RELAY

Keyword:  单台主变运行失压备自投装置;
Abstract: 单主变220 kV变电站正常方式下,主变中压侧110 kV系统不和其它的220 kV变电站的110 kV系统环网运行,当主变110 kV侧失压时,将会造成本站110 kV母线及母线上所接的110 kV变电站全停.针对单主变220 kV变电站的运行特点,我们充分考虑与现有国产设备的兼容性,在对国产现有备自投装置硬件稍加改动的基础上,设计开发出了单主变备自投,并编制了相应备自投装置充电、动作及闭锁方案.目前,该备自投装置已经投产运行两年,运行状况良好.该方案设计在全国尚属首次,应用前景广阔,有普遍的推广意义.
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