变压器差动保护实验面板的研究设计

Research and Design of Transformer Differential Protection Experiment Panel

继电保护实验对学生理解和掌握变压器差动保护的原理十分重要。但由于微机保护装置不能很好体现继电保护的整个动作过程,学生对于微机保护装置的内部动作原理也就难以理解和掌握。因此,借助虚拟仪器,并根据变压器微机差动保护的新原理,构建了一个变压器微机差动保护实验模型。利用LabVIEW虚拟仪器提供的功能进行编程与程序的运行,建立了一个比较容易理解的实验面板界面。结果表明,该实验面板可以帮助学生更好地理解变压器差动保护原理。

The experiment of relay protection is significant for students to learn and master the principle of transformer differential protection.Due to the micro-computerized protection device cannot reflect the whole action process of the relay protection very well;and the principle of internal action of micro-computerized protection device is hard to be understood and mastered by students either.With support of virtual instrument,based on the new principle of micro-computerized differential protection for transformer,the micro-computerized transformer protection experimental model is setup.By adopting the functions of LabVIEW virtual instrument,the program is written and operated,and the experimental panel interface that is easier to be understood is established.The results indicate that the experimental panel helps the students better understand the differential protection principle of transformer.