发电机变压器组电流型保护极性的组合

发电机变压器组保护,对于电厂发电机组的安全运行至关重要。如何正确又快速地进行二次回路极性的组合和检查, 是一项值得探索的问题。CT 二次回路极性组合的原则,通常是通过绘制向量图的传统方法来确定的, 实施起来繁琐易出错。新实践的极性组合法分四步骤, 判别简单、正确可靠、使用灵活、查找方便、工作效率高, 经多个工程验证效果显著,可在电气调试工程中推广应用。

Generator-Transformer Set Current Type Protective Polarity Combination

Generator-transformer set protection is very important to the safety operation of the units.It is worthy investigating how to combine and examine the secondary circuit polarity quickly and accurately.CT secondary circuit polarity combination principles are normally determined through traditional vector plots,which is prone to mistakes during installation.New method consists of four steps,which are simple to judge,accurate and reliable,flexible,easy to lookup and highly efficient.It has been validated in many projects and can be used in electric test works.