变压器差动保护校验APP的开发与应用

Development and application of transformer differential protection debugging software

介绍了各主流厂家的变压器差动保护原理,对各厂家及型号的保护装置在差动保护算法上的差异进行了比较,分析造成现场校验计算复杂的原因。提出利用软件完成试验数据计算,在Android开发环境下设计完成了集成稳态量比率差动、分侧差动、小区差动等全系列主保护功能的校验软件,可根据现场实际选择对应的厂家型号进行分析校验,并用于实际应用,试验结果表明利用本校验软件可以明显提高变压器差动保护校验的效率及准确率。

The principle of differential protection for transformers of major manufacturers was introduced,the differences in differential protection algorithms between manufacturers and models of protection devices were compared,and the reasons for the complexity of on-site debugging were analyzed.It is proposed to use the software to complete the debugging data calculation and design a complete set of debugging software that integrates a full range of main protection functions such as steady state ratio differential,side differential,and cell differential in Android development environment.According to the site practicality the corresponding manufacturer model can be chosen to analyze and verify,and practically applied.The application results show that this calibration software can significantly improve the efficiency and accuracy of the differential protection debugging.