components can be negligibk because the inductive reactance
value of rotor circuits relative to high-tiequency components
is much greater than the resistance. That is to say, high-
frequency components don't exist in the flux linkage of rotor
circuits. Because the time constant of damper Winding is quite
small, the effect of damper winding on low-frequency
components is also negligible. That is to say, the low-
frequency components of currents in damper winding need not
to be considered