220 kV及以上主变保护存在问题探讨

Discussion of protection problems existed in the main transformer 220 kV and above

首先提出了220 kV及以上的主变保护在配置及应用中存在的相位补偿方式选择、励磁涌流应对能力以及阻抗保护灵敏度问题,然后分别针对上述问题介绍了相应的解决及改善方法。

First proposed the main transformer 220 kV and above existed protection problems in configuration and application of the phase compensation of mode selection, and excitation inrush current response capacity and impedance protection sensitivity, then respectively introduced the corresponding solutions for the above problems and improving methods.