变压器比率差动保护调试电流计算软件的开发与应用

Development and Application of the Debugging Current Calculation Software for Transformer Differential Protection

基于VISUAL C++6.0开发环境,在MFC框架下开发了变压器比例差动保护调试电流计算软件,通过输入变压器保护相关参数,计算软件能够自动计算保护调试时仪器所需加入的计算电流,大大节约了新建变电站主变保护验收和主变保护年检的工作时间,最后,文章给出了220k V滨湖变主变保护年检计算数据,并在现场实际验证,证明计算软件计算结果的正确性和有效性。

Based on Visual C ＋ ＋ 6. 0,a debugging current calculation software for transformer differential protection has been developed under the framework of MFC. With the entered relevant parameters of transformer protection,the software can automatically calculate the required debugging current,which greatly saves the working time on the acceptance in a new substation and annual inspection of main transformer protection. This paper finally presents the calculation data of transformer protection inspection in the 220 k V Binhu Substation and confirms the correctness and effectiveness of the calculation result through on-site verification.