发电机励磁系统低励限制对进相深度的影响

Influence of Low Excitation Limit in Excitation System of Generator on Leading Power Factor Depth

发电机进相试验完成后,根据试验结果需要对励磁系统的低励限制曲线定值进行设置。不同的励磁系统的低励限制曲线设置原理有所不同,导致不同发电机即使进相定值设置相同,而实际运行时进相深度会不同。将讨论2种低励限制曲线设置对发电机进相深度的影响。

After finishing the leading power factor test of generator, the set points for the low excitation limit curve should be determined according to the test results. But different setting principles cause different leading power factor depth during the actual operation of generators, even if the different generators have the same set points for the leading power factor operation. The influences of two settings for low excitation limit curve on leading power factor depth are discussed.