500kV变电站主变温度控制系统的表差修正方法研究

Study on the Method of the Differential Correction of the Main Transformer Temperature Control System in 500kV Substation

本文通过长期的主变温度数据跟踪与试验,对某500k V主变温控系统的变送器与控制回路故障制定了试验排查方案。重点提出了一种软补偿方法,对温度进行修正,从而消除两表差。整改后运行结果证明该补偿方法可有效修正温度误差,消除两表差,大大提高了主变运行的安全可靠性,对主变安全运行具有重要意义。

Papers by long-term data tracking and test the transmitter on a 500kV transformer and control circuit failure of temperature control system developed experimental investigation program.Soft Key proposes a compensation method for temperature correction,eliminating the difference between the two tables.Experimental results show that the compensation method can effectively correct the temperature error,poor clearing two tables,greatly improving the safety and reliability of the main transformer operation,the temperature is important for operation of the power system.