Principle of Recovery Inrush in Operating Transformer and Its Influence on Relay Protection

机译：运行变压器回馈涌流的原理及其对继电保护的影响

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Mal-operation of the transformer differential protection will occasionally take place after the removal of the external fault. Based on the transformer transient mathematical model, the transient process during the isolation of transformer external fault is analyzed according to flux variation and the corresponding formula is obtained. Then the principle of recovery inrush in operating transformer is studied in depth. Finally, considering the piecewise magnetization characteristics are linear, the models of transformer during an external fault are built for simulation, and the influence of recovery inrush on relay protection is analyzed.

机译：排除外部故障后，有时会发生变压器差动保护的误动作。基于变压器暂态数学模型，根据磁通量变化对变压器外部故障隔离过程中的暂态过程进行了分析，得到了相应的公式。然后深入研究了运行中变压器的涌流恢复原理。最后，考虑到分段励磁特性是线性的，建立了外部故障时变压器的仿真模型，并分析了涌流对继电保护的影响。

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来源
《ICCEE 2010;International conference on computer and electrical engineering》|2010年|p.616-620|共5页
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作者
LI Lixin; HE Xun;
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原文格式 PDF
正文语种
中图分类计算技术、计算机技术;计算技术、计算机技术;
关键词
transformer; recovery inrush; transformer protection; maloperation;

机译：变压器;恢复涌流变压器保护;误操作;

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2. A digital scheme to minimize the influence of transformer magnetizing inrush or CT saturation on line protection [J] . Huang Chun, Jiang Yaqun, Liu Penghui, International journal of electrical power and energy systems . 2018,第OCTa期

机译：一种数字方案，可最大程度减少变压器励磁涌流或CT饱和对线路保护的影响
3. Influence of voltage transformers on operating conditions of ground-fault protection system for unit-connected generator [J] . Mieczystaw, Zielichowski, Marek Fulczyk International Journal of Electrical Power & Energy Systems . 1998,第5期

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4. Principle of Recovery Inrush in Operating Transformer and Its Influence on Relay Protection [C] . LI Lixin, HE Xun International conference on computer and electrical engineering . 2010

机译：操作变压器中恢复原理及其对继电保护的影响
5. Simulation and evaluation of digital protection relay for power transformer applications. [D] . Guo, Yong. 1997

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6. Control of the operate and release time of relays [O] . William Wagman 1963

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7. Influence of distributed generation on the protection principles of a 70 kV/15 kV transformer in antenna: the zero-sequence over-voltage protection U0> [O] . González de Miguel Carlos, Wijnhoven Thomas, Driesen Johan 2014

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Principle of Recovery Inrush in Operating Transformer and Its Influence on Relay Protection

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