双卷变压器平衡绕组回路分析及其对继电保护的影响
发布时间:2019-06-04 07:36
【摘要】:工程中部分忽视平衡绕组的做法给平衡绕组双卷变压器的安全运行带来了隐患。因此,在总结平衡绕组双卷变压器参数录入的基础上,分析平衡绕组对正序、零序回路的影响,研究了平衡绕组对变压器抗短路能力及继电保护的影响。修正并完善了与平衡绕组双卷变压器相关的继电保护整定计算原则,从继电保护角度保证了平衡绕组双卷变压器及电网的稳定运行。
[Abstract]:The partial neglect of balanced winding in the project brings hidden trouble to the safe operation of balanced winding double-coil transformer. Therefore, on the basis of summing up the parameter input of balance winding double coil transformer, the influence of balance winding on positive sequence and zero sequence loop is analyzed, and the influence of balance winding on short circuit resistance and relay protection of transformer is studied. The setting calculation principle of relay protection related to balanced winding double-coil transformer is modified and perfected, and the stable operation of balanced winding double-coil transformer and power grid is guaranteed from the point of view of relay protection.
【作者单位】: 广西电网电力调度中心;
【分类号】:TM41;TM77
本文编号:2492570
[Abstract]:The partial neglect of balanced winding in the project brings hidden trouble to the safe operation of balanced winding double-coil transformer. Therefore, on the basis of summing up the parameter input of balance winding double coil transformer, the influence of balance winding on positive sequence and zero sequence loop is analyzed, and the influence of balance winding on short circuit resistance and relay protection of transformer is studied. The setting calculation principle of relay protection related to balanced winding double-coil transformer is modified and perfected, and the stable operation of balanced winding double-coil transformer and power grid is guaranteed from the point of view of relay protection.
【作者单位】: 广西电网电力调度中心;
【分类号】:TM41;TM77
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,本文编号:2492570
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